Littérature scientifique sur le sujet « Oil Encounters »
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Articles de revues sur le sujet "Oil Encounters"
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Dharma, Fernando, Wilson Novarino et Jabang Nurdin. « Sumatran Hornbills in Fragmented Forest Areas in Oil Pam Plantation in South Solok, West Sumatra ». Sarawak Museum Journal LXXIX, no 100 (1 décembre 2018) : 159–66. http://dx.doi.org/10.61507/smj22-2018-ft1q-12.
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A study on hornbill populations in fragmented forest areas within oil palm plantations in Tidar Kerinci Agung (TKA) Company, West Sumatra was carried out from July to August 2015 in 60 Hectare fragmented forest areas. The objective of this study was to document hornbill species richness using the transect method on three main lines along two km and using call recognition for population census of hornbill. During the study, we recorded 82 individuals of eight species after 60 km walk. We encountered using two methods (Sighting and Calls Methods); Anorrhinus galeritus twenty-one encounters, Berenicornis comatus single encounter, Rhabdotorrhinus corrugatus two encounters, Rhyticeros undulatus two encounters, Anthracoceros malayanus sixteen encounters, Anthracoceros albirostris seven encounters, Buceros rhinoceros thirty-one encounters and two encounters of Rhinoplax vigil.
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Glover, Nick W., et David F. Dickins. « Response Plans for Arctic Oil and Ice Encounters ». International Oil Spill Conference Proceedings 1999, no 1 (1 mars 1999) : 639–46. http://dx.doi.org/10.7901/2169-3358-1999-1-639.
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ABSTRACT Ice conditions, in dynamic stages of development and degradation, are present for over 280 days out of every calendar year in the Beaufort Sea adjacent to the operating oilfields on the Alaskan North Slope. Additionally, wind driven ice invasions during the open water season, July through September typically, may also occur for short periods throughout the season. This presence combined with extreme arctic conditions routinely presents a challenge to mounting a safe and effective oil spill response action. In order to overcome this challenge responders must develop response action plans not only with an understanding of the physical environment but also with a basic understanding of the effect this environment will have on the fate and behavior of the spilled oil. Arctic spill response strategies, worldwide, have been developed through years of experience with both offshore and onshore drilling and production operations in all types of sea and ice conditions. North Slope response action plans are based on this experience, intense field training, and ground truthing of related research and development projects.
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Fuglem, Mark, Ian Jordaan et Greg Crocker. « Iceberg – structure interaction probabilities for design ». Canadian Journal of Civil Engineering 23, no 1 (1 février 1996) : 231–41. http://dx.doi.org/10.1139/l96-024.
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When designing systems to operate in regions through which icebergs travel, one of the first inputs of interest is the expected numbers of encounters with icebergs. In this paper, geometric solutions are presented for a cylindrical gravity-based structure, a floating production vessel, and a cargo vessel. The required inputs are the average areal density of icebergs, the average iceberg water line length, and the average iceberg drift velocity. Example calculations are presented for the Grand Banks region off Canada's east coast. Key words: iceberg, encounter, probability, risk, design, oil, production, Grand Banks, structure, tanker.
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Reeves, Randall R., Phillip J. Clapham et Sara E. Wetmore. « Humpback whale (Megaptera novaeangliae) occurrence near the Cape Verde Islands, based on American 19th century whaling records ». J. Cetacean Res. Manage. 4, no 3 (11 mai 2023) : 235–53. http://dx.doi.org/10.47536/jcrm.v4i3.836.
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American 19th century whalers often passed through the Cape Verde Islands (CVI) during the boreal winter and some of them spent a few weeks or months hunting humpback whales (Megaptera novaeangliae) in the bays and near-shore waters of the archipelago. Logbooks were examined from 26 voyages that involved some humpback whaling at the CVI, and information was obtained from various sources on approximately 77 additional voyages that definitely or probably humpbacked there. Twenty of the logbooks contained 396 records of an estimated 1,105 humpback whale encounters (catches, strikes and sightings). The largest estimated numbers of encounters and most of the whaling activity were around the islands of Sal, São Vicente and São Nicolau (272, 269 and 229 encounters, respectively). The peak month for humpback whale occurrence in the region appears to have been March (160 records of an estimated 465 whale encounters), with many records from February (110 records of 282 encounters) and April (86 records of 258 encounters). Catch data from the logbooks were combined with commercial data on landings of oil and reported vessel positions to estimate numbers of humpback whales taken in the CVI by the American fleet. Results suggest that American whaling for humpback whales was most intensive in the Cape Verdes during the 1850s and 1860s when at least a few hundred and perhaps more than 500 whales were killed in at least 45 and perhaps more than 80 vessel-seasons. In many respects, the Cape Verdes fishery was similar to that in the West Indies, with cows and calves frequently taken and a similar seasonal peak in whale occurrence. A crude analysis of encounter rates suggests that humpback whale density in the CVI was comparable to that in the major West Indies grounds, a situation that is clearly not the case today.
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Câmara, A. S., F. C. Ferreira, J. E. Fialho et E. Nobre. « Pictorial Simulation Applied to Water Quality Modeling ». Water Science and Technology 24, no 6 (1 septembre 1991) : 275–81. http://dx.doi.org/10.2166/wst.1991.0166.
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Pictorial simulation models considering pictorial entities and operations are introduced. Pictorial entities are defined by their shape, size, color and position. Pictorial operators include reproduction (copy of a pictorial entity), mutation (expansion, rotation, translation, change in color), fertile encounters (intersection, reunion) and sterile encounters (absorption). Pictorial simulation is applied to two water quality management problems to illustrate its potential applications: oil spill accidents and waste stabilization ponds ecology. Future developments tied to cellular automata modeling are also discussed.
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Rusiecki, Jennifer, Melannie Alexander, Erica G. Schwartz, Li Wang, Laura Weems, John Barrett, Kate Christenbury, David Johndrow, Renée H. Funk et Lawrence S. Engel. « The Deepwater Horizon Oil Spill Coast Guard Cohort study ». Occupational and Environmental Medicine 75, no 3 (12 septembre 2017) : 165–75. http://dx.doi.org/10.1136/oemed-2017-104343.
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ObjectivesLong-term studies of oil spill responders are urgently needed as oil spills continue to occur. To this end, we established the prospective Deepwater Horizon (DWH) Oil Spill Coast Guard Cohort study.MethodsDWH oil spill responders (n=8696) and non-responders (n=44 823) who were members of the US Coast Guard (20 April–17 December 2010) were included. This cohort uses both prospective, objective health data from military medical encounters and cross-sectional survey data. Here, we describe the cohort, present adjusted prevalence ratios (PRs) estimating cross-sectional associations between crude oil exposure (none, low/medium, high) and acute physical symptoms, and present adjusted relative risks (RRs) based on longitudinal medical encounter data (2010–2012) for responders/non-responders and responders exposed/not exposed to crude oil.ResultsResponders and non-responders in this large cohort (n=53 519) have similar characteristics. Crude oil exposure was reported by >50% of responders. We found statistically significant associations for crude oil exposure with coughing (PRhigh=1.78), shortness of breath (PRhigh=2.30), wheezing (PRhigh=2.32), headaches (PRhigh=1.46), light-headedness/dizziness (PRhigh=1.96), skin rash/itching (PRhigh=1.87), diarrhoea (PRhigh=1.76), stomach pain (PRhigh=1.67), nausea/vomiting (PRhigh=1.48) and painful/burning urination (PRhigh=2.89) during deployment. Longitudinal analyses revealed that responders had elevated RRs for dermal conditions (RR=1.09), as did oil-exposed responders for chronic respiratory conditions (RR=1.32), asthma (RR=1.83) and dermal conditions (RR=1.21).ConclusionsWe found positive associations between crude oil exposure and various acute physical symptoms among responders, as well as longer term health effects. This cohort is well positioned to evaluate both short-term and long-term effects of oil spill exposures using both self-reported and clinical health data.
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Asamoah-Gyadu, J. « ‘Function to Function’ : Reinventing the Oil of Influence in African Pentecostalism ». Journal of Pentecostal Theology 13, no 2 (2005) : 231–56. http://dx.doi.org/10.1177/0966736905053249.
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AbstractThis paper explores the practices, teachings, positive benefits, problematic aspects and perils associated with anointing with oil in recent African Pentecostal/charismatic ministries and churches. With particular focus upon the author’s first-hand encounters with these phenomena in Ghana and Nigeria, various anointing practices and teachings are commended and critiqued in terms of biblical precedents and sacramental theological insights.
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Mohd Aszwan Jimal, Nur Aqilah Mohamad, Ahmad Razani Haron, Pungut Ibrahim, Herwansyah Lago, Chai Chang Yii, Hazlihan Haris, Hazwan Horace, Markus Diantoro et Megat Muhammad Ikhsan Megat Hasnan. « Investigation Seebeck Effect of Industrial High Voltage Transformer Oil Towards Industrial Insulator Oil Condition Detection ». Journal of Advanced Research in Applied Mechanics 115, no 1 (31 mars 2024) : 131–40. http://dx.doi.org/10.37934/aram.115.1.131140.
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Transformer oil serves as the main dielectric and interacts with solid insulation, encounters the environment, and conveys a lot of information. However, undesirable contamination of transformer oil like water or moisture in the transformer oil will reduce the transformer's effectiveness. This study is the first investigation of the potential of using the thermoelectric effect for transformer oil condition testing towards high voltage insulator oil condition detection. This study has found that the used oil sample with various percentages of water content produced a different Seebeck coefficient which shows the potential of using the thermoelectric effect as a simple, cheap, and versatile method to test industrial oil insulator conditions. The results of the Seebeck coefficient for each condition are 0.0003 mV/K (original), 0.0107 mV/K (4 % of water added), and 0.0131 mV/K (40 % of water added), respectively. The industrial oil shows different Seebeck magnitude between oil before and after thermal aging which show a significant decrease of Seebeck magnitude of the industrial oil insulator with an increase of thermal ageing.
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Bovensiepen, Judith. « Can Oil Speak ? On the Production of Ontological Difference and Ambivalence in Extractive Encounters ». Anthropological Quarterly 94, no 1 (2021) : 33–63. http://dx.doi.org/10.1353/anq.2021.0013.
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Chowdary, Gunnam Anjany. « Comparative evaluation of various herbal agents for the disinfection of guttapercha cones – An in vitro study ». IP Indian Journal of Conservative and Endodontics 8, no 2 (15 mai 2023) : 86–89. http://dx.doi.org/10.18231/j.ijce.2023.016.
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In clinical practice, the dentist often encounters with the problem of post obturation infection, one possible reason for this could be the introduction of contaminated G.P into the root canal space. Herbal agents are gaining popularity these days as they are natural alternatives and are economical. So herbal agents like PanchaTulasi, Ozonated olive oil and Lemon grass oil are selected as experimental chair side disinfectants as GP cannot be sterilized owing to its inherent properties. The estimated sample size was 45 and they are grouped and artificially contaminated with E faecalis and S aureus and treated with respective disinfectants followed by incubation and checked for their efficacy using a digital microbiological colony counter. Lemon grass oil was found to be the most effective in both the groups followed by Panchatulasi in S aureus group and ozonated olive oil in E faecalis group.
Thèses sur le sujet "Oil Encounters"
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Dehghani, Arash. « “Integrated with smoke and fire” : A Dossier from the Abadan Petroleum Landscape ». Electronic Thesis or Diss., Université de Lille (2022-....), 2025. https://pepite-depot.univ-lille.fr/ToutIDP/EDSHS/2025/2025ULILH007.pdf.
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Cette thèse de doctorat est un projet de recherche-création qui explore les « rencontres pétrolières » à Abadan, une ville portuaire et raffinerie située à la frontière sud-ouest de l'Iran. À travers ce projet, un monde fictif est inventé pour décrire, examiner, narrer et, déconstruire, et réimaginer le paysage pétrolier d'Abadan. Ces dernières décennies, des recherches interdisciplinaires dans les domaines des arts, des sciences humaines environnementales, de la sociologie, de l'ethnographie, de la géographie humaine et des études culturelles ont abordé les combustibles fossiles au-delà de leur rôle comme source d'énergie, en se concentrant sur leurs valeurs et significations sociales et culturelles. En dialoguant avec ces travaux, cette thèse s'articule autour des « rencontres pétrolières » dans le paysage pétrolier d'Abadan. Le regard porté sur ces rencontres remet en question deux perspectives prédominantes : d'une part, la vision extractiviste qui réduit le pétrole à une simple ressource ou propriété d'un territoire politique (national ou colonial), ou à un carburant/produit de base dans le système global du pétrocapitalisme ; et d'autre part, les récits dominants de transition qui dissocient la connaissance du pétrole des contextes temporels et géographiques où cette connaissance se forme. Le monde fictif de cette recherche n'a pas été formulé à l'avance comme un protocole opérationnel. Il a plutôt émergé comme un résultat inattendu d'une approche autoréflexive qui a évolué tout au long du processus de recherche et s'est articulée autour de deux préoccupations principales :a) Penser et agir dans le « contexte » de la tâche de recherche. Cela implique de prendre en compte les échecs, les possibilités, les limites, les détours et les risques liés à la conduite d'une recherche dans les conditions politiquement et culturellement instables de l'Iran contemporain, où les recherches de terrain sont périlleuses et où les archives sont inaccessibles et parsemées de silences. b) Construire un récit hétérogène du paysage pétrolier, entrelaçant diverses rencontres et des imaginaires conflictuels du pétrole. Un récit capable de saisir les incertitudes nuancées, l'opacité et l'étrangeté de la présence du pétrole dans ce paysage. Le récit de ce monde fictif suit Iman Tanhaei, un doctorant iranien en histoire, et son amie Scheherazade Moayedi-Bjørge, une chercheuse irano-norvégienne. Tanhaei entreprend une quête pour retracer l'histoire de sa famille dans les archives pétrolières, atteignant finalement les terres pétrolières. Au milieu d'un soulèvement politique menant à une révolution, Tanhaei disparaît. Moayedi-Bjørge revient d'exil, découvre son projet inachevé et travaille à publier ses découvertes.Les stratégies et techniques de fiction telles que le personnage-auteur, la vraisemblance, le dialogue intérieur, le récit-cadre, la multiperspectivité et la temporalité non linéaire permettent d'évoquer les histoires, souvenirs, anecdotes, récits, images, imaginaires et expériences sensorielles des habitants, qui deviennent les éléments structurants du récit du paysage pétrolier. Cependant, le monde fictif ne se contente pas de décrire les rencontres et les imaginaires façonnés par le pétrole, mais propose également un autre mode d'imaginer l'existence dans le monde du pétrole. Il invite le lecteur à s'engager activement avec plusieurs personnages, événements et conditionsThis PhD is an artistic research project investigating the “oil encounters” in Abadan, a refinery and port city on the southwestern border of Iran. Through this project, a fictional world is invented to describe, scrutinise, narrate, dismantle and reimagine the petroleum landscape of Abadan. In recent decades, interdisciplinary research across the fields of arts, environmental humanities, sociology, ethnography, human geography, and cultural studies have addressed fossil fuels beyond their role as means of energy, focusing on their social and cultural values and meanings. Critically engaging with these works, this thesis centres on the “oil encounters” in the Abadan petroleum landscape. The focus on these encounters challenges two predominant perspectives: first, the extractivist worldview, which reduces petroleum to merely a resource or property of a political territory (i.e., national, colonial), or a fuel/commodity within the petro-capitalist global system; and second, the overarching narratives of transition that disconnect how we know oil from when and from where we know oil. The fictional world of this research was not formulated in advance as a protocol for research operation. Instead, it emerged as an unexpected outcome of a self-reflective approach that evolved throughout the research process, shaped by two primary concerns: a) To think and act within the “context” of the research task. It considers the failures, possibilities, limits, detours, and risks of conducting research under the politically and culturally unstable conditions of contemporary Iran, where field research is perilous and archives are inaccessible and riddled with silences. b) To construct a heterogeneous narrative of the petroleum landscape, intertwining diverse encounters and conflicting imaginaries of oil. A narrative capable of capturing the nuanced uncertainties, opacity, and uncanniness of oil's presence in the landscape.The storyline of this fictional world follows Iman Tanhaei, an Iranian doctoral student researching history, and his friend, Scheherazade Moayedi-Bjørge, a Norwegian-Iranian scholar. Tanhaei embarks on a quest to trace his family history within petroleum archives, ultimately reaching the lands of oil. Amid a political uprising leading to a revolution, Tanhaei disappears. Moayedi-Bjørge returns from exile, discovers his unfinished project, and works on it to publish his findings.The strategies and techniques of fiction such as author surrogate, verisimilitude, interior dialogue, frame story, using multiple perspectives and non-linear temporality allow me to evoke the stories, memories, anecdotes, tales, images, imaginations, and sensory experiences of the inhabitants as the elements in the narrative of the petroleum landscape. However, the fictional world functions not only to describe the encounters and imaginations that petroleum has formed but also to propose a different mode of imagining being in the world of petroleum. It invites the reader to actively engage with multiple characters, events, and conditions
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Aghoghovwia, Philip Onoriode. « Ecocriticism and the oil encounter : readings from the Niger Delta ». Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86488.
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Thesis (PhD)--Stellenbosch University, 2014.ENGLISH ABSTRACT: The study seeks to understand the ways that environmental concerns and the phenomenon of oil production in the Niger Delta are captured in contemporary literary representations. In the thesis, I enlist several works, five poetry collections and a Nollywood video film, produced between 1998 and 2010, to investigate and analyse the different ways they engage with the effects of oil extraction as a form of violence that is not immediately apparent. Amitav Ghosh argues that representing something of such magnitude as oil modernity can only be done adequately through narratives of epic quality such as realist fiction or the historical novel. I move away from Ghosh’s assumptions to argue that the texts, poetry and video film have adequately captured the oil encounter, but not on a grand scale or through realist fiction. I situate Niger Delta representations of the oil encounter within the intellectual frame of petrocultures, a recent field of global study which explores the representational and critical domain within which oil is framed and imagined in culture. In their signification of what I call the “oil ontology”, that is, the very nature and existence of oil in the Delta, lived-experience in its actual quotidian specificity, takes precedence in the imagination of the writers that I study. I propose that the texts, in very different ways, articulate these experiences by concatenating social and environmental concerns with representations of the oil encounter to produce a petro-literary form which inflects and critiques the ways in which oil extraction, in all its social and environmental manifestations, inscribes a form of violence upon the landscape and human population in the oil sites of the Delta. I suggest that the texts articulate a place-based, place-specific form of petroculture. They emphasis the notion that the oil encounter in the Delta is not the official encounter at the point of extraction but rather the unofficial encounter with the side-effects of the oil extraction. The texts, in very different ways address similar concerns of violence as an intricate feature in the Delta, both as a physical, spectacular phenomenon and as a subtle, unseen category. They conceive of violence as a consequence of the various forms of intrusion and disruption that the logic of oil extraction instigates in the Niger Delta. I suggest that the form of eco-poetics that is articulated gives expression to environmental concerns which are marked off by an oily topos in the Delta. I maintain that in projecting an artistic vision that is sensitive to environmental and sociocultural questions, the writings that we encounter from this region also make critical commentary on the ontology of oil. The texts conceive the Niger Delta as one that provides the spatial and material template for envisioning the oil encounter and staging a critique of the essentially globalised space that is the site of oil production.
AFRIKAANSE OPSOMMING: Hierdie studie ondersoek die maniere waarop omgewingsbelange en die instellings van olieproduksie in die Delta van die Niger-rivier vasgevang word in kontemporêre letterkundige voorstellings. In my tesis gebruik ek verskeie werke – vyf versamelings van gedigte en ‘n Nollywood [Nigeriese] video, almal geskep tussen 1998 en 2010 – om die verskillende wyses waarop hierdie tekste omgaan met die gevolge van olie-ontginning, as ‘n vorm van geweld wat nie onmiddellik opvallend is nie, na te vors en te analiseer. Amitav Ghosh argumenteer dat, om ‘n fenomeen van sulke geweldige omvang soos olie-moderniteit uit te beeld, slegs na behore uitgevoer kan word in narratiewe van epiese dimensies; byvoorbeeld realistiese fiksie of die historiese roman. Ek beweeg weg van Ghosh se aannames deur te argumenteer dat die tekste (gedigte en ‘n video-film) wel die olie-ervaring behoorlik vasvang, maar nie op groot skaal soos in realistiese fiksie nie. Ek plaas die Niger-Delta uitbeeldings van die olie-ervaring binne die groter raamwerk van Petro-kulture: ‘n nuwe studiegebied wat die voorstellings- en kritiese domein waarbinne olie gekonseptualiseer en kultureel verbeel(d) word, ondersoek. In hul voorstellings van die olie-ontologie van die Delta neem die ervaringswêreld in sy daaglikse werklikhede (in die gekose skrywers se uitbeelding daarvan) ‘n sentrale plek in. Ek konstateer dat die tekste, hoewel op heel uiteenlopende maniere, hierdie ervarings artikuleer deur sosiale en omgewings-oorwegings byeen te bring met uitbeeldings van die olie-ervaring ten einde ‘n petro-literêre vorm te skep wat die maniere waarop olie-ontginning, in al die sosiale en omgewings-effekte daarvan, ‘n vorm van geweld op die landskap en die menslike bevolking van die olie-ontginningsgebiede van die Delta inskryf, inflekteer en krities analiseer. Ek stel dit dat die tekste ‘n plek-gebaseerde en gebieds-spesifieke vorm van Petrokultuur artikuleer. Hulle benadruk die feit dat die olie-ervaring in die Delta nie die offisiële ontmoeting by die ontginningspunt is nie, maar eerder die onoffisiële ondervinding van die newe-effekte van die olie-ontginningsproses. Op hul verskillende wyses spreek die tekste ‘n ooreenstemmende besorgdheid uit aangaande die ingewikkelde rol wat geweld in die Delta speel – beide as ‘n fisiese, ooglopende fenomeen en as ‘n subtiele, ongesiene kategorie. Die tekste konseptualiseer geweld as seinde die gevolg van die verskeie vorme van ingryping en versteuring wat deur die logika van die olie-ontginningsproses in die Niger-Delta meegebring word. Ek suggereer dat die vorm van eko-poëtika wat hier geartikuleer word, uitdrukking gee aan omgewings-oorwegings wat in die Delta deur ‘n olie(rige) topos omgrens word. Ek maak die stelling dat, deur middle van ‘n artistieke visie wat gevoelig is vir omgewings-en sosiale vrae, die tekste wat in hierdie gebied ontstaan, kritiese kommentaar bied op die ontologie van olie. Die tekste verbeel die Niger-Delta as ‘n gebied wat die ruimtelike en materiële templaat voorsien om die olie-ervaring te visualiseer en te konseptualiseer, om sodoende ‘n kritiek te skep van die geglobaliseerde ruimte van olie-produksie.
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Joly, Tara. « Making productive land : utility, encounter, and oil sands reclamation in northeastern Alberta, Canada ». Thesis, University of Aberdeen, 2017. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231794.
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This thesis is a landscape ethnography examining conflicting epistemologies and land use values in the Athabasca region of subarctic Canada. Based on 18 months of fieldwork in Fort McMurray, Alberta with the Fort McMurray Métis community and peatland scientists, I analyse oil sands reclamation as a site of encounter between Indigenous and settler peoples. I show how reclamation, a process of reconstructing ecological integrity of a post-extractive landscape for future use, is a historically contingent activity that centres on settler colonial ideologies of productivity. I argue that this ideology spurred a process that I call 'making productive land' which seeks to 'improve' upon or transform the Athabasca region from Indigenous homeland into settler territory or 'useful' land. Weaving archival documents with experiential material from ethnographic fieldwork, I analyse the Athabasca region as a multilocal and multivocal place to demonstrate that Indigenous communities such as the McMurray Métis hold their own definitions of land use that exist alongside, beyond, against, and entangled with settler notions of productivity. I conclude that, for Métis community members, reclaimed areas in fact represent a diminished experience of place or an unproductive landscape. For reclamation to be successful for Métis community members, I contend that reclamation policy and practice must expand beyond purely scientific and resource-based utility narratives to involve a relational element of healing and Métis notions of use that transcend settler colonial ideals of 'productive' land.
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Lin, Shen-Te. « Musée en peinture : discontinuité / continuité / extension : souffle et résonance d'une pratique artistique entre peinture chinoise et occidentale ». Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01H306.
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La relation entre les peintures chinoise et occidentale apparait comme une rencontre entre l’eau et l’huile. Mélanger les deux étant impossible, comment, dès lors, un artiste entre deux cultures, peut-il faciliter leur dialogue et devenir un passeur ? Cette recherche tente d’associer la technique des matériaux occidentaux avec l’expression du pinceau et de l’encre liés au concept du plein et du vide afin d’explorer des oppositions complémentaires, en créant une réalité diluée dans un contraste harmonisé. La réflexion s’est concrétisée par des peintures en trois formats : la série, le rouleau et l’album, intitulées Musée en peinture. Formats qui permettent d’aborder aussi bien les questions de l’écoulement du temps, de la circulation du regard, de la dynamique spatiale, que celles de l’extension et de la suggestion. Ces peintures interrogent le phénomène du musée en portant un regard ironique, critique et empathique sur les spectateurs et leurs travers. Elles témoignent aussi de la conversation avec les maîtres anciens et d’un cheminement dans les musées. La réalisation de ce musée des musées consiste en un processus de transfert de la photographie vers la composition photographique, puis vers la peinture. Ce processus se rapproche de la structure cinématographique, à partir du montage filmique d’Eisenstein, et de la notion de continuité et de discontinuité de Raoul Ruiz. Avec la boîte de Poussin numérique, on joue à la fois le rôle de peintre, de metteur en scène et de documentariste. Exploré, le passé se mue en espace, en reconstituant le passage du monde réel au monde virtuel, du ça-a-été de Roland Barthes à la notion du ça n’a pas étéThe relationship between Chinese and Western painting appears as a meeting of water and oil. Mixing the two seems impossible, so how can an artist create a dialogue between two cultures and media, effectively becoming a cultural conduit ? This research attempts to combine the techniques of Western materials with the expression of Chinese brush and ink, which is linked to the concept of fullness and tangible versus emptiness and abstract. From here, we explore the complementary opposition, create a “diluted reality” in a harmonized contrast. This reflection, entitled Museum in Painting, is represented in three different formats: the series, the scroll, and the album. These formats allow us to explore ideas of the flow of time, the circulation of the gaze, the spatial dynamics, as well as the topic of Extension and Suggestion. From the satirical, critical, and empathic point of views, we investigate the audience and their quirks, questioning the phenomenon of museum. These works exhibit my intellectual journey through the museum, and the conversation with the old masters. The realization of this museum of museums is a transfer process from photography to digital composition, and then to the painting. It takes the concepts of Eisenstein's film montage and Raoul Ruiz’s continuity and discontinuity to explore its relevance to the cinematographic composition and structure. With the “Digitized Box of Poussin”, we played the role of painter, director and documentary filmmaker to explore the idea of past events becoming a space to re-create a pathway from the real world to the virtual world, from Roland Barthes’ concept of “what happened” to the concept that is put forward that “it didn’t happen”
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Chen, I.-Fan, et 陳一帆. « Tainan–The Creations of Oil Painting,an Encounter between Literature and Art ». Thesis, 2013. http://ndltd.ncl.edu.tw/handle/v7zqf7.
Texte intégralRésumé :
碩士東方設計學院
文化創意設計研究所
101
Turning into the modern society, a city with long history should develop its special characteristic. Though all of the cities search for their identification and opportunities, Tainan stands on a vantage point. Nowadays, everything is led by business. However, with more cultural accomplishments, visitors gain more cultural knowledge and understand the beauty of Tainan. Tainan, the earliest developed city in Taiwan, in the history of more than 300 years, experienced both miserable and sweet past. Literature authors went through different periods and nurtured by the land. The passion toward this land was between the lines. In another way, artists expressed their love to the land. Surrounded by multiple elements, literature authors described the land and showed their concern to the land sincerely. The works of literature and art encountered each other in the humanity city through different space-time. Artists carried on their creations of oil painting with literary creations and presented the public another level of thinking in human and history background. Look forward offering the research as a reference to those who are interested in the theme for a further study.
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Chien, Liu Meng, et 劉孟茜. « Transition : The encounter of the Obasan with flower essences and essential oil ». Thesis, 2009. http://ndltd.ncl.edu.tw/handle/69196655209548012995.
Texte intégralRésumé :
碩士輔仁大學
心理學系
98
Transition: The encounter of the Obasan with flower essences and essential oil. Abstract： This paper records the journey of my study and contemplation at Department of Psychology, Catholic Fu Jen University from where I have reconnected myself with academic circle at the age of forty plus years after almost two decades since graduation. It is also in this learning field many related events occurred while experiencing the interplay of time and space. With limited intellectual comprehension of the theories I have learned during four years of my study, I am not able to point out which theory or methodology this paper is based upon. However it is the fact that such learning experience at Catholic Fu Jen University has offered me the opportunity with full devotion and focus to catch the real meaning of all the lectures given by professors at different classrooms, as well as the best effort of trying to understand and obtain the knowledge within my own limits. With first person narration, this paper intends to review and to put in order my personal life and encounters with others in the past few years and to follow up with my own previous track of living. The literal expression of this paper is in line with the historical background of relationship between flower essence and essential oil. And lastly this paper also intends to explore the possibility that may integrate the application of flower essence and essential oil for more effectiveness so that it will benefit the practice of profession in helping people.
Livres sur le sujet "Oil Encounters"
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Chris, Eipper. Hostage to fortune : Bantry Bay and the encounter with Gulf Oil. St. John's, Nfld., Canada : Institute of Social and Economic Research, Memorial University of Newfoundland, 1989.
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Serebryakov, Oleg. Ecological and geological problems of development of oil and gas fields in the Caspian region. ru : INFRA-M Academic Publishing LLC., 2017. http://dx.doi.org/10.12737/24289.
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The paper summarizes and examined extensive evidence on the environmental, geological and technological challenges of exploration and production of oil and gas, encountered during the development of the gigantic fields. Investigated environmental problems of underground disposal of wastes, the formation of zones of technogenic pollution, ecology megalonyx pressures and many others. Describes the environmental effects of oil and gas companies on the environment. The proposal for reducing the negative anthropogenic influence on the geoecological conditions of the environment. Justified the monitoring of the exploration and exploitation of deposits of natural raw materials.
Is designed to masters, post-graduate students and students studying on the specialty "Environmental Geology", "Geology and Geochemistry of combustible minerals", "Geology of marine oil and gas fields", "Hydrogeology and engineering Geology", a wide range of scientific and industrial workers of the oil and gas industry, high school teachers and graduate students geoenvironmental, environmental, oil and gas fields.
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translator, Yi Jiangnan, et Wan Huiqing artist, dir. Oil painting series : Two-way culture shock : a humorous look at when Westerners encounter bizarre Chinese culture. Beijing Shi : Wu zhou chuan bo chu ban she, 2012.
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Bachmann, Hugo, et Walter Ammann. Vibrations in Structures. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 1987. http://dx.doi.org/10.2749/sed003e.
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<p>«Vibrations in Structures» concentrates on vibrations in structures as excited by human motion or machine operation. Man-induced vibrations may arise from walking, running, skipping, dancing, etc. They occur mostly in pedestrian structures, office buildings, gymnasia and sports halls, dancing and concert halls, stadia, etc. Existing publications treat by and large some isolated aspects of the problem; the present one attempts, for the first time, a systematic survey of man-induced vibrations. Machine-induced vibrations occur during the operation of all sorts of machinery and tools with rotating, oscillating or thrusting parts. The study concentrates rather on small and medium size machinery placed on floors of industrial buildings and creating a potential source of undesirable vibrations. The associated questions have rarely been tackled to date; they entail probiems similar to those of man-induced vibrations.</p> <p>The book is consciously intended to serve the practising structural engineer and not primarily the dynamic specialist. It should be noted that its aim is not to provide directions on how to perform comprehensive dynamic computations. Instead, it attempts the following:</p> <ol> <li>to show where dynamic problems could occur and where a word of caution is good advice;</li> <li>to further the understanding of the phenomena encountered as well as of the underlying principles;</li> <li>to impart the basic knowledge for assessing the dynamic behaviour of the structures or structural elements;</li> <li>to describe suitable measures, both preventive to be applied in the design stage and remedial in the case of rehabilitation.</li> </ol>
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Proceedings : Oil & Gas Economics, Finance & Management Conference, 28-29 April, 1992 London, Uk. Society of Petroleum, 1992.
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Crude Chronicles : Indigenous Politics, Multinational Oil, and Neoliberalism in Ecuador (American Encounters/Global Interactions). Duke University Press, 2004.
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Sawyer, Suzana, et Suzana Sawyer. Crude Chronicles : Indigenous Politics, Multinational Oil, and Neoliberalism in Ecuador (American Encounters/Global Interactions). Duke University Press, 2004.
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Morshed, Ali. An Introduction to Asset Corrosion Management in the Oil and Gas Industry. 3e éd. NACE International, The Worldwide Corrosion Authority15835 Park Ten Place, Houston, TX 77084, 2020. https://doi.org/10.5006/37657.
Texte intégralRésumé :
In the eight years since the first edition of this book was published by NACE International, the demand for corrosion management expertise and services (i.e., training, auditing, consultancy, and field implementation) has been growing, both within the hydrocarbon and the non-hydrocarbon industries. This latest edition is almost a total revamp of the previous one and greatly benefits from the author’s continuous learning process through his frequent involvement with various oil and gas sectors and different industries as a corrosion management trainer, auditor, and consultant. Since the latter half of 2015, when he started working as an independent corrosion engineering and corrosion management consultant, he has been increasingly engaged with numerous upstream, midstream, and downstream oil and gas assets as well as in various non-hydrocarbon industries. Such continuous encounters have taught him many new valuable lessons and provided him with a much deeper insight into how we often manage our assets’ integrity, our strengths and weaknesses, the sometimes very trivial causes of our integrity oversights and mistakes, and so on. He has done his best to reflect all such new learning and improved asset integrity management insight in this book.
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Hazzard-Donald, Katrina. Crisis at the Crossroads. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252037290.003.0005.
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This chapter charts the transformation of Hoodoo as it moves from the plantation environment and encounters both snake-oil Hoodoo and the spiritual marketplace of the urban environment. Prior to emancipation, the larger plantation slave communities, as well as areas of high black concentration, had functioned as culturally potent repositories and cultural germination sites where, partially due to demographics, the culture-making process was intensified. The period following emancipation was transformative in every sense for African Americans and black belt traditional Hoodoo. In particular, Hoodoo would find itself approaching a critical crossroads in its identity and existence from emancipation to World War II. This chapter examines how the black belt Hoodoo complex was modified and transformed under the influence of both internal and external factors from Reconstruction to World War II. It shows that conjure after emancipation would continue to figure significantly in black consciousness of self, family, and community under the new freedom.
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Monitoring Corrosion in Oil and Gas Production with Iron Counts. AMPP, 2023. https://doi.org/10.5006/nace_sp0192-2023.
Texte intégralRésumé :
Scope This standard practice describes the use of iron counts as a corrosion-monitoring method and some common problems encountered when using this method. This standard is a guide for those designing corrosion-monitoring programs as well as those carrying out the programs in the field. Rationale During the review of the previous revision of this document, it was observed that the document lacked guidelines regarding the conversion of iron count number to corrosion rate. The corrosion rate number provides easy data interpretation and possible actions. The end user will be able to establish key performance indicators using the corrosion rate thus established for the system based on the trends. Other changes in this revision include:
Chapitres de livres sur le sujet "Oil Encounters"
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Torbat, Akbar E. « Iran Encounters the West ». Dans Politics of Oil and Nuclear Technology in Iran, 23–40. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33766-7_2.
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Forseth, Ulla. « The Power of Dialogue : The Regulator–Regulatee Relationship in the Norwegian Oil and Gas Industry ». Dans The Regulator–Regulatee Relationship in High-Hazard Industry Sectors, 55–62. Cham : Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-49570-0_6.
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AbstractThe aim of this chapter is to investigate the regulator–regulatee relationship and dialogue as a policy instrument in the Norwegian oil and gas industry. Dialogue is used as a lens to shed light on power relations in encounters between regulator and regulatees. The empirical part draws on qualitative research and multiple data sets. Dialogue is the preferred supervisory strategy and is embedded in symmetrical and asymmetrical power relations. The dialogue is formalised, ritualised, and restricted during regulator–regulatee encounters, whereas regulatees call for more informal discussions. The use of dialogue as a policy instrument has contributed to leeway for creativity in operations, learning, feedback, shared understanding and, according to the regulator, innovation and solutions beyond minimum requirements of laws and regulation.
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Conconi, Alejandra. « Avoiding Encounters : An Ethnographic Analysis of Sino-Argentine Business Relationships in Argentina’s Oil Industry ». Dans China in Argentina, 121–41. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92422-5_6.
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Pikner, Tarmo. « Energy Transition as Space Making : Rescaling of Accelerated Transformations in the Context of Estonia ». Dans Rescaling Sustainability Transitions, 71–94. Cham : Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-69918-4_4.
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AbstractEnergy can be seen as an important mediator of relations between humans and natural environments. This chapter focuses on the spatialities of shifting oil shale-dependent energy regimes that bring together territorialisation dynamics and anticipated landscapes in rescaling processes. This study analyses the encounters and narratives within the two main spheres of energy transition in Estonia—negotiating fossil fuel dependencies and territorialising offshore wind resources. By examining these carbon-lowering spheres together, we connect rescaling processes simultaneously to legacies and to emergent characters of energy landscapes. The shift towards more space-dependent energy production is discussed through three sets of relational processes: politicisation of the existing regime; ways of engagements and knowledge exchange; hybridisation along co-constituting of human and non-human agencies.
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Munos, Delphine. « Of Systemic Violence, Addressivity, and “the Oil Encounter” ». Dans Narrating Violence in the Postcolonial World, 186–200. New York : Routledge, 2021. http://dx.doi.org/10.4324/9781003110231-14.
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Dawuda, Ismael, et Sanjay Srinivasan. « Geometric and Geostatistical Modeling of Point Bars ». Dans Springer Proceedings in Earth and Environmental Sciences, 63–79. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-19845-8_6.
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AbstractPoint bar reservoir geology is frequently encountered in oil and gas developments worldwide. Furthermore, point bar geology is encountered in many sites being considered for large scale CO2 injection for sequestration. A comprehensive modeling method that adequately preserves point bar internal architecture and its associated heterogeneities is still not available. Traditional geostatistical methods cannot adequately capture the curvilinear architecture of point bars. Even geostatistical simulation techniques that can be constrained to multiple point statistics cannot capture the architecture of the point bars because they use regular grids to represent the heterogeneity. If heterogeneities like the thinly distributed shale drapes within the point bar are represented using an extremely fine mesh, the computational cost for performing flow modeling escalates steeply. This paper proposes a modeling method that preserves the point bar internal architecture and heterogeneities, without these limitations. The modeling method incorporates a gridding scheme that adequately captures the point bar architecture and heterogeneities, without huge computational costs.
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Funk, Leberecht. « "Keep Off the 'Bad Things,' Uncle!" ». Dans Living with Monsters, 97–112. Earth, Milky Way : punctum books, 2023. http://dx.doi.org/10.53288/0361.1.07.
Texte intégralRésumé :
How is it like to live with monsters on Lanyu island, Taiwan? In the course of one year, the author has a series of exchanges with a 9-year-old Indigenous Tao girl. She gives him advice how to deal with “bad things,” which is a euphemism for the local Anito monsters who delight in stealing human souls. The monsters, which are never actually encountered, are constantly lurking in the background. Their presence can be perceived by bad smells, unjustified angry reactions, intense negative emotionality, or by viewing a beautiful butterfly or hearing the call of an owl. The girl needs to be constantly aware about the changes in the environment. She has to avoid certain places (such as the cemetery) and stays at home when “bad things” occur (for example, a death in the village). She can never let herself go, as the Anito take advantage of any kind of weakness. For example, when she is in pain, she will not cry out loud. Occasionally she mentions other people from her kinship network, like her grandmother and her elder brother, and explains how they cope with the monsters, or, in the case of her grandfather, temporarily become monsters by means of possession.
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Robins, Jonathan E. « Early Encounters and Exchanges ». Dans Oil Palm, 25–41. University of North Carolina Press, 2021. http://dx.doi.org/10.5149/northcarolina/9781469662893.003.0003.
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This chapter examines the movement of palm oil and oil palms outside of Africa beginning in the fifteenth century. European botanists struggled to describe and classify oil palms, leading to misleading accounts. Palm wine and palm oil both played important roles in the transatlantic slave trade, and oil palms crossed the Atlantic alongside African captives, taking root in plantation colonies like Barbados. Yet only in Brazil did oil palms thrive, reflecting both African adaptations to America and the survival of African traditions. The chapter concludes by showing how palm oil became a popular medicine in Europe, drawing on observations of medicinal practices in Africa and on American plantations.
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« 3. King Tut, Commodity Nationalism, And The Politics Of Oil, 1973-1979 ». Dans Epic Encounters, 125–54. University of California Press, 2019. http://dx.doi.org/10.1525/9780520932012-007.
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Ali, Mohammed. « Shifting Paradigms in the Rapidly Developing Global Digital Ecosystem ». Dans Digital Entrepreneurship and Co-Creating Value Through Digital Encounters, 145–66. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7416-7.ch007.
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Despite growing scholarly interest in the impact of the digital economy on economic recovery in the midst of the current global crisis and regional development situations, research on the effects of the global crisis on developing digital economies in the Gulf Cooperation Council Region (GCC) and the resulting future uncertainty is limited. Thus, this chapter examines the developing GCC countries' digital infrastructure, openness, innovation environment, competitiveness, and digital divide to determine how the digital economy affects economic growth during a global crisis. This chapter demonstrates how the GCC economies are still developing and attempting to diversify away from oil, with the digital economy serving as a major driving force in achieving the region's goals. Furthermore, while the recent pandemic has harmed GCC digital industries, it has also increased demand, creating an excellent opportunity to develop the region's digital infrastructure to compete with developed digital economies. Policy implications have been proposed as a potential impact mechanism.
Actes de conférences sur le sujet "Oil Encounters"
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Prasad, Asim. « Risk and Challenges in Speedy Commencement of Natural Gas Supplies for Last Mile Consumer Connectivity Projects ». Dans ASME 2013 India Oil and Gas Pipeline Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/iogpc2013-9843.
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Over the years the natural gas pipeline industry in India has witnessed significant growth in all three segments namely domestic gas production / gas import, development of pipeline infrastructure for gas transmission and actual usage by end consumers. This is manifested by the fact that in the last five years the gas consumption in the country has increased by over 50 %. Natural gas is the fuel of choice due to controllability and flexibility in use, low emission of CO2 and other pollutants, efficiency in transportation and distribution. Due to this, natural gas the cleanest fossil fuel is emerging as the most sought for fuel across the globe. Last Mile Consumer Connectivity are small pipeline projects that are executed to commence natural gas supplies to prospective customers who come forward to sign firm contractual agreement for commencing gas supplies. These projects are extremely important as the connectivity’s leading to start of commercial supplies by different segments of customers for diversified application generates revenue for the company apart from intensifying economic activities for wealth creation of shareholders. It is experienced that such projects encounters risks and challenges both in the internal and external environment which are either known-known, known-unknown or unknown-unknown. This retards the project progress leading to resource idling. The risks are in different areas related to gas marketing, project execution, operations, economic and regulatory risk. Such risks ultimately affect the company’s net profit, due to delay in commencement of commercial supplies. This in turn retards economic development and wealth creation of shareholders. Efforts has been made to draw and consolidate examples from the experience gained in execution of these projects with respect to the types of risks and challenges being encountered under different phases of value chain, situations, along with measures taken to counter the same. Even though such situations are encountered tactfully leading to successful commencement of gas supplies, the question still remains as to what are the best practices for speedy execution for these projects. The aim of this paper is to provide vivid description and insights into the different types of risks and challenges encountered under the Last Mile Connectivity Value Chain and the best practices adapted for speedy commencement of gas supplies to customers.
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Sajjad, Farasdaq Muchibbus, Steven Chandra, Patrick Ivan, Wingky Suganda, Yudi Budiansah et Alvin Derry Wirawan. « The Effect of Compositional Gradient in Field Development ». Dans SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205801-ms.
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Abstract The existence of fluid’s compositional gradient in a reservoir drives convective flow which brings significant impacts to the operations, e.g., in formulation of injected fluid for well stimulation and enhanced oil Recovery (EOR). However, fluid compositional gradient is not always included in modeling reservoir performance due to PVT sampling limitation and simulation constraint. This work aims to show the significance of compositional convection in oil/gas reservoir and provides our experiences in dealing with this issue in Indonesian’s fields. PHE ONWJ as one of the most prolific producers of oil and gas in Indonesia currently operates an offshore block that has been producing for almost 40 years. Operating in a relatively mature well, PHE ONWJ often encounters significant fluid property change namely oil viscosity and specific gravity that changes overtime as depletion process occur. Data from X field, operated by PHE ONWJ, shows that compositional convection impacts workover and tertiary operations, by deviating from simulation results. We present the evidence of compositional convection using mechanistic models. We firstly adopt field data for setting the initial composition stratification. The stratification is identified through DST or fluid sampling. We secondly perform similarity simulation to analyze the effect of compositional gradient towards oil production. Similarity simulation is performed in the simplified domain for providing generalized solution. This solution is then scaled for the real domain. Finally, we show our approach to encounter the problems. Based on the similarity study inspired by the case of X Field, it shows that the compositional stratification affects geochemistry and near-wellbore flow behavior. The compositional convection develops multiple fluid properties at different depth, which create cross flow among layers. It also causes scale deposition in near wellbore which reduces the permeability and alters rock-fluid interactions, such as wettability and relative permeability. The alteration of near-wellbore geochemistry creates severe flow assurance issues in the wellbore. The mixing of multiple fluids from different layers cause paraffin and scale deposition. In some fields, the mixing triggers severe corrosions which could impact on wellbore integrity. The compositional stratification forces us to develop multiple treatments for different layers in single wellbore. Since the fluid’s properties are different for each layer, the compatibility between injected fluid and reservoir fluids varies.
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Albattat, Rami, et Hussein Hoteit. « Novel Analytical Solution and Type-Curves for Lost-Circulation Diagnostics of Drilling Mud in Fractured Formation ». Dans SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204619-ms.
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Abstract Loss of circulation is a major problem that often causes interruption to drilling operations, and reduction in efficiency. This problem often occurs when the drilled wellbore encounters a high permeable formation such as faults or fractures, leading to total or partial leakage of the drilling fluids. In this work, we present a novel semi-analytical solution and type-curves that offer a quick and accurate diagnostic tool to assess the lost-circulation of Herschel-Bulkley fluids in fractured media. Based on the pressure and mud loss trends, the tool can estimate the effective fracture conductivity, the cumulative mud-loss volume, and the leakage period. The behavior of lost-circulation into fractured formation can be assessed using analytical methods that can be deployed to perform flow diagnostics, such as the rate of fluid leakage and the associated fracture hydraulic properties. In this study, we develop a new semi-analytical method to quantify the leakage of drilling fluid flow into fractures. The developed model is applicable for non-Newtonian fluids with exhibiting yield-power-law, including shear thickening and thinning, and Bingham plastic fluids. We propose new dimensionless groups and generate novel dual type-curves, which circumvent the non-uniqueness issues in trend matching of type-curves. We use numerical simulations based on finite-elements to verify the accuracy of the proposed solution, and compare it with existing analytical solutions from the literature. Based on the proposed semi-analytical solution, we propose new dimensionless groups and generate type-curves to describe the dimensionless mud-loss volume versus the dimensionless time. To address the non-uniqueness matching issue, we propose, for the first time, complimentary derivative-based type-curves. Both type-curve sets are used in a dual trend matching, which significantly reduced the non-uniqueness issue that is typically encountered in type-curves. We use data for lost circulation from a field case to show the applicability of the proposed method. We apply the semi-analytical solver, combined with Monte-Carlo simulations, to perform a sensitivity study to assess the uncertainty of various fluid and subsurface parameters, including the hydraulic property of the fracture and the probabilistic prediction of the rate of mud leakage into the formation. The proposed approach is based on a novel semi-analytical solution and type-curves to model the flow behavior of Herschel-Bulkley fluids into fractured reservoirs, which can be used as a quick diagnostic tool to evaluate lost-circulation in drilling operations.
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Mat Khair, Nusheena, M. Farid Zaizakrani, Nur Afrina Inani Zul Azhar, Fatin Liyana A Halim, Sulaiman Sidek, Nik Zarina Suryana Nik Khansani, Shar Kawi Hazim Shafie, Mohamad Mustaqim Mokhlis, Nurdini Alya Hazali et M. Nabil Saifuddin. « Automated Production Enhancement Candidates Screening Powered by Machine Learning Unlocks Untapped Potential in Matured Oil Fields – A Case Study ». Dans SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/215244-ms.
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Abstract Field A, located offshore East Malaysia, has been a productive conventional oil field for more than three decades. Being a mature or brown oil field, it encounters several surface and subsurface including sand production, increasing water-cut and reservoir pressure depletion. Consequently, field production declines over the years. These issues have compelled the team to pursue for options to optimize the existing Field A's producing and idle wells in an effort to slow the production decline rates and keep up with field deliverability. Failure to recognize and manage well behaviors may cause producers unable to meet production targets and experience other serious problems, such as well integrity. Hence, Production Enhancement Candidate Generation and Screening (PECGS), a Machine Learning (ML) tool, have been utilized in Field A to identify potential candidates for Production Enhancement (PE) from both active and inactive wells. The system has been able to establish a workflow that is capable of guiding and navigating the engineer through the process of identifying candidates for PE, such as zone changes (ZOC), Behind Casing Opportunities (BCO), add perforations and well stimulations that can be tracked all the way up to the execution stage. This paper presents the processes of identifying production enhancement opportunities, as well as the methodology utilizes to identify underperforming candidates and analyze well integrity issues. It describes how data science and engineering analyses are integrated, and stresses how collective insights are gained from quantitative and qualitative outcomes, such as production increases, cost savings, operational efficiencies, and overall impact on field performance. The implementation of well-engineered workflows has significantly aided and enabled users in identifying low-hanging fruit opportunities. This solution has created an efficient working environment, particularly for the team in Field A, empowering them to identify and capitalize on PE and Idle Well Reactivation (IWR) potential opportunities. By emphasizing the overall process flow from identification to results, this paper aims to provide a comprehensive understanding of the PE journey in Field A, showcasing the effectiveness of the approach and its contribution to the field's performance improvement.
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Wen, Xin, Yang Lin, Man Li, Jing Gao et ChuangFeng An. « Adopting Hybrid Cloud Architecture to Enhance Bohai Digital Oilfield ». Dans International Petroleum Technology Conference. IPTC, 2025. https://doi.org/10.2523/iptc-24714-ea.
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Abstract Since 2019, with the rise of cloud computing, traditional oil field production management systems have progressively shifted to the cloud. However, this transition encounters various hurdles, including rigid structure, isolated data, scalability issues, and obstacles in technology adoption. To address these challenges, Bohai oilfield has successfully built an intelligent oil field management system using hybrid cloud architecture. This system not only ensures flexibility and expandability but also establishes mechanisms for data integration and sharing, enabling flexible scaling, ensuring compatibility across diverse platforms and devices. Additionally, the intelligent oil field management system adopts a multi-tenant architecture, allowing a single application to serve multiple users or organizations, breaking down data silos, and improving resource utilization. This paper provides a detailed introduction to the construction of the intelligent oil field platform based on hybrid cloud architecture, including the characteristics of this architecture and its advantages in software development, the design and implementation process of the intelligent oil field platform, and elucidates the interaction mechanism among modules like data collection, real-time monitoring, and intelligent analysis. Furthermore, it describes the application advantages of hybrid cloud architecture in the intelligent oil field platform and validates the effectiveness and feasibility of this solution through some case studies of our intelligent oil field management system, demonstrating its potential in improving oil field production management efficiency and reducing costs. This research not only provides practical references and guidance for the digital transformation of the oil field industry but also offers valuable experience and suggestions for the construction of intelligent oil field platforms.
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Baraka-Lokmane, S. « Blockage of a Waxy Gelled Crude Oil in Pipeline : Prediction of the Restart Pressure ». Dans SPE International Conference on Oilfield Chemistry. SPE, 2025. https://doi.org/10.2118/224237-ms.
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Abstract The paper concerns a waxy crude oil from a North Sea field, where the Wax Appearance Temperature (WAT) and Pour Point are both high, they are equal respectively to 34°C and 30°C. A risk of wax deposition exists if operation temperatures are below the WAT. There is also a risk of formation of gel after shutdown in case of cool down to seabed conditions. Production of waxy fluids often encounters difficulties when restarting a pipeline following a shut-in period during which the fluid has developed significant wax structure and exhibits very high resistance to flow. Predicting the conditions necessary to restart flow in gelled lines has long been recognized as a problem. Discrepancies in gel-strength determination have demonstrated among different laboratory techniques. Laboratory measurements and laboratory model pipelines tests give systematically overestimated restart pressures. The limitation of current practice commonly leads to the adoption of wide margins of safety that engender considerable increase in both CAPEX and OPEX. This paper discusses the yield stress measurements performed with three types of test equipment: rheometer, two sizes of coils and two sizes of flow loops, using both dead crude and gas pressurized crude. Restart pressures evaluated by rheometer data were about 2 to 3 times greater than restart pressures measured in a model pipeline. Classical rheological approach seems to predict very high restart pressures. The differences in the results obtained from different equipment are explained by parameters such as the pressure propagation in pipeline; these parameters are not considered in the laboratory tests. The shrinkage flow is also discussed in the paper. The flow assurance strategy for this challenging crude oil is also presented.
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Ramos, R., H. Li, I. Olson, L. Diagne, D. Gutierrez, R. Mower, J. Earwood, M. Mendoza et O. Garcia-Pineda. « Design, Fabrication, Simulation, and Initial Testing of an Unmanned Surface Vehicle for Oil Spill Sampling ». Dans Offshore Technology Conference. OTC, 2024. http://dx.doi.org/10.4043/35315-ms.
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Abstract Detection of oil spills with aerial or space-born remote sensing resources has been deeply studied and developed over recent years. However, all these technologies still rely on in-situ verification with direct monitoring and sampling for validation. This paper presents the design, fabrication, simulation, and testing of an unmanned surface vehicle (USV), specifically designed for hydrodynamic efficiency and effective oil spill sampling. The USV's design, featuring a customized platform for the oil sampling mechanism, underwent an extensive simulation process using computational fluid dynamics (CFD) to validate its stability and analyze its impact on water flow dynamics. The design and fabrication process involved hull construction, integration of the control and power systems, and testing in a laboratory environment. The CFD analysis and testing revealed exceptional stability in the USV, showing only minimal rocking and pitching, which translates to consistent speed and precise navigation for the USV during operation. Using CFD for the design analysis allowed for the optimization of water flow dynamics between the two hulls, resulting in reduced drag and enhanced maneuverability for the USV. Turbulent flow patterns were observed at higher speeds, which notably provided valuable insights into the USV's hydrodynamic behavior and its possible interaction with any unforeseen marine conditions, such as encounters with marine life or debris. The key findings demonstrate the USV's potential to revolutionize environmental response efforts, especially in the context of oil spill disasters in remote areas. The accuracy of the CFD simulations was pivotal in anticipating the USV's performance in various marine conditions, which demonstrates the importance of collaboration between theoretical models and practical applications. This paper introduces an innovative integration between autonomous technology and environmental responsiveness, which showcases the possibilities of advancements in the field of autonomous maritime solutions. The involvement of this research extends beyond its immediate scope and offers a new prototype for monitoring and protecting marine environments. This advancement significantly contributes to the broader discussion for safer, more sustainable offshore exploration and environmental management.
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R, Shamini, Aniket Sachdeva, Joji Handa, Carlos Sena et Luigi Marson. « Lubrication Effectiveness Determination for Wet-Sump Transmissions using Multiphase Computational Fluid Dynamics Modeling ». Dans Symposium on International Automotive Technology. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2024. http://dx.doi.org/10.4271/2024-26-0298.
Texte intégralRésumé :
<div class="section abstract"><div class="htmlview paragraph">Wet-sump transmissions are widely used in heavy duty and medium duty vehicles. As these transmissions do not have a dedicated forced lubrication system, it is important that the gear train, shafts, and enclosure are designed appropriately so that enough oil splashes to critical locations to ensure sufficient lubrication. The lubrication effectiveness of such transmissions can be studied through detailed tests or numerical simulations.</div><div class="htmlview paragraph">Often, the vehicle, and therefore the transmission, encounters some severe operating conditions, such as climbing on an incline, driving downhill, etc. Studying these conditions through tests is an expensive process and this imposes the need for an analysis first approach. In this paper, the 3D multiphase Volume of Fluid (VOF) method is used to examine two such extreme cases: an 8-degree tilted installation of transmission in a vehicle, and an inclined condition of transmission during a 10-degree uphill climb. By studying the oil volume fraction on gears and splash patterns, inertia and reverse gears in the first case and headset gear in the second case are found susceptible to oil starvation. The effectiveness of a simple and easily deployable solution of increasing the transmission oil level is then assessed. Results show that increasing the oil level improves the lubrication effectiveness in the first case, but only slightly in the second case. However, both cases show higher churning losses. This calls for a trade-off between lubrication effectiveness and power/torque consumption. Present work demonstrates how the developed methodology can help identify oil-starving locations and evaluate potential solutions for extreme cases, eliminating the need for testing multiple prototypes before arriving at a suitable solution.</div></div>
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Suharto, K. S. « Structural Health Monitoring of An Offshore Platform Trend of Corrosion and Marine Growth With Predictive Maintenance ». Dans Digital Technical Conference. Indonesian Petroleum Association, 2020. http://dx.doi.org/10.29118/ipa20-se-424.
Texte intégralRésumé :
Nowadays, there are a lot of oil and gas exploration activities all over the world, especially offshore. Oil and gas production itself has many supporting factors in the production process, of which one of them is the offshore platform. Over time, the offshore platform will experience a degradation in strength from the initial design, therefore offshore platforms need to carry out appropriate inspection, maintenance and repair (IMR) programs so that the offshore platform does not reach critical conditions and disrupt the oil and gas production process, resulting in significant losses and not achieving the planned production rates. The offshore platform design is a combination of steel structure and other materials, methods, and loads that are initially worked at the port, such as wave loads, currents, and several other parameters such as gravity, wind, and earthquake. Most of the offshore platforms that currently exist (worldwide) were made in the period of oil investment that developed between 1970 and 1980, thus, the platform's age has now reached 40 to 50 years (El-Reedy, 2012). This research data based on a platform in the Makassar strait between the islands of Kalimantan and Sulawesi. The method used in this research is the platform's design, data observation, data analysis, data processing, and statistical multilinear regression analysis. This research is investigating the degradation trend of the offshore platform and predicting the future of potential failure because of corrosion and marine growth. After the platform encounters degradation over several years, it will decrease the service life before the degradation starts to matter. The results show after data processing that, offshore platforms encounter degradation over several years, and it is presented by a graph containing the condition trend over a multi-year condition because of corrosion and marine growth, and its effect towards unity check (UC) that define structure health. Unity check value produced from allowable stress versus capacity. In this research, structural health monitoring is predicting the potential failure of the platform towards its UC effect of corrosion and marine growth, with a max of the UC value is 0.8 because its a critical value. The failure of the structure possibly would have an affect on the cost-effectiveness. Therefore it is necessary to predict when the structure will fail so that the costs used are effective. Unfortunately, there is no core data for the environmental changes every year at the platform, so the model's equation does not include environmental conditions.
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Padmanabhan, B., et R. C. Ertekin. « On the Interaction of Waves With Intake/Discharge Flows Originating From a Freely-Floating Body ». Dans ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28531.
Texte intégralRésumé :
This work is motivated by the many instances of intake/discharge flows from openings on floating or submerged ocean vessels and structures that may affect the wave field around them. Damaged vessels may release oil, or water may enter these vessels through openings. In oil skimming operations, for example, a very thin layer of oil must be skimmed off a large surface area, and therefore, oil skimming vessels require large intakes. Floating OTEC plants also require large intake and discharge volumes to sustain their operations. A linear theory is developed to obtain the motions of a 2-dimensional, freely floating body (from which steady intake/discharge flows originate) that encounters incoming waves. The boundary-value problem is formulated within the assumptions of linear potential theory by decomposing the total potential into its oscillatory and steady components. The steady potential is further decomposed into the double-model and perturbation potentials. The time-harmonic potential is coupled with the steady potential through the free-surface condition. The potentials are obtained by use of the quadratic boundary-element method based on the Rankine source. The effect of the steady intake/discharge flows on the diffraction loads, hydrodynamic force coefficients, as well as the motions of a 2-dimensional prismatic body floating on the free surface are presented. It is shown that the exciting wave forces and the hydrodynamic coefficients other than the damping coefficients are not appreciably affected by the intake/discharge flows of low Froude number for a 100MW floating OTEC plant.
Rapports d'organisations sur le sujet "Oil Encounters"
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Horning, Ned, P. McPhearson et Osman Wallace. Applications Of Remote Sensing To Biodiversity Conservation. American Museum of Natural History, 2004. http://dx.doi.org/10.5531/cbc.ncep.0181.
Texte intégralRésumé :
Remote sensing can be used to address a plethora of biodiversity conservation issues and is a valuable tool for scientists, conservation practitioners, land managers, and many others. Aquatic, atmospheric and terrestrial systems are all amenable to study with remote sensing techniques. However, remote sensing is not a panacea for all problems conservation biologists may encounter, and there are limitations to the technology. This module is primarily designed to introduce the applications of remote sensing to typical problems biodiversity conservation practitioners commonly encounter (for more basics, first see the module Introduction to Remote Sensing). An attempt has been made to utilize case studies on multiple topics to give a more detailed examination of the protocols, tools, and skills needed to pragmatically address problems. Notable examples include fire detection and monitoring, habitat assessment, landscape change detection, and monitoring oil spills.
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Smalley, Vinyard et Evans. L51511 Deactivating Power Cylinders under Reduced Load on Two-Cycle Engines. Chantilly, Virginia : Pipeline Research Council International, Inc. (PRCI), septembre 1986. http://dx.doi.org/10.55274/r0010517.
Texte intégralRésumé :
Investigates potential and procedures for selective deactivation of one or more power cylinders in two-cycle engines under reduced load to effect fuel savings while avoiding possible engine derangement. The objectives were to identify any major problems with cylinder deactivation, to quantify likely benefits, to determine potential increases in load or stress, and to generate guidelines from the project results. This study showed that economic benefits are possible with the careful use of cylinder deactivation; however, several operational problems were encountered, such as spark plug fouling, oil pumping, increased noise due to a mismatched muffler cutoff frequency, and increased wear in the deactivated cylinders.
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Rosenfeld, Hart et Zulfiqar. L51994 Acceptance Criteria for Mild Ripples in Pipeline Field Bends. Chantilly, Virginia : Pipeline Research Council International, Inc. (PRCI), septembre 2003. http://dx.doi.org/10.55274/r0010395.
Texte intégralRésumé :
Field bends in large diameter pipe are routinely used in the construction of oil and gas pipelines. Mild ripples along the intrados are often unavoidable where such bends have a high D/t or high yield strength. Present regulations and industry standards differ in their treatment of mild ripples, ranging from silence to prohibition, depending upon interpretation. Consequently, the application of acceptance standards for such features is inconsistent, leading to variable standards of inspection and probable scrapping of otherwise sound bends. Finite element analysis (FEA) was used to estimate the effect of ripple magnitude and spacing on stresses due to pressure and bending. Stress concentration factors derived from the models were used with a suitable fatigue damage rule to estimate the effect of ripple parameters on service life. Results were benchmarked against the available test data. The results indicate that (1) mild or shallow ripples up to 2 percent of the pipe diameter in crest-to-trough dimension would not be expected to be harmful in gas transmission pipelines operating under conditions normally encountered in the gas transportation industry; (2) mild or shallow ripples up to 1 percent of the pipe diameter in crest-to-trough dimension would not be expected to be harmful in hazardous liquid transportation pipelines operating under conditions normally encountered in the liquid transportation industry; (3) the presence of ripples could eventually be harmful to long-term integrity in a severe cyclic loading (pressure, thermal expansion, flow-induced vibration) environment, or where soil movement could take place. Recommendations are made for ASME Code criteria specifically permitting mild ripples within stated limits.
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Koven, William, Gordon Grau, Benny Ron et Tetsuya Hirano. Improving fry quality, survival and growth in commercially farmed fish by dietary stimulation of thyroid hormone production in premetamorphosing larvae. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7695856.bard.
Texte intégralRésumé :
There is a direct correlation between successful metamorphosis from larvae to post-larvae and the quality of the resultant juveniles or fry. Juvenile quality, in turn, is a major factor influencing fish production level and market price. However, following the profound morphological and physiological changes occurring during metamorphosis, the emerging juveniles in some species characteristically demonstrate heterotrophic growth, poor pigmentation, cannibalism and generally poor survival. The white grouper (Epinephelus aeneus) in Israel and the Pacific threadfin (Polydactylussexfilis) in Hawaii are two promising candidates for mariculture that have high market value but a natural fishery that has sharply declined in recent years. Unfortunately, their potential for culture is severely hampered by variable metamorphic success limiting their production. The main objective was to compare the efficacy and economic viability of dietary or environmental iodine on metamorphic success and juvenile quality in the white grouper and the pink snapper which would lead to improved commercial rearing protocols and increased production of these species both in Israel and the US. The Hawaii Institute of Marine Biology encountered problems with the availability of pink snapper brood stock and larvae and changed to Pacific threadfin or moi which is rapidly becoming a premier aquaculture species in Hawaii and throughout the Indo-Pacific. The white grouper brood stock at the National Center for Mariculture was lost as a result of a viral outbreak following the sudden breakdown of the ozone purification system. In addition, the NCM suffered a devastating fire in the fall of 2007 that completely destroyed the hatchery and laboratory facilities although the BARD project samples were saved. Nevertheless, by studying alternate species a number of valuable findings and conclusions that can contribute to improved metamorphosis in commercially valuable marine species resulted from this collaborative effort. The Israeli group found that exposing white grouper larvae to external TH levels synchronized and increased the rate of metamorphosis. This suggested that sub-optimal synthesis of TH may be a major factor causing size heterogeneity in the larval population and high mortality through cannibalism by their larger more metamorphosed cohorts. Two protocols were developed to enrich the larvae with higher levels of the TH precursor, iodine; feeding iodine enriched Artemia or increasing the level of seawater iodine the larvae are exposed to. Results of accumulated iodine in gilthead seabream larvae indicated that the absorption of iodine from the water is markedly more efficient than feeding iodine enriched Artemia nauplii. Samples for TH, which will be analyzed shortly, will be able to determine if another dietary factor is lacking to effectively utilize surplus tissue iodine for TH synthesis. Moreover, these samples will also clarify which approach to enriching larvae with iodine, through the live food or exposure to iodine enriched seawater is the most efficient and cost effective. The American group found that moi larvae reared in ocean water, which possessed substantially higher iodine levels than those found in seawater well water, grew significantly larger, and showed increased survival compared with well water reared larvae. Larvae reared in ocean water also progressed more rapidly through developmental stages than those in low-iodine well seawater. In collaboration with Israeli counterparts, a highly specific and precise radioimmunoassay procedure for thyroid hormones and cortisol was developed. Taken altogether, the combined Hawaiian and Israeli collaborative research suggests that for teleost species of commercial value, adequate levels of environmental iodine are more determinate in metamorphosis than iodine levels in the live zooplankton food provided to the larvae. Insuring sufficiently high enough iodine in the ambient seawater offers a much more economical solution to improved metamorphosis than enriching the live food with costly liposomes incorporating iodine rich oils.