Academic literature on the topic 'Reservoir surveillance'
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Journal articles on the topic "Reservoir surveillance"
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Badri, Mohammed, Ali Yousif, and Maged Mabrook. "Multiscale reservoir surveillance and monitoring." Leading Edge 40, no. 5 (May 2021): 383–84. http://dx.doi.org/10.1190/tle40050383.1.
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Geoscientists and reservoir engineers are challenged to integrate data of different scales to better understand fluid movement in oil reservoirs. Different technologies are capable of imaging fluid movement in the reservoir at different scales. Two-dimensional fluid imaging has been achieved recently through crosswell and surface-to-borehole electromagnetic (EM) measurements. Three-dimensional fluid movement imaging has shown potential by using surface seismic data volumes. The Multiscale Reservoir Surveillance and Monitoring Workshop, held virtually 7–9 December 2020, attempted to address the challenge of how to integrate these measurements obtained at different scales into a workflow to improve the understanding of fluid flow, which is critical for sweep efficiency and recovery.
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Lowther, S. A., T. Mir, M. K. Bile, and R. Abdul Hafiz. "Characteristics of districts in Pakistan with persistent transmission of wild poliovirus, 2000-2001." Eastern Mediterranean Health Journal 10, no. 4-5 (September 13, 2004): 582–90. http://dx.doi.org/10.26719/2004.10.4-5.582.
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We sought to identify factors associated with being a reservoir district for wild poliovirus in Pakistan. Differences between reservoir and non-reservoir districts were identified using acute flaccid paralysis surveillance data, population census statistics and data from a survey of district health officials [DHOs]. Of the 11 poliovirus reservoir districts identified, population density was significantly higher [median 550 persons/km2] than the non-reservoirs [median 175 persons/km2]. DHOs from reservoir districts more often reported that planning was affected by refugees and they had more frequent DHO transfers compared with non-reservoir districts. Multivariate analysis confirmed that reservoirs more often had high population density and frequent DHO transfers. Assessment of district-level and management characteristics can supplement surveillance methods to further improve health programmes
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Langaas, Kare, Knut I. Nilsen, and Svein M. Skjaeveland. "Tidal Pressure Response and Surveillance of Water Encroachment." SPE Reservoir Evaluation & Engineering 9, no. 04 (August 1, 2006): 335–44. http://dx.doi.org/10.2118/95763-pa.
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Summary A review of the tidal response in petroleum reservoirs is given. Tidal response is caused by periodic changes in overburden stress induced by the ocean tide; the "tidal efficiency factor" is derived by two different approaches and is in line with a recent well test in the Ormen Lange gas field. For small geomechanical pertubations like the tidal effect, we show that a simplified coupling of geomechanics and fluid flow is possible. The coupling is easy to implement in a standard reservoir simulator by introducing a porosity varying in phase with the tide. Simulations show very good agreement with the theory. The observation of the tidal response in petroleum reservoirs is an independent information provider [i.e., it provides information in addition to the (average) pressure and its derivative from a well test]. The implementation of the tidal effect in a normal reservoir simulator gives us the opportunity to study complex multiphase situations and to evaluate the potential of the tidal response as a reservoir-surveillance method. The case studies presented here focus on the possibility of observing water in the near-well region of a gas well. Introduction The main objective of this work is to investigate whether the tidal pressure response in petroleum reservoirs can be used for reservoir surveillance, in particular to detect saturation changes in the near-well region (e.g., to detect water encroachment toward a gas well). The literature seems sparse in this area. Also, our approach of simplified coupling of geomechanics and fluid flow for small geomechanical effects, and the possibility to implement this in a normal reservoir simulator, has not (to our knowledge) been discussed in the literature. Several authors have derived a tidal efficiency factor, but a review and comparison study seems to be missing.
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Miller, Patrick. "Technology Focus: Reservoir Surveillance (September 2022)." Journal of Petroleum Technology 74, no. 09 (September 1, 2022): 52–53. http://dx.doi.org/10.2118/0922-0052-jpt.
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When it comes to reservoir surveillance, subsurface professionals have a broad array of tools and techniques to understand what is happening in the reservoir. To ensure valuable information is gathered with surveillance, it’s important to first ask “what problem are we trying to solve?” Depending on the problem’s definition and scale, the appropriate surveillance technology will change significantly. Zooming far out, particularly if little data is available for a reservoir, we may be interested in tools and techniques to validate and refine the geological concept for a basin, along with the most likely deposition patterns for sediments. Zooming in to the level of interactions between wells, we need to use a different toolbox that often includes finer-resolution geoscience mapping and engineering methods such as analyzing production, pressure, and fluid-property trends from individual wells. But what’s really exciting is that many new approaches are being developed to understand reservoir behavior and well performance at incredibly high resolution—at the fracture scale or even the pore scale. In this feature, we will examine surveillance technologies that can be applied at the broad scale, midscale, and fine scale. The papers highlighted in this month’s feature apply forward stratigraphic modeling to improve geological models, classical reservoir engineering techniques to understand interwell connectivity in order to optimize waterflooding operations, and exciting new fiber-optic technology to characterize the performance of individual hydraulic fractures in unconventionals. I hope these articles help you to think about “framing” the problem you are trying to solve, like a photographer carefully selecting the right camera settings and lens for a specific shot, in order to select the right tools and methods to add value through surveillance. Recommended additional reading at OnePetro: www.onepetro.org. SPE 202319 - Utilizing Surface Microseismic Monitoring To Improve Understanding of Natural Fractures in Sichuan Shale Gas Play by Cui Jing, Sichuan Changning Natural Gas Development Company, et al. SPE 202837 - Modified Technique To Model Volatile Oil Reservoirs: Implications for Modern Software Programs by Mohamed Ibrahim, Shell Egypt, et al. SPE 201543 - Production Optimization Using a 24/7 Distributed Fiber-Optic DFO Sensing-Based Multiphase Inflow Profiling Capability by Teymur Sadigov, BP, et al.
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Wang, Cong, Lisha Zhao, Shuhong Wu, and Xinmin Song. "Predicting the Surveillance Data in a Low-Permeability Carbonate Reservoir with the Machine-Learning Tree Boosting Method and the Time-Segmented Feature Extraction." Energies 13, no. 23 (November 30, 2020): 6307. http://dx.doi.org/10.3390/en13236307.
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Predictive analysis of the reservoir surveillance data is crucial for the high-efficiency management of oil and gas reservoirs. Here we introduce a new approach to reservoir surveillance that uses the machine learning tree boosting method to forecast production data. In this method, the prediction target is the decline rate of oil production at a given time for one well in the low-permeability carbonate reservoir. The input data to train the model includes reservoir production data (e.g., oil rate, water cut, gas oil ratio (GOR)) and reservoir operation data (e.g., history of choke size and shut-down activity) of 91 producers in this reservoir for the last 20 years. The tree boosting algorithm aims to quantitatively uncover the complicated hidden patterns between the target prediction parameter and other monitored data of a high variety, through state-of-the-art automatic classification and multiple linear regression algorithms. We also introduce a segmentation technique that divides the multivariate time-series production and operation data into a sequence of discrete segments. This feature extraction technique can transfer key features, based on expert knowledge derived from the in-reservoir surveillance, into a data form that is suitable for the machine learning algorithm. Compared with traditional methods, the approach proposed in this article can handle surveillance data in a multivariate time-series form with different strengths of internal correlation. It also provides capabilities for data obtained in multiple wells, measured from multiple sources, as well as of multiple attributes. Our application results indicate that this approach is quite promising in capturing the complicated patterns between the target variable and several other explanatory variables, and thus in predicting the daily oil production rate.
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Miller, Patrick. "Technology Focus: Reservoir Surveillance (September 2021)." Journal of Petroleum Technology 73, no. 09 (September 1, 2021): 36. http://dx.doi.org/10.2118/0921-0036-jpt.
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It is not unusual to compare a team of subsurface professionals to a team of detectives piecing together a sequence of events to solve a crime. To make sense of what is happening in a hydrocarbon reservoir, subsurface teams, like detectives, typically have incomplete, sparse data sets, sampled at different points in time and space. The data only provide a partial picture of what has happened and what is likely to happen in the future. In either case, surveillance is an essential tactic to build a mental model of the situation. Fortunately, both detectives and subsurface teams have growing surveillance toolboxes to help fill information gaps and narrow the range of possible scenarios. In the oil and gas industry, an endless set of questions can be asked to characterize the state and history of a hydrocarbon reservoir. Teams need to understand the capability of the reservoir to store fluids, stresses acting on the reservoir, what fluids exist and how they interact with each other and the rock, and how fluids are moving (or are likely to move) through the reservoir. Information, however, is rarely free, and different surveillance tools provide varying qualities of information, so it is essential for subsurface professionals to choose wisely in terms of which problems to solve and which tools to pull out of the toolbox. Ultimately, we need to apply the right tools to the right problems to maximize the value of the information we gather. In this feature, we will explore innovative approaches to help better understand the stress state of the reservoir, interactions between different fluids and rocks, and how to track the movement of specific fluid components throughout the reservoir. To do so, the authors of the papers highlighted in this month’s feature apply advanced log data analysis, experimental laboratory work, and compositional reservoir simulation, key tools that every subsurface team should have in its toolbox. Recommended additional reading at OnePetro: www.onepetro.org. SPE 201679 - A Fast Method To Estimate the Correlation Between Confining Stresses and Absolute Permeability of Propped Fractures by Faras Al Balushi, The Pennsylvania State University, et al. SPE 202224 - Downhole Surveillance During the Well Lifetime Using Distributed Temperature Sensing by Ludovic Paul Ricard, CSIRO, et al. SPE 201635 - Predicting Reservoir Fluid Properties From Advanced Mud Gas Data by Tao Yang, Equinor, et al.
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Magner, T. N. "ECONOMIC BENEFITS OF THE KUTUBU RESERVOIR MANAGEMENT STRATEGY." APPEA Journal 35, no. 1 (1995): 121. http://dx.doi.org/10.1071/aj94008.
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In spite of all the of the studies and analyses conducted since the initial oil discovery in 1986, considerable uncertainty existed over the expected performance of the Kutubu reservoirs prior to initial production. Extensive use of reservoir simulation during the field development helped overcome technical challenges in the development phase. Continued modelling work has increased understanding of reservoir behaviour, identified additional development opportunities and further enhanced field economics.Since First Oil in June 1992, over 100 MMSTB of light, sweet Kutubu crude oil have been produced and exported {through October 1994). At present, the field produces approximately 120,000 STBO/D from 27 vertical wells and two horizontal wells. Reservoir pressure maintenance is provided by gravity-stable re-injection of produced gas into five wells.On the whole, the reservoirs have met or exceeded expectations to date. This is in part due to the effective planning and implementation of a strategy to manage the Kutubu reservoirs. This reservoir management strategy combines an aggressive program of reservoir surveillance, data collection, computer simulation and continuous reassessment of previous assumptions.
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JPT staff, _. "Techbits: Workshop Highlights Value of Reservoir Surveillance." Journal of Petroleum Technology 59, no. 05 (May 1, 2007): 34–35. http://dx.doi.org/10.2118/0507-0034-jpt.
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Denney, Dennis. "Development of an Integrated Reservoir-Surveillance Process." Journal of Petroleum Technology 61, no. 09 (September 1, 2009): 67–69. http://dx.doi.org/10.2118/0909-0067-jpt.
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Thakur, G. C. "Waterflood surveillance Techniques - A Reservoir Management Approach." Journal of Petroleum Technology 43, no. 10 (October 1, 1991): 1180–88. http://dx.doi.org/10.2118/23471-pa.
Full textDissertations / Theses on the topic "Reservoir surveillance"
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Bertolini, André Carlos 1980. "Probabilistic history matching methodology for real-time reservoir surveillance = Metodologia de ajuste de histórico probabilístico para monitoramento contínuo de reservatórios." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265767.
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Orientador: Denis José SchiozerTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências
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Resumo: Este trabalho propõe uma metodologia de ajuste de histórico probabilístico em tempo real a fim de melhorar a previsão do reservatório ao longo do tempo. A metodologia proposta utiliza uma avaliação rigorosa nos modelos sincronizada com a frequência de aquisição de dados históricos. Esta avaliação contínua permite uma rápida identificação de deficiência do modelo e reação para iniciar um processo de recaracterização conforme necessário. Além disso, a metodologia inclui uma técnica de quantificação de incertezas utilizando os dados dinâmicos para reduzir as incertezas do reservatório, e um passo para incluir erros de medição e margens de tolerância para os dados históricos. O fluxo de trabalho da metodologia é composto por nove etapas. O fluxo começa com um conjunto de modelos representativos selecionados através de uma abordagem probabilística, as incertezas do reservatório, e um intervalo de aceitação dos dados históricos. Os modelos são simulados e os resultados comparados com os dados históricos. Os passos seguintes são a redução da incerteza e uma segunda avaliação do modelo para garantir um melhor ajuste de histórico. Depois, os modelos são filtrados para descartar aqueles que estejam fora da faixa de aceitação e, em seguida, usados para fazer previsões do reservatório. O último passo é a verificação de novos dados observados, que é sincronizada com a aquisição de dados. O método também apresenta uma maneira inovadora e eficiente para apoiar o monitoramento do reservatório através de indicadores gráficos da qualidade do ajuste. Um modelo de reservatório sintético foi usado em todo o trabalho a fim de controlar os resultados de todos os métodos que apoiam a metodologia proposta. Além disso, a metodologia foi aplicada no modelo UNISIM-IH, baseado no campo de Namorado, localizado na Bacia de Campos, Brasil. Os estudos de caso realizados mostraram que a metodologia proposta assimila continuamente os dados observados do reservatório, avalia o desempenho do modelo, e mantém um conjunto de modelos de reservatórios calibrados em tempo real
Abstract: This work focuses on probabilistic real-time history matching to improve reservoir forecast over time. The proposed methodology uses a rigorous model evaluation, which is synchronized with history data acquisition frequency. A continuous model evaluation allows a quick model deficiency identification and reaction to start a model reparametrization process as needed. In addition, the methodology includes an uncertainty quantification technique, which uses the dynamic data to reduce reservoir uncertainties, and a step to include measurement errors and observed data tolerance margin. The real-time history matching workflow is composed of nine steps. It starts with a set of representative models selected through a probabilistic approach, the uncertainties of the reservoir and an acceptance history data range. The models are run and the results compared with the history data. The following steps are uncertainty reduction and a second model evaluation to guarantee an improved history matching. The models are then filtered to discard any model outside the acceptance range, and then used to make reservoir forecast. In the final step, the workflow searches for new data observed. The methodology also presents a novel and efficient way to support reservoir surveillance through graphical indicators of matching quality. To better control the results of all the methods, which supports the proposed methodology, a synthetic reservoir model was used in the entire work. In addition, the proposed methodology was applied in the UNISIM-I-H model, which is based on the Namorado field, located in the Campos Basin, Brazil. The performed study cases were shown that the proposed history matching procedure assimilates continuously the observed reservoir data, evaluates the model performances through quality indicators and maintains a set of calibrated reservoir models in real-time
Doutorado
Reservatórios e Gestão
Doutor em Ciências e Engenharia de Petróleo
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Mole, Antónia da Conceição dos Reis Pão. "Contribution to the knowledge of selected parasitic infections in red-foxes (Vulpes vulpes) of the Alentejo area." Master's thesis, Universidade de Évora, 2010. http://hdl.handle.net/10174/20776.
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Esta dissertação foi desenvolvida no âmbito do mestrado em Biologia da Conservação e resultou da ligação entre a Biologia e a vigilância sanitária. Durante a época de caça foram capturadas vinte e cinco raposas-vermelhas na região do Alentejo, tendo sido submetidas a provas serológicas para detecção de presença de Leishmania infantum, Toxoplasma gondii e Neospora caninum. Este estudo de vigilância permitirá inferir sobre a saúde do ecossistema e sobre reservatórios de doença tanto para animais silvestres ameaçados, como o lince ibérico, assim como para mamíferos domésticos e para o próprio Homem. Foram detectados, com ELISA, anticorpos anti-L infantum em 5.6% dos animais, anticorpos anti-T. gondii em 50% dos animais, com IFAT e MATe finalmente anticorpos anti-N. caninum em 16.7% das raposas, com IFAT. - ABSTRACT: The present project was developed as an investigation for a master's dissertation in Biology Conservation, a study that links Biology and health surveillance. Twenty-five foxes were obtained during hunting season and serological tests were used to assess the presence of Leishmania infantum, Toxoplasma gondii and Neospora caninum in the red-fox from the Alentejo area; this descriptive surveillance study provides a first insight into the health of the ecosystem and reservoirs of diseases both to endangered sympatric wild species, such as the lberian lynx, and to domestic mammals and even humans. lt's important to better understand the threat and potential impact that disease agents might pose for the conservation of endangered species. Anti-L infantum antibodies were detected by ELISA in 5.6% of the animals, anti-T. gondii antibodies were identified by IFAT and MAT in 50% of the animals; finally, anti-N. caninum antibodies were detected by IFAT in 16.7% of the foxes.
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Kazantsev, Alexandre. "Perturbations d'amplitude du bruit ambiant au droit des hétérogéneités : étude de faisabilité pour l'exploration et la surveillance de réservoirs multi-fluide." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM075/document.
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L'objet de cette thèse est l'étude des possibles mécanismes élastiques expliquant l'amplification du bruit ambiant au droit de certains réservoirs multi-phasiques. Trois jeux de données sont traités. La signature spectrale observée d'un réservoir de vapeur géothermique est différente de celle d'un stockage de gaz. Dans une approche empirique, un algorithme de classification permet d'extraire et de cartographier les anomalies que l'on présume liées au réservoir. Un travail de modélisation est effectué pour tenter d'expliquer les anomalies mesurées. Dans les données réelles, une forte présence de modes supérieurs d'ondes de Rayleigh est détectée. On modélise numériquement en 2D la propagation de ces modes à travers un réservoir placé au sein d'une structure géologique réaliste. La réponse simulée du réservoir se révèle trop faible par rapport aux observations de terrain. Néanmoins, on parvient à inverser les faibles perturbations d'amplitude synthétiques pour la position du réservoir, dans des modèles de référence simples. Cette méthode pourrait être utilisable pour l'imagerie à partir de faibles variations d'amplitudes dans le cadre du monitoring. Pour ce qui est de fortes anomalies observées sur le terrain , il est à noter que les effets visco-élastiques, les effets 3D, et les effets liés à un éventuel champ incident diffus n'ont pas été pris en compte dans la modélisation. Ainsi ce travail n'exclut pas la possibilité de telles anomalies liées à la présence d'un réservoirThis PhD work investigates the possible elastic mechanisms behind the ambient noise amplification above multi-phase fluid reservoirs. Three datasets are analysed above different reservoirs. The observed spectral signature is different in the gas storage and geothermal contexts. A non-supervised algorithm for amplitude spectrum classification is developed, allowing to extract and map the relevant attributes of a multi-phase fluid presence. As a first modelling step, a wavefield characterisation methodology is applied to determine the composition of the ambient noise. It reveals the presence of strong Rayleigh overtones. Numerical 2D elastic modelling is used to simulate the propagation of overtones across a reservoir within a realistic geological structure. The modelled reservoir response is too small compared to the real data. However, the small amplitude perturbations arising in the numerical simulations are successfully inverted for the position of the reservoir, in simple background models. The developed method could in theory be used for imaging small time-lapse amplitude variations (monitoring), despite the obstacles remaining to be overcome before a real-data application. Neither visco-elastic nor 3D effects are adressed. Thus this work does not exclude the possibility of strong reservoir-specific spectral anomalies
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Freitas, Yannara Barbosa Nogueira. "Pesquisa de Trypanosoma cruzi em cães e triatomíneos em área rural do município de Mossoró, Rio Grande do Norte." Universidade Federal Rural do Semi-Árido, 2016. http://bdtd.ufersa.edu.br:80/tede/handle/tede/555.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Affecting humans and various animals and occurring predominantly in rural areas, Chagas disease (CD) is caused by the protozoan Trypanosoma cruzi and has dogs as the main reservoirs in the domestic cycle of the disease. Thus, it aimed to investigate the presence and T. cruzi infection in triatomine. And, in parallel, to seek dogs seropositive to T. cruzi antigens and analyze possible risk factors for infection in dogs. The survey was conducted in the rural area of the municipality of Mossoró, Northeast Brazil, in 11 propriedades with triatomine capture history. Was performed active entomological research and identification of insects and T. cruzi research using the techniques of isolation in culture and polymerase chain reaction (PCR). For the mapping of vectors was used Quantum GIS 2.8.3 software. Was performed serological diagnosis canine using enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence (IIF). Was confirmed the presence of vectors in eight of the 11 property in the study. Were captured 68 insects, 25 nymphs and 43 adult insects identified as Triatoma brasiliensis brasiliensis, Triatoma pseudomaculata, Rhodnius nasutus and Panstrongilus lutzi. All examined specimens (51 specimens) were negative for T. cruzi infection by isolation technique in culture, and of these, 41.17% (21/51) were positive, specified by 90.48% (19/21) nymphs and 9 52% (2/21) T. b. brasiliensis. Eleven percent (25/218) of evaluated dogs were seropositive in both tests, but there was no association between seropositive dogs with the presence and T. cruzi infection in triatomine or factors such as gender, age, function, presence of shelter for dogs and contacts. The mapping identified the areas of greatest risk transmission of the parasite. Thus, it was confirmed the presence of CD vector species in the rural area of the municipality of Mossoro, highlighting the species T. b. brasiliensis as potential vector of the parasite in the region. Therefore, in the study area, the maintenance cycle of disease transmission vector is clear and possible, since there are vectors and reservoirs infected domestic in the home area, increasing the risk of transmission to humans
Acometendo o homem e diversos animais e ocorrendo, predominantemente, na zona rural, a doença de Chagas (DC) é causada pelo protozoário Trypanosoma cruzi e tem os cães como os principais reservatórios no ciclo doméstico da doença. Dessa forma, objetivou-se pesquisar a presença e infecção por T. cruzi em triatomíneos. E, paralelamente, pesquisar cães sororreagentes aos antígenos de T. cruzi e analisar possíveis indicadores de risco para a infecção em cães. A pesquisa foi realizada na área rural do município de Mossoró, Nordeste do Brasil, em 11 propriedades com histórico de captura de triatomíneos. Foi realizada pesquisa entomológica ativa com identificação dos insetos e pesquisa de T. cruzi utilizando as técnicas de isolamento em cultura e Reação em cadeia da polimerase (PCR). Para o mapeamento dos vetores foi utilizado software Quantum GIS 2.8.3. O diagnóstico sorológico canino foi realizado utilizando Ensaio de imunoadsorção enzimática (EIE) e Imunofluorescência indireta (IFI). Foi confirmada a presença de vetores em oito das 11 propriedades rurais do estudo. Foram capturados 68 triatomíneos, sendo 25 ninfas e 43 insetos adultos identificados como Triatoma brasiliensis brasiliensis, Triatoma pseudomaculata, Rhodnius nasutus e Panstrongylus lutzi. Todos os espécimes examinados (51 exemplares) foram negativos para infecção por T. cruzi pela técnica de hemocultivo, e desses, 41,17% (21/51) foram positivos, especificado por 90,48% (19/21) ninfas e 9,52% (2/21) T. b. brasiliensis. Onze por cento (25/218) dos cães avaliados foram sororreagentes em ambos os testes, mas não houve associação entre os cães soropositivos com a presença e infecção por T. cruzi em triatomíneos ou com fatores como sexo, idade, função, presença de abrigo para os cães e contactantes. O mapeamento definiu as áreas de maior risco de transmissão vetorial do parasito. Dessa forma, confirmou-se presença de espécies vetores de DC na área rural do município de Mossoró, destacando-se a espécie T. b. brasiliensis como vetor potencial do parasito na região. Portanto, na área estudada, a manutenção do ciclo da doença por transmissão vetorial é clara e possível, uma vez que, há vetores e reservatórios domésticos infectados em área domiciliar, potencializando o risco de transmissão aos seres humanos
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Schulz, Ansgar [Verfasser], and Martin H. [Akademischer Betreuer] Groschup. "Crimean-Congo hemorrhagic fever orthonairovirus (CCHFV) : Surveillance studies among different livestock in sub-Saharan Africa and the molecular characterization of Hyalomma ticks serving as main reservoir and vector / Ansgar Schulz ; Betreuer: Martin H. Groschup." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2020. http://d-nb.info/1216502544/34.
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Azzola, Jérôme. "Suivi géophysique non conventionnel des réservoirs géothermiques profonds." Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAH005.
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Une technique émergente pour une surveillance géophysique continue et peu coûteuse des structures géologiques telles que les EGS est la corrélation du bruit sismique ambiant. Ces méthodes permettent de surveiller d'infimes changements survenant dans le milieu en étudiant l'évolution de la partie tardive des enregistrements sismiques par interférométrie d'ondes de « coda » (CWI). Cependant, un lien entre les processus physiques impliqués dans l'évolution du milieu et les changements quantifiés par CWI n'a pas encore été clairement décrit. Notre approche est basée sur le développement d'un schéma numérique qui permet d'étudier la signature sur les mesures CWI de la déformation élastique du milieu de propagation. En identifiant la contribution directe de la déformation géométrique du milieu et en comparant cet effet avec celui lié aux changements de vitesses sismiques, notre approche contribue à l'interprétation de ces mesures interférométriques. Le modèle numérique proposé pour étudier l'influence de déformations de réservoir sur les mesures de CWI ouvre de nouvelles perspectives pour appliquer ces approches à la surveillance des réservoirs profondsOne emerging technique for a continuous geophysical monitoring of geological structures such as EGS is the correlation of ambient seismic noise. Such methods make it possible to monitor minute changes by studying the evolution of the late part of seismic recordings by "coda" wave interferometry (CWI). However, a clear connection between the physical processes involved in the evolution of the medium and the changes quantified by CWI has not yet been clearly described. Our approach is based on the development of a numerical scheme which enables to study the signature on CWI measurements of the elastic deformation of the propagation medium. By identifying the direct contribution of the geometrical deformation of the medium and comparing this effect with that related to changes in seismic velocities, our approach contributes to the interpretation of these interferometric measurements. The numerical model proposed to study the influence of reservoir deformations on CWI measurements opens perspectives for the application of such approaches to the monitoring of deep reservoirs
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O'Reilly, Daniel Ian. "Analytical Models for Managing and Predicting the Performance of Mature Waterflooded Reservoirs." Thesis, 2020. https://hdl.handle.net/2440/132667.
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In this thesis, new mathematical models are developed for oil production and water injection wells operating in mature fields. In waterflooded reservoirs, production and injection wells should be monitored throughout field life to maximise recovery. This includes interpretation of pressure and flow rate data from wells. Effective management of mature fields results in balanced voidage replacement and the identification of damaged or underperforming wells for remediation. The motivation for this work originates from the author's experiences working on the mature Windalia waterflooded field on Barrow Island, Australia. While assets like this possess a wealth of production data, methods of direct analysis are often unavailable. Often mature fields are neglected in modern research, but managing these reservoirs is still crucially important for oil & gas operating companies. Application of state-of-the-art methods should not be ignored. For oil wells undergoing artificial lift, which are common in mature operations, mathematical models are derived for the case of cyclic or intermittent production. Using these models, it is possible to calculate Productivity Index and other reservoir properties from production data in cyclic wells. The transient flow regime is considered along with boundary dominated flow (steady or pseudo steady state cases). In the transient case, the superposition of linearised solutions is used to mimic the operation of well pump controllers. In the boundary dominated case, steady state harmonic theory is applied to solve the problem in a novel way. Type curves are presented to assist with interpretation of field data from Pump Off Controllers. Field case studies are presented; in some cases, the theory identified production wells that were later stimulated by a workover rig. For water injectors, the classical Pressure Fall Off transient analysis technique is reviewed and applied in its original format on Barrow Island. Yet there are cases when this simple approach is invalid when interpreting shut-in pressure data. Temperature effects when injecting cold-water into a reservoir are scarcely considered in the literature, with regards to effects inside the well itself. A case of this nature was observed in the field, and new theory developed to account for the heating period during a shut-in where cold water in the well equalises with the surrounding formation temperature. The theory combines the transient pressure from a composite reservoir with transient temperature changes during owing and shut-in periods. The effect on recorded downhole pressure is considerable in some cases. Finally, the method of Rate Transient Analysis (RTA) is extended to include delayed water injection at the outer boundary. In current practice, this effect is not considered when interpreting long term ow rate data from oil wells. In the proposed method, increased production is observed some time after water injection commences. Type curves are generated from analytical solutions derived in the Laplace domain. In addition to reservoir parameters obtained using RTA, the method allows characterisation of waterflood support in terms of effective injection rate and boundary condition (constant-pressure or constant-rate injection). The technique is validated using reservoir simulation and applied to field cases.Thesis (Ph.D.) -- University of Adelaide, Australian School of Petroleum and Energy Resources, 2021
Books on the topic "Reservoir surveillance"
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Mériaux, Patrice, and Laurent Peyras. Retenues d'altitude: Évaluation des risques et des impacts, conception, réalisation, surveillance, réhabilitation. Versailles: Éditions Quae, 2009.
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Kikani, Jitendra. Reservoir Surveillance. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040.
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Generating economic producing opportunities in a new or an existing field is key to the success of an oil and gas company. These opportunities arise from a systematic assessment of key value drivers through relevant and appropriate measurements and by performing vigorous analysis that creates intelligence for the field. Interwoven in this evident and simple construct is the understanding of reservoir surveillance technologies. This book will help the reader not only clearly understand the broad spectrum of issues to consider for surveillance but also provide tools, techniques, and templates to adapt to his or her specific needs. The theory behind some of the equipment as well as data analytics is illustrated with examples. It is essential reading for reservoir, production, operations engineers, and earth scientists. Theoretical background and concepts discussed will be valuable for the university student to gain fluency in this integrated subject. Errata (http://go.spe.org/RSerrata)
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Batycky, Rod, and Marco Thiele. Reservoir Pattern Surveillance of Mature Floods Using Streamlines. Lulu Press, Inc., 2018.
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Chappell, Dave. Waterflooding: Surveillance and Remediation. Society of Petroleum EngineersRichardson, Texas, USA, 2020. http://dx.doi.org/10.2118/9781613998069.
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Used successfully for more than a century, waterflooding remains the most widely performed process relying on an external energy source to maximize reservoir recovery. Multiple factors across a wide range of disciplines contribute to the delivery of a fully optimized project, but not all of these critical success factors have been well-documented. A focus on further optimizing all the varying parts of the process has emerged over time to deliver project success. Waterflooding: Surveillance and Remediation describes the various elements that could be included as components in a waterflood-management surveillance plan and reviews the options available to improve flood performance.
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Barkved, Olav. Seismic Surveillance for Reservoir Delivery From a Practitioner’s Point of View. EAGE Publications bv, 2012. http://dx.doi.org/10.3997/9789073834248.
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Barkved, Olav. Ebook: Seismic Surveillance for Reservoir Delivery From a Practitioner’s Point of View. EAGE Publications bv, 2014. http://dx.doi.org/10.3997/9789462820111.
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Gibson, W. African trypanosomosis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0049.
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The African trypanosomoses are diseases of both man and his livestock. There are two forms of human trypanosomosis or sleeping sickness: Gambian or Rhodesian sleeping sickness, roughly corresponding to a West, Central or East African distribution respectively. Gambian sleeping sickness runs a more protracted and chronic course than the Rhodesian form; nevertheless, human trypanosomosis is invariably fatal if not treated. Animal reservoir hosts, both wild and domestic, assume greater importance for Rhodesian sleeping sickness than Gambian sleeping sickness, and the former is often an occupational hazard of those visiting or working in wildlife areas, e.g. tourists, hunters. Animal trypanosomosis transmitted by tsetse is generally referred to as Nagana, while the disease transmitted by other bloodsucking flies outside the African tsetse belt is known chiefly as Surra, but also by a variety of local names.Sleeping sickness control measures are aimed either at the trypanosome or the fly. Human cases are detected by active or passive surveillance and cured by treatment with trypanocidal drugs.Control of the tsetse vector is by application of residual insecticides or bush clearing and, more recently, by traps or insecticide-impregnated targets, or by wholesale release of sterile males. Tsetse control is more widely employed for the control of animal trypanosomosis than sleeping sickness.
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Schofield, C. J. American trypanosomosis (Chagas disease). Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0050.
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American trypanosomosis is due to infection with Trypanosoma cruzi (Protozoa, Kinetoplastidae). This is a widespread parasite of small mammals and marsupials throughout most of the Americas, roughly from the Great Lakes of North America (approx. 42 ° N) to southern Argentina (approx. 46 ° S). It is mainly transmitted by blood-sucking bugs of the subfamily Triatominae (Hemiptera, Reduviidae) which are widespread in the Americas, but rare in the Old World. Except in some research laboratories, and infected immigrants from Latin America, T.cruzi has not been reported from the Old World, although closely-related trypanosome species are commonly found in Old and New World bats.Human infection with T.cruzi is generally known as Chagas disease, taking the name of Brasilian clinician Carlos Justiniano das Chagas who first described it from patients in central Brasil (Chagas 1909). Chagas isolated and described the parasite, correctly deduced most of its life-cycle and clinical symptoms associated with the infection, identified the insect vectors and some of the reservoir hosts, and also trialed initial attempts to control it. He was nominated at least twice for the Nobel prize in medicine (Coutinho and Dias 2000; Lewinsohn 2003).Although difficult to treat, Chagas disease can be controlled by measures to halt transmission, primarily by eliminating domestic populations of the insect vectors, together with serological screening to avoid transmission by blood donation from infected donors. Since 1991, a series of multinational initiatives have used this approach to halt transmission over vast regions of the areas previously endemic for the human infection. Estimated prevalence of the human infection has declined from the 1990 estimate of 16–18 million people infected, to the current estimate of just over 7 million infected (OPS 2006; Schofield & Kabayo 2008). Prevalence is expected to decline further, and control strategies are now being adjusted to develop a sustainable system of disease surveillance, focal vector control, and specific treatment for any new cases (Schofield et al. 2006; WHO 2007). Guidance for diagnosis and treatment is also required for non-endemic countries, where recent years have seen increasing migration from Latin America such that cases of chronic Chagas disease have now been reported from amongst Latin American migrants in Europe, USA and Canada, and Japan, together with some congenital cases and transmission from infected blood donors and by organ transplant.
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Pozio, Edoardo. Trichinellosis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0068.
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Trichinellosis is caused by nematodes of the genus Trichinella. These zoonotic parasites show a cosmopolitan distribution in all the continents, but Antarctica. They circulate in nature by synanthropic-domestic and sylvatic cycles. Today, eight species and four genotypes are recognized, all of which infect mammals, including humans, one species also infects birds, and two other species infect also reptiles.Parasites of the genus Trichinella are unusual among the other nematodes in that the worm undergoes a complete developmental cycle, from larva to adult to larva, in the body of a single host, which has a profound influence on the epidemiology of trichinellosis. When the cycle is complete, the muscles of the infected animal contain a reservoir of larvae, capable of long-term survival. Humans and other hosts become infected by ingesting muscle tissuescontaining viable larvae.The symptoms associated with trichinellosis vary with the severity of infection, i.e. the number of viable larvae ingested, and the time after infection. The capacity of the worm population to undergo massive multiplication in the body is a major determinant. Progression of disease follows the biological development of the parasite. Symptoms are associated first with the gastrointestinal tract, as the worms invade and establish in the small intestine, become more general as the body responds immunologically, and finally focus on the muscles as the larvae penetrate the muscle cells and develop there. Although Trichinella worms cause pathological changes directly by mechanical damage, most of the clinical features of trichinellosis are immunopathological in origin and can be related to the capacity of the parasite to induce allergic responses.The main source of human infection is raw or under-cooked meat products from pig, wild boar, bear, walrus, and horses, but meat products from other animals have been implicated. In humans, the diagnosis of infection is made by immunological tests or by direct examination of muscle biopsies using microscopy or by recovery of larvae after artificial digestion. Treatment requires both the use of anthelmintic drugs to kill the parasite itself and symptomatic treatment to minimize inflammatory responses.Both pre-slaughter prevention and post-slaughter control can be used to prevent Trichinella infections in animals. The first involves pig management control as well as continuous surveillance programmes. Meat inspection is a successful post-slaughter strategy. However, a continuous consumer education is of great importance in countries where meat inspection is not mandatory.
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Reid, Hugh W., and Mark P. Dagleish. Poxviruses. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0040.
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The poxviruses are a large family of complex viruses infecting many species of vertebrates as well as arthropods, and members of the three genera Orthopoxvirus, Yatapoxvirus and Parapoxvirus are the cause of sporadic zoonotic infections originating from both wildlife and domestic livestock. Infections of humans are generally associated with localized lesions, regarded as inconvenient rather than life-threatening, although severe illnesses have occurred, particularly in immunologically compromised individuals.The most celebrated of the orthopoxvirus infections is cowpox — a zoonotic infection which has been exploited to the enormous benefit of mankind as it had a pivotal role in the initiation of vaccination strategies that eventually led to the eradication of smallpox. Cowpox occurs only in Eurasia and in recent years it has become evident that infection of cattle is fortuitous and the reservoir of infection is in wild rodents. Monkeypox is another orthopoxvirus causing zoonotic infections in central and west Africa resembling smallpox and is the most serious disease in this category. While monkeypox does not readily spread between people, the potential of the virus to adapt to man is of concern and necessitates sustained surveillance in enzootic areas.The third orthopoxvirus zoonoses of importance is buffalopox in the Indian subcontinent, which is probably a strain of vaccinia that has been maintained in buffalo for at least 30 years following the cessation of vaccination of the human population. Likewise in Brazil, in recent years widespread outbreaks of vaccinia have occurred in milkers and their cattle.Orf virus, the most common of the parapoxviruses to cause zoonotic infection, is largely restricted to those in direct contact with domestic sheep and goats. Generally, infection is associated with a single localized macule affecting the hand which resolves without complications. Infection would appear to be prevalent in all sheep and goat populations and human orf is a relatively common occupational hazard. Sporadic parapoxvirus infections of man also occur following contact with cattle infected with pseudocowpoxvirus, and wildlife, in particular seals.A final serious consideration with the poxvirus zoonoses is the clinical similarity of such infections with smallpox. In view of the potential for smallpox virus to be employed by bio-terrorists there can be an urgency for laboratory confirmation of unexplained zoonotic poxvirus infections. Thus there is a requirement to maintain the capacity for rapid confirmation of poxvirus infections by molecular technique. As representatives of the known poxviruses have all been sequenced, generic and virus specific Polymerase Chain Reactions (PCR) can readily be performed to ensure rapid confirmation of any suspect infection.
Book chapters on the topic "Reservoir surveillance"
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Berteussen, Karl-A. "The Use of Permanent or Semipermanent Sea-Bottom Acoustic Sensors for Reservoir Seismic and Reservoir Surveillance." In North Sea Oil and Gas Reservoirs — III, 125–29. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0896-6_9.
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Banerjee, Raj. "Role of Analytics in Extracting Data-Driven Models from Reservoir Surveillance." In Machine Learning Applications in Subsurface Energy Resource Management, 165–84. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003207009-13.
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Yue, Yu, Vo Minh, and Chaohong Xiao. "Reservoir Surveillance and Production Optimization Workflow from Real-Time Data Advantage at a Joint Venture Gas Project." In Springer Series in Geomechanics and Geoengineering, 1883–95. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7560-5_168.
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Djordjevic, Steven P., Veronica M. Jarocki, Branwen Morgan, and Erica Donner. "Genomic Surveillance for One Health Antimicrobial Resistance: Understanding Human, Animal, and Environmental Reservoirs and Transmission." In The Handbook of Environmental Chemistry, 71–100. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/698_2020_626.
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"Well and Production Systems." In Reservoir Surveillance, 47–70. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040-04.
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"Value of Information." In Reservoir Surveillance, 23–45. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040-03.
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"Measurement Equipment and Procedures." In Reservoir Surveillance, 99–134. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040-06.
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"Special Techniques." In Reservoir Surveillance, 195–222. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040-09.
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"Data Assessment and Quality Control." In Reservoir Surveillance, 135–59. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040-07.
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"Data Analytics." In Reservoir Surveillance, 161–94. Society of Petroleum EngineersRichardson, Texas, USA, 2013. http://dx.doi.org/10.2118/9781613993040-08.
Full textConference papers on the topic "Reservoir surveillance"
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Trythall, R., R. S. Parr, J. Wreford, and A. Smout. "Andrew Seismic Reservoir Surveillance." In 65th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.6.a17.
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Parr, R. S., R. Trythall, J. Wreford, and A. Smout. "Andrew 4D reservoir surveillance." In SEG Technical Program Expanded Abstracts 2003. Society of Exploration Geophysicists, 2003. http://dx.doi.org/10.1190/1.1817536.
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Jemmott, Susan Theresa. "Reservoir Surveillance at Work in Gas Reservoirs, Offshore Trinidad." In SPE Latin American and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 2005. http://dx.doi.org/10.2118/94820-ms.
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Potters, Hans, and Pieter Karel Kapteijn. "Reservoir Surveillance and Smart Fields." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2005. http://dx.doi.org/10.2523/iptc-11039-ms.
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Le, Duc H., and Albert C. Reynolds. "Estimation of Mutual Information and Conditional Entropy for Surveillance Optimization." In SPE Reservoir Simulation Symposium. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/163638-ms.
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He, Jincong, Jiang Xie, Pallav Sarma, Xian-Huan Wen, Wen H. Chen, and Jairam Kamath. "Model-Based A Priori Evaluation of Surveillance Programs Effectiveness using Proxies." In SPE Reservoir Simulation Symposium. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/173229-ms.
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Williams, Brock, and Fridtjof Nyhavn. "Wireless Reservoir Surveillance Using Intelligent Tracers." In Offshore Technology Conference. Offshore Technology Conference, 2012. http://dx.doi.org/10.4043/23282-ms.
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Strack, K., S. Dasgupta, and G. Yu. "Full field reservoir surveillance using electromagnetics." In 71st EAGE Conference and Exhibition - Workshops and Fieldtrips. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609.201404891.
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Williams, Brock, and Alvaro Vilela. "Wireless Reservoir Surveillance Using Intelligent Tracers." In SPE Latin America and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/152660-ms.
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Williams, Brock, and Robert Brent Brough. "Wireless Reservoir Surveillance In Deepwater Completions." In SPE Deepwater Drilling and Completions Conference. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/155743-ms.
Full textReports on the topic "Reservoir surveillance"
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Helmut, Bürgmann, Adrian Egli, Andreas Endimiani, Roger Stephan, Sarah Tschudin Sutter, and Wolf-Dietrich Hardt. Routes and reservoirs of AMR-determinants & One Health AMR-surveillance. Swiss National Science Foundation SNSF, November 2022. http://dx.doi.org/10.46446/publication_nrp72.2022.2.en.
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The thematic synthesis “Optimized use of antibiotics and behavior changes” summarises the NRP 72 research that developed and tested interventions aimed at reducing and optimising antibiotic usage. It formulates detailed conclusions and recommendations in this area, which have been drafted in collaboration with researchers and numerous stakeholders.