Artykuły w czasopismach na temat „Offshore program”
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Brasel, John R. "Offshore Procurement Program". Naval Engineers Journal 105, nr 1 (styczeń 1993): 82–83. http://dx.doi.org/10.1111/j.1559-3584.1993.tb02711.x.
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Swayne, D. A., Q. H. Mahmoud i W. Dobosiewicz. "An "offshore-resistant" degree program". Computer 37, nr 8 (sierpień 2004): 102–4. http://dx.doi.org/10.1109/mc.2004.80.
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IHARA, Masaru. "Evaluation program for offshore development system." Journal of the Japanese Association for Petroleum Technology 52, nr 6 (1987): 564–70. http://dx.doi.org/10.3720/japt.52.564.
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Chen, Pi-Yun, i Ming-Hsiung Hsiao. "Service Science in Higher Education". International Journal of Service Science, Management, Engineering, and Technology 5, nr 4 (październik 2014): 1–12. http://dx.doi.org/10.4018/ijssmet.2014100101.
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One of the forms in service innovation for universities in Taiwan is to develop transnational education such as offshore programs where the existent programs were re-innovated by providing new service processes including improved delivery or distribution methods. This study examined how the universities adopted this form of innovation and examined how they productize their offshore programs, corresponding to the four productization practices: specifying, tangibilizing, systemizing and standardizing, in terms of program design, curriculum design, teaching and learning, assessment, and administration. By these productization practices, students and partner universities can have a clearer picture and better understanding of the programs, and the host universities can cut down the administration cost and achieve better efficiency and cost-benefit. This study can be seen as a pioneering study which applies the service science philosophy to redefine higher education and reformulate the process of the service innovation such as offshore program implementation by the productization practices.
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Knobloch, Charles. "OTC. 12 offers full program of offshore technology". Leading Edge 31, nr 4 (kwiecień 2012): 471–73. http://dx.doi.org/10.1190/tle31040471.1.
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DA SILVA Jefferson Joeicemir. "Onshore and offshore turbo generators preventive maintenance program". GSC Advanced Research and Reviews 13, nr 3 (30.12.2022): 006–15. http://dx.doi.org/10.30574/gscarr.2022.13.3.0310.
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The aim of this article is to suggest a common preventive maintenance program for large turbogenerators used on onshore or offshore, the objective is to be generic, under the intention to allow owners of different turbo generators brands a level of standardization. It motivation derives from lack of literature under this approach, either publication from the own manufacturers or old literature were found, in the time where industry 4.0 productivity and availability needs to work together, and the suggest preventive maintenance program works to collaborate on this direction
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Dokken, Quenton R. "Fixed Offshore Platforms for Conducting Scientific Diver Training and Marine Environment Research". Marine Technology Society Journal 34, nr 4 (1.01.2000): 47–49. http://dx.doi.org/10.4031/mtsj.34.4.6.
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Through an umbrella program, the Flower Gardens Ocean Research Program (FGORP), scientists and students from Texas A&M University-Corpus Christi and several other Gulf coast universities have been able to utilize offshore oil/gas production platforms as field stations from which to conduct research and undertake training in scientific diving technology. As a cooperative program with several offshore oils and gas producers, the research and training conducted through FGORP has been effective, productive, and cost efficient.
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Slomski, Stephen, i Vitoon Vivatrat. "Risk Analysis for Arctic Offshore Operations". Marine Technology and SNAME News 23, nr 02 (1.04.1986): 123–30. http://dx.doi.org/10.5957/mt1.1986.23.2.123.
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The ice conditions in the Beaufort Sea are very variable, particularly in the deeper water regions. This variability greatly influences the probability of success or failure of an offshore operation. For example, a summer exploratory program conducted from a floating drilling unit may require a period of 60 to 100 days on station. The success of such a program depends on:the time when the winter ice conditions deteriorate sufficiently for the drilling unit to move on station;the number of summer invasions by the arctic ice pack, forcing the drilling unit to abandon station;the rate at which first-year ice grows to the ice thickness limit of the supporting icebreakers; andthe extent of arctic pack expansion during the fall and early winter. In general, the ice conditions are so variable that, even with good planning, the chance of failure of an offshore operation will not be negligible. Contingency planning for such events is therefore necessary. This paper presents a risk analysis procedure which can greatly benefit the planning of an offshore operation. A floating drilling program and a towing and installation operation for a fixed structure are considered to illustrate the procedure.
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Carpenter, Chris. "A Global Subsea-Hardware-Standardization Program Applied Offshore Brazil". Journal of Petroleum Technology 67, nr 08 (1.08.2015): 91–93. http://dx.doi.org/10.2118/0815-0091-jpt.
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Kuo, Chengi. "Offshore Safety Management: Implementing a SEMS Program, Second Edition". Underwater Technology 33, nr 1 (1.07.2015): 67–68. http://dx.doi.org/10.3723/ut.33.067.
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Evans, Louis H., Jeffery T. Spickett, Joseph R. Bidwell, Robert J. Rippingale i Helen L. Brown. "APPLICATION OF ECOTOXICOLOGY TO ENVIRONMENTAL MANAGEMENT IN THE AUSTRALIAN OFFSHORE OIL AND GAS INDUSTRY". APPEA Journal 34, nr 1 (1994): 809. http://dx.doi.org/10.1071/aj93061.
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Environmental impact from offshore oil and gas exploration and production is likely to arise from five main sources—produced formation water, drilling fluids and cuttiftgs, industrial chemicals used in production activities, accidental oil spills and the physical disruption of the marine environment by coastal and offshore engineering works. The principle task of environmental managers is to evaluate the risk of impact on the marine environment from their company's activities and to formulate and implement company policy and procedures aimed at minimising this risk. Of critical importance is the determination of the extent and scope of the environmental program designed to control and monitor impacts.The development of environmental management programs in the oil and gas industry involves two main processes—ecological risk assessment and formulation of a monitoring program. This review outlines the steps involved in ecological risk assessment with specific reference to the offshore oil and gas industry. Information is presented on the basic principles involved in risk assessment, the main source of environmental impact from offshore oil and gas exploration and production and the different approaches that can be used to predict and monitor impacts. Approaches for improving the cost efficiency of ecotoxicological testing are discussed. Results of recent ecotoxicological studies on a biocide preparation and two corrosion inhibitors used in oil and gas production activities on the North West Shelf are also presented.
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De Melo, Julio, Luis Rojas i Daniel Shorten. "Condition monitoring for the safe operation of offshore cranes". APPEA Journal 56, nr 2 (2016): 605. http://dx.doi.org/10.1071/aj15111.
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Offshore cranes work in harsher conditions than their onshore counterparts, with exposure to a highly corrosive environment and dynamic loading when conducting lifts from floating vessels. These degradation mechanisms can significantly reduce equipment life expectancy and increase maintenance/replacement costs without adequate mitigation programs in place. A systematic process must be followed to identify the potential for loss of integrity of components that could lead to failure, and strategies should be defined/implemented to ensure safe operation. Study outcomes feed into the maintenance and sparing philosophy, and cascade to site personnel as maintenance and operating procedures. The implementation of a robust condition-monitoring program prior to degradation occurring is a key factor in the success of this program, examples of which include the following. Slew bearing condition monitoring: in addition to regular visual inspection and recording of measurable readings, a well-structured grease sampling and analysis protocol provides early detection of moisture ingress, deterioration of lubrication and bearing failure. Structural integrity: reporting on integrity by exception does not provide confidence that an area may have been left out, or consistency in ongoing reporting. End of useful life definition: some components aren’t available for inspection; others can be inspected however they are susceptible to failures that are not practically detectable. These potential hidden failures can be prevented if a process is followed where the critical component’s operating life is defined, with appropriate supporting justification, and it is renewed accordingly regardless of visual appearance. An effective condition-monitoring program allows the operator to ascertain if the strategies in place are effective, pick up early detection of potential failure, and arrest the degradation while still inside a safe operating envelope.
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Kelemen, Stephen. "2015 PESA industry exploration review". APPEA Journal 56, nr 1 (2016): 505. http://dx.doi.org/10.1071/aj15036.
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Globally, 2015 had the lowest addition of new oil reserves in more than 60 years, reflecting both reduced activity and fewer oil opportunities, although significant gas discoveries were made. In Australia, the underlying theme for the year was one of adapting to low oil prices and learning to operate prudently with a lower price outlook. The cautious approach of 2014 persisted, with exploration activity at reduced levels. Offshore seismic recording maintained its recent high activity levels with a total of 45,563 km2 of mainly regional 3D seismic recorded, but onshore seismic recorded was at historically low levels. Nine exploration wells were spudded offshore with limited success (two gas and condensate discoveries at Auriga West–1 in the Browse Basin and Roc–1 in the Roebuck Basin). Onshore, however, the 38 non-CSG exploration wells drilled had a high success rate although discoveries were small. A highlight onshore was Origin Energy reporting encouraging results from the McArthur Basin for its Proterozoic mid-Velkerri Formation shales gas exploration program. Caution also extended to permit activity, where offshore relinquishments exceeded the number of permits granted, and onshore international companies withdrew from their unconventional farmin programs. For permits granted offshore, lower expectations of prospectivity resulted in only one well being committed in the primary term work program. Community pressure continued to play a significant role in the lack of CSG and other exploration drilling in NSW and onshore Victoria.
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Taylor, Miranda, i Bronwyn Struthers. "Safe supervisor competency program (SSCP): a new approach to training and skills development—the behavioural revolution". APPEA Journal 53, nr 2 (2013): 443. http://dx.doi.org/10.1071/aj12054.
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Although the safety performance of the Australian offshore oil and gas industry is best performing in Australia, evidence shows that it performs lower than the oil and gas industries in other parts of the world. In addition, there has been a huge intake of new and inexperienced workers—often from other Australian industry sectors with worse safety performances—particularly in the high-risk offshore construction sector. This industry has also experienced unprecedented growth in recent times. These challenges, combined with a strong commitment from the industry's CEOs to relentlessly pursue continual improvement, provided a compelling case for change. Everyone, from the frontline to the boardroom, plays a critical role in improving safety performance. A range of CEO-safety leadership programs, including the Common Safety Training Program (CSTP) targeted at new entrants to the oil and gas industry, address safety performance. Supervisors are major leaders in workplaces; they are often selected based on technical skills and experience, not always on their people and leadership skills. Before becoming supervisors, many do not receive any related training and/or development, particularly in the offshore construction sector where high turnover and constant change are typical. The solution was seen to be a standard approach to supervisor competence, commonly recognised by all industry players. The Safe Supervisors Competence Program (SSCP) was launched in early March 2011. SSCP is a new industry initiative focused on safety leadership. The program provides supervisors with the skills and behaviours to ensure the safety of individuals and workplace teams and the ability to influence safe behaviours. This extended abstract addresses the SSCP: The problems that promoted its development. How the industry views it as a key solution to those problems. Its philosophy and approach to learning Its differences compared with other programs. Visual testimonials and footage of its participants. Its future and why it is now with APPEA.
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Axelsen, S. B., O. Ø. Knudsen i R. Johnsen. "Protective Coatings Offshore: Introducing a Risk-Based Maintenance Management System—Part 1: Risk Analysis Methodology". Corrosion 65, nr 12 (1.12.2009): 809–16. http://dx.doi.org/10.5006/1.3319107.
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Abstract This paper summarizes the risk analysis methodology and challenges related to the establishment of a risk-based maintenance management system for protective coatings. Maintenance of protective coatings offshore is demanding on resources and costly. Initial selection of a coating system and the quality of the application work, including surface preparation, are vital elements for securing an acceptable coating lifetime. Most offshore installations will require, however, maintenance of the protective coatings due to degradation and/or mechanical damages. Development and implementation of a maintenance program for coatings is therefore an essential part of the overall maintenance programfor these installations. A complete maintenance program development includes: 1) establishment of coating quality status through inspection, 2) preparation of a maintenance program/strategy, and 3) preparation of detailed maintenance plans and job packages/descriptions. Optimization of maintenance and inspection programs through risk analysis is used frequently by the industry today. This principle can also be used for coating maintenance. Since the risk picture can be described by scenario, frequencies, and consequences, risk could be expressed as a function of coating status and a consequence of a coating damage. Based on this assumption, a systematic approach for optimization of the maintenance program has been developed.
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Choung, Joon-Mo, Jang-Hyun Joung, Myung-Hun Choo i Ki-Young Yoon. "Development of Fully Stochastic Fatigue Analysis Program for Offshore Floaters". Journal of the Society of Naval Architects of Korea 44, nr 4 (20.08.2007): 425–38. http://dx.doi.org/10.3744/snak.2007.44.4.425.
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McSWEENEY, KEVIN P., THEO de KOKER i GERRY MILLER. "A Human Factors Engineering Implementation Program Used on Offshore Installations". Naval Engineers Journal 120, nr 3 (grudzień 2008): 37–49. http://dx.doi.org/10.1111/j.1559-3584.2008.00152.x.
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Bocard, Christian, Gilles Castaing, Jean Ducreux, Claude Gatellier, Jean Croquette i François Merlin. "Summary of protecmar experiments, the French dispersant offshore trials program". Oil and Chemical Pollution 3, nr 6 (styczeń 1986): 471–84. http://dx.doi.org/10.1016/s0269-8579(86)80027-2.
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Gorton, Alicia M., i Will J. Shaw. "Advancing Offshore Wind Resource Characterization Using Buoy-Based Observations". Marine Technology Society Journal 54, nr 6 (1.11.2020): 37–43. http://dx.doi.org/10.4031/mtsj.54.6.5.
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AbstractAs countries continue to implement sustainable and renewable energy goals, the need for affordable low-carbon technologies, including those related to offshore wind energy, is accelerating. The U.S. federal government recognizes the environmental and economic benefits of offshore wind development and is taking the necessary steps to overcome critical challenges facing the industry to realize these benefits. The U.S. Department of Energy (DOE) is investing in buoy-mounted lidar systems to facilitate offshore measurement campaigns that will advance our understanding of the offshore environment and provide the observational data needed for model validation, particularly at hub height where offshore observations are particularly lacking. On behalf of the DOE, the Pacific Northwest National Laboratory manages a Lidar Buoy Program that facilitates meteorological and oceanographic data collection using validated methods to support the U.S. offshore wind industry. Since being acquired in 2014, two DOE lidar buoys have been deployed on the U.S. east and west coasts, and their data represent the first publicly available multi-seasonal hub height data to be collected in U.S. waters. In addition, the buoys have undergone performance testing, significant upgrades, and a lidar validation campaign to ensure the accuracy and reliability of the lidar data needed to support wind resource characterization and model validation (the lidars were validated against a reference lidar installed on the Air-Sea Interaction Tower operated by the Woods Hole Oceanographic Institution). The Lidar Buoy Program is providing valuable offshore data to the wind energy community, while focusing data collection on areas of acknowledged high priority.
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Olagbende, O. T., G. O. Ede i L. E. D. Inyang. "Rapid Operational and Scientific Response to the Idoho-Qit Pipeline Spill, Nigeria". International Oil Spill Conference Proceedings 1999, nr 1 (1.03.1999): 731–35. http://dx.doi.org/10.7901/2169-3358-1999-1-731.
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ABSTRACT The 12 January 1998 rupture of a 24-inch pipeline from the IDOHO platform to the Mobil Qua Iboe terminal resulted in the release of approximately 40,000 bbl of light Nigerian crude oil. Because of rapid westerly transport, dispersants were the method of primary response, with approximately 250 barrels being applied. Also, because more than 90% of the oil was dispersed offshore, heavy shoreline oiling was limited and localized. However, due to westward transport by nearshore currents, remnants of the spill tracked 5–10 km offshore from the spill source were observed at Lagos harbor, about 900 km away. Oiling of interior sensitive mangrove habitats was limited to a few locations. Exposed sand beaches self-cleaned within 2–3 weeks. Cleanup of heavily impacted shoreline areas recovered approximately 1000 bbl of oily waste. A national and international team of scientists was activated within 24 hours and directed toward measuring impact on environmental resources important to local human activities. Elements of the scientific program were (1) offshore components, including fisheries, benthos, chemistry, microbiology; and (2) riverine/estuary, including extensive water analysis to detect any spill input to water resources used by local settlements and chemical analysis of local fish market samples. Preliminary results indicated that any initial environmental effects were limited and localized. Based on the initial program, a larger follow-up program is planned involving offshore studies, a shoreline fate and effects program, impact to mangrove habitats, and a study of any socioeconomic and human health effects.
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Hossin, M., i H. Marzouk. "Crack spacing for offshore structures". Canadian Journal of Civil Engineering 35, nr 12 (grudzień 2008): 1446–54. http://dx.doi.org/10.1139/l08-073.
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The main focus of this investigation is directed toward the examination of crack-spacing expressions suitable for offshore concrete structure applications. Offshore structures are unique structures that are constantly exposed to harsh environmental conditions, including exposure to seawater and sea spray. The splash zone of an offshore structure is the section of the platform that is the most exposed to both a harsh marine environment and seawater. The design of offshore structures is controlled by mandatory design codes to ensure structural safety and integrity. Most of the available expressions for crack spacing were developed for building structures using normal-strength concrete and normal concrete cover. However, offshore structures are built using high-strength concrete with a thick concrete cover. Very little information is published on the crack analysis of high-strength concrete with a thick concrete cover for offshore applications. An experimental testing program was designed to examine the effects of concrete cover and the bar spacing of normal- and high-strength concrete on crack spacing. The different code expressions are evaluated with respect to the experimental results.
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Pontes, M. T., G. A. Athanassoulis, S. Barstow, L. Cavaleri, B. Holmes, D. Mollison i H. Oliveira-Pires. "An Atlas of the Wave-Energy Resource in Europe". Journal of Offshore Mechanics and Arctic Engineering 118, nr 4 (1.11.1996): 307–9. http://dx.doi.org/10.1115/1.2833921.
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An atlas of the European offshore wave energy resource, being developed within the scope of a European R&D program, includes the characterization of the offshore resource for the Atlantic and Mediterranean coasts of Europe in addition to providing wave-energy and wave-climate statistics that are of interest to other users of the ocean. The wave data used for compiling the Atlas come from the numerical wind-wave model WAM, implemented in the routine operation of the European Centre for Medium Range Weather Forecasts (ECMWF), in addition to directional wave measurements from the Norwegian offshore waters.
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Bernecker, Thomas, Dianne Edwards, Tehani Kuske, Bridgette Lewis i Tegan Smith. "Prospectivity of the 2014 offshore acreage release areas for petroleum exploration". APPEA Journal 54, nr 1 (2014): 383. http://dx.doi.org/10.1071/aj13040.
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The Australian Government formally releases new offshore exploration areas at the annual APPEA conference. Industry nominations provided guidance for the selection of gazettal areas, and in 2014 all 30 areas are supported by such nominations. The release areas are located across various offshore hydrocarbon provinces ranging from mature basins with ongoing oil and gas production to exploration frontiers. Work program bids are invited for two rounds closing on 2 October 2014 and 2 April 2015, while the closing date for four cash bid areas is 5 February 2015. Twenty-nine of the 2014 Release Areas are located along Australia’s northern margin within the Westralian Superbasin, which encompasses the rift-basins that extend from the Northern Carnarvon Basin to the Bonaparte Basin. Evolution during Gondwana break-up established a series of petroleum systems, many of which have been successfully explored, while others remain untapped. Only one area was nominated and approved for release on Australia’s southern margin. The 220 graticular blocks cover almost the entire Eyre Sub-basin of the Bight Basin. In the context of the recent commencement of large-scale exploration programs in the Ceduna and Duntroon sub-basins, this release area provides additional opportunities to explore an offshore frontier. Geoscience Australia’s new long-term petroleum program supports industry activities by engaging in petroleum geological studies that are aimed at the establishment of margin to basin-scale structural frameworks and comprehensive assessments of Australian source rocks underpinning all hydrocarbon prospectivity studies.
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Bernecker, Tom. "The 2010 Australian offshore release for petroleum exploration". APPEA Journal 50, nr 1 (2010): 5. http://dx.doi.org/10.1071/aj09002.
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The Australian Government formally releases new offshore exploration areas at the annual APPEA conference. In 2010, thirty-one areas in five offshore basins are being released for work program bidding. Closing dates for bid submissions are either six or twelve months after the release date—i.e. 11 November 2010 and 12 May 2011—depending on the exploration status in these areas and on data availability. The 2010 release areas are located in Commonwealth waters offshore Northern Territory, Western Australia and South Australia, comprising intensively explored areas close to existing production as well as new frontiers. The Westralian Superbasin along the North West Shelf continues to feature prominently, and is complimented by a new frontier area in offshore SW Australia (Mentelle Basin), as well as two areas in the Ceduna/Duntroon sub-basins in the eastern part of the Bight Basin. The Bonaparte Basin is represented by three areas in the Petrel Sub-basin and two areas in the Vulcan Sub-basin. Further southwest, four large areas are being released in the outer Roebuck Basin—a significantly under-explored region. This year, the Carnarvon Basin provides 16 release areas of which three are located in the Beagle Sub-basin, five in the Dampier Sub-basin, five in the Barrow Sub-basin, three on the Exmouth Plateau and three in the Exmouth Sub-basin. The largest singular release area covers much of the Mentelle Basin in offshore SW Australia, and two areas are available in the Ceduna and Duntroon sub-basins as part of South Australia’s easternmost section of the Bight Basin. The 2010 Offshore Acreage Release offers a wide variety of block sizes in shallow as well as deep water environments. Area selection has been undertaken in consultation with industry, the States and the Northern Territory. As part of Geoscience Australia’s Offshore Energy Security Program, new data has been acquired in offshore frontier regions parts of which are being published on the Mentelle Basin (Borissova et al, this volume).
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Sankaran, Shankar, Stewart Hase, Bob Dick i Alan Davies. "Reflections on developing an offshore, action research/learning-based Ph.D. program". Action Learning: Research and Practice 3, nr 2 (wrzesień 2006): 197–211. http://dx.doi.org/10.1080/14767330600885920.
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Lange, Bernhard, i Jørgen Højstrup. "Evaluation of the wind-resource estimation program WAsP for offshore applications". Journal of Wind Engineering and Industrial Aerodynamics 89, nr 3-4 (marzec 2001): 271–91. http://dx.doi.org/10.1016/s0167-6105(00)00082-9.
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Riyanto, Raditya Danu, i Murdjito. "Developing the Structural Integrity Management System for Ageing Fixed Offshore Oil Platforms in Indonesia". Applied Mechanics and Materials 862 (styczeń 2017): 265–70. http://dx.doi.org/10.4028/www.scientific.net/amm.862.265.
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Offshore structure, particularly fixed offshore structures, should be kept in the performance for the fit-for-purpose condition during their operating lifetime. For fixed offshore structures that exceed their designated life years, the proper Structural Integrity Management System (SIMS) should be developed and applied. Despite the fixed offshore platforms have their service life, there are still platforms that continue to operate exceeding their service lifetime. These ageing platforms should be taken care thoroughly to avoid the consequences that could take casualties. This paper will propose the proper initiation of SIMS development for ageing fixed offshore platforms in Indonesia, by taking an example at Bekapai Field Platforms in East Kalimantan. Using HAZID technique and several ranking criteria, the platforms are assessed and ranked. Platforms that categorized in critical condition are grouped based on similarities in geometry and function. The highest rank is analyzed in computer Finite Element Analysis (FEA) Software with modification based on latest inspection result. This method is proven to be a proper method to be used as a maintenance program for ageing fixed offshore platforms in Indonesia.
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Bernecker, Thomas. "Review of the 2009 offshore petroleum exploration release areas". APPEA Journal 49, nr 1 (2009): 465. http://dx.doi.org/10.1071/aj08031.
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The Australian Government formally releases new offshore exploration areas at the annual APPEA conference. This year, 31 areas plus two special areas in five offshore basins are being released for work program bidding. Closing dates for bid submissions are either six or twelve months after the release date (i.e. 3 December 2009 and 29 April 2010), depending on the exploration status in these areas is and on data availability. The 2009 release areas are located in Commonwealth waters offshore Northern Territory, Western Australia, South Australia and Victoria, comprising intensively explored areas close to existing production as well as new frontiers. As usual, the North West Shelf features very prominently and is complimented by new areas along the southern margin, including frontier exploration areas in the Ceduna Sub-basin (Bight Basin) and the Otway Basin. The Bonaparte Basin is represented by one release area in the Malita Graben, while five areas are available in the Southern Browse Basin in an under-explored area of the basin. A total of 14 areas are being released in the Carnarvon Basin, with eight areas located in the Dampier Sub-basin, three small blocks in the Rankin Platform and three large blocks on the Northern Exmouth Plateau (these are considered a deep water frontier). In the south, six large areas are on offer in the Ceduna Sub-basin and five areas of varying sizes are being released in the Otway Basin, including a deep water frontier offshore Victoria. The special release areas are located in the Petrel Sub-basin, Bonaparte Basin offshore Northern Territory, and encompass the Turtle/Barnett oil discoveries. The 2009 offshore acreage release offers a wide variety of block sizes in shallow as well as deep water environments. Area selection has been undertaken in consultation with industry, the states and Territory. This year’s acreage release caters for the whole gamut of exploration companies given that many areas are close to existing infrastructure while others are located in frontier offshore regions. As part of Geoscience Australia’s Offshore Energy Security Program, new data has been acquired in offshore frontier regions and have yielded encouraging insights into the hydrocarbon prospectivity of the Ceduna-Sub-basin.
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Molyneux, Simon J., Samantha Jarvis i James K. Dirstein. "Offshore data acquisition in shallow water: challenges and opportunities". APPEA Journal 59, nr 2 (2019): 915. http://dx.doi.org/10.1071/aj18035.
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The acquisition of geophysical data, in particular conventional marine seismic, in areas of shallow water (<20 m) has always been challenging in terms of cost, quality and permitting. A heightened sensitivity about the possible environmental impact of conventional marine seismic has made achieving environmental approval of marine seismic activity in water depths up to 60 m challenging in Australia. In this paper, a suggestion is made to re-frame permit work programs around in-permit mobilisations where impact to the exploration assessment is maximised, and environmental disturbance is minimised. This approach will be illustrated through a discussion of (1) recent approved Australian environmental plans and water depth issues and a good practice approach to permitting of shallow water seismic acquisition using the Zenaide 3D and Bethany 3D as examples, and (2) alternatives to conventional marine seismic acquisition, including an articulation of the technical strengths and weaknesses alongside a consideration of alternative approaches from an environmental, work program and regulatory point of view.
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Arifin, Muhamad, Arif Cahyono, Idam Putra i Badrul Munir. "Assessment of Offshore Piping Composite Repair Technology for Life Extension Program Case in Pertamina Hulu Energy West Madura Offshore". MATEC Web of Conferences 269 (2019): 06005. http://dx.doi.org/10.1051/matecconf/201926906005.
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The pipe work repair method such as clamps and pipe connector as the use of metallic repair component have been used for maintenance and repair application in oil and gas industry and cover the most common types of defect to pressurize system like internal and external corrosion and also cover situations where the damage is severe. On the other hand with a process safety precausion and production concern, in oil and gas facility the use of metallic repair is very challenging and most of the time will come as last option scenario. Composite repair which are now increasing in application to pipe repair situations may come as a solution. This paper provides assessment of offshore piping composite repair for life extension program of pressure system in West Madura Offshore. Assessment come to a conclusion that the composite repair at field PHE WMO which operate on envelop of 700 psi and temperature range of 20°C-80°C are still in good condition and retain the integrity of the asset, from where then the repair is considered to extent its lifetime.
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Ben Hmida, Jalel, Grant Regan i Jim Lee. "Inventory Management and Maintenance in Offshore Vessel Industry". Journal of Industrial Engineering 2013 (14.03.2013): 1–7. http://dx.doi.org/10.1155/2013/851092.
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An evaluation of the inventory policy at an offshore vessel company was conducted. Currently the items in inventory are used at random intervals as they are used only when parts fail. To solve the problem of reducing a very large inventory but keep enough to allow an uninterrupted service to the customer, we propose a real and economically efficient multicriteria inventory policy using inventory classification method integrated with a preventive maintenance program. The proposed method can be summarized in the following three steps: first, rank the parts according to both the lead time from supplier and the cost of downtime failure and use a matrix display to show the most critical items. In the second step develop a preventive maintenance program for the most critical parts to minimize downtime due to failure. Finally in the third step standardize most critical parts to reduce the inventory which saves the company money while maintaining the same level of service to its customers. Our study showed that the company with a very large inventory could effectively reduce its size by focusing on key parts.
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Natasha, Ivana, i Chaidir A. Makarim. "ANALISIS KEGAGALAN TIANG PANCANG PADA KONSTRUKSI DERMAGA DENGAN PROGRAM APILE OFFSHORE, LPILE, DAN GRLWEAP". JMTS: Jurnal Mitra Teknik Sipil 1, nr 1 (2.08.2018): 177. http://dx.doi.org/10.24912/jmts.v1i1.2255.
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Konstruksi lepas pantai (offshore) berbeda di dalam perencanaannya dengan konstruksi di daratan (onshore) dan kosntruksi di dekat pantai (near shore). Analisis yang dilakukan pada skripsi ini menggambarkan interaksi antara konstruksi dengan parameter hidrodinamika, antara lain: beban siklik akibat ombak berulang, penggerusan (scouring), dan gaya gesek selimut negatif akibat endapan dari muara sungai. Skripsi ini memaparkan perbedaan tersebut dan menampilkan contoh kegagalan yang terjadi pada suatu proyek dermaga pada salah satu kawasan pulau di Indonesia. Metode yang dapat digunakan untuk menganalisis kegagalan antara lain adalah dengan menggunakan analisis kapasitas tiang dan data hasil pukulan tiang untuk mendapatkan kapasitas tiang secara aksial dan lateral dengan program APILE Offshore dan LPILE, serta simulasi pemancangan tiang dengan program GRLWEAP. Input parameter yang digunakan berupa parameter tanah, tiang, dan hammer. Hasil analisis dari program akan dibandingkan dengan kapasitas tiang hasil uji pembebanan dinamik (PDA test) dan kalendering serta beban yang harus dipikul oleh tiang.
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Boore, David M., i Charles E. Smith. "Analysis of earthquake recordings obtained from the Seafloor Earthquake Measurement System (SEMS) instruments deployed off the coast of southern California". Bulletin of the Seismological Society of America 89, nr 1 (1.02.1999): 260–74. http://dx.doi.org/10.1785/bssa0890010260.
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Abstract For more than 20 years, a program has been underway to obtain records of earthquake shaking on the seafloor at sites offshore of southern California, near oil platforms. The primary goal of the program is to obtain data that can help determine if ground motions at offshore sites are significantly different than those at onshore sites; if so, caution may be necessary in using onshore motions as the basis for the seismic design of oil platforms. We analyze data from eight earthquakes recorded at six offshore sites; these are the most important data recorded on these stations to date. Seven of the earthquakes were recorded at only one offshore station; the eighth event was recorded at two sites. The earthquakes range in magnitude from 4.7 to 6.1. Because of the scarcity of multiple recordings from any one event, most of the analysis is based on the ratio of spectra from vertical and horizontal components of motion. The results clearly show that the offshore motions have very low vertical motions compared to those from an average onshore site, particularly at short periods. Theoretical calculations find that the water layer has little effect on the horizontal components of motion but that it produces a strong spectral null on the vertical component at the resonant frequency of P waves in the water layer. The vertical-to-horizontal ratios for a few selected onshore sites underlain by relatively low shear-wave velocities are similar to the ratios from offshore sites for frequencies less than about one-half the water layer P-wave resonant frequency, suggesting that the shear-wave velocities beneath a site are more important than the water layer in determining the character of the ground motions at lower frequencies.
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Bernecker, Thomas. "Geological overview of the 2011 offshore acreage release for petroleum exploration". APPEA Journal 51, nr 1 (2011): 7. http://dx.doi.org/10.1071/aj10002.
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The Australian Government formally releases new offshore exploration areas at the annual APPEA conference. In 2011, 29 areas in eight offshore basins are being released for work program bidding. Closing dates for bid submissions are either six or 12 months after the release date (i.e. 13 October 2011 and 12 April 2012)–this depends on the exploration status in these areas and on data availability. The 2011 Release is the largest since the year 2000 with all 29 areas located in Commonwealth waters offshore NT, WA, Victoria and Tasmania, covering about 200,000 km2. The producing hydrocarbon provinces of the Carnarvon, Otway and Gippsland basins are represented by gazettal blocks that are located close to existing infrastructure and are supported by extensive open file data-sets. Other areas that are close to known oil and gas discoveries lie in the Caswell Sub-basin (eastern Browse Basin) and on the Ashmore Platform (northwestern Bonaparte Basin). A particular aspect of the 2011 release is provided by 13 areas in under-explored regions offshore NT and WA–all of which range from 100–280 graticular blocks in size. These areas, located in the Money Shoal, outer Browse, Roebuck, northeastern Carnarvon, Southern Carnarvon and North Perth basins, offer new opportunities for data-acquisition and regional exploration. The release of three large areas in the Southern Carnarvon and North Perth basins is supported by new data acquired and interpreted by Geoscience Australia as part of the Offshore Energy Security Program, which selected results are being presented at this year’s conference.
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Zhang, Dapeng, Bowen Zhao, Yong Bai i Keqiang Zhu. "Dynamic Response of DP Offshore Platform-Riser Multi-Body System Based on UKF-PID Control". Journal of Marine Science and Engineering 10, nr 11 (28.10.2022): 1596. http://dx.doi.org/10.3390/jmse10111596.
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The coupling effect between the offshore platform and the riser in the offshore platform-riser multi-body system might be greatly increased under heavy external maritime stresses. The system will become significantly more nonlinear. The partial secondary development of OrcaFlex is carried out considering the strong non-linearity of the dynamic positioning (DP) offshore platform-riser multi-body system, combined with the actual offshore construction engineering background and the lumped mass method, based on Python-language embedded programming with the basis of the operation principle of the application program interface (API) and the composition of its modules. To regulate the dynamic positioning of the offshore platform-riser multi-body coupling system, a UKF-PID control approach based on an unscented Kalman filter is presented. Based on the procedures described above, a classical calculation model is created, and the model’s calculation results are compared to those of relevant references, confirming the method’s validity and viability. Finally, the model of the PID-controlled dynamic positioning offshore platform-riser rigid–flexible multi-body system is developed, and a dynamic simulation is performed under specified sea conditions. The findings have implications for engineering practice.
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Gillett, Robert J. "REHABILITATION OF OFFSHORE BASED EMPLOYEES-A COST EFFECTIVE APPROACH". APPEA Journal 34, nr 1 (1994): 170. http://dx.doi.org/10.1071/aj93016.
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This paper will outline the experience of a cost effective rehabilitation policy for Offshore based workers. Woodside Injury Management Program focuses on Early Intervention and Alternative Duties as strategies.This approach has enabled Woodside to reduce the average cost of Offshore based employees' Workers' Compensation claims from $26 993 in 1986 to $6 043 in 1992.The number of days lost have been reduced from 61.1 days per lost time claim in 1986 to 26.2 days in 1992.
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Lindsay, John A., i Robert Aguirre. "Global Offshore Hazardous Materials Sites GIS". Marine Technology Society Journal 38, nr 3 (1.09.2004): 36–43. http://dx.doi.org/10.4031/002533204787511237.
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Underwater dumpsites or hazardous material sites lie in every ocean on the earth. A geographic information system (GIS) project documents the locations and associated data of Global Offshore Hazardous Materials Sites (GOHMS) potentially posing threats to human health, safety, navigation, commercial fishing, and the environment. Nearly 350 sites are currently in the project. This paper discusses some of the history of hazardous materials disposal and loss at sea, primarily off the United States coast between 1945 and 1970 when few guidelines existed to geographically document an underwater site. Although not publicly distributed at present, the GOHMS GIS project is intended to add value to existing historical information by providing site investigators and responders easy access to waste stream locations and other spatial data through NOAA's Office of Response and Restoration and the National Marine Sanctuaries Program.
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Whiteway, Tanya, Andrew Heap, Tara Anderson i Rachel Przeslawski. "Marine mapping survey reveals broad-scale seabed environments of remote offshore basins in Western Australia". APPEA Journal 50, nr 2 (2010): 730. http://dx.doi.org/10.1071/aj09094.
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Between October 2008 and January 2009, Geoscience Australia conducted a marine mapping survey to document the seabed environments and subsurface geology of the Zeewyck, Houtman, Exmouth sub-basins and the deep-water Wallaby (Cuvier) Plateau, Western Australia. The seabed mapping survey, the second and largest mapping survey of the Federal Government’s Offshore Energy Security Program, documented seabed environments and biota from multibeam sonar and sub-bottom profiler data, towed video footage and physical samples. Preliminary analysis of the data indicates that for all of the sub-basins the seabed is comprised of carbonate mud that supports relatively sparse infaunal populations. Rocky substrates, principally in the numerous submarine canyons, supported sparse communities of sessile organisms. Interestingly, some of these hard-grounds were associated with volcanic (basaltic) peaks on the upper slope that attain 200 metres above the surrounding seabed. Data collected from the survey are being analysed in conjunction with existing environmental data to establish a series of environmental summaries that describe the key seabed habitats and biota for the offshore basins. The environmental summaries are being made available to support future acreage release in the sub-basins. The marine mapping survey was run in combination with a regional 2D seismic survey of the same offshore basins, also completed as part of the Offshore Energy Security Program.
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Idris, Ahmad, Indra Sati Hamonangan Harahap i Montasir Osman Ahmed Ali. "Simplified Computer Program for Ocean Wave Simulation". International Journal of Engineering & Technology 7, nr 4.38 (3.12.2018): 1384. http://dx.doi.org/10.14419/ijet.v7i4.38.27880.
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Analysis and design of structures located offshore involves the simulation of the ocean wave process in order to select a design load. This is a rigorous process that involves the solution of difficult mathematical equations. This study presents an efficient computer program for the simulation of the wave. The program was designed in such a way that only the wave parameters for a given location are required as input. The program then simulate the wave using Karhunen-Loeve series representation in which the eigenfunctions of Prolate Spheroidal Wave Functions are developed and used. The use of the program was demonstrated by simulating an example wave.
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Situmorang, Dr B. "Offshore Exploration For Hydrocarbons In Indonesia". Scientific Contributions Oil and Gas 8, nr 2 (25.04.2022): 3–8. http://dx.doi.org/10.29017/scog.8.2.901.
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Indonesian offshore areas in 1985 are still the loci of an active exploration program. Exploration activities are anticipated to be at the same level as in 1984. A new ofl field in the East Java Sea (the Madura field) began production in September 1985 with initial production of 10.9 MBOPD. The month of August 1985 is marked by the significant oil and gas discovery in the Banggai basin, offshore East Sulawesi, where the Tlaka-1 exploratory well flowed 3864 BOPD (29° API) and 1.1 MMSCF gas (60 ppm HS) from Middle Miocene plat-form carbonates. Together with exploration drillings in the area beyond the continental shelf which have been started since February 1984 such as in the area north of Lombok, the discovery will encrease enthusiasm for exploration of the frontier areas especially in the geologically complex reglon of Eastern Indonesia. It also reveals that potential accumulation of hydrocarbons could also occur within the collision complex.
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Lange, Bernhard, Hans-Peter Waldl, Algert Gil Guerrero, Detlev Heinemann i Rebecca J. Barthelmie. "Modelling of Offshore Wind Turbine Wakes with the Wind Farm Program FLaP". Wind Energy 6, nr 1 (styczeń 2003): 87–104. http://dx.doi.org/10.1002/we.84.
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Harleman, Donald R. F., William C. Nolan i Vernon C. Honsinger. "DYNAMIC ANALYSIS OF OFFSHORE STRUCTURES". Coastal Engineering Proceedings 1, nr 8 (29.01.2011): 28. http://dx.doi.org/10.9753/icce.v8.28.
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Analytical procedures are presented for calculation of the dynamic displacements of fixed offshore structures in oscillatory waves. The structure considered has four legs in a square configuration with waves impinging normal to one side; however, the procedures are general and may be applied to other configurations and wave directions. The horizontal displacement of the deck is determined as a function of time by application of vibration theory for a damped, spring-mass system subject to a harmonic force. The instantaneous wave force on each leg is composed of a hydrodynamic drag component and an inertial component as in the usual "statical" wave force analysis. The wave force expression is approximated by a Fourier series which permits calculation of the platform displacement by superposition of solutions of the equation of motion for the platform. Depending on the ratio of the wave frequency to the natural frequency of the platform, the structural stresses may be considerably high* than those found by methods which neglect the elastic behavior of the structure. The highest wave to be expected in a given locality is not necessarily the critical design wave. Maximum displacements and structural stresses may occur for smaller waves having periods producing a resonant response of the platform. Displacement measurements in a wave tank using a platform constructed of plastic are presented to show the validity of the analytical method. Both small and finite amplitude waves are used over a wide range of frequency ratios. A digital computer program (7090 FORTRAN) is used for the displacement calculation.
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Kaiser, Mark J. "The Texas Artificial Reef Program". Marine Technology Society Journal 40, nr 1 (1.03.2006): 62–72. http://dx.doi.org/10.4031/002533206787353619.
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The National Fishing Enhancement Act (NFEA) of 1984 was designed to promote and facilitate efforts to establish artificial reefs for the purpose of enhancing fishery resources and commercial and recreational opportunities. In 1991, the Texas Artificial Reef Program was established based on the guidelines of the NFEA to provide a means for the oil and gas industry to donate their obsolete structures as artificial reefs. Currently, over 35 permitted reef sites from over 70 decommissioned platforms have been created offshore Texas. The purpose of this paper is to summarize the regulatory background of the Texas Artificial Reef Program, to discuss the nature of the cost savings associated with reef donation, and to derive first-order approximate relations that predict the donation amount. Statistical data describing the frequency of rig donations as a function of water depth and planning area are provided, and regression models of the donation are developed based on the structure size, water depth, removal method, and proximity of the platform to the permitted reef site.
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Guan, Shane, i Samuel L. Denes. "Acoustic impact studies and assessments by Bureau of Ocean Energy Management on offshore wind development". Journal of the Acoustical Society of America 151, nr 4 (kwiecień 2022): A238—A239. http://dx.doi.org/10.1121/10.0011184.
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The U.S. Bureau of Ocean Energy Management (BOEM) manages the exploration and development of offshore energy resources, including offshore wind development, on the U.S. Outer Continental Shelf. Construction, operation, and decommissioning of offshore wind facilities generate intense or long-lasting underwater sounds and vibrations that may be detrimental to marine life. This presentation will provide an overview of the activities that BOEM is in engaging in to address these impacts. BOEM’s Environmental Studies Program (ESP) has been developing funding and managing numerous studies to understand sound field characteristics and sound propagation from pile driving and geophysical surveys related to offshore wind development, as well as marine species responses to these activities. In addition, BOEM established the Center for Marine Acoustics (CMA) to strengthen its role as a driving force within the regulatory community on sound in the marine environment and provides acoustical expertise within the environmental permitting process. The CMA continues to provide guidance on the development of best practices for the use of acoustics in the evaluating the effects of offshore wind on marine fauna. This presentation will highlight the relevant acoustic studies and explain how BOEM is using the science to better manage noise impacts on the ocean environment.
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Manfra, Loredana, Claudia Virno Lamberti, Silvia Ceracchi, Giordano Giorgi, Daniela Berto, Marina Lipizer, Michele Giani i in. "Challenges in Harmonized Environmental Impact Assessment (EIA), Monitoring and Decommissioning Procedures of Offshore Platforms in Adriatic-Ionian (ADRION) Region". Water 12, nr 9 (1.09.2020): 2460. http://dx.doi.org/10.3390/w12092460.
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A harmonized and integrated approach for monitoring and assessment of contamination, including hydrocarbon exploitation one, is required both by Marine Strategy Framework Directive (MSFD) at EU level and by the Ecosystem Approach (EcAp) program of the Barcelona Convention at Mediterranean level. A broad review of protocols of environmental impact assessment (EIA) procedures, monitoring and decommissioning of offshore platforms adopted by EU and non-EU countries along the Adriatic-Ionian seas was carried out in the framework of the Interreg offshore platforms in Adriatic-Ionian (ADRION) project HarmoNIA (Harmonization and networking for contaminant assessment in the Ionian and Adriatic Seas). The comparison of information provided by six ADRION countries and the application of a harmonized and integrated approach has highlighted specific challenges for managing offshore platform impacts emerged at ADRION level: (i) need of the same legislative level (the Offshore Protocol of Barcelona Convention is not ratified by all countries); (ii) set up of a task force of ADRION experts for discussing critical issues related to impacts of offshore platforms; (iii) harmonization, at the regional level, of EIA procedures, monitoring and decommissioning; (iv) need of an agreed and common list of recommended parameters to monitor in water, sediment and biota for the assessment of impacts due to platform installations and PFW discharges.
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Mastanzade, Nicat S., i Gökhan Yazici. "Dynamic Behavior and Optimization of Offshore Gravity Platforms". Journal of Offshore Mechanics and Arctic Engineering 127, nr 2 (17.11.2004): 130–34. http://dx.doi.org/10.1115/1.1894411.
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This paper presents the results of a dynamic investigation with the aim of determining both the optimal shape of an offshore gravity platform column and the required mass of the infill water. The natural frequency formulation of the structure with the added infill water mass, Er, was obtained by using Rayleigh’s method. Pontyagin’s maximum variational principle was used to define the shape of the column. An algorithm and a computer program were developed to obtain the numerical solution of the problem. Finally, a scaled model of the gravity platform was built and tested, in order to verify the results obtained from the analytical research and to determine the mass of the infill water.
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Maniscalco, Peggie, Rebecca Lane, Michelle Welke, John H. Mitchell i Lee Husting. "Decreased Rate of Back Injuries Through a Wellness Program for Offshore Petroleum Employees". Journal of Occupational and Environmental Medicine 41, nr 9 (wrzesień 1999): 813–20. http://dx.doi.org/10.1097/00043764-199909000-00014.
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Kalapinski, Erik J., i Kristjan A. Varnik. "Hydroacoustic survey of geotechnical activities for the Virginia offshore wind technical advancement program". Journal of the Acoustical Society of America 138, nr 3 (wrzesień 2015): 1929. http://dx.doi.org/10.1121/1.4934081.
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Kerdraon, Paul, Boris Horel, Patrick Bot, Adrien Letourneur i David Le Touzé. "Development of a 6-DOF Dynamic Velocity Prediction Program for offshore racing yachts". Ocean Engineering 212 (wrzesień 2020): 107668. http://dx.doi.org/10.1016/j.oceaneng.2020.107668.
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Reid, P. C. "RECENT CHANGES TO AUSTRALIA'S OFFSHORE PETROLEUM REGIME". APPEA Journal 26, nr 1 (1986): 102. http://dx.doi.org/10.1071/aj85011.
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Australia's offshore petroleum legislation is the product of a constitutional compromise enshrined in the Offshore Constitutional Settlement of 1979 between the Commonwealth and the States. Whilst it is current Federal Australian Labor Party policy to dismantle the Offshore Constitutional Settlement and re-assert exclusive Commonwealth jurisdiction from the low-water mark seawards, the Hawke Labor Government has been reluctant to implement this particular policy.A practical consequence of the Offshore Constitutional Settlement for the industry is that many offshore titles are now being split into two separate titles — one under State legislation within the three-mile territorial sea and the other under Commonwealth legislation for the Adjacent Area beyond the territorial sea. The Commonwealth proposal to introduce cash bonus bidding for highly prospective offshore exploration permits after being defeated in the Senate in the first half of 1985 was subsequently passed in November 1985.An APEA proposal for the introduction of a new form of title under the Petroleum (Submerged Lands) Act (PSLA) to protect currently non-commercial reserves has been adopted by legislation.Following the cash bidding debate the Commonwealth Minister has proposed a new set of guidelines for the award of offshore permits which will contain both a fixed dry-hole commitment plus a discretionary program in the event of technical encouragement.The paper concludes with some recommendations for establishing a more secure and certain system of title under the PSLA and to minimize the current administrative delays being experienced by industry. Finally it urges that the current level of consultation between Government and industry on matters of interest arising under the PSLA should be allowed to continue.