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Journal articles on the topic 'Mars (Offshore oil platform)'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Madon, Mazlan, and John Jong. "Geothermal Gradient And Heat Flow Maps Of Offshore Malaysia: Some Updates And Observations." Bulletin of the Geological Society of Malaysia 71 (May 31, 2021): 159–83. http://dx.doi.org/10.7186/bgsm71202114.

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An update of the geothermal gradient and heat flow maps for offshore Malaysia based on oil and gas industry data is long overdue. In this article we present an update based on available data and information compiled from PETRONAS and operator archives. More than 600 new datapoints calculated from bottom-hole temperature (BHT) data from oil and gas wells were added to the compilation, along with 165 datapoints from heat flow probe measurements at the seabed in the deep-water areas off Sarawak and Sabah. The heat flow probe surveys also provided direct measurements of seabed sediment thermal conductivity. For the calculation of heat flows from the BHT-based temperature gradients, empirical relationships between sediment thermal conductivity and burial depth were derived from thermal conductivity measurements of core samples in oil/gas wells (in the Malay Basin) and from ODP and IODP drillholes (as analogues for Sarawak and Sabah basins). The results of this study further enhanced our insights into the similarities and differences between the various basins and their relationships to tectonic settings. The Malay Basin has relatively high geothermal gradients (average ~47 °C/km). Higher gradients in the basin centre are attributed to crustal thinning due to extension. The Sarawak Basin has similar above-average geothermal gradients (~45 °C/km), whereas the Baram Delta area and the Sabah Shelf have considerably lower gradients (~29 to ~34 °C/km). These differences are attributed to the underlying tectonic settings; the Sarawak Shelf, like the Malay Basin, is underlain by an extensional terrane, whereas the Sabah Basin and Baram Delta east of the West Baram Line are underlain by a former collisional margin (between Dangerous Grounds rifted terrane and Sabah). The deep-water areas off Sarawak and Sabah (North Luconia and Sabah Platform) show relatively high geothermal gradients overall, averaging 80 °C/km in North Luconia and 87 °C/km in the Sabah Platform. The higher heat flows in the deep-water areas are consistent with the region being underlain by extended continental terrane of the South China Sea margin. From the thermal conductivity models established in this study, the average heat flows are: Malay Basin (92 mW/m2), Sarawak Shelf (95 mW/m2) and Sabah Shelf (79 mW/m2). In addition, the average heat flows for the deep-water areas are as follows: Sabah deep-water fold-thrust belt (66 mW/m2), Sabah Trough (42 mW/m2), Sabah Platform (63 mW/m2) and North Luconia (60 mW/m2).

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Balogun, Abdul-Lateef, Abdul-Nasir Matori, and Kelvin Wong Toh Kiak. "DEVELOPING AN EMERGENCY RESPONSE MODEL FOR OFFSHORE OIL SPILL DISASTER MANAGEMENT USING SPATIAL DECISION SUPPORT SYSTEM (SDSS)." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-3 (April 23, 2018): 21–27. http://dx.doi.org/10.5194/isprs-annals-iv-3-21-2018.

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Environmental resources face severe risks during offshore oil spill disasters and Geographic Information System (GIS) Environmental Sensitivity Index (ESI) maps are increasingly being used as response tools to minimize the huge impacts of these spills. However, ESI maps are generally unable to independently harmonize the diverse preferences of the multiple stakeholders’ involved in the response process, causing rancour and delay in response time. This paper’s Spatial Decision Support System (SDSS) utilizes the Analytic Hierarchy Process (AHP) model to perform tradeoffs in determining the most significant resources to be secured considering the limited resources and time available to perform the response operation. The AHP approach is used to aggregate the diverse preferences of the stakeholders and reach a consensus. These preferences, represented as priority weights, are incorporated in a GIS platform to generate Environmental sensitivity risk (ESR) maps. The ESR maps provide a common operational platform and consistent situational awareness for the multiple parties involved in the emergency response operation thereby minimizing discord among the response teams and saving the most valuable resources.

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Barile, Nadia B., Mariaspina Scopa, Sara Recchi, and Eliana Nerone. "Biomonitoring of coastal marine waters subject to anthropogenic use: development and application of the biosensor Mosselmonitor®." Ovidius University Annals of Chemistry 27, no. 2 (December 1, 2016): 81–86. http://dx.doi.org/10.1515/auoc-2016-0013.

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Abstract The overall objective of this study was to develop a biological early warning system (Mosselmonitor®) on offshore platform to detect critical environmental situations. The experiment was conducted on oil off-shore platform called Rospo Mare B. This structure is located in the area in front of Molise coast line (Italy, Adriatic Sea), characterized by a depth of about 77 m and a bathymetry between 65 and 80 m. The Mosselmonitor® works with eight mussels connected via specific sensors to PC for recording opening values of valves. A probe was installed inside the instrument to daily control of water pH, dissolved oxygen, salinity and temperature. Water samples are weekly analyzed for heavy metals, organochlorine pesticide and suspended matter. During the entire observation period, closure alarms were predominantly detected (99.9%) and a decrease of 65% in alarms maximum duration was recorded from the fifth week. During the first month, none changes in water physico-chemical parameters were observed so that affect the bivalves behavior. The only chemical parameter steadily detected in water was copper; its average concentrations were of 10 ppb. Detected alarms were not comparable to those recorded in the first month: this observation could be explained considering that mussels will be adapted to copper constant presence.

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Lemberger, Marcus, James Stockley, and Tim Gibbons. "Browse to Bonaparte stratigraphic evaluation." APPEA Journal 53, no. 2 (2013): 483. http://dx.doi.org/10.1071/aj12094.

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After an initial 2010 stratigraphic, depositional environment and facies determination study of 75 wells in the Browse Basin, TGS has pushed this high-resolution project north into the Bonaparte Basin area. The study incorporates a further 165 wells located across the Ashmore Platform, Vulcan Sub-basin, Londonderry High, Malita and Calder Grabens, Sahul and Flamingo synclines, Laminara and Flamingo highs, Sahul Platform, Troubadour Terrace, and offshore Petrel Sub-basin areas. This multi-basin project has combined all the selected relevant public data into one interpretation study and is delivered in an integrated environment—wells are standardised and sequences interpreted. Once depositional environment and facies are allocated, multi-element maps are produced showing how the basin environments change through time and structural evolution. Stratigraphic interpretation has determined 37 sequences and 32 associated facies maps. Both Browse Basin (140,000 km2) and Bonaparte Basin (270,000 km2) are relatively less explored and at different ages in their exploration life-cycle. Both have proved to be oil and gas bearing across numerous different stratigraphic ages with a wide range of trapping and reservoir methods. This study aims to further aid North West Shelf exploration by delineating, among other facets, the presence or otherwise of rocks with reservoir and seal potential and by identifying structural elements such as the Petrel Sub-basin salt diapirs. This regional well data stratigraphic approach has been used across all the UK and Norway continental shelf hydrocarbon provinces. TGS sees the Australian North West Shelf as a province where this approach will further assist sub-surface understanding, and hence exploration success.

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Piquet, Rosélia Périssé da Silva. "O lugar do regional na indústria do petróleo." Revista Brasileira de Estudos Urbanos e Regionais 14, no. 1 (May 31, 2012): 51. http://dx.doi.org/10.22296/2317-1529.2012v14n1p51.

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O presente texto tem o propósito de discutir uma questão candente do debate energético da atualidade: um país seria abençoado por dispor de ricas reservas de petróleo e gás ou as fartas rendas provenientes de sua exploração produziriam uma espécie de “maldição” por limitarem a expansão de outros setores produtivos? A avaliação dos impactos dessa indústria é complexa, por existirem profundas distinções entre os processos de mudança que é capaz de provocar no plano nacional ou nas áreas em que se localiza. O texto é centrado na análise das fases de exploração e produção, onde ocorrem os maiores investimentos e se registram os mais significativos efeitos multiplicadores dessa indústria, tendo como referência o caso brasileiro. Existindo ainda no Brasil a peculiaridade das principais ocorrências serem na plataforma continental marítima, com marcada concentração da produção na Bacia de Campos, os impactos regionais da indústria são analisados tomando-se o caso da região Norte Fluminense como base empírica de referência. Palavras-chave: indústria de petróleo; investimentos petrolíferos; impactos regionais; Norte Fluminense; efeitos multiplicadores. Abstract: This text aims to discuss a weighty issue of the current energy debate: having rich reserves of oil and gas would be a blessing for a country or the hefty revenues of the exploration of these resources would produce some kind of “curse” by limiting the expansion of other productive sectors? The evaluation of the impacts of this industry is complex for existing deep differences between the changing processes that they can be able to cause in a national level or in the areas they are located in. The text is focused in the phases of exploration and production, in which occur the major investments and are noticed the most significant multiplying effects of this industry, having the Brazilian case as reference. As Brazil has the peculiarity of having the main occurrences in the offshore continental platform, with stressed concentration of the production in Campos Bay, the regional impacts of the industry are analyzed having the case of the North of Rio de Janeiro State as an empirical database of reference. Keywords: oil industry; oil investments; regional impacts; North of Rio de Janeiro State; multiplying effects.

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Torres, Sarah Barrón, Luiz Bevilacqua, Fernando Pellon de Miranda, and Carlos Henrique Beisl. "DETECTION OF SEEPAGE SLICKS IN CANTARELL COMPLEX (GULF OF MEXICO) USING POLARIMETRIC SAR DATA OF RADARSAT-2." Revista Brasileira de Geofísica 36, no. 2 (July 4, 2018): 137. http://dx.doi.org/10.22564/rbgf.v36i2.928.

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ABSTRACT. The occurrence of oil seeps on the sea surface from active petroleum systems has been extensively documented by radar imaging using SAR (Synthetic Aperture Radar). Polarimetry is consolidating in the oil industry as a sophisticated technique for the study of marine seeps. The Cantarell Complex, located in the Gulf of Mexico, is currently the most prolific natural seep site in the world. This paper aims to add to the discussion on the physical properties of seepage slicks from full polarimetric data (quad-pol) from RADARSAT-2 satellite. The fact that the research was based on two images (ID#02 and ID#04) acquired at the same place and with the same mode of operation but with a time lapse between acquisitions and different incidence angles allowed to evaluate the influence of the imaging geometry on target signatures. To this end, samples of four classes (sea, offshore platform, oil and false targets) were collected. The data of the samples were afterwards shown in graphs and plotted in the classification plan of Cloude & Pottier – entropy (H) vs. alpha angle (¯α) – for backscattering mechanism analysis. Such elements made it possible to certify that (i) the sea is a Bragg-type surface regardless the incidence angle, (ii) platforms have double-bounce scattering, but small incidence angles are inadequate for their characterization, (iii) false targets (associated in ID#02 to regions of little wind) are moderately random/quasi deterministic surfaces, and (iv) oil behaves either as a Bragg (19.0◦–22.7◦ incidence angle range) or as a random/anisotropic surface (33.7◦–36.7◦ incidence angle range). Keywords: H-¯α diagram, incidence angle, radar imaging, marine seeps.RESUMO. A ocorrência de exsudações de óleo na superfície do mar a partir de sistemas petrolíferos ativos vem sendo extensivamente documentada por imageamento utilizando sistemas SAR (Synthetic Aperture Radar). A polarimetria está se consolidando na indústria do petróleo como uma técnica sofisticada para o estudo de seeps marinhos. O Complexo de Cantarell, situado no Golfo do México, é atualmente o local de exsudação natural de óleo mais prolífico do globo terrestre. Este trabalho visou contribuir com a discussão acerca das propriedades físicas de escapes de óleo a partir dos dados polarimétricos completos (quad-pol) do satélite RADARSAT-2. O fato da pesquisa valer-se de duas imagens (ID#02 e ID#04) adquiridas no mesmo local e modo de operação, mas com intervalo entre as aquisições e diferentes ângulos de incidência, possibilitou avaliar a influência da geometria de imageamento na assinatura dos alvos. Com esse propósito, foram geradas amostras de quatro classes (mar, plataforma, óleo e falso alvo), que tiveram os dados posteriormente relacionados em gráficos e no plano de classificação de Cloude & Pottier – entropia (H) vs. ângulo alfa (¯α) – para análise do mecanismo de espalhamento. Tais elementos permitiram atestar que (i) o mar é uma superfície do tipo Bragg independente do ângulo de incidência, (ii) as plataformas têm espalhamento double-bounce, mas baixos ângulos são inadequados para sua caracterização, (iii) falsos alvos (associados em ID#02 a regiões de baixo vento) são superfícies moderadamente aleatórias/quase determinísticas, e (iv) o óleo comporta-se ou como Bragg (19,0◦–22,7◦), ou como uma superfície aleatória/anisotrópica (33,7◦–36,7◦).Palavras-chave: Diagrama H-¯α, ângulo de incidência, imagem de radar, seeps marinhos.

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7

LIU, Hongbing, Guoming CHEN, Tao LYU, Hong LIN, Benrui ZHU, and Ao HUANG. "Wind-induced response of large offshore oil platform." Petroleum Exploration and Development 43, no. 4 (August 2016): 708–16. http://dx.doi.org/10.1016/s1876-3804(16)30083-0.

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8

Sage, Drew, Michael Bieganski, and Andrew Grant. "Lean offshore platform design." APPEA Journal 57, no. 2 (2017): 635. http://dx.doi.org/10.1071/aj16077.

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Current industry practices of prescriptive design and duplication of previous work on offshore oil and gas facilities have often caused relatively simple design requirements to be executed as large, maintenance-heavy, expensive platforms. The question of whether equipment is technically justified is rarely asked, and the potential benefits of minimised systems are rarely realised. By adopting lean design thinking, where all equipment must be technically justified as essential to operation before being included on the platform, the benefits are twofold. First, personal safety is improved because less equipment is required to be maintained offshore, meaning fewer offshore man-hours. Second, significant cost savings can be achieved because less offshore equipment means smaller platforms. This paper outlines the design, operating, manning and maintenance philosophies that form the basis for lean design thinking, and the effect this thinking has on both offshore man-hours and facility costs. Two case studies have been undertaken to evaluate the quantifiable differences between conventional platform design and lean platform design. Aker Solutions’ Lean Semi has been compared with a conventional semisubmersible platform to show that substructure weight savings of up to 30% are achievable; in addition, Aker Solutions’ Hybrid Compression Facility has been compared with a conventional compression platform to show that topsides weight savings of more than 50% are achievable.

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Valenti, Michael. "A Drier Way To Clean Turbines." Mechanical Engineering 120, no. 03 (March 1, 1998): 98–100. http://dx.doi.org/10.1115/1.1998-mar-7.

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A high-pressure injection system that needs less water to clean gas turbines than conventional methods can reduce equipment maintenance costs for aircraft, offshore platforms, and power plants. Gas Turbine Efficiency (GTE) in Jarfalla, Sweden, has developed a high-pressure injection system that cleans turbines using atomized droplets and needs 90 percent less liquid than previous methods. With this technique, the operators of offshore oil platforms, power plants, refineries, and aircraft in several countries are reducing the purchase costs of new fluids, the disposal costs of spent cleaning fluids, and maintenance downtime. In creating their washing system, designers considered the differences in cleaning aviation and stationary engines. The turbine-washing system is available in mobile versions for aircraft engines and permanently installed versions, for the off-line cleaning of stationary turbines. GTE also designed two models to serve the very small and very large turbines. The GTE 30 A services the small turbines, ranging from 0.5 to 10 megawatts, that are used in industrial, power-generation, marine, and test-cell applications as well as turboprop aircraft, turbofan craft, and helicopters.

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Ervina Efzan, Mohd Noor, and S. Kesahvanveraragu. "Review on Pipelines in Offshore Platform Processing System." Applied Mechanics and Materials 695 (November 2014): 684–87. http://dx.doi.org/10.4028/www.scientific.net/amm.695.684.

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Pipelines are essential for transporting energy utilities such as oil, natural gas and coal for the nation. Similarly, pipelines are the only medium installed at offshore region to convey oil, gas, chemicals and water. Currently, corrosion is being a major problem for offshore pipeline occurrences around the world. Hence, this paper discussed on the pipelines in offshore platform and the corrosion of corresponding pipeline materials.

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Gao, Qiang, and Hong Ye Zhao. "Design of Flare Gas Flow Measurement System on Offshore Oil Platform." Applied Mechanics and Materials 385-386 (August 2013): 460–63. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.460.

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Aiming at the problems of flare gas flow monitoring on offshore oil platform, a flare gas flow measurement system is designed. This system is integrated in the whole flare control system and reaches the effective monitoring of flare gas flow. Besides it adopts ultrasonic flow-meters for the more accurate flow-meter data and adopts hot-cap method for the realization of being installed without halting production. Results indicate that the design could offshore oil platform improve the efficiency and safety of production in offshore oil platform.

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龚, 华麟. "Modeling Analysis of Micro Grid of Offshore Oil Platform." Journal of Electrical Engineering 04, no. 04 (2016): 187–94. http://dx.doi.org/10.12677/jee.2016.44024.

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Omogoroye, O. O., and S. A. Oke. "A safety control model for an offshore oil platform." Disaster Prevention and Management: An International Journal 16, no. 4 (September 4, 2007): 588–610. http://dx.doi.org/10.1108/09653560710817066.

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Rundmo, Torbjørn, and Lennart Sjöberg. "Employee risk perception related to offshore oil platform movements." Safety Science 24, no. 3 (December 1996): 211–27. http://dx.doi.org/10.1016/s0925-7535(97)00039-8.

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Yong, Gao. "Study on Vibration of Offshore Oil Field WHPA Platform." Science Discovery 7, no. 5 (2019): 278. http://dx.doi.org/10.11648/j.sd.20190705.14.

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Gavrilina, Elena A. "LEGAL STATUS OF AN OFFSHORE FIXED PLATFORM FOR OFFSHORE OIL AND GAS PRODUCTION." ENERGY LAW FORUM 2 (July 18, 2017): 14–18. http://dx.doi.org/10.18572/2312-4350-2017-2-14-18.

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17

Yan, Qing Zhi, Zhan Zhang, Liang Cui, and Yan Hua Wang. "Structural Optimization of Offshore Jacket Platform Based on ANSYS." Advanced Materials Research 163-167 (December 2010): 3029–33. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3029.

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Offshore Jacket Platform is a very important infrastructure in the offshore oil exploration and exploitation. In order to make it more economical, designers should do Structural Optimization to it. This paper do Structural Optimization to Offshore Jacket Platform, and provide reference for the using of ANSYS in the Structural Optimization of Offshore Jacket Platform.

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Wang, Qi, Jing Zhang, and Fenzhen Su. "Offshore Platform Extraction Using RadarSat-2 SAR Imagery: A Two-Parameter CFAR Method Based on Maximum Entropy." Entropy 21, no. 6 (June 2, 2019): 556. http://dx.doi.org/10.3390/e21060556.

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The ability to determine the number and location of offshore platforms is of great significance for offshore oil spill monitoring and offshore oil and gas development. Considering the problem that the detection threshold parameters of the two-parameter constant false alarm rate (CFAR) algorithm require manual and repeated adjustment of the during the extraction of offshore platform targets, this paper proposes a two-parameter CFAR target detection method based on maximum entropy based on information entropy theory. First, a series of threshold parameters are obtained using the two-parameter CFAR algorithm for target detection. Then, according to the maximum entropy principle, the optimal threshold is estimated to obtain the target detection results of the possible offshore platform. Finally, the neighborhood analysis method is used to eliminate false alarm targets such as ships, and the final target of the offshore platform is obtained. In this study, we conducted offshore platform extraction experiments and an accuracy evaluation using data from the Pearl River Estuary Basin of the South China Sea. The results show that the proposed method for platform extraction achieves an accuracy rate of 97.5% and obtains the ideal offshore platform distribution information. Thus, the proposed method can objectively obtain the optimal target detection threshold parameters, greatly reduce the influence of subjective parameter setting on the extraction results during the target detection process and effectively extract offshore platform targets.

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Dunichkin, Ilya Vladimirovich, and Pavel Kirillovich Kalashnikov. "Accounting for Climate and Typology of Reuse of Offshore Structures with a Change of Function." Applied Mechanics and Materials 713-715 (January 2015): 205–8. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.205.

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The new typology of marine facilities deals with the problem of offshore oil and gas fields’ infrastructure usage after their elimination. The influence of climate on offshore structures and the authorities’ requirements in the matter of natural environment protection create huge costs for oil and gas companies, if the abandoned platform will be at sea. The concept of oil platform reconstruction with the change of functionhas allowedto create theoretical model of offshore structure and to identify the most relevant functions for the reconstructed objects. It has led to the following basic groups of architectural typology.

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Ding, Ning. "Vibration Analysis of Offshore Oil and Gas Platform Mechanical Equipment." Journal of Coastal Research 106, sp1 (July 10, 2020): 633. http://dx.doi.org/10.2112/si106-143.1.

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do Val, C. G. F., J. A. M. Silva, and S. Oliveira Jr. "Deep Water Cooled ORC for Offshore Floating Oil Platform Applications." International Journal of Thermodynamics 20, no. 4 (November 29, 2017): 229–37. http://dx.doi.org/10.5541/eoguijt.359499.

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Wang, W., and H. B. A. Majid. "Reliability data analysis and modelling of offshore oil platform plant." Journal of Quality in Maintenance Engineering 6, no. 4 (December 2000): 287–95. http://dx.doi.org/10.1108/13552510010346824.

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23

Matori, Abdul Nasir, Amir Sharifuddin Ab Latip, Indra Sati Hamonangan Harahap, and Daniele Perissin. "Deformation Monitoring of Offshore Platform Using the Persistent Scatterer Interferometry Technique." Applied Mechanics and Materials 567 (June 2014): 325–30. http://dx.doi.org/10.4028/www.scientific.net/amm.567.325.

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One of the problems that occur during the exploitation of oil and gas is offshore platform deformation. It could occur due to the environments load as well as the extraction of oil and gas itself under the seabed that caused reservoir compaction. Offshore platform deformation may affect the platform structural integrity and cause loss of production, thus it is very important to monitor its occurrences. Offshore platform deformation monitoring has been carried out using the satellite-based Global Positioning System (GPS) technique until recently. Even though the technique has proven its worth for the job, it has however some limitations, the most prominent is it could only monitor selected portion of the offshore platform. Thus, this study presents an attempt of detecting and monitoring the deformation phenomenon of an offshore platform using the Persistent Scatterer Interferometry (PSI) technique. This technique would overcome some of the limitations of the previous (GPS) deformation monitoring technique. A total of 11 high resolution TerraSAR-X images (i.e., 3 m in StripMap mode) were acquired from Aug, 2012 to Apr, 2013 for this purpose, while one of the offshore platforms in South China Sea is being used as monitored platform. Preliminary results showed that detail and sensitive deformations could be detected by this technique. In addition, analysis results in the form of mean deformation velocity map and displacement time series would allow us to further understand the behaviour of offshore platform deformation.

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Zhang, Anan, Hong Zhang, Meysam Qadrdan, Wei Yang, Xiaolong Jin, and Jianzhong Wu. "Optimal Planning of Integrated Energy Systems for Offshore Oil Extraction and Processing Platforms." Energies 12, no. 4 (February 24, 2019): 756. http://dx.doi.org/10.3390/en12040756.

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With the introduction of new technologies, such as waste heat recovery units (WHRU), associated gas utilization, the energy flow coupling relationship is further deepened within the energy system of the offshore oil and gas production platform. Besides, the energy system is closely linked with the oil and gas production system, and a closed-loop relationship between energy flow and material flow can be revealed. Uncertainties of energy supply and production process may lead to system-wide fluctuations, which threaten the stable operation of the platform. Therefore, an optimal planning model of integrated energy system for offshore oil and gas production platform is proposed in this paper. Firstly, a generalized energy and material flow model is proposed, three matrixes are defined based on laws of thermodynamics, including energy matrix, process matrix and feedback matrix. Secondly, the energy-material conversion relationship between the energy system and production system of a typical offshore oil and gas platform is quantitatively described, together with the coupling between the input and output of the two systems. Thirdly, considering the energy-material balance constraints and the uncertainties of production system, a multi-objective stochastic planning model for the offshore integrated energy system is established, which takes economics and environmental protection into consideration. A Monte Carlo simulation-based NSGA-II algorithm is proposed to solve the model. Finally, the validity and feasibility of the proposed methodology are demonstrated through an offshore oil and gas platform in Bohai, China. Compared with the traditional planning method, the total cost and CO2 emissions of the proposed method are reduced by 18.9% and 17.3%, respectively.

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Lee Sørensen, Paw, Ove Sørensen, and Poul Linneberg. "17.02: Strengthening of oil platform with submerged cables: Strengthening of offshore oil production platform with prefabricated submerged cables." ce/papers 1, no. 2-3 (September 2017): 4303–12. http://dx.doi.org/10.1002/cepa.489.

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Zhang, Jing, Qi Wang, and Fenzhen Su. "Automatic Extraction of Offshore Platforms in Single SAR Images Based on a Dual-Step-Modified Model." Sensors 19, no. 2 (January 9, 2019): 231. http://dx.doi.org/10.3390/s19020231.

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The quantity and location of offshore platforms are of great significance for marine oil spill monitoring and offshore oil-gas development. In the past, multiphase medium- and low-resolution optical or radar images have been used to remove the interference of ship targets based on the static position of a platform to extract the offshore platform, resulting in large demands and high image data costs. According to the difference in shape between offshore platforms (not elongated) and ships (elongated shapes) in SAR (synthetic aperture radar) images, this paper proposes an automatic extraction method for offshore platforms in single SAR images based on a dual-step-modified model. First, the two-parameter CFAR (constant false alarm rate) algorithm was used to detect the possible offshore platform targets; then, the Hough transform was introduced to detect and eliminate ship targets with linear structures. Finally, the final offshore platform was obtained. Experiments were carried out in four study areas in the Beibu Gulf basin and the Pearl River estuary basin in the northern South China Sea. The results show that the method has a good extraction effect in the above research area, and the extraction accuracy rate of offshore platforms is 86.75%. A single SAR image can obtain satisfactory extraction results, which greatly saves on image data cost.

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Zeldovich, Lina. "Old Oil Rigs Never Die." Mechanical Engineering 141, no. 11 (November 1, 2019): 36–41. http://dx.doi.org/10.1115/1.2019-nov2.

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Abstract Offshore oil and gas platforms are among the largest structures humanity has ever built. There are more than 7,500 of them towering up from seas all over the world, according to some recent estimates. As wells dry up and pumping equipment wears down, those structures are likely to become obsolete in the upcoming decades. Those oil wells will have be decommissioned and capped off and the platforms taken down. But taking down an offshore oil platform and the tower that supports it is no simple assignment. It is a massive engineering project that requires state-of-the-art equipment.

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Yuan, Shi Bao. "Programming Model for Offshore Platforms Site Selection." Advanced Materials Research 361-363 (October 2011): 360–63. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.360.

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The construction of offshore oil and gas development platform is a system engineering with enormous cost, in order to make rational use of limited resources to achieve maximum economic benefits, based on the industrial site selection problem and with the analyses of decision variable in the process of offshore platforms site selection decision-making, Objective function and the Constraint condition a Bi-level Programming Model Of offshore platforms Site selection with a stochastic oil price are set up. According to the characteristics of the model, an adaptive genetic algorithm to solve the problems and a tabu search algorithm to solve the lower planning are designed to improve the Optimize efficiency and effect of the model. With the Optimize of the process, the problems such as Platform deliverability of the process of offshore oil platforms site, Cost, Optimal distribution of resources and so on are successfully resolved.

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Lang, Yin Hai, Fang Fang Cheng, and Nan Nan Wang. "Fuzzy Comprehensive Evaluation of Oil Spills Pollution Level for Offshore Platform." Applied Mechanics and Materials 71-78 (July 2011): 3012–15. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3012.

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Oil pollution is considered as one of the pollutants that are harmful to the marine environment. An approach based on both analytic hierarchy process (AHP) and second order fuzzy comprehensive evaluation (FCE) is firstly presented to evaluate oil spill pollution level for offshore platform. The results show that the proposed assessment method is accurate for oil spills, and the model provides a certain technical support for the emergency decision-making department to take the emergency measure.

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Boswell, L. F., V. N. Alekhin, and A. M. Budarin. "The jack-up platform for offshore oil and gas exploration overview." Russian Journal of Construction Science and Technology 1, no. 2 (2017): 5–12. http://dx.doi.org/10.15826/rjcst.2017.2.001.

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KUMAR, SAURABH, RAJIV DANDOTIYA, RAJESH KUMAR, and UDAY KUMAR. "INSPECTION FREQUENCY OPTIMIZATION MODEL FOR DEGRADING FLOWLINES ON AN OFFSHORE PLATFORM." International Journal of Reliability, Quality and Safety Engineering 15, no. 02 (April 2008): 167–80. http://dx.doi.org/10.1142/s0218539308003015.

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Many offshore oil and gas installations in the North Sea are approaching the end of their designed lifetimes. Technological improvements and higher oil prices have developed favorable conditions for more oil recovery from these existing installations. However, in most cases, an extended oil production period does not justify investment in new installations. Therefore cost-effective maintenance of the existing platform infrastructure is becoming very important. In this paper, an inspection frequency optimization model has been developed which can be used effectively by the inspection and maintenance personnel in the industry to estimate the number of inspections/optimum preventive maintenance time required for a degrading component at any age or interval in its lifecycle at a minimum total maintenance cost. The model can help in planning inspections and maintenance intervals for different components of the platform infrastructure. The model has been validated by a case study performed on flowlines installed on the top side of an offshore oil and gas platform in the North Sea. Reliability analysis has been carried out to arrive at the best inspection frequency for the flowline segments under study.

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Riboldi, Luca, Steve Völler, Magnus Korpås, and Lars O. Nord. "An Integrated Assessment of the Environmental and Economic Impact of Offshore Oil Platform Electrification." Energies 12, no. 11 (June 2, 2019): 2114. http://dx.doi.org/10.3390/en12112114.

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Electrification of offshore oil and gas installations on the Norwegian continental shelf is one of several options to decrease the CO2 emitted from these installations. However, there is an ongoing debate regarding how the increased electricity consumption will influence the CO2 emissions in the power market, both in the short-run and in the long-run. This paper aims to address the issue and investigate the feasibility of the electrification of a large offshore area in the North Sea in comparison to standard concepts to supply energy offshore. A novel integrated model was developed for the purpose that includes and combines a process model of the offshore power generation units and a model of the European power system. The integration of the two models allows to simultaneously simulate the behavior of the offshore energy conversion systems and the effect of electrification on the onshore power system. The outcomes of the analysis show that the environmental performance of electrification is strongly affected by the selected approach to quantify the CO2 emissions associated with power from shore. Taking standard methods to supply offshore energy as basis for comparison, the marginal effect of electrification would result in increased CO2 emissions (+40%), while the average effect would entail large reductions in CO2 emissions (−48% to −90%), the extent of which depends on the geographical scope selected. An analysis on the economics of electrification indicates that its economic viability would be challenging and would not be favoured by a strong European commitment towards environmental policies since the expected increase of power price will outbalance the gains for the reduced emission costs.

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Jafarov, Elkhan. "Causes and Consequences of Fire Emergencies on Oil and Gas Platforms." Revista Gestão Inovação e Tecnologias 11, no. 2 (June 5, 2021): 1253–58. http://dx.doi.org/10.47059/revistageintec.v11i2.1753.

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This study presents an analysis of the causes and consequences of the largest offshore platform accidents associated with oil and gas production. The research on this problem allows improving the reliability of risk assessment associated with offshore oil and gas production, as well as developing methods for improving the fire safety of oil and gas platforms under various operating conditions.

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Basile, Vincenzo, and Roberto Vona. "Sustainable and Circular Business Model for Oil & Gas Offshore Platform Decommissioning." International Journal of Business and Management 16, no. 10 (August 5, 2021): 1. http://dx.doi.org/10.5539/ijbm.v16n10p1.

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In recent years, the problem of decommissioning and recycling offshore platforms has become an increasingly complex issue for environmental, socio-economic and safety reasons. The decommissioning or sustainable conversion of offshore platforms in the broader context of the circular economy will lead to the acquisition of new technologies and increasingly change values and behaviours towards sustainability in line with new business models. It will also be a complex process as it will require new skills, transformative technologies and the ability to engage all stakeholders. The objective of this study are the Multi-Use Platforms at Sea (MUPS), which represents an interesting solution for the creation of marine areas where different economic and recreational activities can be launched and developed according to the needs of environmental protection (e.g. renewable energies, shellfish farming, decarbonization plants, tourism and recreation).The main research question was the following: "What is the sustainable and circular business model in the literature that can be best used to support the transformation and/or decommissioning of oil platforms?" In addition, "How can the above business model be applied to the case of a platform considering social and environmental impacts?" In the first phase, the research activity focused on a thorough review of the literature on offshore platform decommissioning and sustainable and circular business models. This allowed us to access the Sustainable Circular Business Model Canvas (SCBMC), a conceptual tool that presents a holistic view of the different multi-purpose management options and their social and environmental impacts. This tool could help oil and gas operators (and related industries) address platform mining issues. The methodology adopted was a qualitative analysis. To test the SCBMC, an empirical study was conducted with semi-structured questionnaires given to several stakeholders (including experts, professionals and academics) in the international decommissioning industry. In addition, broader desk research on global offshore case studies was conducted using information sources and secondary sources. In future research, it may be useful to compare the SCBMC with the latest mainstream Circular Business Model (CBM) issues to better assess and quantify the environmental and social impacts of offshore platform decommissioning and to broaden the debate on this topic, considering economic indicators.

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Zeng, Fan Chao, Jian Jun Weng, Yang Zhou, and Zhi Xin Guo. "Study on the Safe Distance between Offshore Oil and Gas Fixed Platform and Ship Customary Routes." Advanced Materials Research 1030-1032 (September 2014): 2296–300. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.2296.

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With an increasing number of the offshore oil and gas fixed platforms, the traffic environment is becoming more complicated, which will have a negative impact on the safety of both platforms and ships around. Considering the operation method and safety of the offshore oil and gas fixed platform, and the ship’s motion when being not under command, the safe distance between the platform and the ships’ customary routes is determined according to the big and frequent ship type sailing in the routes. The safe distance calculation result provides a basis for both the site selection and the distance keeping for ships passing by the platform and the water around.

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Yu, Yanqun, Xiaoguang Huang, and Zhiming Yin. "Safety evaluation of LD27-2 WHPB platform based on rod pumping." Journal of Petroleum Exploration and Production Technology 10, no. 8 (June 16, 2020): 3983–91. http://dx.doi.org/10.1007/s13202-020-00928-y.

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Abstract The development of heavy oil with high efficiency is a worldwide difficulty for offshore oil field. The technology of rod pumping provides a possible effective way for offshore heavy oil thermal recovery, but the safety of working platform is the prerequisite for the implementation of this new technology. In this paper, the mechanical model of LD27-2 WHPB platform is established, and the safety performance of the platform under hydraulic pumping unit (HPU) load is evaluated. The distribution of the combined HPU load accords with the classical probability model. When the HPUs are all synchronous, the combined load reaches its maximum. The finite element-based platform safety analysis under the extreme condition is carried out. Under the combined action of wave current, wind load and the extreme HPU load, the maximum stress of the jacket is 83.2 MPa, and the safety coefficient is 4.33, indicating the overall strength of LD27-2 WHPB platform meets the safety requirement.

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Vaganov, Yu V., A. V. Kustyshev, V. G. Kuznetsov, G. A. Kulyabin, V. V. Semenov, and J. S. Popova. "REPAIR OF OIL AND GAS WELLS ON MARITIME HYDROTECHNICAL FACILITIES." Oil and Gas Studies, no. 4 (September 1, 2016): 14–18. http://dx.doi.org/10.31660/0445-0108-2016-4-14-18.

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In the article the methods of well workover realization within offshore hydro technical facilities are considered. The necessity of application of a compact, small-sized surface equipment allowing well work over without tubing strings ret rievalin conditions of limited technological space on an offshore platform is justified. Herewith, standard methods of technical well workovers with the help of wire line technique do not meet the necessary requirements because of complicated horizontal and directional wells profiles. On this base, the authors suggest the well work over realization with the use of coiled tubing technology adapted to offshore hydro technical facility conditions.

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Fang, Jian, Qing Hua Yu, and Lu Xu. "The Underwater Project Management in 'Dong Fang' Offshore Oil Engineering." Applied Mechanics and Materials 508 (January 2014): 125–28. http://dx.doi.org/10.4028/www.scientific.net/amm.508.125.

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CNOOC laid offshore oil and natural gas pipelines for offshore drilling platforms. The engineering included laying the pipelines from offshore drilling platform to landing zone, laying the pipelines between two platforms, and installing vertical pipes for platforms. Aiming at the characteristics in the diving project management, this paper analyzes and evaluates the difficulties and risks of underwater work, puts forward the corresponding safety managements. These measures ensure the underwater operations safely and smoothly. The engineering lasts 195 days, uses 160 diving equipments, and dives 282 person-times. The total diving time is 17900 minutes, and the maximum diving depth is 70 meters.

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Chen, Tao, and Lin Wang. "Study on fire risk assessment of offshore platforms." E3S Web of Conferences 261 (2021): 03034. http://dx.doi.org/10.1051/e3sconf/202126103034.

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As a modern infrastructure for offshore oil and gas resources development, offshore platforms have many advantages, such as high efficiency, concentration, flexibility, and repeatability. At the same time, its upper module environment is bad, the equipment is numerous, has the very big risk. In case of fire and explosion and other accidents, it is difficult to get timely rescue. Therefore, fire risk assessment for offshore platform is very necessary. This paper focuses on the research results in the field of fire risk assessment of offshore platforms at home and abroad, points out the shortcomings of current research, and provides reference for risk reduction and effective prevention of offshore platform operations.

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Zawawi, Noor Amila Wan Abdullah, Na Kai Lun, and M. S. Liew. "Development of Platform Selection Tool for Offshore Decommissioning in Malaysia." Applied Mechanics and Materials 567 (June 2014): 222–27. http://dx.doi.org/10.4028/www.scientific.net/amm.567.222.

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Decommissioning of offshore structures is not a novel issue in the oil and gas industry. Malaysia is now dealing with a fleet of ageing platforms slated to be decommissioned. There are several alternatives of decommissioning such as “complete removal” and conversion to artificial reefs; “partial removal”, “remote reefing” and “topple in-situ”. Given the list of options, the decision to undertake the best option is challenging as the current method of comparative Best Practicable Environmental Option (BPEO) assessment is only implemented at the end of platform’s life. Therefore, the main goal is to develop a management decision making tool which is incorporated throughout the life cycle of an oil field. Expert elicitation is conducted to verify the relevant decommissioning criteria. The criteria were then ranked accordingly through calculation of Relative Importance Index (RII), and a conceptual system is established to complement the existing asset management system. In summary, this study could benefit the knowledge of offshore decommissioning planning through prioritization of decommissioning criteria.

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Sundaram, Jae. "OFFSHORE OIL POLLUTION DAMAGE: IN PURSUIT OF A UNIFORM INTERNATIONAL CIVIL LIABILITY REGIME." Denning Law Journal 28 (November 15, 2016): 66–108. http://dx.doi.org/10.5750/dlj.v28i0.1277.

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A significant amount of marine oil pollution is vessel-source with another being non-vessel-source originating from offshore oil platform operations. The world has witnessed a number of oil spill disasters since the 1950s including the Deepwater Horizon incident in the United States, the Montara Wellhead Platform in Australia and the continuing oil spill incidents in the Niger Delta, Nigeria. Technological advances mean that offshore operators now venture further out from coastlines to explore for, and exploit hydrocarbon reserves, thus increasing the crude oil output, and also the possibility of oil pollution incidents from offshore platforms. The International Convention on Civil Liability for Oil Pollution 1969 and the International Convention on the Establishment of an International Fund for Oil Pollution Damage 1971 were developed under the leadership of the International Maritime Organization in response to the increasing incidents of vessel-source oil pollution of the marine environment. Since the entry into force of these Conventions the membership has increased and the incidents of vessel-source oil pollution reduced. Efforts made by the Comité Maritime International (CMI), as early as in 1977, to develop a uniform civil liability convention for claims arising from offshore operations did not come to fruition, and very little progress has been made in finding a solution. Currently, there is no uniform international civil liability regime in place for oil pollution compensation claims arising for damages caused by offshore operations. This article explores the reasons behind the lack of a coherent legal framework to process civil liability claims arising from offshore oil spill incidents, especially when a comprehensive international regulation exists to govern vessel-source and other related forms of marine oil pollution. It argues that the lack of leadership to find a solution is proving to be highly damaging and that there is a strong case and an urgent need to establish a uniform international offshore oil spill liability regime. The article looks at existing regimes, both regional and national, as a way forward to develop an international regime for oil pollution compensation for damages arising from offshore activities.

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ROSS, J. A. S., G. D. HENDERSON, and R. M. HOWIE. "Oxygen consumption and ventilation during simulated escape from an offshore oil platform." Ergonomics 40, no. 3 (March 1997): 281–92. http://dx.doi.org/10.1080/001401397188152.

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Lakhal, Salem Y., M. I. Khan, and M. Rafiqul Islam. "An “Olympic” framework for a green decommissioning of an offshore oil platform." Ocean & Coastal Management 52, no. 2 (February 2009): 113–23. http://dx.doi.org/10.1016/j.ocecoaman.2008.10.007.

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Song, Yu, Jin Yang, Renjun Xie, and Yi Wu. "Dynamic positioning model of offshore oil drilling platform based on OIPSO algorithm." Future Generation Computer Systems 124 (November 2021): 168–73. http://dx.doi.org/10.1016/j.future.2021.05.003.

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Nouri, Saliha, Zouhair Hafsia, Salah Mahmoud Boulaaras, Ali Allahem, Salem Alkhalaf, and Aldo Munoz Vazquez. "Three-Dimensional Simulations of Offshore Oil Platform in Square and Diamond Arrangements." Advances in Mathematical Physics 2021 (March 2, 2021): 1–8. http://dx.doi.org/10.1155/2021/5578391.

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The interaction of the solitary wave with an oil platform composed of four vertical circular cylinders is investigated for two attack angle of the solitary wave β = 0 ° (square arrangement) and β = 45 ° (diamond arrangement). The solitary wave is generated using an internal source line as proposed by Hafsia et al. (2009). This generation method is extended to three-dimensional wave flow and is integrated into the PHOENICS code. The volume of fluid approach is used to capture the free surface evolution. The present model is validated in the case of a solitary wave propagating on a flat bottom for H / h = 0.25 where H is the wave height and h is the water depth. Compared to the analytical solution, the pseudowavelength and the wave crest are well reproduced. For a solitary wave interacting with square and diamond cylinders, the simulated results show that the maximum run-ups are well reproduced. For the diamond arrangements, the diffraction process seems to not affect the maximum run-ups, which approached the isolated cylinder. For the square arrangement, the shielding effect leads to a maximum wave force more pronounced for the upstream cylinder array.

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Zhang, Sheng Qiang, Hui Chi Zhang, Mo Lin Li, and Wei Xu. "Analysis and Preventive Measures of Offshore Steel Structure Welding Crack." Advanced Materials Research 945-949 (June 2014): 1254–57. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.1254.

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In recent years, offshore oil & gas industry developed rapidly. Offshore steel structure is the support structure for offshore drilling and production platform, and its welding quality is particularly important in fabrication. This paper aims at the typical welding crack of offshore steel structure, through investigations and experimental analysis, considering the application characteristics of offshore steel structure and site issues, analysis the root causes of welding crack and give the improvement and prevention measures.

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Zhang, Shi Liang, and Jin Yan. "Online Measurement and Quick Replacement of Pipeline Segments in an Offshore Platform." Advanced Materials Research 261-263 (May 2011): 1406–9. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.1406.

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Due to the effect of deterioration and corrosion, large amounts of oil and gas pipeline segments need to be replaced in offshore platforms every year. By using traditional reconstruct method, it needs to stop production in offshore platform firstly, then follows insulation, backout, baiting, jointing, installation, pressure test for tightness, etc. This process will take a long time and much work, and it will greatly influence the regular manufacture of oil and gas. In this work, a new method is introduced that oil and gas pipeline segments are replaced without stopping production. The technology includes precisely measuring geometry dimension of the oil and gas pipeline segments to be replaced, making prefabricate replacement segments exactly offline, and replacing the pipeline segments on site in a speedy and safety way. Last, an engineering applications case is given to show the whole detail process. It proves that the technology not only makes great progress in pipeline reconstruction, but also results in good social and economic benefits.

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Roni Sahroni, Taufik. "Modeling and Simulation of Offshore Wind Power Platform for 5 MW Baseline NREL Turbine." Scientific World Journal 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/819384.

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This paper presents the modeling and simulation of offshore wind power platform for oil and gas companies. Wind energy has become the fastest growing renewable energy in the world and major gains in terms of energy generation are achievable when turbines are moved offshore. The objective of this project is to propose new design of an offshore wind power platform. Offshore wind turbine (OWT) is composed of three main structures comprising the rotor/blades, the tower nacelle, and the supporting structure. The modeling analysis was focused on the nacelle and supporting structure. The completed final design was analyzed using finite element modeling tool ANSYS to obtain the structure’s response towards loading conditions and to ensure it complies with guidelines laid out by classification authority Det Norske Veritas. As a result, a new model of the offshore wind power platform for 5 MW Baseline NREL turbine was proposed.

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Yu, Jianxing, Zhenmian Li, Yang Yu, Shuai Hao, Yiqin Fu, Yupeng Cui, Lixin Xu, and Han Wu. "Design and Performance Assessment of Multi-Use Offshore Tension Leg Platform Equipped with an Embedded Wave Energy Converter System." Energies 13, no. 15 (August 2, 2020): 3991. http://dx.doi.org/10.3390/en13153991.

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In this study, a new multi-use offshore tension leg platform (TLP) was designed for wave energy production through an embedded wave energy converter (EWEC) system. The proposed EWEC system consists of four built-in tuned liquid column dampers for absorbing the hull motion energy and eight Wells turbines as the power take-off devices. A multifold nonlinear analytical model of this multibody system was developed considering the hydrodynamics of the TLP-EWEC system during large motions and the aerohydrodynamics of the chamber-turbine groups. A comprehensive assessment, including an evaluation of motion responses and preliminary generating capacity, was performed for different wave-load directions using the numerical time integration method. The results indicated that the multi-use platform can generate a considerable amount of turbine power for the offshore platform energy mix as well as serve for offshore oil and gas production in the target oil fields. Such additional benefits and profitability were proven effective and worthy for further exploration and practical application.

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Huynh, Tin Trung, and Vinh Trong Bui. "Application of quantitative risk assessment on offshore oil & gas industry." Science and Technology Development Journal 17, no. 3 (September 30, 2014): 62–68. http://dx.doi.org/10.32508/stdj.v17i3.1476.

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Production of Oil & Gas in offshore involves some of the most ambitious engineering projects of the modern world, is a prime source of revenue for many countries. It is also involved risks of major accidents which have been demonstrated by disaster on the UK production platform Piper Alpha. Major accidents represent the ultimate, most disastrous way in which an offshore engineering project can go wrong. Accidents cause death, suffering, environmental pollution and disruption of business. To ensure all risks identified and controlled, risk management approaches need applying. This paper discusses the application of quantitative risk assessment approaches and its importance throughout the entire offshore installation.

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