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Kuwait
Marchenko imaging assisted by vertical seismic profiling data for land seismic data in the Middle East
Cheng, Liwei (Colorado School of Mines, ExxonMobil Technology and Engineering Company) | Tura, Ali (Colorado School of Mines) | Simmons, James (Colorado School of Mines) | Snieder, Roel (Colorado School of Mines) | Angelov, Petar Vladov (Kuwait Oil Company, Qatar Energy) | Narhari Srinivasa, Rao (Kuwait Oil Company) | Akther, Shamima (Kuwait Oil Company)
ABSTRACT Attenuating interference from internal multiples has challenged seismic data imaging in the Middle East basins. The challenge results from the strong short-period internal multiples that exhibit nearly indistinguishable characteristics from the primaries reflected from the underlying reservoirs due to predominantly horizontal strata and occasional low-relief structures, as indicated in the Jurassic formations in Kuwait. To address the internal-multiple issues, multiple prediction followed by adaptive subtraction is the most common approach in the industry. However, due to the similarities between primaries and multiples, applying adaptive subtraction poses a high risk of primary-amplitude damage, preventing quantitative seismic data interpretation. Therefore, we examine the Marchenko method that retrieves Green’s functions from surface seismic data for target-oriented imaging without applying adaptive subtraction. Marchenko imaging has produced promising results on several offshore seismic data sets, but an onshore application is still needed. To better understand the effects of internal multiples and implement Marchenko imaging, we perform integrated analysis through well-log, vertical seismic profiling (VSP), and seismic data from a hydrocarbon field in Kuwait. In addition, we use VSP data to cross-check the retrieved Green’s functions and estimate the scaling factor of the Marchenko method. The results indicate that (1) the poor imaging at the center of the field is due to the destructive interference of internal multiples, (2) the reverberation of internal multiples between the evaporite formations of the overburden is the most likely candidate that affects the seismic images of the Jurassic reservoirs, (3) the retrieved Green’s functions conform to the recorded Green’s functions from VSP data, and (4) Marchenko imaging provides a means to improve the seismic images of the Jurassic formations in Kuwait.
Max 2 page abstract + 1 figure, single column Abstracts should include sufficient details for the committee to judge the quality of the submitted work. Abstracts should be a minimum of 1 page, text plus 1 figure, with a maximum of 2 pages. Abstracts should be on 8.5 x 11 inch paper size, text in Roman font, and include both text and figures. Title should be one or two lines, at the top of the page, in bold font, and size 12 point. Authors should be listed in Roman italic font, size 10 point, and located just below the title. All text must stay 1 inch clear of the margins of the page. Submissions should be in Adobe Acrobat PDF format.
A Successful Acid Fracturing Treatment in Asphaltene Problematic Reservoir, Burgan Oilfield Kuwait
Al-Shammari, A. (Kuwait Oil Company, Kuwait) | Sinha, S. (Kuwait Oil Company, Kuwait) | Sheikh, B. (NAPESCO, Kuwait) | Youssef, A. (NAPESCO, Kuwait) | Jimenez, C. (Kuwait Oil Company, Kuwait) | Al-Mahmeed, F. (Kuwait Oil Company, Kuwait) | Al-Shamali, A. (Kuwait Oil Company, Kuwait)
Abstract The Burgan Marrat Reservoir is a challenging high-pressure, high-temperature carbonate oil reservoir dating back to the Jurassic age. This specific reservoir within the Burgan Field yields light oil, but it has a significant issue with Asphaltene deposition in the wellbore. Additionally, its well productivity is hampered by low matrix permeability. Addressing these challenges is crucial, and a successful acid fracturing process can not only enhance well productivity but also address Asphaltene-related problems. This study delves into a comprehensive methodology that was employed. The focus of well selection was on ensuring good well integrity and maintaining a considerable distance from the oil-water contact (OWC). The approach involved conducting a Multi-Rate test followed by pressure build-up to establish a baseline for understanding the reservoir's behavior, including darcy and non-darcy skin. The treatment design aimed at better fluid loss control and initiating highly conductive fractures in the reservoir. Specific measures, such as using suitable diverters and acid, were employed to maximize the length of the fractures. To validate the approach, a nodal analysis model was fine-tuned to predict how the well would perform under these conditions. The results post-stimulation were impressive. There was a substantial improvement in well production and flowing bottom hole pressure. In fact, the productivity index of the well increased significantly, representing a substantial enhancement in output. The pressure build-up test after the fracture demonstrated a linear flow within the fracture, indicating a successful treatment with a fracture half-length of approximately 110 feet and a negative skin, which signifies an improvement in flow efficiency. Furthermore, the treatment effectively mitigated the risk associated with Asphaltene deposition, a significant accomplishment given the historical challenges faced in this reservoir. This success can be attributed to an innovative workflow that incorporated a meticulous surveillance plan, a well-thought-out fracturing treatment design, and the application of advanced nodal analysis. Together, these components not only optimized the well's performance but also paved the way for the development of similar high-pressure, tight carbonate reservoirs. This approach not only enhances productivity but also ensures successful mitigation of Asphaltene-related issues, marking a significant advancement in reservoir engineering techniques.
- Asia > Middle East > Kuwait > Ahmadi Governorate > Arabian Basin > Widyan Basin > Greater Burgan Field > Wara Formation (0.99)
- Asia > Middle East > Kuwait > Ahmadi Governorate > Arabian Basin > Widyan Basin > Greater Burgan Field > Ratawi Formation (0.99)
- Asia > Middle East > Kuwait > Ahmadi Governorate > Arabian Basin > Widyan Basin > Greater Burgan Field > Mauddud Formation (0.99)
- (15 more...)
Chevron has hung the for sale sign out on its entire 70% working interest in the Duvernay shale and tight play in Alberta, Canada. The asset comprises 340,000 gross acres located around 260 km northwest of the city of Edmonton. The operator averaged production of 17,500 B/D of condensate and natural gas liquids and 126 MMcf/D of natural gas from the field in 2022. "The business holds significant value in both its current production as well as potential growth opportunities, which we expect to be attractive to other companies with complementary portfolios," the company said in a statement. Chevron's other Canadian interests are not affected."
- North America > Canada > Alberta (0.28)
- Asia > Middle East > Kuwait (0.21)
- Geology > Rock Type > Sedimentary Rock > Clastic Rock > Mudrock > Shale (0.67)
- Geology > Petroleum Play Type > Unconventional Play > Shale Play > Shale Gas Play (0.67)
Advances in field data QC for modern acquisition Nodal seismic acquisition techniques and platform Distributed Acoustic Sensing (DAS) Sensor technology (MEMS, piezoelectric, arrays, hydrophones, dual sensors, 3C/4C, etc.) Source technologies (vibrator, distributed source arrays, propelant, explosives, impulsive, air gun etc.) Seismic surveys for non-oil and gas purposes (CCUS and renewables) Time-lapse Acquisition and processing New acquisition platforms and automation Non-seismic acquisition (EM, MT, potential fields, etc.) Non-geophysical aspects and best practices of data acquisition (HSE, logistics, project management etc.)
- Asia > Middle East > Saudi Arabia (0.16)
- Asia > Middle East > Kuwait (0.16)
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > Asia Government > Middle East Government (0.52)
Advances in field data QC for modern acquisition Nodal seismic acquisition techniques and platform Distributed Acoustic Sensing (DAS) Sensor technology (MEMS, piezoelectric, arrays, hydrophones, dual sensors, 3C/4C, etc.) Source technologies (vibrator, distributed source arrays, propelant, explosives, impulsive, air gun etc.) Seismic surveys for non-oil and gas purposes (CCUS and renewables) Time-lapse Acquisition and processing New acquisition platforms and automation Non-seismic acquisition (EM, MT, potential fields, etc.) Non-geophysical aspects and best practices of data acquisition (HSE, logistics, project management etc.)
- Asia > Middle East > Saudi Arabia (0.16)
- Asia > Middle East > Kuwait (0.16)
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > Asia Government > Middle East Government (0.52)
Max 2 page abstract + 1 figure, single column Abstracts should include sufficient details for the committee to judge the quality of the submitted work. Abstracts should be a minimum of 1 page, text plus 1 figure, with a maximum of 2 pages. Abstracts should be on 8.5 x 11 inch paper size, text in Roman font, and include both text and figures. Title should be one or two lines, at the top of the page, in bold font, and size 12 point. Authors should be listed in Roman italic font, size 10 point, and located just below the title. All text must stay 1 inch clear of the margins of the page. Submissions should be in Adobe Acrobat PDF format.
This workshop focused on advances in characterizing modeling the near-surface and imaging with near surface models. New large structural traps for hydrocarbons are rare. The trend is for low relief structures in depth and time imaging. The imaging of stratigraphic traps is now also very important. These both require near-surface models of greater accuracy and fidelity.
- Asia > Middle East > Saudi Arabia (0.30)
- Asia > Middle East > Kuwait (0.30)
- Geology > Petroleum Play Type > Conventional Play > Structural Play (0.32)
- Geology > Petroleum Play Type > Conventional Play > Stratigraphic Play (0.32)
- Energy > Oil & Gas > Upstream (0.70)
- Government > Regional Government > Asia Government > Middle East Government (0.52)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
The focus of this workshop was to share selected case studies, emerging monitoring techniques, and mapping dynamic behavior of the reservoir and their impact on production and economics of carbonate fields. Based on the success of the workshops held in 2011 and 2013, this third edition aims to capitalize on lessons learned by linking integrated feasibilities and pilot designs to reduce uncertainties in reservoir monitoring and management.
- Asia > Middle East > Kuwait (0.27)
- Asia > Middle East > UAE > Abu Dhabi Emirate > Abu Dhabi (0.18)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
This workshop was targeted towards reviewing and assessing current and future approaches to improve the definition of the 3D earth model of intrashelf basins through sharing best practices and solutions to common exploration and development problems. The Middle East Mesozoic intrashelf basins contain some of the largest oil and gas fields, with hydrocarbon resources supported by a world-class petroleum system and world-class reservoirs. In the Middle East and North Africa (MENA) region itself, the production of oil and gas from conventional reservoirs associated with intrashelf basins has provided the world with an almost continuous supply of hydrocarbons for industry, with unconventional source rocks being viewed as a future resource potential. The IEA's 2014 World Energy Outlook acknowledged that the Middle East is still the only large source of low-cost oil. Today, several challenges exist in finding the steady supply of oil and gas from the reservoir with geology, geophysics, petrophysics, and engineering receiving focus to introduce improved workflows and new technologies.
- Asia > Middle East > Kuwait (0.82)
- Asia > Middle East > Saudi Arabia (0.70)
- Geology > Geological Subdiscipline > Economic Geology > Petroleum Geology (0.98)
- Geology > Rock Type > Sedimentary Rock (0.75)
- Geology > Geological Subdiscipline > Geochemistry (0.63)
- Energy > Oil & Gas > Upstream (1.00)
- Government > Regional Government > Asia Government > Middle East Government > Saudi Arabia Government (0.30)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)