Research on evaluating, selecting and manufacturing the VPI SP chemical product for conducting field test to enhance oil recovery coefficient of oil fields in Cuu Long basin, offshore Vietnam
Abstract
The Vietnam Petroleum Institute (VPI) is implementing a multi-task national level project entitled “Research, evaluate, select and develop a pilot programme for industrial application of solutions to improve oil recovery coefficient for clastic oil bearing reservoirs of oil fields in the Cuu Long basin, on the continental shelf of Vietnam”. Specifically, detailed evaluation studies have been carried out from geological characteristics, reservoir engineering, production to EOR mechanism to develop technical criteria for the process of manufacturing and evaluating the efficiency of the chemical system to optimise the laboratory scale, propose the production and injection scenarios to optimize the development plan as well as evaluate the efficiency of increasing oil recovery coefficient on the reservoir simulation model; conduct production at pilot scale and implement industrial application testing on the field scale for clastic oil bearing reservoir, Cuu Long basin.
The article presents the results of research, evaluation, selection and successful manufacture of a VPI SP chemical system based on the combined mechanism of anionic - non-ionic surfactants and polymers to ensure satisfying the harsh technical requirements of oil fields in Vietnam such as resistance to high temperature, high pressure, high mineralisation, very low surface tension, optimal micro-emulsion, low adsorption onto reservoir rocks, reducing residual oil saturation in the reservoir. Results of the evaluation of increased efficiency of oil recovery on actual samples of Miocene reservoir showed an increase of over 21%. The VPI SP chemical system has been included in the plan of industrial-scale testing by Vietsovpetro in Bach Ho and other producing fields in the clastic sections of the Cuu Long basin.
References
Alvarado Vladimir, “Enhanced oil recovery: Field planning and development Strategies”, 2010.
Hoàng Long, “Nghiên cứu xây dựng cơ sở dữ liệu của 200 dự án EOR trên thế giới và phần mềm chuyên ngành để đánh giá, lựa chọn các giải pháp nâng cao hệ số thu hồi dầu”, Viện Dầu khí Việt Nam, 2020.
L.W. Lake, “Enhanced oil recover, 1996”.
David Levitt, Sophie Dufour, Gary Arnold Pope, Danielle Christine Morel, Pascal Rene Gauer, “Design of an ASP flood in a high-temperature, high-salinity, low-permeability carbonate”, International Petroleum Technology Conference, Bangkok, Thailand, 15 - 17 November 2011. DOI: 10.2523/IPTC-14915-MS.
Jogmec, Nippon Oil Exploration, VPI and Petrovietnam, “Technical workshop on CO2 and hydrocarbon gas EOR”, 2009.
JVPC Project Group, “Block 15-2, Rang Dong field - Excution plan of HCG-EOR pilot test”, 2010.
Chegenizadeh Negin, Saeedi Ali, and Quan Xie, “Most common surfactans employed in chemical enhanced oil recovery”, Petroleum, Vol. 3, No. 2, pp. 197 - 211, 2017. DOI: 10.1016/j.petlm.2016.11.007.
Tập đoàn Dầu khí Việt Nam, "Báo cáo trữ lượng và sản lượng khai thác dầu khí hàng năm của các mỏ dầu khí (Bạch Hổ, Rồng, Sư Tử Đen, Tê Giác Trắng, Rạng Đông…), Báo cáo và phê duyệt trữ lượng dầu khí (RAR), HIIP, Báo cáo trữ lượng dầu khí cập nhật, Kế hoạch phát triển mỏ đại cương (ODP), Kế hoạch phát triển mỏ (FDP), Kế hoạch phát triển mỏ điều chỉnh của các mỏ thuộc bể trầm tích Cửu Long".
Tổng công ty Dầu khí Việt Nam, Viesovpetro, “Tuyển tập Hội thảo khoa học nâng cao hệ số thu hồi dầu mỏ Bạch Hổ”, 2003.
NIPI, Vietsovpetro, “Sơ đồ công nghệ điều chỉnh mới khai thác và xây dựng mỏ Bạch Hổ” 2003, 2008, 2012, 2018.
Larry Co, Zijie Zhang, Qisheng Ma, Gary Watts, Lin Zhao, Patrick J. Shuler, and Yongchun Tang, “Evaluation of functionalized polymeric surfactants for EOR applications in the Illinois basin”, Journal Petroleum Science Engineering, Vol. 134, No. 7, 2015. DOI: 10.1016/j.petrol.2015.06.009.
David Levitt, Adam Jackson, Christopher Heinson, Larry N. Britton, Taimur Malik, Varadarajan Dwarakanath, and Gary Arnold Pope, “Identification and evaluation of high-performance EOR surfactants”, SPE Reservoir Evaluation & Engineering, Vol. 12, No. 2, 2009. DOI: 10.2118/100089-PA.
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