Advances in enhanced oil recovery technologies for low permeability reservoirs
Kang W.-L. Zhou B.-B. Issakhov M. Gabdullin M.
August 2022China University of Petroleum Beijing
Petroleum Science
2022#19Issue 41622 - 1640 pp.
Low permeability oil and gas resources are rich and have great potential all over the world, which has gradually become the main goal of oil and gas development. However, after traditional primary and secondary exploitation, there is still a large amount of remaining oil that has not been recovered. Therefore, in recent years, enhanced oil recovery (EOR) technologies for low permeability reservoirs have been greatly developed to further improve crude oil production. This study presents a comprehensive review of EOR technologies in low permeability reservoirs with an emphasis on gas flooding, surfactant flooding, nanofluid flooding and imbibition EOR technologies. In addition, two kinds of gel systems are introduced for conformance control in low permeability reservoirs with channeling problems. Finally, the technical challenges, directions and outlooks of EOR in low permeability reservoirs are addressed.
Conformance control , Enhanced oil recovery , Gas flooding , Imbibition , Low permeability reservoir , Nanofluid flooding , Surfactant flooding
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Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Shandong, Qingdao, 266580, China
School of Petroleum Engineering, China University of Petroleum (East China), Shandong, Qingdao, 266580, China
Kazakh-British Technical University, Almaty, 050000, Kazakhstan
Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China))
School of Petroleum Engineering
Kazakh-British Technical University
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