引用本文:王永红,赵明伟,耿捷,晏翔,刘长龙,彭鑫,等. 渗吸置换提高原油采收率研究进展[J]. 石油与天然气化工, 2024, 53(3): 64-72.
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渗吸置换提高原油采收率研究进展
王永红1,赵明伟2,耿捷3,晏翔2,刘长龙4,彭鑫2,蒙露明2,邹辰炜2,胡勇5,戴彩丽2
1.中国石油集团工程技术研究院有限公司;2.中国石油大学(华东)石油工程学院;3.中国石油乍得公司 ;4.中海石油(中国)有限公司天津分公司;5.中国石油化工股份有限公司石油勘探开发研究院
摘要:
渗吸置换作用已逐渐成为非常规油藏和低渗、特低渗裂缝性油藏提高原油采收率的一种重要方式,大量裂缝的存在及细小孔隙发育为渗吸作用的发生创造了有利条件。首先,基于毛细管压力与重力对渗吸的贡献程度,对渗吸模式进行分类;而后,主要聚焦于影响渗吸的各类因素,详细阐述如储层类型、孔渗物性、边界条件、流体(包括原油与渗吸液体)性质等因素对渗吸的影响规律及作用机制,总结了目前使用的研究渗吸的各种实验手段;最后,根据渗吸作用的研究进展,探讨在实验条件确定、黏土水化影响、界面张力优化和渗吸模式选择等方面所面临的问题,并对这些问题的研究前景进行展望。 
关键词:  渗吸  提高采收率  非常规油藏  低渗特低渗  裂缝 
DOI:10.3969/j.issn.1007-3426.2024.03.011
分类号:
基金项目:国家自然科学基金重点国际(地区)合作研究项目“超深层新型抗高温聚合物冻胶压裂液及耐温减阻机制”(52120105007);国家自然科学基金面上项目“深层硼锆共修饰碳点交联压裂液制备及网络剪切重构机制”(52374062);国家重点研发计划资助项目“油/水/固界面浸润调控智能流体提高采收率关键材料与机理研究”(2019YFA0708700)
Research progress on enhancing oil recovery by imbibition
WANG Yonghong1, ZHAO Mingwei2, GENG Jie3, YAN Xiang2, LIU Changlong4, PENG Xin2, MENG Luming2, ZOU Chenwei2, HU Yong5, DAI Caili2
1. CNPC Engineering Technology R&D Company Limited, Beijing, China;2. School of Petroleum Engineering in China University of Petroleum (East China), Qingdao, Shandong, China;3.CNPC International (Chad) Co., Ltd. , N'Djamena, Chad ;4. Tianjin Branch of CNOOC Limited, Tianjin, China;5. Sinopec Petroleum Exploration and Production Research Institute, Beijing, China
Abstract:
Imbibition has gradually become a crucial mechanism for enhancing oil recovery in unconventional and low-permeability fractured reservoirs. The existence of a large number of fractures and the development of small pores provide favorable conditions for imbibition. This paper categorizes the imbibition mode based on the contribution of capillary force and gravity to imbibition. It elaborates in detail on the impact laws and mechanisms of factors such as reservoir type, pore permeability properties, boundary conditions, and fluid (including crude oil and infiltration liquids) properties on infiltration focuses on various factors that affect infiltration, and summarizes various experimental methods currently used to study infiltration. Finally, based on the progress in imbibition research, we discuss and look forward to the research prospects in selecting experimental conditions, the influence of clay hydration, optimising interfacial tension, and determining imbibition patterns.
Key words:  imbibition  enhance oil recovery  unconventional reservoirs  low and ultra-low permeability  fracture