刘义刚,夏欢,代磊阳,卢祥国,刘进祥,何欣,张云宝
LIU Yigang,XIA Huan,DAI Leiyang,LU Xiangguo,LIU Jinxiang,HE Xin,ZHANG Yunbao

• 1:中海石油(中国)有限公司天津分公司
• 2:东北石油大学提高油气采收率教育部重点实验室

摘要(Abstract)：

渤海B油田储层非均质性较强,水驱开发效果较差。为提高渤海B油田分散型调驱体系深部液流转向效果,对"纳米型""核壳型"和"超分子型"3种分散型调驱体系与孔喉配伍性、渗透率极限的关系进行了实验研究。结果表明:分散型调驱体系在岩心内的阻力系数与调驱体系的体积质量、注入速度成正比,与油藏渗透率成反比;"纳米型"和"核壳型"分散型调驱体系适用于中、高渗透率储层,"超分子型"适用于高、超高渗透率储层;"纳米型"和"超分子型"分散型调驱体系的岩心喉道直径与微球粒径之比接近固体颗粒在孔隙内不发生桥堵时的理论值;增加注入速度可以减小岩心端面微球滞留量、减弱分散型调驱体注入岩心过程中的端面效应。分散型调驱体系与储层渗透率适应性研究对渤海B油田上产稳产具有重要意义。
Bohai B Oilfield is characterized by rather stronger reservoir heterogeneity and poorer water driven effects. In order to improve the deep fluid diversion effect of dispersed profile control and displacing system in the oilfield, the relationships between dispersed profile control and flooding systems of nano-type, core/shell-type and supramolecular-type and the pore throat compatibility and permeability limit of the reservoir are studied experimentally. The results show that the resistance coefficients of the system in the core is proportional to its volume mass and injection speed, and inversely proportional to the reservoir permeability. The former two types of the systems are suitable for medium and high permeability reservoirs, and the latter is suitable for high and ultra-high permeability reservoirs. The ratios of core throat diameter to microsphere size of nano-type and supramolecular-type dispersed flooding systems are close to the theoretical value of the solid particles without bridging in the pores. Increasing injection speed can reduce microsphere retention on the core end surfaces and weaken the end effect of the core injection process of dispersed flooding agents. The adaptability studies on dispersed profile control and displacing system to the reservoir permeability are of great significance to the incremental and stable productions of Bohai B Oilfield.

关键词(KeyWords)： 分散型调驱体系;渗透率;微球粒径;阻力系数;注入速度;渤海油田
dispersed profile control and flooding system;permeability;microsphere size;resistance coefficient;injection rate;Bohai Oilfield

Abstract:

Keywords:

基金项目(Foundation): 国家“十三五”科技重大专项子课题“渤海双高油田多级窜逸堵调驱一体化技术研究及示范”(2016ZX05009003-010-001);; 中海石油(中国)有限公司天津分公司重点攻关课题“强化水驱调驱技术研究与应用”(CCL2018TJTSWST0435)

作者(Author): 刘义刚,夏欢,代磊阳,卢祥国,刘进祥,何欣,张云宝
LIU Yigang,XIA Huan,DAI Leiyang,LU Xiangguo,LIU Jinxiang,HE Xin,ZHANG Yunbao

DOI: 10.19597/j.issn.1000-3754.202001002

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