稠油油藏多相协同蒸汽驱物理模拟实验

doi:10.3969/j.issn.1006-6535.2023.03.016

特种油气藏 ›› 2023, Vol. 30 ›› Issue (3): 131-136.DOI: 10.3969/j.issn.1006-6535.2023.03.016

稠油油藏多相协同蒸汽驱物理模拟实验

刘刚¹, 曹涵^2,3, 朱爱国¹, 李宜强^2,3, 岳航^2,3

1.中国石油新疆油田分公司,新疆克拉玛依 834000;
2.油气资源与探测国家重点实验室,北京 102249;
3.中国石油大学(北京),北京 102249

收稿日期:2022-04-08 修回日期:2022-11-15 出版日期:2023-06-25 发布日期:2023-07-13
通讯作者: 李宜强(1972—),男,研究员,博士生导师,1993年毕业于大庆石油学院石油工程专业,2006年毕业于中国科学院渗流流体力学研究所流体力学专业,获博士学位,现主要从事提高采收率研究工作。
作者简介:刘刚(1989—),男,工程师,2011年毕业于西安石油大学资源勘查工程专业,2014年毕业于中国石油大学(北京)地质学专业,获硕士学位,现主要从事稠油开发研究工作。
基金资助:
中国石油科技专项“原油重大开发试验专题研究”(kt2020-01-01);中国石油前瞻性科技专项“稠油提高采收率关键技术研究”(2021DJ1402)

Experiment on Physical Simulation of Multi-phase Synergistic Steam Flooding in Heavy Oil Reservoirs

Liu Gang¹, Cao Han^2,3, Zhu Aiguo¹, Li Yiqiang^2,3, Yue Hang^2,3

1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
2. State Key Laboratory of Oil and Gas Resources and Exploration, Beijing 102249, China;
3. China University of Petroleum (Beijing), Beijing 102249, China

Received:2022-04-08 Revised:2022-11-15 Online:2023-06-25 Published:2023-07-13

摘要/Abstract

摘要： 针对稠油油藏蒸汽驱后期纵向矛盾突出、高渗层汽窜严重等问题,以新疆油田九6区稠油油藏为例,开展多介质辅助蒸汽驱物理模拟实验研究,首先评价凝胶的成胶性能和降黏剂的降黏效果,然后使用全直径岩心对多相协同蒸汽驱的组合方式进行优化。结果表明:凝胶成胶封堵高渗层后,后续注入的多相介质可有效进入低渗层,驱动低渗油藏剩余油;注入降黏剂后,再注入N₂可有效增强原油的弹性能量和流动性,有助于扩大蒸汽波及体积;调堵—降黏—增压的多相协同蒸汽驱开发模式是最佳的组合方式,可提高采收率23.65个百分点。研究成果可为改善稠油油藏蒸汽驱后期开发效果提供技术借鉴。

关键词: 稠油, 蒸汽驱, 非均质油藏, 多相协同, 物理模拟, 提高采收率

Abstract: In a case study of heavy oil reservoirs in IX6 Well Block, Xinjiang Oilfiled, physical simulation test of multi-media assisted steam flooding was conducted to address such problems as prominent vertical contradiction in the late stage of steam flooding in heavy oil reservoirs and serious steam channeling in the high-permeability layer. Firstly, the gelling performance and viscosity reducing effect of gel were evaluated, and then the combination mode of multi-phase synergistic steam flooding was optimized by full-diameter core. The results show that after the high-permeability layer was plugged by gelling, the subsequently injected multi-phase media effectively entered the low-permeability layer and drove the remaining oil in the low-permeability reservoir. Nitrogen was injected after viscosity reducer injected to effectively enhance the elastic energy and fluidity of crude oil, which was conductive to expanding the sweep volume of steam. The multi-phase synergistic steam flooding development mode of plugging control, viscosity reduction and pressurization is the best combination mode, which can improve the oil recovery rate by 23.65 percentage points. The study results can provide technical reference for the improved late development effect of steam flooding in heavy oil reservoirs.

Key words: heavy oil, steam flooding, heterogeneous reservoir, multi-phase coordinative, physical simulation, enhanced oil recovery

中图分类号:

TE319

刘刚, 曹涵, 朱爱国, 李宜强, 岳航. 稠油油藏多相协同蒸汽驱物理模拟实验[J]. 特种油气藏, 2023, 30(3): 131-136.

Liu Gang, Cao Han, Zhu Aiguo, Li Yiqiang, Yue Hang. Experiment on Physical Simulation of Multi-phase Synergistic Steam Flooding in Heavy Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2023, 30(3): 131-136.

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稠油油藏多相协同蒸汽驱物理模拟实验

Experiment on Physical Simulation of Multi-phase Synergistic Steam Flooding in Heavy Oil Reservoirs

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