岩性油气藏 ›› 2021, Vol. 33 ›› Issue (5): 172–180.doi: 10.12108/yxyqc.20210517

• 油气田开发 • 上一篇    下一篇

纵向双层缝洞油藏橡胶颗粒调流适应性

毛志强1, 张雯2, 吴春洲3, 陈立峰1, 陈亚东1, 李岗1, 曾慧勇1, 刘靓1   

  1. 1. 长江大学 石油工程学院, 武汉 430100;
    2. 中国石化西北油田分公司 石油工程技术研究院, 乌鲁木齐 830011;
    3. 中海油田服务股份有限公司, 天津 300450
  • 收稿日期:2021-01-25 修回日期:2021-04-18 出版日期:2021-10-01 发布日期:2021-09-30
  • 第一作者:毛志强(1999-),男,长江大学在读硕士研究生,研究方向为油田化学和提高采收率技术研究。地址:(430100)湖北省武汉市蔡甸区长江大学石油工程学院。Email:mzq1183250147@163.com
  • 通信作者: 陈立峰(1987-),男,博士,副教授,主要从事油田化学和提高采收率技术等方面的教学与研究工作。Email:LYJ505523522@126.com。
  • 基金资助:
    国家自然科学基金项目“热敏聚合物纳米流体高温触变机制研究”（编号：52074038）资助

Flow regulation adaptability of rubber particles in longitudinal double-layer fractured-vuggy reservoirs

MAO Zhiqiang1, ZHANG Wen2, WU Chunzhou3, CHEN Lifeng1, CHEN Yadong1, LI Gang1, ZENG Huiyong1, LIU Liang1   

  1. 1. School of Petroleum Engineering, Yangtze University, Wuhan 430100, China;
    2. Research Institute of Petroleum Engineering and Technology, Sinopec Northwest Oilfield Company, Urumqi 830011, China;
    3. China Oilfield Services Co., Ltd., Tianjin 300450, China
  • Received:2021-01-25 Revised:2021-04-18 Online:2021-10-01 Published:2021-09-30

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摘要： 为解决纵向双层缝洞油藏地层强非均质性引起的油井暴性水淹和产量递减等问题，利用一种新型橡胶颗粒调流剂，通过有机玻璃刻蚀模型微观驱替实验，进行纵向双层缝洞油藏水驱规律和注入参数优化研究。结果表明，油水两相流动时，固体介质对流体流动的阻力几乎为零，而重力作用表现突出，因此纵向双层缝洞油藏经注入水驱替后仍然存在大量连通性较差的溶洞剩余油、绕流油和阁楼油；此外，通过优化橡胶颗粒调流剂的注入参数，确定了最佳注入量为0.02 PV，最佳颗粒粒径为0~1 mm和2~4 mm，最佳注入速度为25 mL/min。将这一研究结论应用于TK50X井，取得了较好的降水增油效果。该研究结果可为以后纵向双层缝洞油藏的研究提供一定借鉴意义。

关键词: 纵向双层, 缝洞油藏, 橡胶颗粒, 注入参数, 优化

Abstract: In order to solve the problems of oil well flooding and production decline caused by strong heterogeneity, a new type of rubber particle flow regulating agent was used to study the water flooding rule and injection parameter optimization of longitudinal double-layer fractured-vuggy reservoirs through micro-displacement experiment of plexiglass etching model. The results show that the resistance of solid media to fluid flow is almost zero when the oil-water two-phase flow occurs, and the gravity action is prominent. Therefore, there are still a lot of residual oil of karst cave, flow around oil and attic oil with poor connectivity after the longitudinal doublelayer fractured-vuggy reservoir is displaced by injected water. In addition, the injection parameters of rubber particle flow regulating agent were optimized. The optimal injection volume is 0.02 PV, the optimal particle size is 0-1 mm and 2-4 mm, and the optimal injection speed is 25 mL/min. The research results were applied to well TK50 X, and good effect of increasing oil production and decreasing water cut has been achieved. The research results can provide some reference for the future research of longitudinal double-layer fractured-vuggy reservoirs.

Key words: longitudinal double-layer, fractured-vuggy reservoir, rubber particles, injection parameters, optimization

中图分类号: 

  • TE341
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