低渗透油藏聚合物微球深部调驱适应性研究  

Study on adaptability of polymer microspheres to deep regulation and flooding in low permeability reservoir

作　　者：续化蕾 江厚顺[1] 汪杰[1] 赵康佳 张良君 XU Hualei;JIANG Houshun;WANG Jie;ZHAO Kangjia;ZHANG Liangjun(Cooperative Innovation Center of Unconventional Oil and Gas,Yangtze University,School of Petroleum Engineering,Yangtze University,State Key Laboratory of Low Carbon Catalysis and Carbon Dioxide Utilization,Wuhan 430100,China)

机构地区：[1]长江大学非常规油气省部共建协同创新中心,长江大学石油工程学院,长江大学低碳催化与二氧化碳利用全国重点实验室,湖北武汉430100

出　　处：《延安大学学报（自然科学版）》2024年第4期54-58,共5页Journal of Yan'an University：Natural Science Edition

摘　　要：聚合物微球是目前低渗透油田广泛应用的一种能够提高水驱采收率的深部调剖剂。以长庆X46试验区块为研究对象,预测增油量与可采储量,结合关键注入参数,对低渗透油藏聚合物微球深部调驱适应性进行分析,绘制了聚合物微球调剖效果影响因素图版,明确最佳调剖参数,并结合流线模拟软件验证试验X46区块结论的正确性。结果表明,试验区推荐采用微球浓度为0.50%,将注入量控制在1500~2000 m^(3)的范围内。微球的粒径应设定为100 nm,最佳注入时机应确保含水率维持在40%~70%之间。该研究可为该油田深部调剖措施以及类似油田高含水后期的开发调整提供一定的指导和借鉴意义。Polymer microspheres are widely used as a deep profile control agent to improve water drive recovery in low permeability oil fields.Taking Changqing X46 test block as the research object,the oil increase and recoverable reserves were predicted,and the adaptability of polymer microsphere deep regulation and flooding in low permeability reservoir was analyzed in combination with key injection parameters.The influencing factors of polymer microsphere profile regulation effect were drawn to determine the optimal profile regulation parameters,and the correctness of the conclusions of test X46 block was verified with flow line simulation software.The results show that 0.50%microsphere concentration is recommended in the test area,and the injection amount is controlled in the range of 1500~2000 m^(3).The particle size of the microspheres should be set at 100 nm,and the best injection time should ensure that the water content is maintained between 40%and 70%.This study can provide some guidance and reference for the deep profile control measures of this oilfield and the development adjustment of similar oilfields in the late period of high water cut.

关 键 词：低渗透油藏 微球调剖 适应性分析 注入时机 

分 类 号：TE37[石油与天然气工程—油气田开发工程]