非均质油藏微球乳液调驱物理模拟实验研究  

Experimental research on the profile-control flooding with micro-sphere emulsion in heterogeneous reservoir by physical simulation

作　　者：曹毅[1] 张立娟[1] 岳湘安[1] 柯文奇 丁名臣[1] 于水 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石化集团公司勘探开发研究院采油工程研究所,北京100083 [3]大庆油田公司第一采油厂,黑龙江大庆163453

出　　处：《西安石油大学学报（自然科学版）》2011年第2期48-51,55,共5页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金青年基金项目"油水在油藏孔喉中的流动和乳化机理研究"(编号:50804051);国家科技重大专项"大型油气田煤层气开发"(编号:2009ZX05009)

摘　　要：为了评价JYC聚合物微球乳液调驱技术在非均质油藏中的适应性,通过室内物理模拟实验,测定了纳米级JYC微球乳液在非均质物理模型中分流量的变化规律;通过并联模拟岩心驱油实验,分析了不同浓度和注入量的微球乳液提高采收率效果,优化注入段塞.实验结果表明:新型微球乳液性能稳定且注入性良好;能够有效改善注入水在非均质储层中的分流量,扩大波及体积,启动低渗层原油,且能提高水驱后高渗层的驱油效率;适宜注入质量浓度为2 000 mg/L,注入量大小和储层非均质性密切相关.该调驱技术能够有效改善非均质油藏开发效果,进一步提高原油采收率.In order to evaluate the adaptability of JYC polymer micro-sphere emulsion flooding in the heterogeneous reservoirs,the variation of the fraction flow rate of the polymer micro-sphere emulsion is measured in heterogeneous physical simulation through physical simulation experiments.The effects of the concentration and injection volume of the emulsion on recovery factor are analyzed through the parallel simulation core flooding experiments,and the injected slugs are optimized.The results show that:JYC micro-sphere emulsion is of good stability and injection performance,and it could improve the fraction flow in heterogeneous reservoirs,expand the swept volume,displace the crude oil in low permeability layer,and enhance the recovery efficiency of high permeability layer;the optimal injection concentration is 2 000 mg / L.The injection volume is closely related with the heterogeneity of reservoirs.JYC polymer micro-sphere emulsion flooding technique could improve the development result of heterogeneous reservoirs and enhance the oil recovery factor.

关 键 词：非均质油藏 调驱 聚合物微球乳液 物理模拟 提高采收率 动态含水率 

分 类 号：TE357[石油与天然气工程—油气田开发工程]