多重介质聚合物微球调驱机理研究及应用  

Study and Application of Profile Control and Flooding Mechanism of Multi⁃Media Polymer Microspheres

作　　者：庄建 张维[1] 梁云 温柔 王学生 张书唯 杨子浩[2] Zhuang Jian;Zhang Wei;Liang Yun;Wen Rou;Wang Xuesheng;Zhang Shuwei;Yang Zihao(No.1 Oil Production Plant of Changqing Oilfield,China Petroleum and Natural Gas Co.,Ltd.,Yan'an Shaanxi 716000,China;Unconventional Research Institute of China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油天然气股份有限公司长庆油田第一采油厂,陕西延安716000 [2]中国石油大学(北京)非常规油气科学技术研究院,北京102249

出　　处：《石油化工高等学校学报》2020年第6期49-55,共7页Journal of Petrochemical Universities

摘　　要：安塞油田自2016年起开展聚合物微球调驱工作,先后经历先导试验、扩大试验和规模推广三个阶段,实施区域转未实施区域阶段递减率可降低5%左右,整体效果明显,但在不同储层条件下的适应性及应用效果具有较大差异,为研究聚合物微球在多重介质条件下的作用机理,开展了60组不同粒径聚合物微球在不同介质条件下的驱替试验,应用实验数据与现场矿场应用结合的方法系统总结微球调驱机理(渗流机理、改变流向机理),微球粒径与储层微裂缝、孔喉匹配关系,为后期施工参数优化提供依据。Since 2016,Ansai oilfield has carried out polymer microsphere profile control and flooding,which has experienced three stages:pilot test,expand the scale of the test and promotion of three stages.The regional stage decline can be reduced about 5%,the overall effect is obvious,but the adaptability and application effect under different reservoir conditions are quite different,For the study of polymer microspheres in multiple media under the condition of mechanism,a group of 60 different particle size of polymer microspheres in different media under the condition of displacement test was carried out.Through the combination of experimental data and field application,the mechanism of microsphere oil displacement(percolation mechanism,change of flow direction mechanis)and the matching relationship between microsphere particle size and reservoir microfractures and pore throat are systematically summarized,which provides a basis for the optimization of construction parameters in the later stage.

关 键 词：聚合物微球调驱 渗流机理 孔喉匹配 多重介质 

分 类 号：TE357[石油与天然气工程—油气田开发工程]