川中磨溪地区嘉二段碳酸盐岩储层物性下限值确定及控制因素分析  

Determination of lower physical property limit and analysis of controlling factors of carbonate reservoir in Jia2 member,Moxi area,central Sichuan

作　　者：李生 罗水亮[1] 张连进 唐松 罗超[3] 吴兆君 LI Sheng;LUO ShuiLiang;ZHANG LianJin;TANG Song;LUO Chao;WU ZhaoJun(The Yangtze University of Earth Sciences,Wuhan 430100,China;Chuanzhong Oil and Gas Mine,Petrochina Southwest Oil and Gas Field Company,Suining 629000,China;College of Petroleum and Natural Gas Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;Shengli Oilfield Dayuan Energy-Saving Equipment Limited(Dongying),Dongying 257100,China)

机构地区：[1]长江大学地球科学学院,武汉430100 [2]中国石油西南油气田公司川中油气矿,遂宁629000 [3]重庆科技学院石油与天然气工程学院,重庆401331 [4]胜利油田大源节能设备有限公司(东营),东营257100

出　　处：《地球物理学进展》2024年第1期253-265,共13页Progress in Geophysics

基　　金：国家自然科学基金“基于致密砂岩储层孔喉全尺度表征的压裂液渗吸盐度变化机理”(42102184)资助.

摘　　要：川中磨溪地区嘉二段碳酸盐岩储集空间类型以孔隙性储层为主,储层孔喉配置关系较为复杂,储层非均质性强,给物性下限值的确定带来一定困难.基于嘉二段孔隙结构差异,分为两部分(嘉二1与2A小层、嘉二2B和2C小层)对研究区嘉二段碳酸盐岩储层物性下限值进行确定,通过前人对沉积、储层等的研究及现有岩心分析与动态生产资料确定储层物性下限值.结合物性下限值的研究结果探讨沉积与成岩等作用对储层的控制,研究区储层有效性主要受沉积微相和成岩作用的控制,沉积严格控制着储层的分布,成岩影响着原生孔隙的保留程度和次生孔隙的发育程度.The carbonate reservoir space of Jia2 member in Moxi area of central Sichuan is dominated by pore type reservoir.The pore throat configuration of the reservoir is complicated,and the reservoir heterogeneity is strong.Considering the heterogeneity of the reservoir.Based on the difference of pore structure in the second member of Jia formation,the lower physical property limits of carbonate reservoirs in the second member of Jia formation in the study area are determined in two parts(Jia21 and 2A small formations,Jia22B and 2C small formations).The lower physical property limits of carbonate reservoirs in the second member of Jia formation in the study area are determined by previous studies on sedimentation and reservoirs,as well as existing core analysis and dynamic production data.Combining with the physical property lower limit of the results of the study to explore the effect such as sedimentation and diagenesis on reservoir control,the effectiveness of the reservoirs are mainly in the study area are controlled by sedimentary microfacies and diagenesis,sedimentary strictly controlled the reservoir distribution,diagenesis affects the degree of reserve of primary pore and secondary pore development degree.

关 键 词：磨溪地区 碳酸盐岩储层 物性下限值确定 控制因素 嘉二段 

分 类 号：P631[天文地球—地质矿产勘探]