九龙山珍珠冲组砂砾岩储层改造技术研究与实践  

Research and Practice of Conglomerate Reservoir Stimulation Technique in Zhenzhuchong Group,Jiulongshan

作　　者：缪云[1] 宋毅[1] 曾波[1] 刘俊辰[1] 

机构地区：[1]中国石油西南油气田分公司工程技术研究院,四川广汉618300

出　　处：《重庆科技学院学报（自然科学版）》2016年第5期55-57,70,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"大型油气田及煤层气开发"(2011ZX05047)

摘　　要：四川盆地九龙山珍珠冲组砾岩储层基质孔渗条件差,非均质性强,裂缝及其溶蚀孔洞是重要的储集空间和主要的渗流通道。针对该区储层特征,结合室内评价实验和储层评价结果,对于裂缝发育的储层,采用土酸酸化;对于裂缝欠发育的储层,在酸化工艺无效的情况下开展加砂压裂工艺试验,通过施工管柱、施工参数的优选,成功地实施了对砾岩储层的加砂压裂改造,取得了一定的改造效果。The conglomerate reservoir of Zhenzhuchong Group, Jiulongshan in Sichuan Basin features with low ma- trix porosity, low matrix permeability and strong inhomogeneity; fissures and corroded cavities are the dominant res- ervoir spaces and fundamental seepage channels. In view of the reservoir characteristics of this region, mud acid a- cidizing treatment has been deployed in fracture - propagated reservoirs, based on laboratory evaluation experiments and reservoir assessment results. With respect to fracture - under - propagated reservoirs, sand fracturing technolo- gy has been tested on condition of non - effective acidizing treatment. Based on optimization of the operating strings and parameters, sand fracturing stimulation has been successfully applied to the conglomerate reservoir and some certain effect of stimulation has been attained.

关 键 词：九龙山 珍珠冲组 砾岩 土酸酸化 加砂压裂 

分 类 号：TE357[石油与天然气工程—油气田开发工程]