鄯善油田三类油层压驱新工艺的研究与应用  

Research and Application of a New Fracturing-Flooding Technology for Ⅲ-type Reservoirs in Shanshan Oilfield

作　　者：王静[1] 蒋明 向洪 段勇成 张宁县 邓强 Wang Jing;Jiang Ming;Xiang Hong;Duan Yongcheng;Zhang Ningxian;Deng Qiang(Tuha Oilfield Company,CNPC,Shanshan,Xinjiang 838299,China)

机构地区：[1]中国石油吐哈油田分公司,新疆鄯善838299

出　　处：《石油工业技术监督》2020年第12期6-9,共4页Technology Supervision in Petroleum Industry

基　　金：中国石油天然气股份有限公司重大科技专项“新疆油田和吐哈油田勘探开发关键技术研究与应用”(编号:2012E-34-14)。

摘　　要：通过建立老油区地质力学理想模型,研究了压驱工艺裂缝扩展和渗流机理,并分析了地层因素、工程因素对裂缝半长和渗滤距离的影响及其权重,结合施工参数优化版图形成了适合于鄯善老油区压驱工艺的最优施工方案参数。根据最优压驱工艺方案对2口停产待报废井采取先驱油补能后加砂压裂的工艺,开采效果明显,证实了压驱工艺可提高采收率,为难动用的三类油层开发井提升开发效果提供了新的技术思路。Through the establishment of ideal geomechanical model of old oil area,the fracture propagation and seepage mechanism in fracturing-flooding technology are studied,and the influences of formation factors and engineering factors on fracture half length and percolation distance and their weight are analyzed.Combined with construction parameter optimization layout,the optimal construction scheme suitable for fracturing-flooding technology in Shanshan old oil area is formed.The optimal fracturing-flooding scheme,that is,the technology of sand fracturing after energy supplement by flooding was applied to two abandoned wells to be shut down.The recov⁃ery effect was obvious after construction,which confirmed the feasibility of fracturing-flooding technology to enhance oil recovery,and provided a new technical idea for improving development effect of development wells in III-type reservoirs that are difficult to be pro⁃duced.

关 键 词：三类油层 压驱工艺 垂直裂缝 采收率 

分 类 号：TE357[石油与天然气工程—油气田开发工程]