特低渗透油藏见水特征及原因分析  

Water breakthrough characterristics and its forming reason in extra-low permeability oil reservoirs

作　　者：魏忠元[1,2] 孔建敏 慕国权[1,2] 王长江 申利娜[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院 [2]低渗透油气田勘探开发国家工程实验室 [3]中国石油长城钻探测井公司 [4]中国石油测井公司油气评价中心

出　　处：《低渗透油气田》2015年第2期61-64,共4页

摘　　要：大量低渗透油藏开发实践表明，油井见水情况与储层物性及裂缝性质有关。以BYS长4＋5油藏为例，从单井生产数据着手．通过井间注采对比、井间示踪剂测试和油水井连通关系分析，总结出4种含水变化类型及分布规律。从裂缝成因、构造应力场和沉积环境方面分析总结了不同见水特征的成因。Lots of low-permeability oil reservoirs development practices show that water breakthrough situation in oil wells is related to the reservoir properties and fracture nature. Taking BYS Chang4＋5 reservoirs as examples, starting with individual well production da- ta, four kinds of water-cut variation types and distribution laws are summed up through contrast of injection and production between wells, interwell tracer test and analysis of producer-injector communication relations. Various reasons of water-breakthrough characteristics are analyzed and summarized from the fracture formation causes, tectonic stress field and sedimentary environment.

关 键 词：特低渗透 BYS 裂缝 连通性 见水特征 

分 类 号：TE348[石油与天然气工程—油气田开发工程]