强储层非均质性高含水井组立体挖潜方法及实施效果  

Stereoscopic Potential Tapping Method and Practice of Strong Reservoir Heterogeneity and High Water Cut Well Group

作　　者：卢轶宽 王伟 闫寒 王辉 吴卓 万禧煌 付立群 LU Yikuan;WANG Wei;YAN Han;WANG Hui;WU Zhuo;WAN Xihuang;FU Liqun(Tianjin Branch,CNOOCLtd.,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《天津科技》2021年第8期13-15,共3页Tianjin Science & Technology

摘　　要：渤海A油田于2009年投产,根据油藏砂体平面展布及纵向叠置情况,采用水平、定向井结合,不规则井网注水开发。油田现已进入中高含水开发阶段,部分单井含水率甚至突破80%,稳油控水难度大。为减缓自然递减率,虽然已对高含水油井实施大泵提液,但收效甚微,单井日均增油量仅为5~8 m3。考虑提液井液量及生产压差已临近出砂极限,A油田以油藏工程理论为指导,以生产测试资料为依据,采用氮气泡沫复合调剖体系实施目标井组的立体挖潜,取得了显著成效。The Bohai A oilfield was put into production in 2009.According to the sand body's horizontal distribution and vertical superposition,the combination of horizontal and directional wells and irregular well patterns are used for water injection development.After many years of production,the oilfield has now entered the medium-high water-cut development stage.The water cut of some single wells has even exceeded 80%,making it difficult to stabilize oil and control water.In order to slow down the natural decline rate,the oilfield has implemented large pumps for high water-cut oil wells,but the results have been minimal.The average daily oil increase of a single well is only 5 to 8m3.Considering that the fluid volume of the extraction well and the production pressure difference are approaching the sand production limit,guided by the theory of reservoir engineering and based on the production test data,Bohai A Oilfield has achieved remarkable results by using the nitrogen foam compound profile control system to carry out the stereoscopic potential tapping of the target well group.

关 键 词：非均质性 高含水 氮气泡沫 渤海油田 

分 类 号：TE343[石油与天然气工程—油气田开发工程]