基于聚合物驱的多级非均相调驱研究  

Research on multi-stage heterogeneous flooding based on polymer flooding

作　　者：张小静[1] 卢军[2] 张卓[1] 梁丽梅[1] 郭琳琳 ZHANG Xiaojing;LU Jun;ZHANG Zhuo;LIANG Limei;GUO Linlin(Petroleum Exploration and Development Research Institute,Sinopec Henan Oilfield,Nanyang,Henan 473132,China;Oil and Gas Development Management Division,Sinopec Henan Oilfield,Nanyang,Henan 473132,China;No.2 Oil Production Plant,Sinopec Henan Oilfield,Nanyang,Henan 473400,China)

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南南阳473132 [2]中国石化河南油田分公司油气开发管理部,河南南阳473132 [3]中国石化河南油田分公司采油二厂,河南南阳473400

出　　处：《油气藏评价与开发》2020年第6期90-95,共6页Petroleum Reservoir Evaluation and Development

基　　金：中国石化股份有限公司示范工程“中高渗砂砾岩油藏聚驱后非均相复合驱技术”(P19007-4);中国石化股份有限公司重大专项“聚驱后油藏水驱提高采收率技术”(P16080)。

摘　　要：针对王集油田王17断块中低渗断块油藏非均质严重,注入水沿高渗透条带突进,采出程度低,水驱提高采收率能力有限的问题,开展了化学驱提高采收率技术研究,评价筛选了聚合物、黏弹颗粒驱油剂(PPG),应用物模技术对复配形成的非均相驱油体系段塞结构、驱油效率及分流率进行评价,应用数模技术,优化了段塞量及结构,预测王17块采用多级非均相调驱段塞聚合物驱可提高采收率8.25个百分点,现场应用已初见成效,该技术成果已在下二门油田B238块聚合物驱项目借鉴推广应用。In order to solve the problems of serious heterogeneity,breakthrough of injected water along high permeability zone,low recovery percent of reserves and limited EOR capability of water flooding in the middle and low permeability fault-block reservoir of Wang-17 Block in Wangji Oilfield,the EOR technology of chemical flooding has been studied,and polymer and preformed particle gel(PPG)have been evaluated and screened.The slug structure,oil displacement efficiency and diversion rate of heterogeneous oil displacement system formed by compounding have been evaluated by physical simulation technology.And the slug volume and structure have been optimized by numerical simulation technology.It is confirmed that multi-stage heterogeneous profile control and slug polymer flooding can improve the recovery rate in Wang-17 Block by 8.25 percentage points.The field application has achieved initial results.This technology has been used for reference and popularized in the polymer flooding project of B238 Block in Xiaermen Oilfield.

关 键 词：聚合物驱 多级段塞 非均相驱 物理模拟 数模优化 

分 类 号：TE357[石油与天然气工程—油气田开发工程]