一种叠加汽窜影响的稠油剩余油潜力评价方法——以井楼油田中区为例  

A method for evaluating residual oil potential of heavy oil reservoirs affected by steam channeling——by taking the middle area of Jinglou oilfield as an example

作　　者：费永涛[1] 刘宁[1] 丁勇 李星[1] 张辉松 刘士梦 FEI Yongtao;LIU Ning;DING Yong;LI Xing;ZHANG Huisong;LIU Shimeng(Exploration&Development Research Institute of Henan Oilfield Company,SINOPEC,Zhengzhou,Henan 450048,China;No.2 Oil Production Plant of Henan Oilfield Company,SINOPEC,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,河南郑州450048 [2]中国石化河南油田分公司采油二厂,河南南阳473400

出　　处：《石油地质与工程》2020年第1期79-83,共5页Petroleum Geology and Engineering

摘　　要：油藏进入超高轮次蒸汽吞吐阶段以后,汽窜升级为网状面积汽窜,加剧了剩余油赋存状态的复杂程度及剩余油潜力评价的难度。在原有常规剩余油潜力评价方法的基础上,利用油藏工程确定泄油半径、汽窜宽度等参数,绘制网状汽窜分布图,将其与动态分析及油藏数值模拟研究的剩余油分布结果相叠合,形成了一种叠加汽窜影响的剩余油潜力评价方法。应用于井楼油田中区,明确了三种剩余油分布模式,划分出低采高黏、中采中黏、高采低黏三类剩余油潜力区,为制定超高轮次蒸汽吞吐阶段采收率提高的技术策略提供了依据。After the reservoir entered the stage of super high cycle steam stimulation,steam channeling upgraded to network area steam channeling,which intensified the complexity of remaining oil occurrence and the difficulty of remaining oil potential evaluation. On the basis of the conventional residual oil potential evaluation method, the parameters such as drainage radius and steam channeling width are determined by reservoir engineering,and the network steam channeling distribution map is drawn, which is combined with the residual oil distribution results of dynamic analysis and reservoir numerical simulation, thus forming a residual oil potential evaluation method with superimposed steam channeling effect. After being applied in the middle area of Jinglou oilfield, three kinds of residual oil distribution patterns are defined and classified, namely, low production and high viscosity area, medium production and high production area, high production and low viscosity area, which provides a basis for formulating the technical strategy for improving oil recovery in ultra–high cycle steam stimulation stage.

关 键 词：井楼油田中区 剩余油分布 潜力评价 稠油油藏 汽窜 蒸汽吞吐 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]