中低渗油藏三元复合驱井网优化  

The Well Pattern Optimization of Chemical Combination Flooding in Mid-low Permeability Reservoir

作　　者：饶良玉[1] 韩冬[1] 吴向红[1] 王强[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《重庆科技学院学报（自然科学版）》2011年第5期29-31,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：中国石油集团科研攻关项目(2008B-4401)

摘　　要：以中低渗砂岩油藏S区块为例,为设计化学驱井网和提高其特高含水期油藏采收率,设计反五点和反十三点组合井网、小五点井网和斜列井网,运用三次采油数值模拟软件开展效果预测。结果表明,斜列井网具有较强的适应性,见效时间早、持续时间长,能提高采收率12.96%;组合井网次之;小五点适应性较差。认为试验区适宜井网为斜列井网。Take Block S, a mid-low permeability sandstone reservoir, for example, the paper designs well pattern of chemical flooding and enhances oil recovery factor at the stage of ultra-high water-cut. Based on the adjustment history of well pattern, such three different well patterns as inverted 5-spot and inverted 13-spot combination well pattern, little 5-spot well pattern and tilted-line well pattern, numerical simulation technology is used to predict the performance of chemical flooding. The results show that tilted-line well pattern has strong feasibility for early result and long sustainable period and can enhance oil recovery of 12.96%; the combination well pattern is second to it; and little 5-spot well has less feasibility. Considering chemical injectors and facility investment, the optimized well pattern of the target area should be tilted-line well.

关 键 词：中低渗砂岩油藏 三元复合驱 井网优化 数值模拟 特高含水期 

分 类 号：TE324[石油与天然气工程—油气田开发工程]