摘要
针对克拉玛依油田老区砂砾岩油藏多处于高含水率,高递减,低速、低效的水驱开发后期阶段的现状,本次选择七中区S72-2、S72-3、S73、S74-1砂砾岩油层,采用类比分析、油藏工程分析、数值模拟及经济评价等研究方法,对不同井网井距条件下复合驱开采技术界限和开发效果进行了论证,最终确定了五点法正方形面积井网、150m注采井距的复合驱工业化试验方案。
In view of the water drive later stage of high water cut and rapidly decreasing of sand-gravel reservoirs in old blocks of Karamay oilfield,S72-2,S72-3,S73,S74-1 reservoirs of Qi-zhong area were selected to conduct a chemical combination flooding test.This article shows the development technical limit and development effect of the combination flooding in different well pattern and space through analogical analysis,reservoir engineering analysis,numerical reservoir simulation and tech-economic evaluation.Finally,the well spacing scheme with five spot quadrant area well patterns and 150m injected well spacing was chosen for the combination flooding test in Ke-xia formation reservoir of Qi-zhong area.
出处
《新疆石油天然气》
CAS
2012年第2期54-59,2,共6页
Xinjiang Oil & Gas
关键词
克拉玛依
砂砾岩油藏
复合驱
井网井距
Karamay
sand-gravel reservoirs
combination flooding
well patterns and spacing
