摘要
目前关于油藏底水锥进问题的研究很多,但对于边水油藏边水推进及水平井见水时间研究很少。基于不同位置水平井段处见水时间差异特征,考虑了非活塞式驱替,推导了近似直线供给边界的边水油藏水平井见水时间预测新公式。实例应用及数值模拟研究表明该预测公式有较高的精度。预测新公式为深入研究边水推进机理,控制见水时间提供了理论依据,对边水油藏生产管理具有重要的指导意义。
As the horizontal well technology advances, many studies have been conducted on the behavior of water cresting. However, horizontal well was treated as one point in breakthrough time calculation for previous stud-ies, which is not accurate. Based on same pressure gradient for oil and water phase at one point, a new correlation was developed to predict breakthrough time for horizontal wells in edge water drive reservoirs, considering elliptical flow and non-piston-like displacement. The derived formula can serve as a quick predicative tool before embarking on detailed reservoir simulation, which can also provide guidance for further research about the edge water forward mechanism and management of edge water reservoirs.
出处
《科学技术与工程》
北大核心
2014年第2期84-86,共3页
Science Technology and Engineering
基金
国家科技重大专项(2011ZX05030-005-05)资助
关键词
水平井
见水时间
边水油藏
horizontal wells
water breakthrough time
edgewater drive reservoirs
