正韵律厚油层水平井开发能量补充方式优化研究  

Energy Supplement Mode Optimization for Horizontal Well Development in Thick Positive Rhythm Oil Reservoir

作　　者：崔传智[1,2] 朱贵良[1] 刘慧卿[2] 王延忠[3] 赵晓燕[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266555 [2]中国石油大学(北京)石油天然气工程学院,北京昌平102249 [3]中国石化胜利油田分公司地质科学研究院,山东东营257000

出　　处：《石油钻探技术》2010年第6期88-91,共4页Petroleum Drilling Techniques

基　　金：国家科技重大专项"大型油气田及煤层气开发"(编号:2008ZX05011-003)资助

摘　　要：受储层非均质性和油水重力分异作用的影响,正韵律厚油层的顶部剩余油相对富集。近年来针对正韵律厚油层顶部剩余油实施水平井调整挖潜取得了较好的效果,但逐渐表现出地层能量不足、产液量下降快等问题。以目前行列井网的孤岛中一区Ng53单元为例,建立精细油藏地质模型,利用数值模拟技术对水平井的能量补充方式进行了优化。在水平井投产同期和水平井投产一段时间两种情况下对老水井的注水方式、新钻注水井以及老油井的转注方式等能量补充方式进行了优化,结果表明,在两种情况下水井排水井隔井单注上部油层能够取得较好的开发效果,而且水平井的能量补充越早,开发效果越好。这对改善正韵律厚油层水平井的开发效果具有重要的指导作用。The remaining oil on top of the thick positive rhythm oil layers is rich due to reservoir heterogeneity and oil-water gravitational differentiation.Recently the development of remaining oil on top of thick positive-rhythm oil layers using horizontal wells obtained good results.The problems such as energy deficiency and rapid decline of liquid production are presented.In this paper,taking Ng53 Block in Zhong1 Area of Gudao Oilfield as an example,the detailed reservoir simulation model is build,and numerical simulation is used to optimize horizontal wells＇energy supplement.Energy supplement by water injection,new injection well and old production well conversions are optimized at the beginning of production and after some time of production.The results show that water injection to top layers obtains better results.The earlier the energy supplement,the better.All these provide guidance for rhythm thick oil reservoir development using horizontal wells.

关 键 词：正韵律厚油层 水平井 能量补充方式 油井 注水井 数值模拟 

分 类 号：TE343[石油与天然气工程—油气田开发工程]