薄互层油藏水平井注采试验数值模拟研究  

Numerical simulation research of injection-production pattern in thin interbedded reservoir

作　　者：杨海宁[1] 刘月田[1] 冷小勇 刘加旭[3] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京昌平102249 [2]中国石油大庆油田有限责任公司采油八厂 [3]中国石油冀东油田分公司

出　　处：《石油地质与工程》2012年第5期100-102,106,共4页Petroleum Geology and Engineering

基　　金：国家科技重大专项"大型油气田及煤层气开发项目"(2011ZX05009-004)

摘　　要：与水平井采油一样,水平井注水作为一种高效的油气开采技术,越来越多的应用于各类复杂油藏开发中。以特低丰度薄层油藏实际区块为实例,通过理论分析、数值模拟及矿场试验等方法,研究薄互层油藏水平井注采开发规律。研究结果表明:水平井注水可形成很好的线性均匀驱替,延缓注入水突破时间,提高水驱波及效率,达到增加注入量、降低注入压力、改善油田开发效果的目的。以肇州油田M井区为例,提出水平井见水后应以注水井为重点调整对象,合理调整注入量或封堵高渗吸水层位,可实现水平井单井含水率下降的目的。As an effective hydrocarbon production technology, horizontal injection is more and more applied in various complicated reservoir development, just like oil prodcution of horizontal wells. Taking the practical block of thin reservoir with ultra-low abundance as an example, through theoretical analysis, numerical simulation and field experiment, the injection-production regularity of horizontal wells in thin interbedded reservoir has been studied. The results indicate horizontal injection can form linear uniform displacement, prolong the breakthrough time of water injection, enhance waterflooding sweep efficiency, reduce injection pressure and improve development effect. Taking M well area of Zhaozhou oilfield as the example, it is believed that the key adjustment object should be focused on water injection wells. By reasonably adjusting injection volume or sealing water-injection layers with high permeability, the decreased water cut of horizontal single well can be easily realized.

关 键 词：薄互层油藏 水平井注水 数值模拟 注采井网 肇州油田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]