高饱和油藏水驱开发合理注采政策研究  

Reasonable injection-production policies of water flooding in high-saturated reservoir

作　　者：陈民锋[1] 刘桂玲[2] 孙东升[2] 唐湘明[2] 郑伟[1] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京昌平102249 [2]中国石化江苏油田分公司地质科学研究院,江苏扬州225009

出　　处：《复杂油气藏》2011年第4期37-40,58,共5页Complex Hydrocarbon Reservoirs

摘　　要：高饱和油藏的饱和压力较高、地饱压差小,油藏水驱开发效果易受到开采制度的影响。基于实际高饱和油藏的特点,综合应用油藏工程分析和典型模型数值模拟的研究方法,研究了高饱和油藏的开发特点、多相渗流对油藏生产能力的影响;在此基础上,计算分析了在不同开发阶段、不同地饱压差条件下,注水时机、注采比对开发效果的影响,确定了高饱和油藏的极限注水时机和合理注水时机,以及不同开发阶段时的合理注采比。研究结果为此类高饱和油藏的合理开发提供了技术支持。Because of high - saturated reservoir with high saturation pressure and small formation - saturation pressure difference ,the effects of water flooding are easily influenced by the exploitation system. Based on the actual characteristics of high -saturated reservoir,the development characteristics of high- saturated reservoir and the effects of multi -phase seep-age on the reservoir production capacity were studied by integrated application of reservoir engineering analysis and numerical simulation. On the basis,the influence of timing of water injection and injection - production ratio on development effect were analyzed in conditions of different development stages and various formation -saturation pressure difference. Thus,the limiting and resonable timing of water injection for high -saturated reservoir, and the reasonable injection -production ratio were determined. Research results provided technical support for reasonable development of the reservoir.

关 键 词：高饱和油藏 注水时机 注采比 压力恢复速度 

分 类 号：TE341[石油与天然气工程—油气田开发工程]