浅谈多油层笼统注水合采的层间干扰问题  

Talking about the Interlayer Interference Problem of Multi-oil Layer Generalized Water Injection

作　　者：王旭刚 Wang Xugang(Xi'an Shiyou University,Xi'an710065,China)

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《云南化工》2018年第12期126-127,共2页Yunnan Chemical Technology

摘　　要：储层各层间存在非均质性。在笼统注水合采过程中,由于各层物性参数的不同将导致地层压力不平衡,导致发生层间干扰现象。层间干扰使得流体渗流状态发生改变,每层的地层压力、注水量、渗流速度、含水率、油水前缘、见水时间等都会发生变化。层与层之间也会由于压力的差异而发生窜流,严重影响着最终采收率。通过分析可能会导致多油层笼统注水合采时发生层间干扰的因素,调整工作制度来降低层间干扰对采收率的影响,从而提高效益。There is heterogeneity between the reservoir layers.In the process of general water injection and extraction,due to the different physical parameters of each layer,the formation pressure will be unbalanced,resulting in interlayer interference.Interlayer interference causes the fluid seepage state to change,and the formation pressure,water injection volume,seepage velocity,water content,oil-water front,and water seepage time of each layer will change.Turbulence also occurs between the layers due to pressure differences,which seriously affects the ultimate recovery.By analyzing the factors that may cause inter-layer interference in the multi-oil layer general injection of water,the working system is adjusted to reduce the impact of interlayer interference on oil recovery,thereby improving efficiency.

关 键 词：笼统注水 合采 非均质性 地层压力 层间干扰 

分 类 号：TE343[石油与天然气工程—油气田开发工程]