摘要
2014年11月,XX区块开始钻降。钻降前,含水达到95.86%,为特高含水阶段。钻降开始后,采出井含水有不同程度的下降。应用周期注水的机理,从平面上和纵向上,解释了含水下降的原因,并探讨了特高含水期,改变水井的工作制度,提高波及体积,降低含水,挖潜剩余油的可行性。
Since November 2014,XX block began to drill.In order to reduce formation pressure,injection Wells in this area are closed.Before closing,the watercut of this block reached 95.86% which is ultra-high watercut state.After closing,watercut presents different degree decline.Using the mechanism of cyclic waterflooding,from the plane and vertical,explains the reasons of watercut decline.During ultra-high watercut period,changing the working system of injection wells can improve the swept volume,decrease watercut and drive residual oil.
出处
《内蒙古石油化工》
CAS
2016年第8期71-72,共2页
Inner Mongolia Petrochemical Industry
关键词
特高含水
钻关
周期注水
剩余油
Ultra-high watercut
Shut-in wells during drilling period
Cyclic waterflooding
Residual oil
