延缓和控制水平井底水脊进的均衡排液完井技术

底水非均衡脊进已成为制约底水油藏水平井高效开发的技术难题。从分析底水非均衡脊进的原因出发，提出了采用中心油管和带节流喷嘴控水筛管实现均衡排液控制底水的完井思路。根据势叠加、镜像反映原理以及质量守恒、动量守恒定律建立了油藏渗流模型和井筒压降模型，并由此推导出了中心油管和带节流喷嘴控水筛管的耦合计算模型，给出了两均衡控水方法的设计思路与方案评价指标，进行了设计实例分析。实例分析结果表明，下入中心油管或带节流喷嘴控水筛管可以提高流入剖面的均衡性，能起到延缓和控制底水局部快速突破的作用。 

Well Equalizing Flowing Completion Technology to Delay and Control Bottom Water Coning in Horizontal Well

Uneven bottom water coning in horizontal wells has become a technical problem restricting the development efficiency of bottom water drive reservoir.This paper describes the way to control the bottom water coning by stinger completion with screen pipe and throttle nozzles,which produces the equalizing flowing in wellbore.According to the principle of superposition,image theory,mass and momentum conservation, the reservoir filtration model and wellbore model were derived.The coupled model for stinger complet...