摘要
该文通过对青杠坪气田阳新统气藏各井的生产动态、出水时间、出水强弱及气田所处构造位置的综合分析，判明了该气藏地层水的运动规律、性质及水源；提出该气藏属弱水堵气藏，可用排水采气法大幅度提高采收率。在结合经济技术分析的基础上，提出了提高该气藏采收率的开发调整方案，经两年多现场实施，取得了明显增产效果，其中青２井已累计多产气１５００×１０４ｍ３，正常生产时间延长１年半，现仍在正常生产。
Based on a comprehensive analysis of production performance of wells,water breakthrough time,strength and structural position of the gasfield of Yangxin Series reservoirs in Qinggangping gasfield,principle of water flowing, properties and sources of formation water are identified.This reservoir belong to weak water blocking type and the recovery efficiency can be improved greatly with water drainage gas production.Combining with technical economical analysis a modified development program to enhance recovery is provied.Field practices of more than 2 years gain substantial incremental gas production.Among those well Qing 2 has 1500×10 4m 3 incremental gas production and is still producing normally after elongated production of one and a half years.
关键词
采气
提高采收率
实施效果
排水采气率
water blocking,threshold pressure,water drainage gas production,recovery efficiency
