苏里格气田苏20区块气水关系研究

苏20区块是苏里格气田近几年投入开发的重要区块,伴随开发的不断深入,局部生产井出现了不同程度的产水现象。为进一步提高油气开发效率,通过引入水文地质学理论和方法,对地层水的化学性质进行了分析,利用矿化度和水化学特征系数(变质系数、脱硫系数、成因系数)等判别标志参数对产出水的类型进行了划分,系统研究了苏20区块岩性气藏的气水分布规律。认为产出水是天然气运聚成藏的产物,其分布受生气强度、砂顶微幅度构造、藏内温度、压力条件、天然气充注程度和储集层质量控制。

Study on gas-water relation of Su 20 block in Sulige Gasfield

Su 20 block in Sulige Gasfield has been a major zone that has been brought into development in recent years.As the exploration is continuously developing in great extent,the phenomenon of water production exists to some degree in some local producing wells.For raising the efficiency of oil-gas exploration further and by introducing the theory and methods of geohydrology,the chemical property analysis was done to the formation water,the types of the produced water were classified with distinguishing mark par...