裂缝型气藏水侵动态模拟研究  

Dynamic Simulation of Water Invasion in Fractured Gas Reservoir

作　　者：周旻昊 乐平[1] 郭春秋[2] 陈鹏宇 ZHOU Minhao;YUE Ping;GUO Chunqiu;CHEN Pengyu(State Key Lab of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China;Petro China Research Institute of Petroleum Exploration and Development,Beijing100083,China)

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500 [2]中国石油勘探开发研究院,北京100083

出　　处：《实验室研究与探索》2020年第12期104-109,共6页Research and Exploration In Laboratory

基　　金：中国博士后科学基金面上项目(2019M650965)。

摘　　要：阿姆河右岸气藏为复杂的海相碳酸盐岩气藏,储层低孔低渗,非均质性强,裂缝发育,水体活跃,再加上裂缝沟通水体,且水体大小具有不确定性,导致气井出水机理及出水动态规律复杂,出水问题严重。为此设计了基于储层岩心的气水两相流动模拟实验,运用正交试验方法,开展了影响阿姆河右岸气藏出水的3个主要影响因素:裂缝渗透率、裂缝贯穿程度和水体倍数的水侵动态分析,分析了不同地质因素下出水规律,得出了这3个影响因素对采出程度、平均水气比、见水时间、平均产气量和平均产水量影响程度的排序,为气藏治水提供了一定的参考依据。Amu Darya Right Bank gas reservoir is a complex marine carbonate reservoir,it is with low porosity and permeability,strong heterogeneity,fracture development and active water.In addition,the fracture connects the aquifer,and the aquifer size is uncertain,which leads to the complex mechanism and dynamic law of the gas well water production,and water production problem is serious.To this end,a simulation experiment of gaswater twophase flow based on the core of the reservoir is designed.Using orthogonal experimental method,the water invasion dynamic analysis of the three main influencing factors(fracture permeability,fracture penetration and aquifer water multiple)affecting gas reservoir water production is carried out,the water production laws under different geological factors are studied,and the ranking of the influence degree of these three factors on the recovery percent,average watergas ratio,water breakthrough time,average gas production and average water productionis obtained.It provides a theoretical basis for gas reservoir water control.

关 键 词：裂缝型 物理模拟 水侵规律 正交实验 

分 类 号：TE371[石油与天然气工程—油气田开发工程]