Water Out Characteristic And Water Control Measure Research Of Jialingjiang Formation Reservoir In Shunan Area

The watered gas reservoir has been researched for a long time,during the development of gas in Sichuan Basin.But the type of gas reservoirs is more and more complex,and people have different cognition of the gas field water,so there is no powerful direction in the watered gas reservior's production.According to the different features of water out,it is necessary that the effective water control measures be began to research.The research shoulde based on the long development history and previous research ,and rich water control experience in various type of actived watered gas reservoirs in ShuNan Area.According to the particularity of water reservoir,there has been some classical theory and method.In recent years, there are some new technologies.the development research of watered reservoirs has developed a series of characteristic technology in Sichuan Basin.This paper is based on reviewing the research,considering the development corse of watered reservoirs and feature of technique change,the development of Jialingjiang Formation's reservoirs could be divided into 4 stages in Shunan Area,that is water controlling,passive diacharging water,active discharging water,water controlling of entire reservoir.This paper established a index system which could judge water invasion'degree of Jialingjiang Formation's watered reservoirs,and analyzied 15 indexes of production performance,then proposed 7 key indexes from them,the gas production could be descried quantitatively by the index system.So the water invasion's degree could be divided three classes,they are strong,less strong,weak.The main influencing factors of water invasion are comprised of static geology and production performance,after it is analyse in depth that the characteristic of water out and mechanism of water invasion and the effect of water controlling about the typical gas reservoirs.Thus the paper puts forward the thread of water controlling which directed at the fracture porosity reservoir of Jialingjiang Formation in Shunan Area.This paper is not only further extend the technology and method of watered reservoir's development,but also have great significance to effective water controlling for the type of reservoir.