Strategic study of rational exploitation of edge water drive gas in zizhou gas field

With the continuous further development of water-drive gas reservoir,gas well producing water almost becomes an inevitable problem during the process of exploiting water -carrying gas reservoir.Watering out of gas wells not only easily leads to the gas well productivity falling quickly,but also may leads to the decrease of the well control dynamic reserves and the increase of the difficulties of production management.Controlling the water invasion increase rapidly is the most important problem that water-drive gas reservoirs faced with.This article is mainly about a single well concept model being built based on the dominating geologic features.Adopting numerical simulation method to study the distance between gas well and edge-water and how the different gas well production systems influence on the time of water invasion as well as the time of stable production.Through studying,we can conclude that utmost distance from edge-water and optimization allocation of single well, thus improving the recovery efficiency of the gas reservoir.