Research On Production Dynamics And Reasonable Development System Of Water-producing Gas Well Sin Suxi

With the expansion of the scale of gas field development and construction,and the prolongation of production of gas well,the number of water-producing gas well has gradually increased.It seriously threatens the stability of the production of gas wells and makes the gas production drop sharply.In serious cases,gas wells have been flooded and discontinued,greatly reducing gas fields.Therefore,it is necessary to carry out analytical work on gas wells,effectively develop countermeasures,and improve the final yield of gas wells.Based on previous theoretical research and practical experience,starting from the geological characteristics of the west area gas reservoir in the Sulige gas field,the paper specifies the type of the water of the gas well production,and it concludes that the formation water is mainly calcium chloride type,and the main controlling factor of formation water is movable water;And it integrates the dynamic data of the production well,carrys out the investigation of the well produced water and gas wells,sums up the production characteristics of the water producing well,perform gas well declining production analysis and verify gas well productivity,the research shows that: the production of water-producing gas wells has a rapid decline in production at the initial stage,and the verified unimpeded flow is less than the unobstructed flow of test gas;Through the numerical simulation of gas wells in a typical block,the gas well recovery degree and remaining resources in the research block is analyzed;By combining the critical fluid carrying flow of gas wells,water producing gas wells are reclassified,and it is divided into three types: continuous liquid well,intermittent liquid well and accumulation well.Meanwhile,reasonable production of different types of gas wells and corresponding drainage and gas recovery process measures are given,in the early stage of production with continuous fluid wells,the rational production should be optimized.and when the gas production fluctuates greatly,the drainage and gas recovery measures based on bubble platoons are adopted.The intermittent fluid wells are preferred for drainage and gas recovery of the velocity string.And the effusion wells are recommended piston gas lift drainage gas recovery measures;...