Form A Complete Set Of Zizhou Gas Field Gas Recovery Technology Optimization Research And Application

Zizhou gas reservoirs with low porosity and low permeability,low pressure characteristics.As the field development time,the gas reservoir pressure drop,low yield and efficiency gas wells substantially increased due to low gas production,gas flow rate is slow,often wellbore fluid;gas hard continuous,stable production,can not effectively play well productivity can benefit.Horizontal wells and pressure while high, but the production process is easy to sand, ground equipment and pipelines for damage.Meanwhile,Zizhou gas field there are three groups cluster wells,as well group in the gas pressure,production,reservoir properties of difference,in order to avoid gas production caused by well interference,currently well group production methods as:intermittent,rotation system,severely restricted the capacity to play well group wells.Therefore,it is necessary to carry out gas production wells supporting technology and optimization of work systems,seeking solutions Zizhou gas field development technical methods and supporting effective technology,so as to achieve the purpose of enhanced oil recovery,and ultimately field scientific,efficient,sustainable development. Through the test, optimization the optimization of foaming agent selection; the dissertation also summarizes the velocity string wells, gas, mining under the current water ejector technology, cluster well group used ejector technology, DMFS-35-02surface antisand device applicability in ZizhouGas Field, the study found they has good effect in increasing gas liquid discharging efficiency, at the same time, continuous production, sand, increasing efficiency and so on, so it is recommended.