Techniques for Unloading and Gas Production by Gas Lifting in Low Pressure Gas Wells Used in Wenliu Oilfield

In consideration of the situation of high recovery percent,low pressure in gas reservoirs;severe wellbore liquid loading in the gas reservoirs of Wenliu Oilfield,a matched technique for enhanced production of unloading and gas producing by gas lifting is implemented,which includes half-closed gas lifting,gas reservoir protection in low pressure gas wells and unloading and gas producing by gas lifting in high pressure gas wells,and obvious effects are achieved,by which the problems of long-term and low-efficient production of low pressure gas wells are solved in Wenliu Oilfield,an effective way is provided for high efficient production and enhanced gas recovery in gas recovery in the same kinds of gas reservoirs.