APPLICATION OF DRAINAGE GAS RECOVERY TECHNOLOGY IN SULIGE GAS FIELD AND ITS DEVELOPMENT

Low-pressure,low-yield and small water were typically features of Sulige gas field.In recent years,based on the extensive research and testing at the early stage,a series of drainage gas recovery technologies suited for Sulige gas field were formed.In producing water gas well,the main drainage gas recovery technology was foam drainage,accessorial measures were coiled tubing drainage and plunger gas-lift drainage gas recovery technology.In stop production gas well for liquid loading,put back on production technology adopted the compressor gas-lift and high pressure nitrogen gas-lift drainage gas recovery technology.The application of drainage gas recovery technologies effectively ensured the continuous and stable production of producing water gas well.The suitable conditions and application status quo of drainage gas recovery technologies were presented in Sulige gas field,combining the actual cases of Sulige gas field,the improvement and development direction of drainage gas recovery technologies were suggested.