Method for pressure dynamic testing of Kela 2 gas field

Kela 2 gas field,as abnormal overpressure gas field,is the main gas field of west-east gas transmission.For avoiding risk,test can’t be done by putting manometer in the middle of production layer.Aim at monitoring production performance of Kela 2 gas field,well head test is done by using high precision electronic manometer in the gas field.Well testing interpretation of pressure recovery,well testing interpretation of productivity and monitoring of wellhead gas leaking out are done by average temperature and pressure method that converts parameter of wellhead test to deep medium layer.It shows that,the method adapts to abnormal overpressure gas field environment of Kela 2 gas field.Productivity calculation can be done by testing results and interpretation,which provides productivity evaluation for gas field stability.Concrete position of gas leaking can be detected by monitoring for high temperature and high yield gas well,which improves dynamic monitoring level for Kela 2 gas field.