f A Field Application with Liquid Surfactant for Production Optimization

Liquid loading in gas wells is a major concern that causes production reduction and shortening of the well life. Liquid loading arises when a gas well is unable to remove the produced liquids from the wellbore. Gas rates below the critical rate are insufficient to remove the liquid and lead to an accumulation in the wellbore which eventually might kill the well. There are various methods to deliquify gas wells, each of which can be implemented as the optimum method in different cases based on the well specifications. Most of these methods can be unsuccessful for highly depleted wells with low reservoir pressures and low flow rates. This study introduces a new field application of deliquification of a gas well in Turkey which is the first successful optimization application in the country through continuous liquid surfactant (foamer) injection. The study focuses on increasing the ultimate recovery of a highly depleted well with intermittent flow due to water buildup issue via unloading the accumulated liquid and producing gas continuously at a stable rate and therefore extending the well life.