Well Performance Evaluation and Liquid Loading Management Planning in Well-X of the Pagerungan Field Kangean Energy Indonesia Ltd.

Liquid loading problems are very prone to occur in gas wells because of a drastic decrease in reservoir pressure that results in a phase change from gas to liquid so liquid accumulates and causes gas to be unproductive. To overcome the liquid loading problem, foam injection can be done to increase the production rate. In determining well performance, well test data is collected using EMR surveys, reservoir characteristics, and well operational data to analyze the performance of Well-X. Nodal analysis is performed by modeling the well as a system consisting of reservoir zones, perforations, production lines, and chokes. Subsequently, this model evaluates various important parameters such as gas production rate, wellhead pressure, skin and water gas ratio (WGR). After performing nodal analysis, the well performance and problems such as liquid loading will also be known. X-well has an optimum production rate of 0.79 MMSCF/Day. The small production is caused by several factors, one of which is liquid loading. To overcome this, we can simulate if we inject foam into the production well. The simulation was carried out with the help of software and obtained the optimum production rate after foam injection of 1.43 MMSCF/Day. It can be concluded that by injecting foam, it will be able to handle the liquid loading problem and will increase the gas well production rate than before.