Study on production stability of heterogeneous water and gas well:Take QXZ gas reservoir in Block SYS as an example

At present, the stable production capacity evaluation of gas reservoirs is mostly numerical simulation, and the heterogeneity and water production of gas reservoirs are considered comprehensively. Taking QXZ gas reservoir producing well in Block SYS as an example, this paper optimized the reserves calculation method suitable for each producing well, and obtained the controlled dynamic reserves of each producing well. Based on this, the stable production ability evaluation was carried out, and the material balance method was modified to obtain the stable production ability evaluation method suitable for heterogeneous water producing gas reservoir.