Effect of Interlayers on Bottom Water Advance in Blocky Bottom Water Gas Reservoir

YJ gas field is the location of the inner platform edge reef of the right bank block of Amu Darya River. The field consists of two gas fields, Block II and Block III. Block II is a bottom-water gas field controlled by structure, and Block III is a bottom-water gas field controlled by structure and lithology. Block II and III gas fields after production. Because there is no barrier between the gas layer and the bottom water, the gas field in Block II comes out quickly. Two Wells in Block III came out of the water later, but one well with a larger shelter distance came out first, while the other well with a shorter shelter distance came out later. The influence of interlayer on the cause of water discharge in gas field is analyzed through the analysis of interlayer and production dynamics. Due to the high condensate content of the gas field, in order to ensure the condensate production of the gas field and overcome the influence of gas field outflow, the operation measures and corresponding production distribution scheme of the gas field to control the bottom water and overcome the influence of gas field outflow on production have been put forward.