The Study on the Calculation Method of Water Yield of the Condensate Gas Well with Pressure Gradient

The water yield of gas well is one of the important parameters to understand the production status. Because of the high wellhead pressure of gas well in Yingmaili field, the engineers can not directly sample to test the water content and mainly use the two-phase separator to measure liquid production and gas production. However, due to the limitation of the sampling position of the device, this method cannot precisely calculate the water yield. At present, the engineers can only rely on regular water production tests by the ground team to determine the water production of single well, but because of the high cost, the water production can't be measured continuously, so a theory method is in urgent need of calculating the water production. According to the actual situation in Yingmaili gas field, the author raises the calculation method of water yield of the condensate gas reservoir with well-bore pressure gradient data, gives the idea and method of calculation, develops the corresponding calculation procedure in the article, and calculates the water yield of the sixteen gas wells in the Yingmaili gas field, the results of which are consistent with actual situations, which shows that the method put forward in the article is reliable.