Evaluation On Production Characteristics And Development Indexes Of Water Producing Gas Wells In Sulige Field

With the increasing of water producing gas wells in Sulige gas filed,it turns out to be very important to reveal the influence of water on gas well.Therefore,this paper investigates water producing gas well from two aspects,producing characteristics and development indexes,to provide theory basic for water producing gas well development.Firstly,micro experiments,numerical simulation and production analysis method are used to determine the water source for Sulige gas field.Then,numerical simulation match and single-point data are combined to obtain single well water producing data.Thirdly,formation pressure,decline rate and single well reserve are used to evaluate the development efficiency of water producing well.Finally,numerical simulation method is used to evaluate the influence of water on gas wells.The results reveal that the water source of Sulige gas field is mainly pore water instead of edge water or bottom water.Besides,water producing will decrease the formation energy and lead to the decreasing of productivity.Finally,the well with high productivity should produce with low production ratio.