Study On Drainage Gas Recovery Technology In SUXI Blocks

SuXi blocks is located in the Sulige gas field of West. With the development of gas fields in 2008, the well produced water resulting in the formation pressure drop.The pressure continued to decline resulting in lots of wells producing water.The production decline is due to falling wellhead pressure; it has a great influence on the productivity.The drainage gas recovery techniquehas widely used in SuXi blocks for many years.This technique is very useful for increase production, but the principles still need continuing research.Through the research of the thesis, including study on characteristics of water, gas well productivity, effusiondiscriminantmethod, wellbore flow,throttle tool,small diameter tubing,etc.This research will to build system of drainage gas recovery technology in SUXI blocks. It is in order to provid methodtoservices gas production.