Development Of Drainage Gas Recovery Technology

Sulige Gas Field development wells has entered the early part of the production, later,with low production and low efifciency wells increasing year by year, effusion is worsening,seirously affect the normal production of gas well and ultimate recovery. Drainage gasrecovery measures can effectively discharge the well bore fluid, improve the production of gaswells, is supporting the production of measures for later development of Sulige gas field.The Sulige gas field has a large area of the gas, the foam drainage velocity stirng drainagegas recovery and so on a number of measures, and the test gas recovery steps eddy currenttools model drain out，along with the gradual increase of digital management in Sulige gasfield, development of drainage gas recovery by digital technology, and achieved good results,and accumulated rich experience of production management in the late gas well.In this paper, through the well bore flow studies, and get the general judgment method ofwellbore fluid, the possibility of producing liquid bottom hole liquid loading is analyzed, andputs forward several common methods of judging the down hole fluid*The drainage of theSulige gas field third gas production plant has been carired out in gas production process wereanalyzed and the applicability evaluation, focusing on the velocity string drainage gasrecovery expeirments according to different wells, each well gas production and comparedbefore and after the experiment, preliminary economic analysis, optimization of well selectioncondition from several aspects.