The Application Of Vortex Tools In Bottom’s Drainage Of The Natural Gas Wells

With the depth of the oil field production and development，part of the oil field inChina has entered in the high water cut exploitation phase， in the rate of the moisturecontent of the gas production increasing year after year，gas well mining gas process oftenoccur with the phenomenon of the gas together with water production,and the rate of theproduction water in the gas well continues to pose a serious threat to increase natural gasproduction. And the back pressure is increased when the wellbore has a little liquid, thebottom hole liquid caused by the reduction of gas well’s gas production or even stop, aserious impact on the efficient development of gas fields, reducing the ultimate recovery ofgas wells of the gas reservoir. Therefore have to deal with the gas reservoir produced water.One of the effective measures is in the underground installation the instrument of thegas-liquid separator, the instrument of gas-liquid separator. The key of undergroundgas-liquid separation technology is the research of gas-liquid separator. is a necessaryprecondition for the overall system design, However, the theory at home and abroad of theunderground gas-liquid separator performance prediction, structural design, selection ofoperating conditions are far from perfect. Therefore, a systematic analysis of the structureof the gas-liquid separator to identify the separator gas-liquid separation efficiency factorsprovide the basis for the optimization design of separator structure, to develop new andefficient gas-liquid separator to improve the efficiency of gas-liquid separator,to improvesystem efficiency and economic benefits, has good practical value. On the basis of thegas-liquid two-phase flow theory, an exploratory study is that on one of the undergroundgas-liquid separator vortex tools, establishment of gas as the continuous phase, liquiddispersed phase three-dimensional flowmodel, use the computational fluid dynamicssoftware FLUENT, and use the second-order unsteady solver device to the numericalsimulation of the sub-air effect of the vortex tools. Optimization its structure size, comparemultigroup data to get the gas-liquid ratio of1:1000, the helix angle of50degrees theeffect is better. The result of this paper provide the theory foundation for the actualproduction of vortex tools’gas-liquid separation efficiency and optimizing the structuresize of the vortex tools,and lay the theoretical foundation for underground gas-liquidseparation.