苏里格气田单井排水增产新模式探讨

苏里格气田单井排水增产新模式探讨_采输技术石油工程建设苏里格气田单井排水增产新模式探讨刘子兵’，薛岗’，刘鹏超1．西安长庆科技工程有限责任公司，陕西西安7100182．大丰丰泰流体机械科技有限公司，江苏盐城2241O0doi：10．3969／j．issn．1001—2206．2015．03．013摘要在气井开发过程中，随着地层产能的下降，气体携液能力变差，严重影响了含水气井的有效开发。文章提出采用一种新型的安装在单井井口的同步回转一体化排水增压装置，对油管进行抽吸，降低井口油压，增大油管与地层、套管的压差，通过套气喷发，带出大量积液，达到增产目的。苏里格气田的现场试验表明：该技术可大幅度提高气体流速，打破井下原液位平衡，气体携液能力大大增强，大幅度增加气井产气量和延长稳产时间。关键词Inthedevelopmentprocessofnaturalgas，theabilityofgascarryingliquiddecreaseswiththegasproductivityreductionfrOmstrata．whichseverelyaffectsthedevelopmentefficiencyofgaswellscontainingwater．Thispaperadoptsanewtypeofsynchr0nOuslyrotarymulti-phasepumpinstalledinthesingle—wellwellheadtopumpupnaturalgastothesurface．ThepurapcanreducetheoiIpressureofwellhead，increasethepressurebetweenoilpipeandstratum，alsothepressurebetweenoilpipeandcasing．Alongwiththeeruptionofnaturalgas，alargeamountofliquidflowsout．Inthisway，theproductionofnaturalgasincreases．ThetestinSuligeGasFieldshowsthatthistechniquecangreatlyimprovethegasflowvelocity，breaktheoriginalbalanceofundergr