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1、摘要在油田牛产中使用的管具很多,包括油管、套管等等。油井作业结束后,油管和套管或多或少会沾满油污、水垢和氧化合物,影响下一次的使用。若继续使用,则会是油出牛产时间增加而影响到经济效益。据考证,一个年产200万吨的小型油出,每年需要修复的油管约17万根,每根油管约500元,可以看出如果不修复,这将大大增加油田开发成木。油出开发过程中引入了油管等管具的清洗流程,从而提高其经济效益。油管的清洗方法也很多,主要的有加热清洗、化学剂清洗、物理清洗三大类。从以往的清洗经验得知,加热清洗和化学清洗对环境的影响很大.且效率不高。为了改善清洗效率和质量,将高压水射流清洗技术引入了油出牛产中
2、。高压水射流清洗在清洗过程中,对环境没有污染,对污垢的清洗能力较强,是一项理想的新型清洗技术。在油田清洗中引入高压水射流清洗技术后,清洗时间明显缩短,清洗质量改善。木文将对高压水射流清洗技术的一系列流程进行研究,基木包括清洗理论的研究、水射流清洗工艺等方面。在充分理解其工作机理的基础上,找出影响水射流清洗的效率问题,并提出改善途径。通过合理兀配清洗系统参数,提高清洗效率和质量,并在计算流体流动力学(CFD)对所选参数的清洗效果进行模拟。模拟结果表明参数匹配基木合理,可以满足清洗要求。关键词:油管;油管清洗;高压水射流;清洗工艺;数值模拟AbstractInoilfield
3、hasusedinproduction,includingthetubecoiledmany,casing,etc.Aftertheoiloperation,tubingandcasingmoreorlessoily,scaleandoxygencompounds,affectingthenextuse.Ifyoucontinuetouse,itwillbetimetoincreaseoilproductionaffectstheeconomicbenefits-Accordingtoresearch,anannualoutputof2000000tonsofsmallo
4、ilfields,pipelineneedstoberepairedeveryyearabout17million,thepipelineofabout500yuaneach,canbeseenthatifnotrepaired,itwillgreatlyincreasetheoilfielddevelopmentcosts.Inoilfielddevelopmentprocesshasintroducedthepipetubecleaningprocess,thusimprovetheireconomicbenefits.Cleaningmethodisalsoalot
5、oftubing,andtheyareheatedcleaning,chemicalcleaning,physicscleanthreecategories.Learnedfrompreviousexperienceofcleaning,washingandchemicalcleaningofheatingagreatimpactontheenvironmentandinefficient.Inordertoimprovetheefficiencyandquality,cleaningofhighpressurewaterjetcleaningtechnologyintr
6、oducedinoilfieldproduction.Highpressurewaterjetcleaninginthecleaningprocess,noenvironmentalpollution,dirtcleaningability,isanidealnewcleaningtechnology.Introducedintheoilfieldcleaninghighpressurewaterjetcleaningtechnology,cleaningtimewasshortenedtoimprovecleaningquality.Thisarticlewillhig
7、h-pressurewaterjetcleaningtechnologytostudyaseriesofprocesses,thebasictheoreticalresearch,includingcleaning,waterjetcleaningprocessandsoon.Inthefullunderstandingbasedontheworkingmechanism,affectingwaterjetcleaningefficiency,andputforwardimprovingways.Throughtheratio