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1、探究抽油机井杆管偏磨的预防摘要:文章分析了抽油机井杆管磨损的主要原因,井斜、管柱结构、杆管组合及生产参数不合理是造成杆管偏磨的主要因素,并提出了合理防治对策。Abstract:thearticleanalyzesthepumpingWellsrodtubewear,themainreasonsforthedeviation,thestringstructure,therodtubecombinationandtheunreasonableproductionparametersisthemainfactorcausingrodtubeeccentricwear,an
2、dputforwardthereasonablecountermeasures. 关键词:抽油机;井杆管;偏磨Keywords:pumpingunit;Welltubebar;Eccentricwear 近年来,抽油机偏磨井数量逐渐增多、分布广泛,抽油机井表现出来的抽油杆与油管之间的磨损现象日益严重,其磨损现象主要表现在管杆断、裂、漏问题上。这样就增加了作业维护的工作量,偏磨导致作业频繁,免修期短,作业费用上升,采油成本高,综合效益低。为此,本文分析了抽油机井杆管磨损的主要原因,并提出合理防治对策,对于提高油田开发效益和采收率具有指导作用。Eccentr
3、icwearwellinrecentyears,thenumbergraduallyincreased,widelydistributed,pumpingunitWellsofthewearbetweensuckerrodandtubingphenomenonisincreasinglyserious,themainwearphenomenononthepiperodbreak,crack,leakproblem.Thusincreasingtheoperationmaintenanceworkload,eccentricwearfrequentlyleadtoho
4、mework,undergraduatedegree,shorterperiod,risingcostofoperation,highproductioncost,lowcomprehensivebenefits.RodpumpingWellsareanalysedinthispaper,thewearofthemainreasons,andputforwardreasonablecountermeasures,toimprovetheimportantguidingsignificanceforoilfielddevelopmentefficiencyandoil
5、recovery. 1抽油机井杆管偏磨的主要原因分析OneofthemaincausesofrodpumpingWellstubeeccentricwearanalysis 1.1井斜是造成抽油井管杆偏磨的主要原因1.1holedeviationisthemaincauseofeccentricwearoilwellpipestem 在井斜的作用下,由于井筒不垂直,油管上部接在油管挂上,在油管重力的作用下,油管必然弯曲。而且抽油杆两端由于分别由井口盘根盒与泵活塞限制,居油管中心,在井斜的影响下,抽油杆在其重力作用下,发生弯曲,使杆管出现偏磨。Underthea
6、ctionofholedeviation,duetothewellboreisnotvertical,tubinghangupsideintheoilpipeline,theoilpipeundertheactionofgravity,tubingbending.Andsuckerrodendswithrespectivelybywellheadpackingboxandthepistonpump,tubingcenter,undertheinfluenceofholedeviation,suckerrodunderthegravity,bent,andmaketh
7、epiperodeccentricwear. 1.2杆管配合使用不当是造成抽油机井杆管偏磨的另一重要原因1.2rodiscausedbyimproperpumpingunitWellsrodtubetogetherwiththeeccentricwearofanotherimportantreasons 抽油杆与油管尺寸配合过小,会增加相互摩擦的几率,造成管杆的偏磨。特别是在造斜点附近,抽油杆的弯曲度大,管杆易于接触,在相互运动的情况下产生摩擦,最容易产生偏磨。Suckerrodandtubingsizefittoosmall,willincreasethe
