资源描述：
《欢喜岭采油厂管杆偏磨防治对策研究本科学位论文.doc》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、摘要本文从欢喜岭油田生产实际出发,较全面地分析了欢喜岭油田开发中后期后,出现杆、管严重偏磨的特点、偏磨原因及防偏磨对策;在对抽油机井井下杆管受力分析的基础上，结合欢喜岭油田抽油机井杆管偏磨的分布规律，从抽油机井泵径、含水率、沉没度以及抽汲参数对杆管偏磨的影响分析入手，得出了抽油机井的偏磨机理。一些区块油层压力下降导致油井供液能力下降，使泵挂不断加深，高含水、低沉没度状态下运行的抽油杆柱会发生“液击”现象，加大振动载荷，使抽油杆柱更易发生偏磨；一些注水较好区块油井采用大泵提液，油井采用较大的抽汲参数也会使抽油
2、杆柱的受力朝着容易发生偏磨的情况发展；含水的不断上升也使井下杆管工作状况逐年变差；随着油田的开发，偏磨程度在不断加重，偏磨井数也在不断上升，有效控制和预防油井的偏磨已经成为控制油田生产成本、实现降本增效的有效途径。抽油机井的防偏磨措施主要是采取扶正器、注塑杆等措施对抽油杆柱进行约束，应用耐磨材料改善抽油杆接箍和油管的耐磨性，或者优化油井工况改善抽油杆柱的受力等手段，实现对抽油机井偏磨的防治。关键词：欢喜岭油田；偏磨机理；防偏磨措施AbstractThispaperfocusesontherealproduc
3、tioninHuanxilingoilfield,analyzingtheappearanceofrodsandtubes,serioussidegrindingcharacteristics,partialwearcausesandcountermeasuresagainstsidewear.Basedonthestressanalysisoftherodsandpipesoftheundergroundpumpingwells,CombinedHuanxilingoilfieldpumpingwells
4、rodspartialabrasiondistribution,beginningwiththeinfluenceofpumpingwellspumpdiameter,moisturecontent,submergencedepthandswabbingparameters,andfinallywegetthePumpingwellspartialgrindingmechanism.Thedecreaseofreservoirpressureofsomeblockleadstothedecreaseofca
5、pacityfortheliquid,whichmakesthepumplinkdeeper,highwater,thesuckerrodrunningunderthelowsubmergencewillcausethephenomenonof"Liquidstrike"andincreasethevibrationload,whichmakesthesuckerrodsappeareccentricwearmoreeasily.Someblocksofoilfieldsthathaveabetterwat
6、erinjectionusealargepumptoextractliquid,andforceontherodstringdevelopstowardthesituationofeasytoappeareccentricwearwhenlargeswabbingparameterareappliedinsomeoilfields.Risingwaterhasalsomadeundergroundworkingconditionsworseyearbyyear.Withthedevelopmentofoil
7、fields,theextentofeccentricwearismoreandmoreseriousandalso,thequalityofwearwellrisesconstantly,socontrolandpreventionofpartialabrasioneffectivelyhasbecomeaeffectivewaytocontrolthecostinoilfieldsandrealizetoreducecostsandtoincreaseefficiency.Pumpingmeasures
8、ofpreventingsidewearmainlydependonconstraintsofsuckerrodandapplyingcoldresistantmaterialstoimprovewearresistanceoftubingandsuckerrodcouplings,andalsooptimizeoilwellworkingconditiontoimprovetheforceonthesucker
