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时间:2019-06-25
《大斜度井钢丝投捞式气举采油技术_宋显民(1)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第35卷第5期石油学报Vol.35No.52014年9月ACTAPETROLEISINICASept.2014文章编号:0253-2697(2014)05-979-08DOI:10.7623/syxb201405020大斜度井钢丝投捞式气举采油技术宋显民1,2122222刘清友孙成林肖国华胡慧莉王金忠靳彦卿(1.西南石油大学机电工程学院四川成都610500;2.中国石油冀东油田公司钻采工艺研究院河北唐山063004)摘要:钢丝投捞式气举采油技术可以在不动管柱情况下实现气举井检阀目的,但目前技术不适应斜度较大井段投捞需要,笔者分析了目前技术的
2、投捞运动过程,建立了投送过程关键阶段的系统能量关系式,分析了目前气举投捞工艺对斜度的适应性,建立了适合大斜度井段的井下投捞运动方式和系统能量关系式,确定了适合大斜度井投捞需要的下冲导向机构、凸轮锁定机构、整体投送器机构、投送器阀底支撑机构等技术方案,研制了大斜度井投捞式气举阀、工作筒、投送器等主体工具,形成了大斜度井钢丝投捞式气举采油技术,经系统能量关系式分析、室内实验和现场测试等过程,说明新工艺满足69°以内井斜段的投捞需求,矿场上推广实施6口井。关键词:大斜度井;气举;投捞;系统功能关系式;投送器;工作筒;气举阀中图分类号:TE931文
3、献标识码:AGas-liftproductiontechnologyofwirecastingandfishinginhighlydeviatedwells1,2122222SongXianminLiuQingyouSunChenglinXiaoGuohuaHuHuiliWangJinzhongJinYanqing(1.CollegeofMechanicalandElectricalEngineering,SouthwestPetroleumUniversity,SichuanChengdu610500,China;2.Drillingan
4、dProductionTechnologyResearchInstitute,PetrochinaJidongOilfieldCompany,HebeiTangshan063004,China)Abstract:Gas-liftproductiontechnologyfeaturedbywirecastingandfishingcanachievegas-liftvalve-testingwithoutmovingproduc-tionstringinthedownhole.However,itispresentlynotadaptedto
5、therequirementofcastingandfishinginhighlydeviatedwells.Inthisstudy,deliverymovementprocessofthecurrenttechnologyisanalyzedtoestablishtherelationofsystemenergyatkeysta-ges.Adaptabilityofthegas-liftcastingandfishingtechnologytowelldeviationisassessedtoestablishcastingandfish
6、ingmovementpatternofgas-liftvalvesandtheformulaofsystemenergyrelationsuitableforhighlydeviatedwells.Technologicalschemesadaptedtocastingandfishinginhighlydeviatedwellsaredeveloped,includingundershootingguidemechanism,camlockingmechanism,wholedeliverymechanism,anddeliveryva
7、lvebottomsupportingmechanism.Additionally,themajortoolssuchasgas-liftvalve,workcylinder,anddeliverydevicearedevelopedforhighlydeviatedwellstoformthegas-liftproductiontechnologyfeaturedbywirecastingandfishing.Verificationanalysisoftheenergyrelationformulacombinedwithlaborat
8、oryandfieldtestsshowsthatthepro-posedmethodmeetstheneedsofcastingandfishingwithin69°ofwel
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