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时间:2017-11-30
《冀东油田水平井机械卡水技术》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31卷第6期石油钻采工艺Vo1.31No.62009年12月0ILDRILLING&PRODUCTIONTECHNOLOGYDec.2009文章编号:1000—7393(2009)06—0119—05冀东油田水平井机械卡水技术张立民’刘清友(1.西南石油大学,四川成都610500;2.冀东油田采油工艺研究院,河北唐山063004)摘要:随着开发的深入,冀东油田部分水平井出现了高含水问题,由于水平井井身结构复杂、井斜大,侧钻井油层段井眼尺寸小,常规的机械卡水工艺无法实现卡水,而化学堵水费用高、施工周期长、风险大,为此,根据冀东油田常规水平井、侧钻水平井的不同井型和井身结构特点,
2、研究了常规射孔和筛管完井水平井的单双卡技术,同时开发了小井眼尺寸的悬挂073mm、088.9mm、O101.6mm尾管完井的侧钻水平井单双卡技术,研制了外径70mlTl、54mm两个系列的小直径卡水工具系列,形成了水平井卡水施工的配套施工工艺,对水平井大斜度井段采用桥塞加水泥封层的复合卡水工艺进行了试验。该研究成果对国内类似复杂结构水平井进行卡水作业具有借鉴意义。关键词:水平井卡封;单卡与双卡;尾管内卡封;复合封层;机械卡水中图分类号:TE358文献标识码:AWaterpluggingtechnologyofhorizontalwellinJidongOilfieldZHANG
3、Limin一,LIUQingy0u(1.SouthwestPetroleumUniversity,Chengdu610500,China;2.ResearchInstituteofOilRecoveryTechnology,JidongOilfield,Tangshan063004,China)Abstract:Withthein—depthdevelopment,somehorizontalwellsinJidongOilfieldhavehighwatercut.Horizontalwellsfeatureincomplexwellstructure,highdeviati
4、on,andsmallsizeofwellboreinthesidetrackdrillingsection,SOconventionalmechanicalwaterpluggingtechnologycannotbeused.Chemicalpluggingwhichischaracterizedbyitshighcost,longconstructioncycleandhighriskcannotbeusedto.Tosolvetheproblemofhighwatercutinhorizontalwells,accordingtothedifferentwelltype
5、sandcharacteristicsofwellstructureofconventionalhorizontalwellsandsidetrackdrillinghorizonta1wellsinJidongOilfield,singleanddoublepluggingtechnologiesaredevelopedforhorizontalwellswithconventionalperforationandscreencompletion.Systematicsmall—diameterwaterpluggingtoolswithdiametersbeing70mma
6、nd54mmrespectivelyaredeveloped.Systematicwaterpluggingtechnologiesinhorizontalwellareformed.Complexwaterpluggingtechnologiescombiningbridgeplugandcementzonalisolationaretestedinhighlydeviatedsectionofhorizontalwells.Thesuccessfuldevelopmentofwaterpluggingtechnologyhasuniversalsignificancetos
7、olvetheproblemofwaterplugginginsimilarhorizontalwellswithcomplexstructureinChina.Keywords:waterpackingofofhorizontalwell;singleanddoublepackingoff;packingofinliner;complexsealinglayer;me—chanicalwaterplugging近年来在冀东油田大规模应用水平井、侧钻水平是油层以上采用O139.7min、O1
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