欠平衡鉆井關鍵技術研究.pdf

1、西安石油大學碩士學位論文欠平衡鉆井關鍵技術研究姓名：樊楓申請學位級別：碩士專業(yè)：石油與天然氣工程指導教師：李琪楊波20121110英文摘要Subject：Practiceandapplicationofzhongyuanoilfield’sUnderbalanceddrillingtechnologyinSichuanYuanbaprojectN唧a吣mde蛆“時‘0FnanF們en弘g(靴Signn慧芝蘭塹鯉atIl舊￡竺絲掣Inst

2、棚ct。r：LiQi(SignatlIlle)左2絲2Yangbo(st弘atu噸肇紅ABS’I’ltAC’I’Underbalanceddrilling(UBD)technologybegantodevelopfrom1950s，whichwasalsocallednegativepressuredrillingtechnologyAndtheapplicationofunderbalanceddrillinghasbeenincre

3、asingathomeandabroadnowUnderbalanceddrillingisdifferentfromnormaldrilling：itisveryimportanttocontrolpressuredifferentialforUBD，anddownholeandgroundcirculatingsystemmustbewelldesignedIfpressuredifferentialistoohigll，itwou

4、ldleadtodrillingfault；ifitistoolowunderbalanceddrilling’Sperformancecouldn’tbegotnecorrelationtheoryandappliedresearchofunderbalanceddrillinghasalreadybecomeoneofhiejllightstudyfordrillingengineersBasesonagreatdealofdema

5、sticandabroadinformation，thisarticlehasagreatsignificanceduringdrillingproject，itsystematicallyexpoundsunderbalanceddrillingte：chnologyFirstdescribestheconceptofunderbalanceddrilling，typeandthedevelopmentfiend，thendescri

6、besunderbalanceddrillingtechnologyunderbalancewellcompletion，traderbalanceddrillingequipmentunderbalanceddrillingengineeringdesignandtheunderbalanceddrillingdevelopmentdirection，atlastthroughtheunderbalanceddrillingproje

7、ctinSichuanYuanbadescribestheproblemandsolutionduringunderbalanceddrillingTmswillhelptoprotectreservoirimprovedrillingsuccessrate，reducedrillingcostandpreventaccidentsduringunderbalanceddrilling，isofgreatsignificanceKeyw