資源描述：
《鉆井新技術(shù)重點(diǎn)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、1.Horizontaldrilling：Horizontaldrillingistheprocessofdrillingawellfromthesurfacetoasubsurfacelocationjustabovethetargetoilorgasreservoircalledthe“kickoffpoint”(KOP),thendeviatingthewellborefromtheverticalplanearoundacurvetointersectthereservoiratthe“entrypoint”withanear-horizont
2、alinclination,andremainingwithinthereservoiruntilthedesiredbottomholelocationisreached.2.ExtendedReachDrilling：ExtendedReachDrillingisdrillinghorizontallyfromaboreholethatisbeganasaverticalhole.Bytheuseofangle-buildingassemblies,thedrillgraduallyassumesahorizontalattitudeanddril
3、lslaterallytheproductiveformation.It’slateraldepartureismorethantwiceoftureverticaldepth(TVD).3.MultilateralwellDrilling：Amulti-lateralwellisoneinwhichthereismorethanonehorizontalornearhorizontallateralwelldrilledfromasinglemainboreandconnectedbacktothatmainbore.4.Managedpressur
4、edrilling(MPD)：“anadaptivedrillingprocesstopreciselycontroltheannularpressureprofilethroughoutthewell”.Themainideaistocreateapressureprofileinthewelltostaywithinclosetolerancesandclosetotheboundaryoftheoperationenvelopedefinedbytheporepressure,holestabilityenvelopeandfracturepre
5、ssure.5.SlidingSteeringsystem:Slidingsteeringsystemadjustorchangethedrillingbit’sorientationbyusingdown-holeBenthousing(down-holemotor)whilethedrillingstringsareinnon-rotationstatus.6.RotarySteeringsystem:Rotarysteeringsystemadjustorchangethedrillingbit’sorientationbyusingdown-h
6、olesteeringtoolwhilethedrillingstringsareinrotationstatus.Duetothelimitationoftoolplacement,itlacksnear-bitgeologicparametermeasurement,thisformssignificantdifferencebetweenRotarysteeringandGeologysteeringsystem.7.Loggingwhiledrilling(LWD):Asystemwhichprovidesreal-timeloggingdat
7、afrommeasurementsmadenearthedrillbitduringthedrillingprocess8.Slimholedrilling:Ameasofreducingthecostofawellbydrillingasmallerdiameterholethaniscustomaryforthedepthandthetypesofformationstobedrilledthrough.Aslimholepermitsthescalingdownofallphasesofthedrillingandcompletionoperat
8、ions.9.GeologicalSteering:Usinggeologicalprinci
