旋转导向钻井闭环监控系统理论与技术研究

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1、西安石油大学硕士学位论文旋转导向钻井闭环监控系统理论与技术研究姓名：彭元超申请学位级别：硕士专业：油气井工程指导教师：李琪20070515英文摘要Subject：StudyontheTheoryandTechnologyofClosed-loopMonitoring&ControllingSystemoftheRotarySteeringDrillingSpeciality：Name：Instructor：ABSI。RACI’RotarySteeringClosed—LoopDrillingtech

2、nologyisoneofanewtechniquethatnowadaysmanycountriesdevelopingit,whichunnecessarychangethedrillstringassemblyandsteeringtoolinoncehole．but∞ncontrolwelltrajectorywhiledrillingdependontheiustructionregulating，andalsoCallachievebuildingangle，increasinghole

3、angle，maintainingholeangleordecreasingholeangleaccordingtorequestinonerun,sothatthewelltrajectoryCallsmoothlyandaccuratelyenterthetarget．TIlishassatisfiedthemodemdevelopmentofPetroleumExploration&Development,especiallyfortheneedofthecomplexarchitecture

4、wellandcomplexgeologyistheprioritystudiesanddeveloptrendinmodemsteeringdrilling．n圮thesisstudiedClosed-LoopinformationflowandcontinuouscontroltechniqueofRotarySteeringDrilling．First,analyzedthepresentsituationathomeandabroad，andexpoundedsignificanceandn

5、ecessityofdevelopingRotarySteeringDrillingtechnologyinOurcountry．SummarizedthecompositionandoperatingprincipleofModulateRotarySteeringSystem；AnalyzedthecontroltheoryofRotarySteeringClosed-LoopDrilling；11碡mainresearchisdownlinkingcommunicationofClosed-L

6、oopinformationflow,contraposedtothestudiedModulateRotarySteeringTool，ascertainedthedownloadwaythatUSedrillingfluidnegativepulsewhichdischargerateisorderregulation-controlledasthecontrolcommand．Thinedescending-ascendingnotationsnegativepulseencodingcomb

7、inationisoptimizedasthedownloadinstructiondrillingfluidnegativepulse,andhavecompiledagroupofdownloadinstructionencodethattheinstructiontransmissiontimeshort、accurateidentificatioandoccupythesmallspaceFinally,accordingtoclosedloopdrillingcontroltheoryan

8、dthesitesurfacemonitoringprinciple，developedthesitesurfacemonitoringand3Dvisualizationsoftwaresystemwhichimegratedtrackdescription,anticoilisioncalculation,trajectorycontrol，trajectoryamendmentdesign,andasadministrativeanddirectioninfor