超深水钻井隔水管动力分析理论研究与数值模拟.pdf

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1、第14卷第6期船舶力学v01．14No．62010年6月JoumalofShipMechanic8Jun．2010ArticleID：1007-7294(2010)06-0596一10TheoreticalInVestigationandNumericalSimulationofDynamicAnalysisforUltra—deepwaterDrillingIUsersCHANGYl∽眦-j慨，CHENGIlo—m流g(conegeforO鼬。陀Engineering明ds如哆Enginee渤

2、g，uIlive玛ity“Pe酬eum，DongyiIlg25706l，chi腿)Abstract：Withtlledrillingopemtionsmovingintodeepwaterandultra—deepwater，risellsexhibitmoreseVeredyna“cresponseexcitedbymndomwave8，oceancurrentandthenoatingvesselmo-tion．Inthisstudy，mathematicalfo珊ulationoflate

3、ralvibration，modelingtechniquesof8tmc-tumlandenvironmentalloadsindynamicbehavioranalvsisaswell髂themethodsofnonline盯dynamicanalysisforthedeepwaterdrillingrisersareinvestigated．’Ihedif亿renceofthemethodsincalculationefficiency，accuracyandpracticalapplic

4、ationisstudied8ndcompared．Thealgo—ritllm粕dthedetailednowchartofthenondeteHnini8ticdynamicanalysisoftlleriser8usingABAQUSintimedomainareintroduced．Anexamplei8presentedwhichillustratestheefkctofVesselmotionboundaryconditionon—serdynamicped'0瑚ance．Thest

5、udyshowstllattimedo-mainnondeterIIlinisticanalysi8isthemostaccuratebutitistime—consuming，andonlylinearAIRYwavetlleoryc粕beemployedinit．Theoretically，time—independentpart“thedynamicre-sponsecausedbycun．entdoesnotequaltIlestaticresponsecausedbyit．Anappl

6、icabledynamicanalysismethodtakesVesselmotion肌dwaVeastllesources“dymrnicanalysis，ignoringthecontributionofcurrenttodyllamicresponse．Vesselmotionandirregularwavearethemaindy-n锄icload0ftheriserdynamicresponse，however，themostsignificantportionofthedynami

7、cbe_haviorw船causedbymotionsofthedrillingvessel，ratherthanbywaveforcesontheriser．Waveforcesonlyactonthelocalpartoftheriserinwavezone．Longte唧driftmotionofthevesselhasmajorinnuenceondeepwaterriserdynamicperfb珊ance．Keywords：deepwater删ingnser；dy肋lnicbeha访

8、Or；nonde咖j11is廿canalysis；a瑚lysiste删qu憾；computa石onalmethodsCI。Cnumber：P75D帕m1蚰tcode：A1IntroductionnoatingplatfomsanddriUingVesselsareeconoⅡlicallyattractiVef．ordeepwaterdriUing．DeepwaterdriⅡingrisers(seeFig．1)arevitalstmctureconnectingaweUheadattllese