脐带缆深水安装的参数影响分析.pdf

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1、第16卷第3期船舶力学Vol·16No·32012年3月一—JournalofShilriMechanics—Mar．2012一————————————————————————————————————————————————————————————————————一一ArticleID：1007—7294(2012)03—0226-10ParametricInfluenceAnalysesforUmbilicalInstallationinDeepwaterWANGAi-jun，YANGHe-zhen(StateKeyLab。rat。ry。f

2、OceanEngineering，School。fNavalArchitecture，OceanandCiVilEngineering，ShanghaiJiaoTongUniversity，Shanghai200240，China)Abstract：Thedeepwaterinstallationbecomesacriticalissueforumbilical．Theeffectsofdifferentbuovancvmoduledeplovmerits(differentsizes，lengthanddeploymentpositiono

3、fbuoyancymodule)onumbilicalinstallationarediscussedindetail．Andtheeffectsofwaveandcurrentdirectionsarealsostudied．First，afreehangingcatenaryumbilicalmodelisconstructedOnthebasisofthecatenaryeauation．Thenthedynamicumbilicalinstallationmodelisbuiltupbyapplyingbuoyancyandother

4、loads．Accordingtothecomparisonandanalysis，itisfoundthatthebuoyancymoduledeploymentpro’cesshasgreatefkctonumbilicalandSOdothewaveandcurrentdirections．Giventhesafetyofstruc‘tures，aIItheseparametersshouldbepaidattentiontoduringumbilicalinstallationindeepwater·Keywords：umbilica

5、l；deepwaterinstallation；buoyancymodulesCI。Cnumber：P751Documentcode：A1IntroductionTheumbilicalisacriticalcomponentoffloatingproductionsystems．Itprovideschemicalinjection。electricalpower，hydraulicsupplyandsignalstothesubseacomponentsforthecon—trolofsubseaoperations．Dynamicumb

6、ilicalthatconnectingsubseawellstofloatingprocessia—cilitiesisacritiealiteminsubseaproductionsystems．Itwillbesubjecttohighexternalhydro—staticDressureandenvironmentalloadsduringtheinstallationprocess．Astheoffshoreexplo’rationandproductionisincreasinglymovingintodeeperwaterre

7、gion，withaccompanyingin-creaseininstallationloads，theumbilicalinstallationfacesmorechallenges．Increasedweightofumbilicalwouldcauseextremelyhightoptension．Waveandcurrentinducedmotionsareli—abletointroducehighstressintheumbilical，particularlyatthetouchdownzoneandhang—offposit

8、ion．Highstressinthetouch—downregioncanbereducedbyinstallingtheumbilicalwithbuovanc