简介:Globalstrengthisasignificantitemforfloatingproductionstorageandoffloading(FPSO)design,andsteelweightplaysanimportantroleinthebuildingcostsofFPSO.Itisthemaintasktoconsiderandcombinethesetwoaspectsbyoptimizinghulldimensions.Therearemanyoptionalmethodsfortheglobalstrengthanalysis.AcommonmethodistousetheABSFPSOEaglesoftwaretoanalyzetheglobalstrengthincludingtherulecheckanddirectstrengthanalysis.AndthesamemethodcanbeadoptedfortheFPSOhulloptimizationbychangingthedepth.Aftercalculationandoptimization,theresultsarecomparedandanalyzed.Theresultscanbeusedasareferenceforthefuturedesignorquotationpurpose.
简介:浮式生产储卸油系统(FPSO)是一种经济有效的浮式平台方案,特别是在缺乏足够的输油管道系统的深海领域.大多数FPSO是永久系泊的,即整个系统能够抵抗工作海域内的各种极值环境条件.目前,能够将FPSO与其系泊及立管系统快速解脱的装置已经设计并发展了.可解脱式FPSO的主要特点是可解脱性,并能避免一定的环境条件,如冰山,美国摩西哥湾的飓风,中国南海的台风.本文将针对深水海域可解脱式FPSO,提出其主要技术和工程分析与设计思路,评估可解脱式FPSO与永久式FPSO的优缺点,等等.可见可解脱式FPSO与永久式FPSO都是十分有效的浮式系统,并根据平台设计的安全性、技术、成本和运行要求,来决定选择何种系泊方式.
简介:在浮式生产储油卸油装置(FloatingProductionStorageandOffloading,FPSO)不停产且3条拖船限位的状态下,简要分析FPSO受到的水流力作用,选择合适的限位方案进行旧上锚缆的拆除弃置和新上锚缆的安装,完成单点系泊上锚缆的整体更换,详述该方案在项目施工中的应用。该技术可实现FPSO不停产整体更换单点系泊上锚缆,避免FPSO单点系泊更换上锚缆造成油田停产。
简介:Asoneofthekeysafetyproblems,themotionperformanceandtouchingseabottomofaFPSOarepaidmuchattentionbytheoceanoilcompanieswhentheFPSOisexposedtosurvivalstormsintheshallow-waterworkingareas.Inthispaper,timedomainnumericalsimulationsarecarriedoutona160kDWTFPSOwithaYokemootingsystemmooredintheBZ25-1oilfieldwithawaterdepthof16.7m.Theresultsarecomparedwiththoseofthecorrespondingmodeltests.Goodagreementshowsthatthetime-domainsimulationscanbeusedtopredicttheperformanceoftheFPSOinshallow-waterreasonably.ItisfoundthatthetouchofseabedbyafullyloadedFPSOoccurredfewtimesundersurvivalstormconditions.Therefore,theFPSOshouldbelessloadedthanthatinthefullyloadedconditionunderthesurvivalstorms.
简介:Freakwaveisthecommonwavewhichhassignificantwaveheightandirregularwaveshape,anditiseasytodamageoffshorestructureextremely.TheFPSOs(FloatingProductionStorageandOffloading)sufferfromtheenvironmentloads,includingthefreakwave.Thefreakwavesweregeneratedbasedontheimprovedphasemodulationmodel,andthecouplingmodelofFPSO-SPM(SinglePointMooring)wasestablishedbyconsideringinternal-turretFPSOanditsmooringsystem.ThedynamicresponsecharacteristicsofbothFPSOandSPMaffectedbythefreakwavewereanalyzedinthetimedomain.Accordingtotheresults,thefreakwavesgeneratedbyoriginalphasemodulationmodelmainlyaffectthe2nd-orderwaveloads.However,thefreakwaveswhicharegeneratedbyrandomfrequenciesphasemodulationmodelaffectboth1st-orderand2nd-orderwaveloadsonFPSO.Whatismore,comparedwiththeirregularwaves,thedynamicresponsesofmooringsystemarelargerinthefreakwaves,butitsamplitudelagsbehindthepeakofthefreakwave.
简介:二十一世纪是海洋世纪。开发海洋已成为全球产业进步的重要标志。海洋经济也成为国民经济的新增长点。世界海上油气开发支出分析表明。全球在深水(深度超过500m)方面的资本支出将由2001年的56亿美元。增至2005年的106亿美元。主要用于深水平台、浮式生产设施、水下生产系统及海底管道。预计未来5年。油气田开发将采用123个浮式生产系统。总计达420亿美元,主要分布在西非、拉美及亚洲。随着海洋产业的高速兴起,海洋工程装备成为世界主要造船企业新的利润增长点。