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1、OffshoreConceptSummary2008-06-25ByBaominZhangTopsidesThetopsidescomponentcoversprocessingfacilitiesforoilorgas,includingwellheadmanifolding,separation,gastreatment,gascompression,condensatehandling,exportmetering,waterorgasinjection,utilities,powergeneration,communicationsandcontro
2、l,quarters,drillingfacilities,bulkmaterialsandstructuralsteel.TopsidesTopsides:canrangefromasmallwellprotectorplatformweighingafewhundredtonnes,toalargedrillingplatformincludingprocessing,compressionandquartersandweighingmorethan30,000tonnes. Themainprocesssystemscanbespecifiedtoge
3、therwiththeassociatedutilities,quartersanddrillingandestimatesequipmentandbulkweights,materialandfabricationcosts,installationdurations,design,managementandHUCman-hourstoproduceanoverallcostestimateJacketsTheJacketcomponentprovidescostsforjacketsteelworkandallappurtenancesincluding
4、piles,pileguides,anodes,conductorguides,riserguides,Jtubesandlifting/installingaids.JacketsJackets: traditionalsteel-piledjacketswiththree,four,sixoreightlegscanbeselectedbasedonthetopsidesweight,installationmethodandlocalenvironmentalconditions. Fortopsidesoperatingweightsupto1,60
5、0tonnesandwaterdepthsupto90mlightweightstructuresincludingguyedcaissons,bracedmonotowersandlightweightjacketscanbeselected.GravityBasedStructuresTheGravityBasedStructure(GBS)componentincludescostsfortheconcretegravitybasetogetherwithallreinforcement,thetransitionpiece,mechanicalout
6、fitting,groutingandballastingsystemsandoilstoragefacilities.GravitybasedstructuresGBSGravitybasedstructuresGBS: concreteGBSeitherconventionalormonotowercanbeselectedwithorwithoutstorage. TypicallyusedintheNorwegiansectoroftheNorthSea.OffshorePipelinesTheoffshorepipelinescomponental
7、lowscalculationofpipelinesizes,wallthicknesses,materials,fittings,installation,designandprojectmanagementcostsforpipelinesandrisersystems. Thepipelinescanincludesinglephaseormultiphaseproductexport,waterinjection,gasinjectionandgasliftlinestoshore,toneworexistingplatforms(fixedorfl
8、oating)andtoexistingpipeli
