资源描述:
《一种深海复合采油立管的设计与性能研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AbstractAbstractTheriserisoneoftheimportantequipmentofdevelopmentoftheoffshoreoilandgas.Morethanshallowsea,marineenvironmentofdeepseariserismorebad.So,therequirementofdeepseaoildrillingriseraboutthematerialselection,structureandmanufacturinginstallationprocessisveryhigh,generallysingleriseris
2、verydifficulttoachievethisstandard.Atpresent,thecompositeriseriswidelyappliedindeepseaoilfieldbecauseofitsrichstructure,goodmechanicalproperties.Becausetheforceoftheriserundertheseaiscomplexwhenworking,theresponseoftheriserundervariousloadingconditionsneedstobeconsidered.Inthispaper,theresear
3、chcontentisasfollows:(1)Akindofdeepseaoildrillingriserwithahightensileperformancewasdesigned.Theriseruseshightensilestrengthofsteelstripastheouterlayermaterialwrappedinstrengthlevelwasrelativelylowcanbeweldedpipeouterwall,includingtherisertube,axialsteelbeltlayerandlayer2differentAngleofspira
4、lsteelband.Thedesignadoptedthemechanicalconnectionoftwokindsofweldingofhighstrengthsteel,thestructuresoftheriserwereabundant.Notonlyhighstrength,lightweightandnoweld,greatlyimprovingtheriserinthestrengthofthejoint.(2)Structuralresponseanalysismodeloftheproposedcompositeriserunderbendingloadwa
5、sproposedandtherelationshipbetweenthestriplayerstrainandlaidofspiralanglewasdeducedinpolarcoordinates,throughtheprincipleofequalstrainenergywiththemomenttodoworkoutside,itwasconcludedthatthecompositepipespiralsteelbeltlayerandcalculationformulaofbendingstiffnessofcompositebendingofthestandpip
6、eatthemechanismofresponsecharacteristics.(3)Theresponseoftheriserunderaxisymmetricloadwasanalyzed.Firstofall,unknownvariablesofresponseofeachlayerundertheaxisymmetricloadwasgiven;Then,equationscorrespondingtounknownvariableswasdeduceaccordingtothebalanceequation,constitutiveequationandthedefo
7、rmationcoordinationequation;Finally,theresponseofthepipeundertheactionofaxisymmetricloadequationisobtained,andrelationshipbetweenthespiralsteelstriplayerlayingangleandcomplexoftheoverallresponsewasdiscussed.(4)Numericalsimulationofthecompound