中海洋smsp003.docx
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中海洋smsp003.docx
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中海洋smsp003
DETAILDESIGNFOR
QHD32-6OILFIELDSURFACEFACILITIES
JOBNO.99DD05
COSIGN
DISCIPLINE
SIGNATURE
DATE
SUBSEAPIPELINE
STRUCTURE
PAGE1OF16
1
00.5
FORAPPROVAL
0
00.3
FORAPPROVAL
REV.
DATE
DESCRIPTION
BY
CH‘K.
REV’W.
EXAM.
APPRO.
CLIENT
SPECIFICATIONFOR
LINEPIPEMATERIALOF
MULTIPHASEPIPELINES
(ERW)
CHINAOFFSHOREOILDEVELOPMENT
ANDENGINEERINGCORPORATION
DOCUMENTNO.
REV.
CERTIFI.NO.
SPC-S/M-SP-003
1
0100481
CONTENTS
1SCOPE3
2GENERAL3
3MANUFACTURINGPROCESSANDMANUFACTURINGPROCEDUREQUALIFICATIONS4
4CHEMICALPROPERTIES7
5MECHANICALPROPERTIES8
6DIMENSIONS,WEIGHTS,LENGTHSANDTOLERANCES11
7PIPEENDBEVELS13
8HYDROSTATICTESTS13
9NON-DESTRUCTIVETESTING13
10WORKMANSHIP,VISUALINSPECTIONANDREPAIROFDEFECTS14
11MARKING14
12COMPANY'SINSPECTION15
13DOCUMENTATION15
14HANDLING,TRANSPORTATIONANDSTORAGE16
1SCOPE
ThisspecificationdefinestheminimumtechnicalrequirementsofQHD32-6multiphasepipelinesjacketpipe(includingriser/bends)forthematerial,manufacture,inspection,testing,storage,transportationanddocumentationofhighfrequencyelectricresistancewelded(ERW)linepipe.
Thelinepipegradesanddimensionsarelistedasbelow:
PipelineandRiser
PipeO.D(mm)
PipeW.T(mm)
Grade
WHPB~WHPA
&WHPC~WHPD
&WHPE~WHPF
Jacketpipe
Pipeline
406.4
9.5
API5LX52
Riser
406.4
9.5
API5LX60
WHPD~SPM
&WHPA~SPM
&WHPF~SPM
Jacketpipe
Pipeline
508.0
12.7
API5LX52
Riser
508.0
12.7
API5LX60
Thepipejointlengthisall12.192m.
2GENERAL
2.1LinepipepurchasedtothisspecificationwillcomplywiththerequirementsofAPISpec.5L,SpecificationforLinePipe,exceptasmodifiedbytherequirementssetforthherein.
2.2Thisspecificationcontainsreferencetothefollowingspecificationandcodes:
SPC-S/M-SP-004"WeldingofMultiphasePipelines"
DnV1996"RulesforSubmarinePipelineSystems",1996
ASTMA370"TestingMethodsandDefinitionsforMechanicalTestingofSteelProducts",1995
APIStd1104"WeldingofpipelinesandRelatedFacilities",1994
API5L"SpecificationforlinePipe",1995
ANSI/ASNT-1505-95"StandardforQualificationandCertificationofNon-
DestructiveTestingpersonnel",1995
ASMEV"Boiler&PressureVesselCode",Article5,1995
3MANUFACTURINGPROCESSANDMANUFACTURINGPROCEDUREQUALIFICATIONS
3.1SlabandSlabTreatment
Allslabsshallbeproducedbythecontinuouscastingprocess.Thermalcuttingofcoldslabsshallnotbepermitted.Allsurfacesoftheslabshallbeinspectedfordefectsandtheendsoftheslabshallbecutasnecessarytoremoveinjuriousdefects.TheextentofslabscarfingshallbeagreedbetweenCOMPANYandCONTRACTOR.
3.2SkelpManufacture
CONTRACTORshallsubmitaspartoftheManufacturingProcedureSpecificationtoCOMPANYforreviewandapprovaladescriptionoftheproposedrollingpracticeinstrumentationtoensurepropercontrolofrollingtemperature,rollingreduction,postrollingcoolingrateandothermeasuresutilizedtoensureconsistencyofmechanicalpropertiesoftheproduct.SkelpthicknessshallbecontrolledbycontinuousgammaorX-raydevices.MethodsusedtoassureuniformityofskelphardnessshallbeincludedintheManufacturingProcedureSpecificationapprovedbyCOMPANY.
3.3LinePipeManufacturing
Thelinepipeshallcontainonestraightseamweldedutilizinghighfrequencyelectricresistanceorinductionmethods.TheweldingprocedureshallbesubmittedforapprovalbyCOMPANYaspartoftheManufacturingProcedureSpecification.
Theareaofpipelengthwhichincludedthefullthicknessoftheweldseamandtheheataffectedzoneshallbegivenheattreatment(s)afterwelding.Fulldetailsofheattreatmenttemperaturesandtimes,heatedbandwidths(internalandexternal),coolingrateandtrackingshallbesubmittedtoCOMPANYforapprovalaspartoftheManufacturingProcedureSpecification.
CONTRACTORshalldemonstratethattheheattreatmentwillensureconsistentproductionofafullyrefinedmicrostructureintheweldarea.CONTRACTORshallsubmitdetailsofanyotherheattreatmentofthelinepipeforapprovalaspartoftheManufacturingProcedureSpecification.
CONTRACTORshalldemonstratethatlinepipeoftheproposedgrade,composition,heattreatmentconditionandmanufacturingrouteisnotsusceptibletoweldgroovingcorrosion.
CONTRACTORshallinstallapaintmarkingsystemlocatedatandtiedbacktoapyrometerwhichshallmeasuredtheERWweldtemperatureasthepipeleavestheheattreatmentcoils.Pipewhichisheat-treatedoutsideaimtemperaturerangesspecifiedintheManufacturingProcedureSpecification,shallbepaintsprayedalongitslengthuntilthecorrecttemperatureisrestored.Pipethathasbeenincorrectlyheat-treatedshallbescrapped.
3.4ManufacturingProcedureSpecification
CONTRACTORshallsubmitadetailManufacturingProcedureSpecificationtoCOMPANYforapprovalpriortomanufacturethatshallincludeadetailedprocedureformanufactureoflinepipe.
TheManufacturingProcedureSpecificationshallincludethefollowingitems:
•Nameofsteelmill•Steelmakingmethod•Deoxidizationpractice•Chemicalcompositionrange•Specialadditions•Ladletreatments•Vacuumde-gassing•Slabtreatments•Frequencyofcenterlinesegregationmonitoring•HardnessSurveyProcedures•Nameofskelprollingmill•Rollingdetails(includingfinishrolling)•Rollingequipmentused•Rollingdirectionandcrossrollingratio•HeatTreatment(includingtemperature,holdtimes,heatingandcoolingrate,coolingmediumandfurnacedetails)•Rollingtemperature(forallstageofrolling),coolingratesandpercentagereductionbelow950C•SkelpInspection/Tests•Skelpcoiling,geometrycontrolandfeedspeeddetails•DetailedWeldingProcedures/Parameters•Shroud/shieldinggasdetails•Arrangementforremovingweldflash
•HydrostaticTestingProcedure•PipeTrackingSystem•Non-destructiveTestingProcedures(includingvisualinspection)•Dimensionalcheckmethods
3.5ManufacturingProcedureQualifications
Onepipefromthefirstdaysproductionshallbesubjectedtoalltestingrequiredthisspecification.FailureofanyoftheManufacturingProcedureQualificationTestingshallbecauseforrejectionofthemanufacturingprocedurespecification.COMPANYreservestherighttorequirerequalificationoftheManufacturingProcedureQualificationifthereareanychangestotheessentialvariablesofmanufacturing.CONTRACTORshallsubmitalistofessentialvariablestoCOMPANYforapproval.COMPANYreservestherighttorequireadditionalManufacturingProcedureQualificationTesting.
3.6FieldWeldability
ThepipematerialshallbesuitableforfieldweldingusingtheSMAW,GTAWandSAWprocesses.TheCONTRACTORshallsubmitdatafrompreviousprojectswhichdemonstratethatpipeofsimilarcompositionandmanufacturingmethodmaybeweldedbycommonsiteandlaybargetechniques.Intheabsenceofrelevanttestdata,COMPANYwillrequireweldabilitytestinginaccordancewithspecificationSPC-S/M-SP-004“WeldingofMultiphasePipelines”.
4
CHEMICALPROPERTIES
4.1Composition
ThechemicalcompositionofthesteelaspresentedintheManufacturingProcedureSpecificationshallconformtothefollowinglimits:
Element
ProductAnalysisMax.Weight%
Carbon(C)
0.16
Manganese(Mn)
1.60
Phosphorus(P)
0.020
Sulfur(S)
0.015
Silicon(Si)
0.50
Aluminum(Al)
0.06
Copper(Cu)
0.35
Chronium(Cr)
0.30
Molybdenum(Mo)
0.25
Nickel(Ni)
0.40
Vanadium(V)
0.10
Titanium(Ti)
0.05
Niobium(Nb)
0.05
Nitrogen(N)
0.01
B
0.005
CarbonEquivalent(CE)
0.38
Pcm
0.22
Notes:
1.V+Nb0.12
2.Al:
N≥2:
1(notapplicabletoTikilledsteels).
3.CEshallbecalculatedusingthefollowingformula:
CE=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15
4.RareearthelementsshallnotbeaddedwithoutspecificwrittenapprovalofCOMPANY.
5.Pcmshallbecalculatedusingthefollowingformula:
Pcm=C+Si/30+(Mn+Cr+Cu)/20+Ni/60+Mo/15+V/10+5B
4.2HeatAnalysis
CONTRACTORshallfurnishtheladleanalysisforeachheatofsteel.TheheatanalysisshallmeetthelimitsforchemistryagreedintheManufacturingProcedureSpecification.
4.3ProductAnalysis
CONTRACTORshallconductaproductanalysisonthefirstpipelengthfromeachheat,orfromeachbatchof100pipelengthsiftheremorethan100bereportedbyCONTRACTOR,fromacrosssectionratherthanfromasurfaceanalysisofthelinepipe.Ifthevalueofanyelementfallsoutsidethelimitslisted,thepipelengthsmadefromthatheatshallberejected.AtthediscretionofCOMPANY,CONTRACTORmaybepermittedtocheckeachpipelengthfromtherejectedheatforcompliancewiththisSpecification.CONTRACTORshallincludetheproductanalysismethodintheManufacturingProcedureSpecificationsubmittedtoCOMPANYforreviewand/orapproval.
5MECHANICALPROPERTIES
5.1General
CONTRACTORshallperformthemechanicaltestatafrequencyofonesampleper100pipelengthoronesampleperheatofaheatcontainslessthan100pipelength.
TestspecimenswillbetakenbyCONTRACTOR,frompipelengthsthathavebeensuccessfullyhydrostaticallytested.COMPANYwillhavetherighttoselectpipelengthsformechanicaltests.
Thefollowingtablegivesthenumberandtypeofmechanicaltestspecimensrequired.
PipeMaterialTests
TensileTest(SeeNotea)
CharpyV-Notch(Transverse)
Longitudinal
Transverse
(SeeNoteb)
1
1
1Set
SeamWeldTests
TensileTest
(SeeNotea)
Ch
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