中海洋smsp003.docx

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