63080137 method statement for carbon steel u g piping fabrication erection

8/17/2019 63080137 Method Statement for Carbon Steel U G Piping Fabrication Erection

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TotalSheet

Nos:

28

Subcontractor's

ame

DO,DSAL

TE

LTD

Company's

ame

DolphinEnerqv

imited

Contractor'same JGCMiddleEastFZE

Project ame

DOLPHIN

roiect

Plant ocation

RASLAFFAN

NDUSTRIAL ITY.QATAR

Subcontract

o.

Z

-1430 60'l

2

SubcontractWorkPackage

ECHANICAL&

AINTINGWORKS(MC'2)

METHOD TATEMENT

ORSTEEL /G

PIPING ABRIGATION

ERECTIOIN

Subcontractor's

ocument

o.with evision o.

DOD-MST-Pl-020.ev.02

DOLPHINProject

SUBCON. o z- 1430 601

2

IWORKPACKAGE:

MECHANICAL

ND PAINTING

woRKs(MG-2)

CLASS :

1 I ISSUE

URPOSE:

RESULTODE:

A,B.R.N.F

I

I

)

NEXTSTATUS:A,Fl,FR,FC,AB

F

C

)

RESUBI\ ' ISSIONATE:

(

.''.

\

RESPoNSIBLEEPr./PERSoN

,

e ,p, J4 ,Eil ,f ,("2; )

REVTEWDATE

t

gd g,t'/t

)

Ar Apprcvedwithout

Comment;

B: Approvedwith MinorComment R: Approvedwith CommenlN: Not Approved

F: Not

Subiect o Review

Appro\€l

or

review

here

nder

shall

not

be

construed o relieveVendor Subcontraclor f his responsibilitie snd iability

underlhe Cont€ct.

JOBNO .

0-3356-20

ContractorDOC.

NO .

ORIG. I SUBCONTRACT

O.

Seria l RFV.

v - |

1430 -601 -2 402 03

CompanyDOC.

NO

RL0-306012M32 402 03

Rev. lssue

Date

Puroose/Descriotionf Revision Prepared Reviewed

Approved

01

14.02.05

First ssue or Review comments

Y.S.Rao R .K .S ha rm a

Alan

Shreeve

02 07.05.05

Incorporated

ELcomments nd

resubmitor construction

S.S.Rao

S.Vijaya

Kumar

Alan

Shreeve

03 28.06.05

Incorporated

GC/DELcomments

nd

resubmit

or

construction

S.S.Rao

S.Vijaya

Ku


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3/28

i * i lDodsal

irrrdl fH5-

PROJECT

: DOLPHIN ROJECT PSTREAM

NDCOMPRESSION

ACILITIES

COMPANY

: DOLPHIN

NERGY TD.

CONTRACTOR : JGCMIDDLE AST ZE

SUBCONTRACTOR

DODSAL TE

LTD.

JOBNUMBER

: 0-3356-20

METHOD TATEMENT

FOR

U/G STEEL

PIPING ABRICATION

EREGTION

DOCUMENTUMBER

DOD-MST-PI-O2O

REVISIONUMBER 2

ISSUE UMBER

I

ISSUE ATE 28.06.05

Rev.

No

lssue

Date

Reason

or lssue

Prepared

Dodsal

Reviewed

Dodsal

Approved

Dodsal

Approved

JGC

0

06.02.05

ForApproval, fter ncorporatingGC

Comments

Y.S.Rao

R K

Sharma

Alan

Shreeve

1

07.0 .0

Incorporated ELcomments

nd

resubmit or construction

S . S . R a o

S.Vilaya

KUmar

Alan

Shreeve

2 28.06.05

IncorporatedGC/DEL omme4ts

and resubmit or construction

S.S.Rao

S.Vijaya

AUMAT

Alan

9ll

rehve

LW'

..-\y

0[]d\,no

CompanyDoc.Nor L0-306012-l\,132-402ev.03

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1 . 0

2,O

3.0

4.0

5.0

6.0

7.0

8.0

9.0

PURPOSE

SCOPE

REFERENCE

DEFINITIONS

RESPONSIBILITIES

TOOLSANDEQUIPMENT

PROCEDURE

HEALTH AFEWANDENVIRONMENT

ATTACHMENTS

Company

Doc.No:RL0-30601-i\.432-402ev.03 Page4 o f 28

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1 . 0

2.O

PURPOSE

The

purpose

f

this method tatement

s to

provide

uidelines

o monitor

nd control

ll

activities

elated o the installation

f underground

iping

o ensure

he compliance

ith

project pecifcaiions nd requirements.

SCOPE

This

method tatementovers

llactivitiesssociated

ith

prefabrication

nderection

f CS,

LTCSand SS

materialsncludingour

wet services

pplicationsf under

ground iping

t

Dolphin roject pstream

ndCompression

acilities.

REFERENCE

COMPANY/CONTRACTOR

ocuments

3.0

3.1

:Pipingmaterial lasses

:

Steel

Piping Fabrication

:Welding f

pressure

ontaining

iping

and equipment

:Metallurgical

equirementsor carbon fee/s

n

sour

wet

service(pipingnd equipment

ubject o SSCCand

HIC)

:Metallurgical

equirementsor carbon

steelsn sourwet

service(piping

nd equipment ubject

o SSCConly)

o

RL0-0000-GPG-00201/S-000-1139-001

ProjectQualityPlan.

.

RL0-0000-FPG-50001/5-000-1654-001

ConstructionHSEplan.

.

DOL-0000-CSP-00003/S-000-3116-001

UnderGroundlnstal lat ionNetworks

o

RL0-0000-LSP-000035-000-1360-006

:Specification

or identificationf Piping

matenal

o

RL0-0000-GPR-'100055-000-1630-201

:Material control

procedure

at site

'

(construction

hase)

.

RL0-0000-GPR-10101

3-000-1670-101

:Quality

control

procedure

or welding

consumableontrol.

o

RL0-0000-GMA-001015-000-1676-001

Sitewelding nd

NDEmanual.

.

RL0-0000-LPR-100025-000-1676-002

:WPS or Field

iping

work.

o

RL0-0000-LPR-100035-000-1676-003

:Weldino rocedure

ualification

est or

field

piping

won


6/28

.

RL0-30601

-M33-549N-1430-601-2-549

QCP or

Preservationf equipment

and

malenals

o

RL0-30601-Q56-521N

1430-601-2-521

QCP or Control f

Welding onsumables

.

RL0-30601-M32-4O3N-1430-601-2-403

MST or

PostWeldHeat reatment

o RL0-306012-M33-5504/-1430-601-2-550QCP or Wrapping nd coatingof U/G

Piping

.

RL0-306012-M33-525N-1430-601-2-525

QCP or Material

eceivingnspection.

4.O DEFINITIONS

COMPANY

CONTRACTOR

SUBCONTRACTOR

SUPPLIER

t-J

SS

LTCS

RESPONSIBILITIES

ConstructionManager

Construction

Manager

activities t site.

PLANNING ngineer

5.'l

: Dolphin nergy

imited

:

JGC

Middle astFZE

: Dodsal teLimited

:

Supplier f

products

ndservices

o

SUBCONTRACTOR

:Carbon

teel

:Stainlessteel

:Low emperaturearbon teel

shall be responsibleor overall management

f all

construction

5.2

5.3

He shall be responsible o prepare monthly and weekly schedu/esbased on over all project

plan

and

monitor

progress

on daily,

weekly and monthly basis.

PIPING ngineer

He shall be responsibleor carryingout

the

all activities ssociated

with U/G

piping

works

includes

prefabrication

nd erection

in line with ihe

schedule

targets

given

by the

Subcontractor's rojectControls epartment . lso

responsibleor

planning

nd execution f

all U/G

piping

activities,ncluding ut not imited, o the Materials,

Machinery,Manpower.

He will

provide

a list of materialsagainst each lsometricno, to the MaterialController

minimum wo weeks n

advance

of the

planned

chedule. PipingEngineer s responsibleor

expediting he missing materials,monitoring he drawing revisionsand modificationsor

meeting he

production

argets set by the

project

controls. They shall co-ordinateand

interface ith CONTRACTOR

iping

Supervisors.

PipingForeman

He shall be responsible or fabricating fhe spoo/s as

per

the latest approved drawing as

identifiedby the

piping

engineer and also

responsib/e

o coordinate

with igging foreman for

erection of fabricated

prpe

spoo/s.

Ensure

all

personnel's

working with him shall worn

necessary PE as

per

construction SE

plan.

5.4

ComDanv oc.No:RL0-306012,432 02 Rev.03

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i - 1 ' i _ -_ - ' _ ' ' ____- i

i - \ i - - . l

I

=-r

iOOdsal

-1

g*r#{

5.5

Rigging oreman

He shallbe responsible

or supervise

ll rigging

activitiesnvolved

n fabrication

nd erection

of

piping

spools

and ensureall

personnel's

hall

worn necessary

PPE as

per

construction

HSEplan.

5.6 Material Controller

MaterialController

hall be responsible

or collecting

materials rom

the JGC ware

house/JGCesignateday downarea

and shifting

he materials

o the abricationreaand

shifting

he fabricated spools

rom the subcontractor's

abricationarea to the

erection site.

5.7

5.8

5.9

WeldingEngineer

He shallbe

responsibleor the selection

f consumables inventory

ontrol, reparation

Qualification

f

WPS & PQR,

Qualification

f Welders&

Monitoring elderPerformance,

Marking

he WPS

and

NDE requiremenisn lsometric rawings, roubleShooting f all

weldingelated

roblems,

onducting

raining ections

or hewelding

ersonal.

e

shall lso

coordinatend nterface

ith

Contractor's

elding

Engineer Sr. Welding nspector

n the

maters elatedo Welding selectionf

Jointsor NDT.

WeldingSuperintendent

WeldingForeman

He shall eport

o the WeldingEngineer nd shall

be responsibleor Job allocation nd

monitoringelders, ontrol ndmonitor

he ssue f WeldingConsumables,hecking

hatal l

welding

arameters

onfirms o heWPS,conducting

eldvisualnspectionnd

preparation

of DailyWelding rogress eport, ttending

epairs tc.,

Welding

QC

nspector

He

shallbe

responsibleor heverificationnddocumentationf all

he materialsonfirming

to the lsometric rawings Standard

rawings,ransferringeat

nos.

on

to the material

traceabilityecords, hecking f it-ups,

reheats,

nter

pass

emperatures

inal

weld

visuals,

witnessing F Pad eak esting,WeldVisual

nspectionnd

preparation

f DWR,

n

process

inspection surveillancef all

welding ctivitiesn

he

shop.

NDE&

PWHT

Goordinator

He shallbe responsibleor coordinating

ll the NDEand

PWHTactivities. e is the focal

point or requesting ll the NDE and PWHT, lagging nd identificationf joints.He will

update

heNDT esults n raceabilityecords, nd

make he istof spools leared

or NDE.

HSEOfficer

HSE officer hallbe responsible

or successfulmplementationf safety

ystems hrough

differentrainino nd nsoection.

5 .10

5 . 1 1

Company

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1 \ t t

I

F,

illodsal

h.-i.. l<

6,0 TOOLS

ANDEQUIPMENT

o

Cranesshall

be certified

y third

pafty

.

Fork ifts,Liftingbelts,Chain

blocks, irfors,Slings

and other

necessaryoolsand

tackles or rigging& material andling perationsCertified y thirdparTyf applicable)

and

quarterly

olor-coded s

per project

HSE

equirement.

.

Pipe tands,

ipe

lamps,

ixtures

.

Welding nd

grinding

machines

pencil rinders)

.

Electrodes

bakingand holdingovens

with valid calibrationceftificates.

.

Gascutting nd

Plasma uttingmachines

.

PipeFitting nd nspection

ools

o

Wind

orotection

uts

.

Hand ools uitableo the

materialo be abricated

.

Tools nd

ackles i th abricationenches nd

vices

7.O

PROCEDURE

SequenceOf Activities

7 1 Materialdentification

a. ldentify he materials

equired or fabrication f under

ground

piping

as

per

the

approvedonstruction

sometricrawings.

b. Collect nd shift

he materialsrom he JGGwarehouse/layownarea

o fabrication

arealstores. egregate he materials

tem wise

and

colour codes

for material

identificationhallbe appendix-1,pecificationor dentificationf pipingmaterialsefer

Doc.

o:RL0-0000-LSP-00003.

c. Millmarkings hallbe verified ith

materialestcertificateuring abricationf

piping,

beforecut the

pipes

o suit drawing imensions

eat or chargenumbers hall be

transferred y hard stamping/tag n cut

pieces

and duly

recorded nd

get

signed rom

the

coniracior

n he raceabilitvorm.

7 2 Material torage

a.

All

piping

Material ith heexceptionf bulk

tems,

.g.

bolts, utsandwashers tc,will

be stored ndcontrolledn accordance ithcontraclor's aterial ontrol roceduret

site eferCompany oc.

No:RL0-0000-GPR-10005.

b. Materialshallbe stored ccording

o the temclassification,

o

notstore

ogether ith

different

tem

classification.

or sfainlesssteelspools/pipes nd

fittingsshallbe kept

separatelvo avoidcontamination

ithothermaterials.

c. Pipe

spoo/s sha// be

stored area by area as

per

the

PCWBS for easy access and

identification

of spoo/s.

7.3 Verification

of

Trenching Excavation

a. Trenching Excavation ill be doneby others or all the U/Gpipingworks. After eceipt

of trench handover document

from Contractor, Subcontractor hould verify

the

Conpany

Doc.No:RL0-3060]2-l\,132-402

ev.03

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i-:\

l e n i

Ef

r_---_--------_--.]i

iDodsal

lsE-

7.4

suitabilityf

Trench/Excavation

or the Coordinates,

levation,

idthof trench,Slopes,

Bedding s

per

he

drawings

nd

rench onfiguration

or safe

working.Any concerns

willbe

notifiedo Contractor,

hrough

roper

hannel.

Prefabrication f

spools

a.

Prefabricationhall be carried

out as

per

the subcontractor's

pproved

method

statement

or

piping refabricaiion

oc.no:

L0-30601-M32-404N

1

430-601

2-404.

b. The spools equested

y the Area Piping

Engineer

ill

be

deliveredo the

location

advised

y he Piping ngineer

Piping oreman. nloading

ndstackinghall

bedone

in

such a

way that, the commonaccess

and roadsare

not blocked, ntil unless

informed nd

agreed y the CONTRACTOR.

he spools hall

be stackedo suit

he

erection equence nd segregated

aterial

wise, n

particular

voidcontact f SS

sooolso CS/LTCS.

Transportation nd

placing

of spools

a.

The spoolsdeliveredo site are

generally

wrapping nd coated ondition.

Hence, are

shallbe

exercisedo avoid/minimizeamages

o the coating uring

oading,

nloading

and

erection ctivities.

b. If any damages occurred duing transpoftation

and handling shall be

notified

to

contractor and damaged

pipe/fifting

shall be

replaced with new

pipe/fitting

and

welding

shallbe carried out according

o the approved

welding

procedure.

c. The

pipes

PipingSpoolsduly coated

Wrappedwill be

placed

nearby he excavation

within he range no closer han 1.5M.

The

crane

will be kept at a safe distanceof 1.5

time'sminimum epthof excavation ue to looseexcavated and/earth. he capacity f

the crane o be usedwill be identified epending

n Pipedrameter/weight.

d. When there

is no

excavation

s involved,

piping

can be

placed

directly on

the

coordinates f

iis

final ocation.

e. Liftingbelts shall be used

o

avoiddamage

o the Coatingof the

piping

components.

Steel opes Slingsare shall

not

be

used.

f. Pipingcomponents ill be

placed

above

ground,

using

woodenDunnage or sand bags

to facilitatewelding

and

it up

operations.

Gleaningand protection of spools

a. Before ield erection,Spools will be blown

with

compressed

air to remove dirt and

debris,

if

any.

lf the

spool

is not

going

to

get

erected immediatelyafter

the

cleaningi lowing,

he

ends

wili

be

protected

with the end caps or with a

polyethylene

sheet tightly ied with binding

wire to

avoid

ingress of dirt/water/moisturend any

foreign

ob1ects.

The open ends of the erectedspoolsshallbe covered

mmediatelyo

avoid

he moisture

ngress.

b. Extracare shall be takenwhile erectingCS/LTCSand

galvanized

poo/s

n the vicinity

of Stam/essSieel o avoid crosscontaminatlon.

Wire rooe

slinos

shall not be used or

handl ing,

ransportat ion

nderect ion

f SS spools.

7 .5

7.6

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7.7

c.

The flange aces shall

be sealed

with light

metal blinds

plywood

or

purpose

manufactured

lastic

aps.

Everycare shall

be taken

o avoiddamage

o flange

gasket-seating

acesduring

he course

f erection.

f any damage

o

the flange ace

shall

e notified

o theCONTRACTOR

y

FQR.

Field nstallation

Prior o any installation,

3D view

o be studied o check

and ensure

or any nterface

with adjacent

structures,

iping

or equipment.

ncase f any

such cases sha//

be

informed hrough

ield

query

o contractor/company

or remedialaction.

All

piping

materials

hall be field

run and fabrication,

raceabilityecords

hall be

maintaineds

per

heSUBCONTRACTOR

ethod tatement

or Piping refabrication.

Heat numbers shall be transferred

by means of

hard

punching

or carbon

steel

materials hickness bove

5 mm.

For

carbon

steel materials htckness

ess than or

eoual o 5

mm

and

all LTCS/SSmaterials hall

e etched

with

electric

encil.

Erection equence hall

be

planned

ccordingo

the spools vailability nd ensure

hat

there s no inbrterence

and difficultyof erecting

he remainingspoo/s n

later

stage.

e. While

oint

it up careshall

be exercisedor staggering

he Longseamsof

pipe

and

fittingsn sucha way hatat

the

circumferential

elds he ongitudinal

eldsareoffset

from

he

top

of

the vertical

ipe

centerline

referably

0"

left and 30' right or each

successive lement.

The minimum istance etween

he two longseamsshallbe

50mm

r

six imes he

pipe

wall

hickness hichevers

greater.

The distancebetween wo successlve

ircumferentialutt

ioints

shall

be minimumof

SAmm r one time diameterwhich ever s oreater.

g.

After

completion f

the

oint

it up,

pipe

itterwill makea box adjacento the

oint

markinghe

Joint

no.,

provision

or Fit up & Weld Visualsign off

from the welding

Inspectornd orwelderdentificationos.

Pipe Fitter Piping oremanwill check

he fit

up

and

advise

he areawelding

nspector

for

clearance.

Welding nspector hecks it up,

identification

f spool

nos. and upon his

satisfaction

lears

he

joint

fit up and notes down

the

applicable

WPS to be used or

welding

and

preheat

emperaiure,f required. There shall

no

be

no

stress

placed

onto

equipment

ozzles rom

piping.

No

pipe

springing llowed.

All valves, strainersand inline items shall be installed as per /atesf approved drawing

and ensure the actual

flow direction of the svstem and valves marked

flow direction

shallbe the same direction.

All bolts and nuts shall be

protected

with anti seize compound o

prevent

corrosion.

L

Al l

p ip ing

lange

bol tsare

o be t ightenedtorque s applicablend

orque alues

hall

be as

per

the

project

spec. Bolt ightening equenceshall

be followed, s

per

the boll

t ightening

rocedure

i l lbe submittedeparalely.

Dimensionalolerances

hal l e

ol lowed

s

per

attachment-1f company oc.no:

RLO-

0000-LPR-0009.411ngular imensions f bends

and branches hal lbe maintained

within 1 deoree.

a.

b .

n .

J .

k .

ComDanv oc.No:RL0-30601-l\,432-42 Rev.03

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11/28

l - l

'8

iDodsel

n.

All he emporary ttachments,

ugsandstrong

acks nd ack

welds sedduring

ifup

shallbe

made n accordance

ithapproved elding

rocedure

ndshall

be welded y

the

qualified

welder's. Upon/during ompletion

of welding,

all the temporary

attachmentshall be

removed y using

grinding

nd

ground

lush with the base

material,nd nspectedisuallyollowed y Magneticarticle/dyeenetrantest.

Pipe suppotis

nstallation nd weldingshall be done

as

per

the approved

sometric

drawings

and

painting

of the sameshall

be done according o

the

proiectpainting

soecification

eferDoc.No:RL0-0000-WSP-02005.

o.

After ine is mechanically ompleted nd

prior

to test

pack

submlsslon,

ine

shallbe

thoroughly heckedwith latestapproved

drawingand any changes

of dimensions,

rerouting& additional

weld

oints

shallbe markedon drawing

nd submit inal as built

draw

nq

o

the contractor/com

anv.

Welding onsumable ontrol

a.

Welding onsumableontrol hallbe followed s

per

he

approved CP

or control f

welding onsumableseferDoc.No: L0-306012-Q56-521.

b- All backingand holding ven shall be equippedwith

thermostat

nd

havingvalid

calibrationertificate.

owhydrogen lectrodeshallbe backed t a

temperature

00 '

C to 350'C or 2 hoursor as oer

he manufacturesecommendation.fter2 hoursof

backing,he sameshallbe shifted

o

holding venand

maintain temperaturel50"C

prior

o ssue.

c.

Welding

lectrodehall

be ssuedor

production

romholding vens nlyand carrying

theelectrodeso fieldby portable vens/quiversaintainedt a temperature0'C o

100'C.

Un usedelectrodes

hallbe return o storedby the end of shiftand shallbe

rebakedas

per

the manufacturer'secommendation.

aximum umberof times

electrodesanbe baked hallnotexceedhree

imes.

Welding

a. Allwelds ncluding eld epairs hallbe supported y he relevantWPS.All

heWPS's

shall be

supported by PQR's and shall be

qualified

n the

presence

of

COMPANY/CONTRACTORccording o the ASME Sec.lX and relevant

project

soecifications.

b. All the relevant nd latestapprovedWPS's copy will be availablewith welding

foremaniwelding

uperintendentnd

t will

be

displayed ear he weldarealwelding

consumableontrol tore ocated t site.

c. Daily oolboxalksshallbe conducted y

the

weldingoreman/weldinguperintendent

andexplain

o the welder'so follow he welding equirements.hewelder hall tr ictly

adhere o the WPS, and shall be moni tored y the Welding nspectorAlVelding

Superiniendent.

d.

Before

tartwelding,heck he

oint

or cleanlinesso ensurehat he

oint

and

oint

both ides f basematerialt least 5mm hall e clean nd ree rom

paint,

i l ,dirt,

scale,

xides ndother

materialsetrimentalowelding.

7.8

7.9

CompanyDoc.No:RL0-306012-[,,132-402ev.03

A a d a 1 1 ^ f ) 9 ,

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_ _ _ _ _ I N D RA

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2 0 0 5


12/28

f.

J

n .

t_

n .

o.

Before welding,

ensureearthing

s

properly

connected o

the

ob

to

prevent

oss of

amperage

nd arc strikes.

To avoiddamage

o the existing

Coating

Wrapping ue

o the welding nd

related

activities

uchas weldspatter,

rinding

tc.,

adjacent reas

t weld

oint

willbe mvered

with ireproof rotectiveovering fireblankets.

WeldingForemanwill allocate

a

qualified

welder

(approved

y

CONTRACTOR,

identified y

welder D card)

or

performing

he weldingand also

responsibleor

arranginghe

requiredillerwire & electrodes,

ind

shields,

amsand back

purging

whilewelding tainless teel,

preheating

f

ihe

oint

n accordance

iih he approved

WPS.

In case the

joint

requires

preheating,

fter

attaining he

preheating

emperature,

Welding oremanshall be checked

preheat

and

ensure

preheat

hall

be as

per

approvedWPS.EachWelder as been

provided

ith

a

set of Temperaturendicating

Crayon,and welder shall be

responsibleo check and

maintain he

inter

pass

temoeratures.

Weather

onditions

ecomeoo severe,

ike blowing indstrongly nd

rain s falling,

welding

hall

be

stopped

nless

rovided

dequate

hieldingrom he

wind

or

rain.No

welding hallbe carried ut on

wet basematerials.

ny moisture n surfaceso be

welded hallbe removed y

preheating

o 50oC

rior

o welding.

Welding f SS

oints

shallbe commenced

fter

purging

ithallowing ufficieniime o

displace

he

entrapped

ir and backing hallbe in accordance

ithapproved elding

oroceoure.

Aftercompletionf eachpassand before epositinghe nextpass he ointshallbe

cleaned f slag,

pores

or any r regularities.

he

purging

hallbe continued

ill he

end

of hot

pass

whilewelding tainless teel.

The electrode

uivers

hallbe always

lugged

nd he cover hall

be keptclosed. f

the welders aveany

problem

ith

he

oint

electrodeshallapproachhe

welding

Foremen r Weldingnspectoror

needed ction r clarificat ion.

After ompletinghe

oint

hewelderD Number hallbe entered

n thespace

rovided

adjacent

o the

oint.

Depends n the sizeof

the

oint

1 or morewelders anwelda

joint.

Thearea

performed

y each

welderwillbe clearlydentified ut,always areshall

be taken o engageminlmum

umber

f

welders n a single

oint.

lf more han

one

welder s used to complete .loint, all welders D's are to be confirmed n QC

documentation.

Ensure Joint shall

not

be

moved/lifted until welding at least 2

passes

or

1/3'"

of

wall

thickness is completed, some critical applications

lifting of

joint

with out complete

welding shallbe notified o contractor/company.

At the end of each shi f lwelding oreman hal l

prepare

l ist of a l l

the

oints

whose

welding as beencompleted ndsubmit o

theWelding

QC

Inspector

m.

Company

Doc.No:R 0-306012-N/32-402ev.03 Page12of

28

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13/28

7.10 Visual

nspection nd NDT

a. Welding

nspector ill nspect

ll weld

oints

visually othcapping

nd rootwherever

accessible

o meet

he

project

equirements.

e will verify ll

he details onf irming

o

themarkings djacento the oint.

b. After nspectionnd

con{irmation

f acceptance,he isi

will

be

given

0

he

Contractor's

Inspectoror inspection

review. Once

the

Contractor's

nspector

ompletes is

inspectionhe signed

DWR, copiesshall be distributed

o the

ProjectControls

department,

ieldNDE& PWHT oordinator

ndContractor's

elding ngineer.

c. NDEand

PWHT

oordinator

rganizes

he lagging nd dentificationf

weld

oints

with

NDESUPPLIER.

he NDE equestshallbe

ointly

igned

ffas acknowledgement

or

witnessinghe

oini

and

confirmationor availabilityf access

nd ightingor carrying

out he NDEactivities.

d.

NDE& PWHTCoordinator ill

receivehe NDE reports nd PWHTcharts

rom he

NDE

SUPPLIER

nd PWHT upervisorespectively.

e will reviewhe PWHTChart

andafter igning ubmit

o heCONfRACTOR

or review ndsignature.

e. The signed

PWHT

Chart

will be retained y the CONTMCTOR nd

a copyshallbe

issued o the

SUBCONTRAGTOR

or reference. he NDE &

PWHTchartswill be

issued o the site

QA"/QC

ngineeror updating

nto he field raceabilityecords n

daily asis nda

master opy hall e maintainedy

he NDE

PWHT

Coordinator.

f. After ompletionf PWHT ndNecessary

DT,NDTcoordinatorill eleasehe

oints

for est ing. estingwillbe carried utas

per

he approved

rocedure

illbe submitted

separately.

g.

Arc strikes outside weld bevels shall be avoided,

if

any occur,

the deposit shall be

carefully removed by

grinding

and the area shall be

100%

examined

by magnetic

particle

test

(on

magnetic

materials)

or dye

penetrant

test

(on

non magneticmaterials).

All repairs shallbe done according o the approved

welding

procedure.

7 11 RepairsManagement

a. Once a

repair s identified, or

joints

sizes below 2" NPS the full

oint

will be cut and

re-

welded. For

all

other sizesbased on the extent of repair, the Welding Superinlendent

shalldecide whether

oint

is to be repaired ocally or the

oint

is to be cut and

re-welded.

For localized ocations the repair shall be marked from lhe tracersgiven by the NDE

co-ordinator.

b. The

oint

will be excavated by

grinding

and

excavated

portion

shall be sufficient lydeep

and long to remove the defect.

The width

and

profile

of excavated

portion

shall have an

adequate access or rewelding.

c. After repair removal shall be followed by

MT/PT to

ensure

the defect is completely

removed and re-welded as

per

the approved

repair weldtng

procedure

and necessary

NDE & PWHT shall be

performed.

The information regarding the obseNation

on

the

repair

shall be recorded as

found

/

not found and

given

to the welding engineer or his

review

and

records.

Company

Doc.No:

Rt0-306012 \,432-402ev.03

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14/28

8.0

7.12

Reporting nd

DataManagement:

NDE SUPPLIER hall

maintaina database,

whichcan

provide

all necessary

uality

epofts

and nformation or maintaininghe Quality.

The nput or the

Date Base s:

.

Joints

markedup Isometrics

or creating he basic

data.

.

Daily WeldingRepofts

.

Lrsfof SpoolsReleased

or NDE

c

AIINDERequests

.

All NDE epofts

.

Lisf

of Spools

Releasedor Painting

TheOutput btainedrom he

Data Base

.

WeeklyWelderPerformance

Reports

.

Sfafusof TracersMarking

o

LineC/ass

wlse NDE

summary

ndcoverage

.

WelderWiseNDEcoverageor Random adiography

oints

.

No.

of Joints

welded

and

No.

of

Jointsbalance or weldinq

.

No-

of Joints alance

or Radiography

.

No. of Jointsbalance or PWHT

.

No-

of Jointsbalance

or RT repair

.

Sfafus f Spoo/s nder abrication, nderNDEclearance r

underPainting.

Statusor he same shallbe submittedo contractor

QC

department n weeklvbasis.

HEALTHSAFETYAND ENVIRONMENT

1- Tool Box Talks

shall be conducted

before the commencement f new activityand

everydaymorningdetailing

he risks nvolved n the activities

oing

o be carriedout.

2. Before

commencement

of work SafeActivity Pre-Check

(SAP)

sheefs

sha//

be

filled

as

attached.

3.

All

personnel's

hall

worn necessaryPPE all times during the work.

4. Ensure all lifting equipment and accessories shallbe cerlified or their capacity, validity

and

quafterly

color coded as

per

constructionHSE

plan-

5.

All

electrical equipment shall be

inspected

and

properly

earthed by a

qualified

electricianand

quarterly

color-codedas

per

constructionHSE

plan.

6.

The

excavated

rench

area

will

be barricaded t

least2M back,with safety ibbonwith a

bi l lboard ispaying

Deep

Excavation".t n ight, l inking ghts& safety

r ipodwi l l

a lso

be displayed round he excavationrea,

whenever

equired. ardbarr icadinghal lbe

provided

or excavation eyond2-meterdepth.

7. Proper rigging studies shall be done on case-lo-casebasis for exact crane

positioning

and safe iftind oDeration.

CompanyDoc.No:RL0-306012-M32-402ev.03 Page 14

of 28

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15/28

9.0

8.

ln case of any emergency

during

nstallationof

piping

in trench,

piping

foreman

will ead

the team

for emergencyevacuation.

ATTAGHMENTS

1 Attachment-1

Dimensionalolerances

2. SWMS or UnderGround

Piping nstallation nd

Testing

3. SafeActivity

Pre

check

SAP)

sheet

CompanyDoc.No:RL0-30601-[,432-402

ev.03

Page15of 28

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16/28

f:\

"4

DI

\4EI'I

OI']AL OLERANCES

{ 1 )

Nlaxlntir:,r.." r:.,Y3ble

ocational

olefan:':

.

max.

: l

i r r : ;

i ILq

n . )

For"lake-oul

posll ic'1"

l oriilce

low

meier

connecllon

.max.

11.5 mni

(1/6

n- )

Allowarii

i

l r i : in. ie

il Length

.. as

pe r

above

1 in

pi:i-.cipi4,

i'r,'iYer' may

be

'Opiional'where

ttreii,

is ar

aliowence

for

adiustment.

Ma:: i i

r;

, ' i l ',, zontal

Oif-sei

of

trranehes',

e tc . , " ra : .

: ' : r r ; l

i1 /3

n. )

[4aximum

ali 'wable

rolaii'trn

i ]'i.r, :: -qrii

Hcie .max.

1.5mm('1116

n

)

lnciinalit ir , i

-iairil€,

. l3ximum

-..11 4

degree

1:2i.'0)

, ' lr

r 'rnilr '8 tt.),

rhichever

s

smaller

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Tolerance

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r

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e

{

as

pef

pafa.7.3 of GSPW

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(2)

(3 )

{5)

(6)

CompanyDoc.No:

RL0-306012 32-402Rev.03

Page16of 28

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SAFE

ACTIVITY

RE-CHECK

SAP)

SHEET

I

@,1C0

limre asrll

Company;

Date:

Foreman

(print

nameli

Location:

Task Descriotion:

MUSTERASSEMBLY

OINT OCATION:

tS YOURDESIGNATED

LACE

OF

WORKTIDY? YESor NO

(lf

"NO"

housekeeping

ust

be

performed

rior

oworkcommenclng).

KeyTask RelaFdHazards

NO

r4l

Excavalions

Access Only

Plant & Equip ment

Electrical

Confined Soaces

::r:=--=j-::- (ey:EGnenf

ative

Contro ,ltrleasures.:-

.. .

lsolations

Lock

Out,/

Taq

Out

Hotwork

Instrumentation

Pre /

Commissioning

/

START-UP

SHOREDSLOPEDBENCHED

FIREEXTINGUISHER

LADDERS ROVIDED

FIRE BLANKET

BURIEDSERVICESDENTIFIED CYL]NDERS PRIGHT SECURED

VEHICLE

TOPBARRIERSBOARDS

COIi,4BUSTIBLESEIT,4OVED

EXCAVATIONNSPECTED FIREWATCH

Safety

Passpodcheck)

NO

SPECIAL

PPE

(VISORS,

GLOVFS,elc)

STANDBY I\,,IAN EMERGENCYCOMMUNICATIONS

VENTILATION

WORK BELOWRESTRICTED

PERMITo WORK BARRIERSSIGNS OSTED

GAS TEST COI\TIPLETED FLAMEARRESTORSF]TTED

TALLY OARD r similar WELDING ABLES N GOODCONDITON

E[,4ERGENCY CCESS

CHEMTALS

I

YE s

.

N/A:

coi\,4t\,4uNtcATtoNs

MSDS

REVIEWED AVAILABLE

SAFETY

HARNESSES

SKIN

EYE THROAT RRITANT

SU TABLE

Ex.)

IGHTING SHOWERoI EYEWASHAVAILABLE

N/A

SPECIAL

PPE AVAILABLEAS PER NTISDS

SCAFFOLD NSPECTED CONTAINERS ABELLEDPROPERLY

lNSPECTIONSCAFTAGPOSITIONED IN DATE SIGNSPOSTED

SAFE

ACCESS EGRESS

ROV]DED R SK ASSESSMENTCONDUCTED

TOEBOARDS.KICKPLATES N ORDER HMARDS CONl[IUNiCATED

HANDRA S

SECURED GROUNDING

HARNESS& LANYARDS NSPECTED CONTANI\,4ENT EQUIRED P ROV DED

STATIC INES TIE OFF POiNTS ABSORBENTAVA LABLE N S/7U.

PLANT

&

EQUIPMENT

YES NO

N/A

' o l

PLANT& EQUIPI\4ENTSPECTED TOOLS. PPLLANCES SPECTED

LIFTING EAR.R GG NG NSPECTED CERTS DEFECTSREPORTED

BANKS[']AN

COI\4PETENT

ERSON DENTIFIED PORTABLE

PPLIANCESNSPECTED

LIFTING LAN CALCS& MIS

CNECKED

EXTENSiON ABLECHECKED

TAGGED

OPERATOR ERTIFIED

OPERATORS ERTIF

D

CABLES, OSES NSPECTED PPEREQUIRE[']ENTSDENTIF

D

FLAGMEN RAINED POSIT]ONED

GUARDS OSITIONED

Comoanv oc.No:RL0-30601-M32-402 ev03

D ) ^ ^ ) 7 ^ f ) A

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_

63080137 method statement for carbon steel u g piping fabrication erection

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