offshore qc welding inspection versi 1
TRANSCRIPT
Quality/Welding inspection during Offshore Pipeline and Platform Installation
By Rahman Suwandhi
Personal Data
Name: Rahman SuwandhiGraduated: Technical of Metallurgy 1997Residence: BatamOffice: EMAS AMC Pte Ltd – SingaporePosition: Quality/Welding EngineerMain Business: offshore EPCI oil & gas companyContact No: +62 8127041931/+65 94524360Email: [email protected] or [email protected]
Basic Requirements
Qualification and certification required to support on the job scope of work are:• Welding i.e. CSWIP 3.1, CWI-AWS• NDT Level II i.e. ASNT, PCN• Painting/Coating i.e. BGAS, NACE
Production flow chart
Material Receiving
Cutting & Fit up weld Joint
Welding process
Visual & NDT inspection
Painting/Coating Inspection
Welding inspector role:To ensure quality of material and welding meet to the requirementNDT inspector:To check weld joint using different methods i.e. RT, UT, MT/PT complied to the acceptance criteriaPainting/Coating Inspector:To control & monitor of quality coating meet to the requirement
Quality Documents:- ITP (Inspection Testing Plan)- PQP (Project Quality Plan)- TQ (Technical Query)- NCR (Non Conformance Record) - Procedures: Welding, NDT, Painting, PWHT, Hydrotest- Qualified personnel: QC Inspector, Welder, NDT, Painting Inspector- Certificates & Reports: material cert, equipments & tools cert, material & welding traceability record, NDT report, painting report, PWHT & Hydrotestreport - MDR (Manufacturing Data Record)
Code/Standard/SpecificationMust understand on the following:• Variety of code i.e. material, general
requirements, testing procedure• Product application: structure, pressure vessel,
pipeline, piping process, storage tank etc.• International published i.e. AS, ASTM, API, AWS,
ASME, BS, DIN, EN, EEMUA, ISO, JIS, KS, SNI• Client’s Specification: Total, Shell, Chevron, Exxon,
ENI• Third party/class requirements i.e. ABS, LR, GL,
BV, BKI, DNV
Material InspectionTo check the following:
• Surface condition check i.e. mill scale, material damage, rusty, coating protection
• Dimension check i.e. length, width, thickness, diameter
• Purchase/Delivery Order, hard stamp
• Material certificates check
Mill Certificates
Welding Procedure & welder qualification test
PWPS
Prepare test coupon & Record parameters
NDT
DT
WPS
Result
Acc
RejectPQR
Propose Welder
Prepare test coupon
NDT
DT
Result
Welder Certificate
Acc
Reject
Welding InspectionTo check the following:
• Before welding: approved procedures in place, material, consumables & equipments/tools certificate available, joint prep & preheat within tolerance
• During welding: control parameters i.e. HI, interpasstemp, PWHT
• After welding: visual check
Welding InspectionVariables to be control & monitor during
production weld:
• Material group i.e. specification, thickness, diameter
• Joint design, edge preparation
• Welding position & progression
• Welding parameters: voltage, current, travel speed, Heat Input
• Preheat & interpass temperature
• Post weld heat treatment
WPS (Welding Procedure Specification)
Visual InspectionTo check the following:• Weld bead, toe blend,
weld consistency, arc strike, spatter, grinding mark, mechanical damage, surface colour, misalignment, angular distortion, longitudinal distortion
• Refer to the acceptance criteria as per code/standard i.e. AWS D1.1, API 1104, ASME IX, DNV OS F101 etc.
NDT Inspection
• NDT methods: RT, UT, MT/PT
• Basic testing
• Procedure Qualification Test
• Approval NDT procedure
• Acceptance criteria
Painting/Coating Inspection
• Type: Paints, HSS, 3LPP, Concrete
• Procedure qualification test
• Painting inspection i.e. DFT, pull test, salt test
• Acceptance criteria
Qaulity/Welding Inspection during offshore pipeline & platform installation
Any question?