Weld Repair Procedure Tapis Rev.A

Doc.No: MYTZ-TW-VPWLD-790003

WELD REPAIR PROCEDURE

Rev.No:A Rev.Date:14/02/2012

TABLE OF CONTENT 1.0

PRUPOSE

2.0

SCOPE

3.0

REFERENCES CES

4.0

DEFINITIO ITION N

5.0

PROCE ROCED DURE

6. 6.0 0

RESP RESPON ONSI SIBI BILI LITI TIES ES

7.0

RECORDS

1.0 PURPOSE

Transwater API Sdn. Bhd. Confidential & Proprietary

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The purpose of this procedure develop is to ensure that weld repair are done in prescribed manner and acceptable to project specification, code and standard applied for Tapis EOR Rejuvenation project. 2.0

SCOPE

This procedure covers the weld repair of steel structural and piping welds during the fabrication of GuE and TaF NAG Condensate Allocation Metering Skid for Tapis EOR Rejuvenation Project. 3.0 REFERENCES

ASME B31.3

Process Piping

AWS D1.1

Structural Welding Code-Steel

MPDS 03-19-02

Upstream Piping Fabrication, Erection, Inspection, Testing, and Cleaning Upstream Process Piping Welding and Inspection

MPDS 29-03-02

4.0

DEFINITIONS

Tapis EOR and Rejuvenation Project

PROJECT

Exxon Mobil Exploration & Production (M) Inc. (EMEPMI)

CLIENT

5.0

CONTRACTOR

Transwater API Sdn. Bhd. (TASB)

SUB-CONTRACTOR

Piping Fabricator

NDT

Non Destructive Testing

PROCEDURE

5.1

Any weld area does not meet the requirement for Visual inspection, Liquid Penetrant testing, Magnetic particle testing, Radiographic Testing or Ultrasonic Testing shall be repaired. The defective area may be ground or excavated down to sound metal as required.

5.2 Liquid Penetrant testing or Magnetic particle testing shall be used to confirm that the defective area are totally remove before re-welding take place. The welder use for repair shall be qualified and approve by CLIENT. WPS use for repair should be the same WPS use at the first instance unless otherwise specified. 5.3 After the repair has been completed the area shall be tested using the same method of inspection and same NDT procedure used to locate the defective area in the first instance. 5.4

Two repair attempts shall be allowed in any one defective area. The joint shall be cut and preparing as new joint after two attempt repair was conducted.


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6.0

RESPONSIBILITIES

SUB-CONTRACTOR will be responsible for weld repair execution and monitoring by CONTRACTOR to ensure it accordance this weld repair procedure and meet applicable project specification, code and standard.

7.0

RECORDS

Any documentation generated during repair welding shall be form part of the record and shall compile in appropriate section.


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Weld Repair Procedure Tapis Rev.A

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