The document provides a method statement for piping installation works at the Dabbiya site for the Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins project. It outlines the scope of works, sequence of activities, resources, HSE requirements, and emergency contacts. Piping works will involve transporting prefabricated spools to site, lifting them into position, welding field joints, installing valves, and testing. Welding will follow approved procedures and NDT testing. HSE precautions like PPE and fire safety will be enforced during the medium risk work.
Oil & Gas Plant Construction, Project Execution PlanDavid H Moloney
Details of how a Gas & Oil Plant is constructed, and how the progress, safety and quality is monitored and controlled. Also the measures to ensure that the site is environmentally friendly.
Oil & Gas Plant Construction, Project Execution PlanDavid H Moloney
Details of how a Gas & Oil Plant is constructed, and how the progress, safety and quality is monitored and controlled. Also the measures to ensure that the site is environmentally friendly.
8 Lifting Operations with mobile crane Risk Assessment Templates
Crane checks on arrival to site
PRIOR TO USE
Access of crane to work areas
Siting and setting up of crane
Lifting of equipment and material
(Mobile crane Operator)
Crane supervision
Crane Maintenance
(revised 06-06-2018)
Offshore shift supervisor cum Offshore Construction SuperintendentMuhammad MuhdKhairul
-To Acting as a offshore construction superintendent OR offshore construction supervisor.
To be a leader@front line supervisor to overview/execution the whole task/workpack,drawing, project materials & manpower during project turnaround period.
-work as a team with offshore field engineer and client to updated project plan and any revision made by onshore project team/office.
-To ensure that the whole tasks is completed timely as per project period.
-To ensure all crews members is aware in safety aspect and working safely till project completed.
-My working experience is 17 years and working records as well as involvement in oils and gas industry
(offshore and onshore) for construction and fabrication, Provision of
hook-up, commissioning, Topsides major maintenance (TMM), Facilities
improvement project (FIP), Project upgrading for fire and gas
system//UPS/IPS/IDS and F & G. Topsides corrosion and base maintenance
(TCBM), Project repairing, Installation and maintenance and replacement of piping and structural activities.
Table of Content
1. INTRODUCTION
1.1. PURPOSE
1.2. REVISIONS
1.3. DISTRIBUTION LIST
1.4. PROJECT DETAILS
1.5. PROJECT LOCATION
2. COMPLIANCE WITH LAWS AND REGULATIONS
3. DEFINITIONS & ABBREVIATION
3.1. DEFINITIONS
3.2. ABBREVIATION
4 ARABTEC HSEQ POLICIES & CERTIFICATES HSE POLICY STATEMENT
NO SMOKING POLICY
SAFE DRIVING POLICY
WASTE MANAGEMENT POLICY
WELFARE MANAGEMENT POLICIES
ISO CERTIFICATES
ABU DHABI EHSMS CERTIFICATE OF COMPLIANCE
5 PROJECT HSE OBJECTIVES
6 ORGANIZATION RESPONSIBILITIES AND ACCOUNTABILITIES
7 HSE COMMUNICATION ORIENTATION AND TRAINING
7.1.1 SITE RULES
7.1.2 GENERAL SITE RULES
7.1.3 PERSONAL SAFETY SITE RULES
7.1.4 SAFETY REFRESHER - TRAINING
8 Lifting Operations with mobile crane Risk Assessment Templates
Crane checks on arrival to site
PRIOR TO USE
Access of crane to work areas
Siting and setting up of crane
Lifting of equipment and material
(Mobile crane Operator)
Crane supervision
Crane Maintenance
(revised 06-06-2018)
Offshore shift supervisor cum Offshore Construction SuperintendentMuhammad MuhdKhairul
-To Acting as a offshore construction superintendent OR offshore construction supervisor.
To be a leader@front line supervisor to overview/execution the whole task/workpack,drawing, project materials & manpower during project turnaround period.
-work as a team with offshore field engineer and client to updated project plan and any revision made by onshore project team/office.
-To ensure that the whole tasks is completed timely as per project period.
-To ensure all crews members is aware in safety aspect and working safely till project completed.
-My working experience is 17 years and working records as well as involvement in oils and gas industry
(offshore and onshore) for construction and fabrication, Provision of
hook-up, commissioning, Topsides major maintenance (TMM), Facilities
improvement project (FIP), Project upgrading for fire and gas
system//UPS/IPS/IDS and F & G. Topsides corrosion and base maintenance
(TCBM), Project repairing, Installation and maintenance and replacement of piping and structural activities.
Table of Content
1. INTRODUCTION
1.1. PURPOSE
1.2. REVISIONS
1.3. DISTRIBUTION LIST
1.4. PROJECT DETAILS
1.5. PROJECT LOCATION
2. COMPLIANCE WITH LAWS AND REGULATIONS
3. DEFINITIONS & ABBREVIATION
3.1. DEFINITIONS
3.2. ABBREVIATION
4 ARABTEC HSEQ POLICIES & CERTIFICATES HSE POLICY STATEMENT
NO SMOKING POLICY
SAFE DRIVING POLICY
WASTE MANAGEMENT POLICY
WELFARE MANAGEMENT POLICIES
ISO CERTIFICATES
ABU DHABI EHSMS CERTIFICATE OF COMPLIANCE
5 PROJECT HSE OBJECTIVES
6 ORGANIZATION RESPONSIBILITIES AND ACCOUNTABILITIES
7 HSE COMMUNICATION ORIENTATION AND TRAINING
7.1.1 SITE RULES
7.1.2 GENERAL SITE RULES
7.1.3 PERSONAL SAFETY SITE RULES
7.1.4 SAFETY REFRESHER - TRAINING
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Qa qc mech enggs or sr.qc inspector welding.piping.pipelineJOBY Joby.Stephan
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1. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Construction of Piping Works at Dabbiya Clusters
Method Statement
For
Piping Works at Site – for New Piping at Dabbiya
Clusters 14P-9J-7G-5E-1A
Revision Status:
Second Issue CM CM CM
First Issue CM CM CM
REV DATE STATUS PREP.BY CHKD. BY APPD.BY
2. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 2 of 12
TABLE OF CONTENTS
1. PURPOSE
2. SCOPE
3. REFERENCES
4. DEFINITIONS
5. RESPONSIBILITIES
6. SEQUNCE OF WORKS
7. QA/QC
8. RESOURCE
9. HSE REQUIMENTS
10. EMERANCY CONTACTS
3. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 3 of 12
1.0 Purpose:
The purpose of this methodology is to provide a systematic control and direction for the activity
for the installation of piping at site. This method statement provides the expectation to execute
work in safe, eco-friendly manner and in compliance to the ADCO HSE and Quality
requirements.
2.0 Scope:
As part of the scope of work for the Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
project Matrix is to carry out the installation of piping at site and other associated works. This
installation will be comprised of welding of field joints and the assembly of completed pipe
spools which were prefabricated at Matrix’s workshop.
As it stands there are five clusters in Dabbiya under this scope, all of the clusters will require the
installation of new piping. The piping will vary in terms of pipe class, where some wells will
have 1500# piping for the water injection wells and others have KG10 piping for gas injection.
The following clusters will be covered under this scope:
Cluster 14P – Water Injection
Cluster 9J – Gas Injection
Cluster 7G – WAG
Cluster 5E – Dual Water Injection and WAG injection
Cluster 1A – Gas injection
3.0 References
ADCO Contract No: 15410.01/EC 10825-Contracts Specification and Documents
ADCO Doc No:31.38.01.31A- Shop and Field Fabrication of Piping
ADCO Doc No: 30.99.12.0610-Rev3- Technical specification for piping system
ADCO HSE Manual Volume-10
ASME B 31.3- Process piping
4. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 4 of 12
ADCO WS-1 Rev2-Specification for welding and inspection of shop and field fabricated
carbon steel process and utility.
DOC No P12169 REV1- Project Quality Plan
AWS D1.1 -Structural welding code
DEP 34.28.00.31A -Structural steel works
4.0 Definitions
Client - Abu Dhabi Company for Onshore Oil Operations ( ADCO)
QHSE - Quality, Health, Safety & Environment
QCI - Quality Control Inspector
ITP - Inspection and Test Plan
WPS - Welding Procedure Specification
NDT - Non Destructive Testing
PWHT - Post Weld Heat Treatment
5.0 Responsibilities
Matrix shall arrange all the resources deemed necessary for carrying out the works related to
the piping installations. In addition to the above Matrix will also ensure that adequate safety
precautions are put in place in order to carry out the job in a safe manner.
Construction Manager:
The Construction Manager is responsible in executing the works as per ADCO procedure
and approved method statement.
Supervisor/ Foreman:
Ensure that welding equipment, baking oven, quiver are in good condition.
Ensure welding is done as per the approved WPS and approved for construction
5. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 5 of 12
drawings and in line with ADCO HSE requirements.
Ensure that weld maps / spool drawings are available.
Coordinate with QC personnel to study the cause of any reported weld defects and
arrange to take corrective and preventive action.
Adhere to the ADCO HSE requirements.
Comply with ADCO PTW requirements.
QC Inspector:
Carry out the inspection as per the Inspection and test plan.
Approving/ rejecting the item based on inspection.
Submitting the quality records to the client and getting their approval.
Responsible to keep records of all inspection related activities & Material traceability.
Adhere to the HSE requirements.
HSE Officer:
Advise the construction crew on HSE aspects and ensure their safety.
Arrange through Job performer for tool box talk covering risk assessment in language
understandable by workers.
Cross checking certified material devices and equipments are used.
Do weekly, monthly HSE audit.
Ensure appropriate safety measures are taken as per the risk assessment and
controlled documents.
Ensure that all staff adhere to the HSE plan and HSE requirements.
6.0 Sequence of Works
6.1 PTW Issuance
A Hot Work permit will be issued to carry out the works, along with the permit will
be the attached crane certificate, approved method statement, risk assessment, and
approved drawings shall also be attached.
6. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 6 of 12
6.2 Safety Setup
Arrange the required safety signs, barricades and other related safety precautions
highlighted in the risk assessment and permit prior to commencing the works.
The works shall only commence after the job performer has checked and ensured that
all safety precautions and safety requirements are in place.
Ensure employees understand the hazards and control measures related to the critical
activities, i.e. lifting, welding.
Ensure personnel stay away from lifting zone and do not enter under the suspended
loads.
Qualified First Aider must be on site and identified by a sticker on his helmet.
Display Emergency Contact number on site.
6.3 Site Works-Field Joints
Prefabricated pipe spools shall be carefully loaded and transported to site. The
transported spools will be tied down with ample support to prevent any damage.
Spools will be tied down using nylon straps/belts. Under no circumstances will the
pipes be tied down using chains or cables to prevent any scratches or damage.
Upon receiving the pipes at site, they shall be offloaded and placed either in position
on the pipe supports or placed on the ground on top of wooden supports. All flanged
ends or open ends will remain sealed to prevent any sand or debris from entering.
Lifting of the pipe spools shall be done by using either a HIAB or Crane. Third Party
certified slings and riggers shall be used during the lifting operations. All lifting tools
and tackles shall be color coded based on the current color code.
Once the spools are lifted into position, the fabricator/pipe fitter shall ensure that
proper alignment is achieved, lengths of spools are correct as per the piping layout
and isometric sheet prior to either bolting the spools together or welding any field
joints.
Welding and grinding of field joints shall be carried out inside a closed habitat made
7. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 7 of 12
of fire retardant material. Any live facilities will be covered with the fire retardant
blanket as an additional precaution.
Welding shall be done as per the approved procedure, specification and approved for
construction drawings.
Approved welders for the specific WPS shall be used for welding.
Welded surfaces shall be clean and free from grease, oil, paint or other foreign
material which are detrimental to welding.
When the weather does not permit satisfactory workmanship welding shall not be
done, on site in windy condition the pipe ends shall be closed to prevent through
draughts during welding. Suitable covering using tarpaulin (fire retardant) shall be
provided. Welding shall not be done when the weld surface is wet or when the area is
exposed to rain and strong windy conditions. Preheating to be done properly during
cold weather.
6.4 Site Works - Welding of Pipe Supports
As required some structural steel pipe supports are to be welded to the base plates
inserted into the precast foundations. Other pipe supports are to be welded to the
existing pipe support structural steel racks.
Locations to be welded will be covered as required with a fire proof tarpaulin.
The base plate or support shall be cleaned by grinding to remove any surface debris,
or paint.
The support will then be placed in position, aligned, and tack welded. Once tack
welding is completed, the alignment will be rechecked and final welding will be
carried out.
Welding shall be done based on the approved welding procedure for structural steel.
6.5 Site-Works-Valve Installation
Where ever valves are to be installed, the installation/orientation of valve handles and
flow direction shall be according to the piping layout.
All valves to be installed will be cross checked according to the mesc number to
8. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 8 of 12
ensure that the proper valves are installed in the proper location.
Valves shall be installed in the closed position except for ball valves and plug valves.
New gaskets will be installed between the valve flange and pipe flange. Final
tightening of all nuts shall be done once proper alignment is achieved.
Bolting of flanges will be done in a cross pattern.
All bolts, gaskets and valves shall be properly stored to avoid contamination with the
environment. Valve ends will be sealed until installation and gaskets and bolts shall
be kept clean of any debris such as sand.
6.6 Scaffolding
Scaffolding if required shall be erected by qualified personnel in a safe and suitable
manner.
Scaffolding above 2 m in height shall be inspected by a scaffolding inspector and a
scaff-tag shall be signed and provided on the scaffolding near the ladder. No one shall
use the scaffolding without the scaff-tag being approved.
Scaffolding material to be used shall be in good conditions, brass hammer shall be
used to assemble and tighten the scaffolding locks.
7.0 QA/QC
7.1 Weld Identification
Each weld shall be uniquely identified with the joint number and welder number.
After completing the weld the welder shall mark the joint no: & welder no: near the
weld using paint or indelible crayon.
After welding each spool the line no, spool no & etc shall be marked / tagged on the
spool and stocked over wooden sleepers or other suitable material above ground.
7.2 Non Destructive Testing
Non destructive testing shall be done as per the approved procedure using approved
sub contractor.
9. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 9 of 12
7.3 Alignment Circumferential Welds
Butt weld alignment shall satisfy the requirement of ANSI B 31.3 and conditions
stated below.
Internal misalignment of pipe work shall not exceed 1.6 mm in order to facilitate
welding of the root pass. When a GTAW process is to be used maximum misalignment
shall not exceed 0.8 mm. If there is excess misalignment tapering of the internal diameter
of the thicker member to a taper of 1:4 shall be done. Ensure minimum wall thickness is
maintained.
If misalignment up to 3.2 mm exists, internal grinding or machining may be
conducted to improve root alignment, provided the taper does not exceed 1 in 4
maximum and the minimum required wall thickness is maintained.
External or internal clamps shall be used not only for misalignment correction but
also for alignment in general. Misalignment correction using heavy hammering or
heating of the pipe shall not be done.
7.4 Weld Separation
Circumferential welds (Girth welds):
Distance between weld shall be measured between the adjacent edges of the cap passes.
Circumferential butt welds (Girth welds) shall be separated by maximum possible
distance. However between fittings, short pipe lengths may be required. In this case, butt
welds shall not be within 75 mm of adjacent girth weld for nominal pipe sizes of 75 mm
and above. For pipe sizes less than 75mm nominal, girth weld shall not be within the
greater of 4 times the wall thickness or one pipe diameter of adjacent girth welds. Girth
welds closer than the above limit shall require approval of the client and may require
PWHT solely at the discretion of the company.
Branch / Nozzle / attachment welds.
Branch / nozzle and other pressure attachment welds shall have minimum 3” distance to
adjacent pressure welds. Non pressure containing attachment welds shall be separated by
10. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 10 of 12
2” from adjacent pressure containing welds.
Longitudinal seams of adjacent pipes shall be separated by at least 4”.
7.5 Repair Welding
Any defects which require repair shall be entirely removed to sound metal. Metal
shall be removed 1” on both side of the defect without substantial removal of the
Base metal.
By grinding, the metal shall be removed and the groove shall be smooth without any
undercut. Visual examination and magnetic/dye penetrant test shall be done on the
grove.
If repairs are done after hydro test / PWHT, the same will be repeated after repair.
Welding repair shall be done only twice. After second repair if the weld is not
acceptable the weld shall be removed, re beveled and re welded.
Same NDT technique & acceptance criteria for the original weld shall be done after
repair welding.
Proper cutting disc shall be used. Grinding disc shall not be used for cutting purposes.
8.0 Resources
Welding machine
Grinding machine
Preheating torches with propane gas cylinders
Holding ovens/baking ovens
PWHT equipment
Hiab, Crane, trailer
Cutting tools
Generator
11. Al Dabbiya Phase-1 Additional Injection Wells Tie-Ins
Contract No. 15410.01/EC10825; Matrix Project No- P12169
Method Statement for Piping Works at Dabbiya Clusters
Page 11 of 12
9.0 HSE Requirements
9.1 Risk Rating
Risk Rating is Medium: Job will have to be closely supervised by Job Performer, Safety
officer and Supervisor.
9.2 HSE Requirements
Basic PPE, such as coverall, helmet, safety shoes, gloves, goggles and face mask (during
windy days).
Appropriate approved PTW and certificate shall be obtained prior to commencing the
job.
Standby vehicle will be present for emergency purposes.
Daily TBT
Approved and valid fire extinguishers (dry powder) shall be available.
Sufficient cold drinking water to be available at all times.
Third party certificates of all riggers and cranes
Proper color coding of all lifting tools, tackles
10.0 Emergency contacts
The following shall be the contact number in case of any emergency.
1. ADCO Control Room - - 02 6046999
2. Mr. Chafic Mansour - Project Manager - 050 6670376
3. Mr. Zakir Ali-Safety Officer - 050 6112845