Pipeline Design & Construction Specifications

Pipeline Design Specifications:

The pipeline is designed in accordance with the relevant sections of ASME B31.4/B31.8, as applicable, supplemented by this document.

The pipeline is designed taking into consideration the design and operating conditions and requirements over its entire projected life cycle including final abandonment, the characteristics of the fluids to be transported, the pressure and temperature requirements, the mode of operations, the geographic location, and the environmental conditions.

𝗗𝗘𝗦𝗜𝗚𝗡 𝗣𝗛𝗜𝗟𝗢𝗦𝗢𝗣𝗛𝗬 𝗔𝗡𝗗 𝗢𝗣𝗘𝗥𝗔𝗧𝗜𝗡𝗚 𝗥𝗘𝗤𝗨𝗜𝗥𝗘𝗠𝗘𝗡𝗧𝗦:

☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗗𝗘𝗦𝗜𝗚𝗡

✅ Bends
✅ Valves
✅ Branch Connection and Fittings
✅ Pigging of Buried Pipelines
✅ Testing and Pre-Commissioning

☑️ 𝗗𝗘𝗦𝗜𝗚𝗡 𝗗𝗔𝗧𝗔

✅ Design Life
✅ General and Environment Data
✅ Terrain and Geology
✅ Pipeline Category

☑️ 𝗥𝗢𝗨𝗧𝗜𝗡𝗚

✅ Route Survey
✅ Buried Pipelines
✅ Aboveground Pipelines
✅ Establishment of Location Classes

☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗠𝗘𝗖𝗛𝗔𝗡𝗜𝗖𝗔𝗟 𝗗𝗘𝗦𝗜𝗚𝗡

✅ Hoop Stress Design Factor
✅ Pipeline Wall Thickness
✅ Stress Analysis
✅ Minimum Elastic Bend Radius
✅ Road | Rig | Track Crossing Calculation
✅ Additional Consideration
✅ Pipeline Transition at Above ground – Below ground
✅ Upheaval Buckling Analysis
✅ On – bottom Stability of Pipelines
✅ Pipeline Burial Depth

☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗖𝗥𝗢𝗦𝗦𝗜𝗡𝗚𝗦

✅ Buried Crossing
✅ Aboveground Crossing

☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗖𝗢𝗠𝗣𝗢𝗡𝗘𝗡𝗧

✅ Line Pipe
✅ Barred Tees
✅ Flanges
✅ Pig Signaler
✅ Isolating Joints

☑️ 𝗖𝗢𝗥𝗥𝗢𝗦𝗜𝗢𝗡 𝗣𝗥𝗢𝗧𝗘𝗖𝗧𝗜𝗢𝗡

✅ External Corrosion Coating Requirement
✅ Field Joint Coating
✅ Cathodic Protection
✅ Internal Corrosion

☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗪𝗘𝗟𝗗𝗜𝗡𝗚 & 𝗡𝗗𝗧
☑️ 𝗣𝗥𝗘𝗦𝗦𝗨𝗥𝗘 𝗧𝗘𝗦𝗧𝗜𝗡𝗚
☑️ 𝗣𝗥𝗘-𝗖𝗢𝗠𝗠𝗜𝗦𝗦𝗜𝗢𝗡𝗜𝗡𝗚
☑️ 𝗣𝗥𝗘𝗦𝗘𝗥𝗩𝗔𝗧𝗜𝗢𝗡 𝗢𝗙 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘
☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗠𝗔𝗥𝗞𝗘𝗥𝗦
☑️ 𝗣𝗜𝗘𝗟𝗜𝗡𝗘 𝗕𝗔𝗦𝗘𝗟𝗜𝗡𝗘 𝗦𝗨𝗥𝗩𝗘𝗬

Pipeline Construction Specifications:

☑️ 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥𝗜𝗡𝗚 & 𝗖𝗢𝗡𝗦𝗧𝗥𝗨𝗖𝗧𝗜𝗢𝗡 𝗖𝗢𝗡𝗦𝗜𝗗𝗘𝗥𝗔𝗧𝗜𝗢𝗡

☑️ 𝗥𝗜𝗚𝗛𝗧 – 𝗢𝗙 – 𝗪𝗔𝗬 | 𝗥𝗢𝗪

✅ Fence and Barriers
✅ Removal of Debris
✅ Grading of ROW
✅ Provision of Diversions
✅ Access to ROW

☑️ 𝗛𝗔𝗡𝗗𝗟𝗜𝗡𝗚, 𝗛𝗔𝗨𝗟𝗜𝗡𝗚, 𝗦𝗧𝗥𝗜𝗡𝗚𝗜𝗡𝗚 𝗔𝗡𝗗 𝗦𝗧𝗢𝗥𝗔𝗚𝗘

✅ Handling of Pipes and Fittings
✅ Hauling and Stringing of Pipes
✅ Damaged Pipes

☑️ 𝗧𝗥𝗘𝗡𝗖𝗛𝗜𝗡𝗚

✅ Trenching
✅ Minimum Cover Requirements for Buried Pipeline
✅ Extra Depth and Clearances
✅ Protection of Underground Utilities
✅ Grading, Padding and Finish Trench
✅ Protection of Trench and Boring Pits

☑️ 𝗣𝗜𝗣𝗘 𝗕𝗘𝗡𝗗𝗦

✅ Elastic Bends
✅ Cold Field Bends
✅ Miter Bends

☑️ 𝗟𝗜𝗡𝗜𝗡𝗚 𝗨𝗣

✅ Care of Pipe
✅ Pipe Defect and Repair
✅ Swabbing, Pipe Beveling and Cleaning Ends of Joints
✅ Pipe Handling and Skid Supports
✅ Night Caps

☑️ 𝗦𝗣𝗘𝗖𝗜𝗔𝗟 𝗖𝗥𝗢𝗦𝗦𝗜𝗡𝗚 | 𝗥𝗢𝗔𝗗 𝗖𝗥𝗢𝗦𝗦𝗜𝗡𝗚𝗦

✅ Minor | Graded Road | Track Crossings
✅ Major Crossing and Asphalt Road Crossings
✅ Buried Pipelines Crossing Other Buried Services

☑️ 𝗧𝗜𝗘 – 𝗜𝗡𝗦

✅ Tie – In to New Pipeline
✅ Method for Tie – In of Pipeline
✅ Tie – In of Pipelines in Trench
✅ Tie – In of Aboveground Flowlines
✅ Pipe Pups
✅ Fitting and Equipments
✅ Pressure Tested Sections

☑️ 𝗪𝗘𝗟𝗗𝗜𝗡𝗚 | 𝗙𝗔𝗕𝗥𝗜𝗖𝗔𝗧𝗜𝗢𝗡 𝗢𝗙 𝗔𝗦𝗦𝗠𝗘𝗕𝗟𝗜𝗘𝗦

✅ Fabrication and Testing
✅ Small Diameter Ancillary Connections to Pipeline
✅ Protection of the Pre-fabricated Assemblies

☑️ 𝗙𝗜𝗘𝗟𝗗 𝗝𝗢𝗜𝗡𝗧 𝗖𝗢𝗔𝗧𝗜𝗡𝗚

✅ Care in Handling Coated Pipes
✅ Holiday Detection and Damaged Coating Repair

☑️ 𝗟𝗢𝗪𝗘𝗥𝗜𝗡𝗚 – 𝗜𝗡 𝗢𝗙 𝗣𝗜𝗣𝗘

✅ Method and Time of Lowering – In Pipe
✅ Lowering – In of Slack Loops

☑️ 𝗕𝗔𝗖𝗞𝗙𝗜𝗟𝗟𝗜𝗡𝗚

✅ Selected Backfill Materials and Padding
✅ Stabilization of Backfill

☑️ 𝗠𝗔𝗥𝗞𝗘𝗥𝗦

☑️ 𝗖𝗔𝗧𝗛𝗢𝗗𝗜𝗖 𝗣𝗥𝗢𝗧𝗘𝗖𝗧𝗜𝗢𝗡 (𝗖𝗣) | 𝗜𝗡𝗜𝗧𝗜𝗔𝗟 𝗥𝗘𝗤𝗨𝗜𝗥𝗘𝗠𝗘𝗡𝗧

✅ Baseline CP – Survey

☑️ 𝗛𝗜𝗚𝗛 𝗩𝗢𝗟𝗧𝗔𝗚𝗘 𝗦𝗬𝗧𝗘𝗠𝗦 𝗜𝗡𝗙𝗟𝗨𝗘𝗡𝗖𝗘𝗦 𝗗𝗨𝗥𝗜𝗡𝗚 𝗖𝗢𝗡𝗦𝗧𝗥𝗨𝗖𝗧𝗜𝗢𝗡

✅ Additional Measures to Work

☑️ 𝗟𝗜𝗠𝗜𝗧𝗔𝗧𝗜𝗢𝗡 𝗢𝗙 𝗪𝗢𝗥𝗞 𝗦𝗣𝗥𝗘𝗔𝗗
☑️ 𝗛𝗬𝗗𝗥𝗢𝗦𝗧𝗔𝗧𝗜𝗖 𝗧𝗘𝗦𝗧 𝗣𝗥𝗢𝗖𝗘𝗗𝗨𝗥𝗘
☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗣𝗥𝗘 – 𝗖𝗢𝗠𝗠𝗜𝗦𝗦𝗜𝗢𝗡𝗜𝗡𝗚 𝗔𝗡𝗗 𝗖𝗢𝗠𝗠𝗜𝗦𝗦𝗜𝗢𝗡𝗜𝗡𝗚

☑️ 𝗖𝗢𝗡𝗦𝗧𝗥𝗨𝗖𝗧𝗜𝗢𝗡 𝗢𝗙 𝗔𝗕𝗢𝗩𝗘 𝗚𝗥𝗢𝗨𝗡𝗗 𝗜𝗡𝗦𝗧𝗔𝗟𝗟𝗔𝗧𝗜𝗢𝗡𝗦

✅ Painting of Above Ground Work
✅ Extent of Coating at Interface Between U/G and A/G
✅ Installation of Isolating Joints

☑️ 𝗖𝗢𝗡𝗦𝗧𝗥𝗨𝗖𝗧𝗜𝗢𝗜𝗡 𝗗𝗢𝗖𝗨𝗠𝗘𝗡𝗧𝗦

☑️ 𝗔𝗦 – 𝗕𝗨𝗜𝗟𝗧 𝗗𝗥𝗔𝗪𝗜𝗡𝗚 𝗔𝗡𝗗 𝗣𝗜𝗣𝗘 𝗕𝗢𝗢𝗞

✅ Equipment Nameplates
✅ Pipe Book

☑️ 𝗠𝗔𝗧𝗘𝗥𝗜𝗔𝗟 𝗜𝗗𝗘𝗡𝗧𝗜𝗙𝗜𝗖𝗔𝗧𝗜𝗢𝗡
☑️ 𝗣𝗜𝗣𝗘𝗟𝗜𝗡𝗘 𝗖𝗢𝗡𝗦𝗧𝗥𝗨𝗖𝗧𝗜𝗢𝗡 𝗖𝗛𝗘𝗖𝗞 𝗟𝗜𝗦𝗧

Documentation: Pipeline Construction Projects

Prior to and during construction operations, following construction documentation for Company review/ approval.

☑️ 𝗣𝗲𝗿𝗺𝗶𝘁 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗮𝗻𝗱/ 𝗼𝗿 𝗮𝗽𝗽𝗿𝗼𝘃𝗮𝗹𝘀
☑️ 𝗖𝗮𝗹𝗰𝘂𝗹𝗮𝘁𝗶𝗼𝗻𝘀 𝗳𝗼𝗿 𝘁𝗲𝗺𝗽𝗼𝗿𝗮𝗿𝘆 𝘄𝗼𝗿𝗸𝘀, 𝗯𝘂𝗼𝘆𝗮𝗻𝗰𝘆, 𝗲𝘁𝗰.
☑️ 𝗖𝗼𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻 𝗱𝗿𝗮𝘄𝗶𝗻𝗴𝘀.

☑️ 𝗠𝗲𝘁𝗵𝗼𝗱 𝗦𝘁𝗮𝘁𝗲𝗺𝗲𝗻𝘁𝘀 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗳𝗼𝗹𝗹𝗼𝘄𝗶𝗻𝗴 𝗮𝗰𝘁𝗶𝘃𝗶𝘁𝗶𝗲𝘀:
✅ Pre-Construction Survey
✅ Clearing and Grading of ROW
✅ Pipe Handling, Storage, Hauling and Stringing
✅ Cold Bending
✅ Lining Up and Welding
✅ Field Joint Coating
✅ Holiday Detection
✅ NDT
✅ Upheaval/ Lateral buckling check
✅ Trench Excavation and Padding
✅ Pipeline Lowering-in
✅ Backfilling and Berming
✅ Tie-ins and Hot Taps
✅ Special Crossings
✅ Auger Bore
✅ Thrust Bore
✅ Pipework Fabrication and Installation of Appurtenances
✅ Cathodic Protection Facilities
✅ Management of water (obtaining water, re-use and disposal)
✅ As-built Survey

☑️ 𝗣𝗿𝗼𝗰𝗲𝗱𝘂𝗿𝗲𝘀 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗳𝗼𝗹𝗹𝗼𝘄𝗶𝗻𝗴 𝗼𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀:
✅ Padding § Backfilling § Welding & Inspection
✅ Cleaning, Gauging and Hydrostatic Testing
✅ Pre – Commissioning
✅ Preservation of pipeline (if required by Company)
✅ Commissioning

☑️ 𝗥𝗮𝗱𝗶𝗼𝗴𝗿𝗮𝗽𝗵𝘆 𝘄𝗲𝗹𝗱 𝗺𝗮𝗽𝘀
☑️ 𝗣𝗶𝗽𝗲 𝗮𝗻𝗱 𝘄𝗲𝗹𝗱𝗶𝗻𝗴 𝗯𝗼𝗼𝗸
☑️ 𝗡𝗗𝗧 𝗿𝗲𝗽𝗼𝗿𝘁𝘀 (𝗥𝗮𝗱𝗶𝗼𝗴𝗿𝗮𝗽𝗵𝘆, 𝗨𝗹𝘁𝗿𝗮𝘀𝗼𝗻𝗶𝗰 𝗮𝗻𝗱 𝗠𝗣𝗜).
☑️ 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹 𝘁𝗲𝘀𝘁 𝗿𝗲𝘀𝘂𝗹𝘁𝘀 (𝗰𝗼𝗮𝘁𝗶𝗻𝗴, 𝘄𝗲𝗹𝗱𝗶𝗻𝗴, 𝗽𝗮𝗶𝗻𝘁𝗶𝗻𝗴, 𝗲𝘁𝗰.)
☑️ 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲𝘀, 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹 𝗥𝗲𝗰𝗲𝗶𝗽𝘁𝘀, 𝗲𝘁𝗰.
☑️ 𝗩𝗲𝗻𝗱𝗼𝗿 𝗱𝗿𝗮𝘄𝗶𝗻𝗴𝘀
☑️ 𝗖𝗼𝗺𝗽𝘂𝘁𝗲𝗿𝗶𝘇𝗲𝗱 𝗽𝗼𝘁𝗲𝗻𝘁𝗶𝗮𝗹 𝗹𝗼𝗴𝗴𝗶𝗻𝗴 𝘁𝗲𝘀𝘁 𝗿𝗲𝘀𝘂𝗹𝘁𝘀
☑️ 𝗤𝗖 𝗥𝗲𝗹𝗲𝗮𝘀𝗲 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲 𝗳𝗼𝗿 𝗛𝘆𝗱𝗿𝗼𝘀𝘁𝗮𝘁𝗶𝗰 𝗧𝗲𝘀𝘁.

In addition to weekly and monthly progress report as per the AGREEMENT requirements, Daily basis the following reports, but not limited to:

☑️ 𝗦𝗲𝗽𝗮𝗿𝗮𝘁𝗲 𝗣𝗿𝗼𝗴𝗿𝗲𝘀𝘀 𝗿𝗲𝗽𝗼𝗿𝘁 𝗼𝗳 𝗮𝗹𝗹 𝗰𝗿𝗲𝘄𝘀.
☑️ 𝗗𝗮𝗶𝗹𝘆 𝘄𝗲𝗹𝗱𝗶𝗻𝗴 𝗿𝗲𝘀𝘂𝗹𝘁𝘀, 𝗿𝗲𝗽𝗮𝗶𝗿 𝗮𝗻𝗱 𝗡𝗗𝗧 𝗿𝗲𝘀𝘂𝗹𝘁𝘀
☑️ 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹 𝗥𝗲𝗰𝗲𝗶𝗽𝘁
☑️ 𝗗𝗮𝗺𝗮𝗴𝗲𝘀
☑️ 𝗔𝗰𝘁𝘂𝗮𝗹 𝗪𝗲𝗮𝘁𝗵𝗲𝗿 𝗖𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻
☑️ 𝗔𝗰𝗰𝗶𝗱𝗲𝗻𝘁𝘀

Any other report required to monitor the Construction Progress.

As-Built Drawings: Pipeline Construction Projects

The ‘As-Built’ Alignment Sheets shall also contain the following information:

✅ Pipeline profile
✅ Changes in wall thickness, materials
✅ Location and details of valves, insulating joints, fencing, etc.
✅ Location and details of buried services
✅ Location and details of road, water crossings, etc.
✅ Location and type of coating
✅ Location and type of weighting, anchoring
✅ Location and type of markers
✅ Location of further appurtenances (pig-signaller, etc.)
✅ Location of ROW and of pipeline with respect to ROW
✅ Location of CP test post, km pup piece
✅ Angle of bends and TP locations
✅ Type of soil Ø Sand padding
✅ Actual pipe cover
✅ Type of road pavement
✅ Details of bank or plantation protection, number of insulators, seals, etc.
✅ Type of bends
✅ FOC Joint (Joint Pit) locations
✅ Section valve stations, if any
✅ Special fittings if any
✅ Special provisions such as protection/ identification slabs

💡 ” ℙ𝕀ℙ𝔼 – 𝔹𝕆𝕆𝕂” 💡
============================================

☑️ Data relevant to the project and section thereof.
☑️ Sequential number
☑️ Length brought forward (for pipes and other materials)
☑️ Length to bring forward (for pipes and other materials)
☑️ Alignment sheet number and at least the location thereon of two welds on every page of the pipebook.
☑️ Diameter of pipeline
☑️ Length of each pipe
☑️ Wall thickness
☑️ Pipe number
☑️ Identification number, certificate number
☑️ Cut and re-numbered pipe ends
☑️ Coating
☑️ Date of stringing
☑️ Date of welding
☑️ Direction of working
☑️ Weld number
☑️ Welder number
☑️ Type of welding, electrode, diameter
☑️ Weld Treatment
☑️ Equipment used for radiography
☑️ Limits of valve stations, water crossings, etc.
☑️ Test pressure, date and test (hydrostatic)
☑️ Location of Cathodic Protection test posts shall be included and identified by GPS coordinates. Ø Length of section per page in line separated in the pipes including field bends and factory bends and/ or other in-line fittings
☑️ Length to bring forward (pipes and other materials)
☑️ Length brought forward (pipes and other materials)

Pipeline Design Specifications:

Pipeline Construction Specifications:

Documentation: Pipeline Construction Projects

As-Built Drawings: Pipeline Construction Projects

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