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Pipeline Design Philosophy

R
RAPHAEL AGORUA

This document provides technical data and material specifications for the 37 km pipeline system of the Ogabiri Gas Gathering Project in Nigeria. It includes dimensions, quantities, anti-corrosion coatings, and results from pipeline simulations. The pipeline will connect five flow stations and facilities to transport gas to the Nigerian Gas Company's pipeline network. It discusses the project background, scope of work, and acknowledgements. It also provides illustrations of the pipeline routing and network simulations.

Engineering
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FIELD ENGINEERING LIMITED PROSERVE OGABIRI GAS GATHERING PROJECT. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GATHERING PROJECT. DCC NUMBER: PROS/OGBR/PIP/RPT/151003 RO2 01/12/2015 IFR A.R.O. A.M. E.C.U. RO1 04/11/2015 IDC A.R.O. A.M. E.C.U. Revision Date: Status: Issued by Checked by Approved by COMPANY Approval
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 2 of 19 TABLE OF CONTENTS Page List of Illustrations --------------------------------------------------------------------------------- 3 List of Tables --------------------------------------------------------------------------------------- 3 List of Abbreviations ------------------------------------------------------------------------------ 3 1.0 INTRODUCTION -------------------------------------------------------------------------- 5 1.1 BACKGROUND ----------------------------------------------------------------------- 6 1.2 SCOPE OF WORK --------------------------------------------------------------------- 7 1.3 ACKNOWLEDGEMENT -------------------------------------------------------------- 7 1.4 DESIGN INTERFACE ------------------------------------------------------------------ 8 2.0 FORWARD ------------------------------------------------------------------------------- 10 3.0 TECHNICAL DATA FOR OGABIRI GAS GATHERING PROJECT ---------- 11 3.1 DIMENSION FOR PIPELINES -------------------------------------------------------- 11 3.2 QUANTITIES ---------------------------------------------------------------------------- 12 3.3 ANTICORROSION --------------------------------------------------------------------- 13 3.4 RESULTS OF DETAILED DESIGN AND ENGINEERING --------------------- 14 4.0 CONCLUSION -------------------------------------------------------------------------- 17 REFERENCE DOCUMENT-----------------------------------------------------------------------------17 DOCUMENT HIERARCHY-----------------------------------------------------------------------------17 LIST OF ILLUSTRATION Fig.1.0 Map Outlay of Ogabiri Gas Gathering Project------------------------------------------------ 6 Fig.1.1 Pipesim Simulation Network of the Ogabiri Gas Gathering Project-----------------------8
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 3 of 19 Fig.1.2 Hysis Simulation Network of the Ogabiri Gas Gathering Project----------------------9 LIST OF TABLES Table.3.1. Dimension for Pipelines -------------------------------------------------------------------8 Table.3.2.Quantities ------------------------------------------------------------------------------------12 Table.3.3.Anti-corrosion -------------------------------------------------------------------------------13 Table.3.4. Result of Detailed Design and Engineering --------------------------------------------14 LIST OF ABBREVIATIONS/ACRONYMS ASME– American Society of Mechanical Engineering. ASTM– American Society of Testing and Material. 13 Cr - 13-Chrome 16” - Twenty inches o C - Degrees Celsius C/S – Cladded Steel CFC – Chlorofluorocarbon CO - Carbon monoxide CO2 - Carbon dioxide DNA – Deoxyribonucleic Acid. DSAW - Double Submerged Arc Welded ELPS – Escravos Lagos Pipeline System. ERW - Electric Resistance Welded FBE - Fusion Bonded Epoxy. FEED – Front End Engineering Drawing.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 4 of 19 GHG – Greenhouse Gas. GRE - Glass Reinforced Epoxy HDPE - High Density Polyethylene HCFC – Hydrochlorofluocarbon ISO - International Standard Organization M/F - Manifold m/s - meter per second NGC – Nigerian Gas Company. NNPC – Nigerian National Petroleum Corporation. NO2 - Nitrogen dioxide N2O – Di-nitrogen oxide NO- Nitrous oxide NOx – Nitrogen-Oxygen compounds. OPEC – Organization of Petroleum Exporting Countries. PVC - Polyvinyl casing ROW - Right of Way RTP - Reinforced Thermoplastic SCF – Standard Cubic Feet. SPDC - Shell Petroleum Development Company UNFCCC – United Nations Framework Convention on Climate Change. NGS– Nigerian Gas Station. API– American Petroleum Institute. WAGC– West African Gas Company.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 5 of 19 1.0 INTRODUCTION The world as a global village is confronted presently with the threat of extinction as a result of incessant emission of dangerous gases such as carbon dioxide(CO2), NOx (N2O,NO,NO2), Hydrogen Sulfide(H2S), Halocarbons(CFCs and HCFCs), methane, HO radicals, etc. These are responsible for the destruction of the stratospheric ozone layer, that protects the earth from harmful ultraviolet radiation, also known as Green House Gases (GHG), and has subjected the global community to a disastrous ecological imbalance known as Ozone Layer Depletion, which resulted to a catastrophic phenomenon called Global Warming, a precursor of climate change and other pandemic effects, such as the damaging of the DNA of plants and animals, skin cancers, cataracts, etc. These gases are mainly anthropogenic in nature (i.e. caused by human factors) and are mostly due to gas flaring. No wander, the United Nations in the Frame Work Convention on climate change (UNFCCC) known as Kyoto Protocol, declared the above gases as Green House Gases, and they are mainly caused by gas flaring. This resulted in the United Nations resolution to stop gas flaring. A recent data released from the Nigerian National Petroleum Corporation (NNPC), that oil and gas companies in Nigeria burn over $3.5 to $5 billion yearly from over 257 flow stations in the Niger Delta. That specifically, the country flared about 17.15 per cent of the 95,471 metric tons of gas produced in June 2015 alone. Also, the Organization of Petroleum Exporting Countries (OPEC) stated in 2015 Statistical Report, that Nigeria produced 86,325.2 million standard cubic meters in 2014. Also, NNPC disclosed that Nigeria lost up to $868.8 million, about =N=173.76 billion to gas flaring in 2014.Using the Nigeria Gas Company’s(NGC) price of $3 per 1000 SCF of gas at the current exchange rate realities,, the flaring of 289.6 billion SCF of gas translated to a loss of $868.8 million, an equivalent of =N=173.76 billion. Specifically, the oil and gas company produced 2.524 trillion SCF of gas, utilized 2.235 trillion SCF and flared 289.6 billion SCF. Against these backdrops and the likes of it, Nigeria came up with a legislation to stop gas flaring. This gave birth to the present gas monetization process in Nigeria, for which Ogabiri Gas Gathering project is the nucleus.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 6 of 19 1.1 BACKGROUND Fig.1.0 Map Outlay of Ogabiri Gas Gathering Project. Ogabiri Gas Gathering Project is made up of five flow stations/facilities, thus: Ibugben, Ogabiri-1, Ogabiri-2, Rumokun-1 and Rumokun-2, with the central gas gathering facility located at Ogabiri-1, gathering gases from Ibugben, Rumokun-1 and 2 respectively, via gas pipelines, existing along the right of way. Then, en Route Ogabiri-2, where the new Gas Treatment and Compression Facilities are to be installed. Here, the gas will be treated according to the West African Gas Pipelines’ specification before exiting to the NGC Excravos-Lagos Pipeline Systems (ELPS) via a 4.5km new right of way. 1.2 SCOPE OF WORK. The Field Engineering Limited’s Ogabiri Gas Gathering Project contract scope of this work covers the preparation of Pipelines Material Datasheets for the entire flow stations and their corresponding pipeline connections, that made up the Ogabiri Gas Gathering Project. To achieve this, the entire Ogabiri Projects’ various streams’gas and water compositons and conditions were simulated using PIPESIM and HYSIS. The design simulation of the various pipeline systems connecting the entire facilities en route the
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 7 of 19 Escravos- Lagos-Pipelines-System (ELPS), was done using PIPESIM and HYSIS simulations, as presented in the tables below. The design conditions, compositions, calculation results, codes, etc, of the high pressure gas line systems of the entire project facilities as shown in the tables below. Pipeline testing is also included to ensure compliance to ISO, ASME and ASTM specifications. 1.3 ACKNOWLEDGEMENT. The contractor(our company), Field Engineering Limited, do hereby express their profound gratitude to Shell Petroleum Development Company(SPDC), Nigeria, and their partner Nestoil Nigeria Limited, for the opportunity to execute on their behalf, the Ogabiri Gas Gathering Project. A contract project of this magnitude could not have been satisfactorily executed without the active support, co-operation and understanding, as well as abiding patience of the SPDC and Nestoil staff that are intimately connected with the project. In this regard, we sincerely thank Dr. Chris Ucheobi, the Head of the K2S Engineering Department, Mr. Lovel Omoanreghan and Mrs. Roseline Uzuegbu, of Nestoil Nigeria Limited, respectively. Also, Adedotun, Taiwo, Oladipo, facilitators of the training consultants to Nestoil. Our company’s appreciation and thanks go to the chiefs, community leaders and youths of the respective communities involved directly or indirectly for the conducive atmosphere enjoyed during the execution of this project. Our special gratitude also goes to the youth leaders of the respective communities involved, for their invaluable maturity, assistance and roles towards a hitch-free execution of this project contract.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 8 of 19 1.4 DESIGN INTERFACE. Fig.1.1 Pipsim Simulation Network of the Ogabiri Gas Gathering Project.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 9 of 19 Fig.1.2 Hysis Simulation Network of the Ogabiri Gas Gathering Project
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 10 of 19 The 37 km Ogabiri Gas Gathering Project via existing Right of Way (ROW), en route the bushy/swampy terrain of the communities involved, thus; Ibugben, Rumokun and Ogabiri, connecting the Ogabiri Gas Gathering Facility, from where the gas will be transported to NGS Excravos via ELPS pipeline route. The pipeline will interface at the other end with a Pig Launcher/Receivers, as well as other tie-in integration requirements. Pipeline Design Teams will interface with these other teams: Process Engineering, Mechanical Engineering, Piping, Civil/Structural Engineering as well as Electrical Engineering & Instrumentations Engineering, for the success of the project and will during the course of this project, exchange inputs with the afore-mentioned disciplines. The Pipeline teams will also interface with the project management team for effective and timely delivery of the entire project. 2.0 FORWARD This document shall be read along with the following documents: Detailed Pipeline Design Report for Nine Kilometer Pipeline Connecting the Ibugben Flow Station and Ogabiri-1 Manifold: No. PROS/OGBR/RPT/151/003 and other teams’ reports.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 11 of 19 3.0 TECHNICAL DATA FOR THE GAS PIPELINES 3.1 DIMENSIONS FOR PIPELINES Table 3.1 Dimension for Pipelines. PARAMETERS. GAS REQUIREMENTS. IBUGBEN (Ibugben to Ogabiri-1 M/F) RUMOKU N-1 (Rumokun- 1 to Ogabiri-1 M/F) RUMOKU N-2 (Rumokun- 2 to Ogabiri-1 M/F) OGABIRI-1 M/F (Ogabiri-1 M/F passing through {Ogabiri-2 M/F} to CPF) CPF to ELPS. NPS(INCH) 38 38 42 42 28 OUTSIDE DIAMETER(mm) (B31.8) 1050.8 1000.7 1050.8 1067.3 701.0 WALL THICKNESS(mm) 12.7 12.7 12.7 12.7 12.7 CORROSION ALLOWANCE(mm) 1.0 1.0 1.0 1.0 1.0 DESIGN TEMPERATURE MAXIMUM(0 C) 29.4 26.7 29.4 26.7 51.3 AVERAGE LENGHT OF PIPE(M) 9,000.00 12,000.00 8,500.00 3000.00 4,500.00 JOINT FACTOR 0.8 0.8 0.8 0.8 0.8 DIMENSION STANDARD API 5L API 5L API 5L API 5L API 5L MATERIAL DESCRIPTION API 5L X60 API 5L X60 API 5L X60 API 5L X60 API 5L X60
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 12 of 19 3.2 QUANTITIES Table 3.2 Quantities. PLAIN END MASS(km) 298.26 298.26 298.26 330.21 218.7 1 PARAMETERS GAS REQIREMENTS IBUGBEN (Ibugben to Ogabiri-1 M/F) RUMOKUN-1 (Rumokun-1 to Ogabiri-1 M/F) RUMOKUN-2 (Rumokun-2 to Ogabiri-1 M/F) OGABIRI-1 M/F (Ogabiri-1 M/F passing through Ogabiri-2 {M/F} to CPF) CPF TO ELPS. THICKNESS(mm) 12.7 12.7 12.7 12.7 12.7 REQUIRED LENGTH(mm) 9,000,000.00 12,000,000.00 8,500,000.00 3,000,000.00 4,500,000.00 ESCALATION 30%(mm) 2,700,000.00 3,600,000.00 2,550,000.00 900,000.00 1,350,000.00 TOTAL LENGTH(mm) 11,700,000.00 15,600,000.00 11,050000.00 3,900,000.00 5,850,000.00
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 13 of 19 3.3 ANTI-CORROSION. Table 3.3 Anti-corrosion. PARAMETER PIPE EXTERNAL COATING 3-LAYER POLYETHYLENE COATING NOTES: 1. The average length of deliverable pipes shall be 12.0m, though a minimum of 90% of Pipes between 11m and 12.5m may be allowed. 2. There should be end bevelling of an angle of 30o for plain-end pipes, with respect to API 5L specification. 3. The actual quantity is verifiable in the Results of Detailed Design and Engineering below. 4. The length given here represents the preliminary pipe length and bends requirement. K2S Department of Nestoil Nigeria Limited shall confirm the above ground, on-ground and underground pipes.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 14 of 19 3.4 RESULTS OF DETAILED DESIGN AND ENGINEERING. Table 3.4 Results of the Detailed Design and Engineering. S/N PARAMETER DESCRIPTION DATA UNIT 1 PROCESS IBUGB EN(Ibug ben to Ogabiri- 1 M/F) RUMO KUN- 1(Rumo kun-1 to Ogabiri- 1 M/F) RUMOK UN- 2(Rumok un-2 to Ogabiri-1 M/F) OGABIRI - 1(Ogabiri -1 M/F passing through Ogabiri- 2{M/F} to CPF) CPF TO ELPS. 1.1 Gas Inlet Temperature. 29.44 26.67 29.44 26.67 51.27 O C 1.2 Gas Inlet Pressure. 4000 4200 4000 3938 6000 KPa 1.3 Gas Inlet Molar Flow. 4.98 10.08 28.95 30.82 81.16 MMS CFD 1.4 Pipeline Temperature Change. 1.994 0.5568 0.8201 26.00 1.266 O C 1.5 Pipeline Pressure Drop. 4.785 2.778 62.42 3938 65.09 KPa 1.6 Pipeline Heat-loss. 2.172e+ 004 234.3 3.059e+0 04 64.95 1.820e+ 005 KJ/h 1.7 Gas Outlet Temperature. 27.45 28.89 25.85 25.12 50.00 O C 1.8 Gas Outlet Pressure. 3995 4197 3938 3866 5935 KPa 1.9 Gas Outlet Molar Flow. 4.980 0.2024 28.95 75.01 81.16 MMS CFD 1.10 Design life 25 25 25 25 25 Yrs 1.11 Minimum Bend Radius: 1.11.1 Cold Bending Radius 10508 10007 10508 10673 7005 MM
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 15 of 19 1.11.2 Hot Bending Radius 4203.2 4002.8 4203.2 4269.2 2802 MM 1.11.3 With Other Bending Devices 2101.6 2001.4 2101.6 2134.6 1401 MM 1.12 Pipe outside diameter 1050.8 1000.7 1050.8 1067.3 701.0 MM 1.13 Pipe inside diameter 1025.4 975.3 1025.4 1041.9 675.1 MM 1.14 Pipe wall thickness (Mainline seasonal swamp/land) section 12.7 12.7 12.7 12.7 12.7 MM 1.15 Pipe wall thickness (mainline river/road crossing) section NONE NONE NONE NONE NONE MM 1.16 Pipe wall thickness (Major barrels) 12.7 12.7 12.7 12.7 12.7 MM 1.17 Pipe Grade API 5L X60 API 5L X60 API 5L X60 API 5L 60 API 5L 60 NA 1.18 Flow Velocity Range 15.24 – 4.27 15.24 – 4.27 15.24 – 4.27 15.24 – 4.27 15.24 – 4.27 M/S 2 TOPOGRAPHICAL 2.1 Pipeline length 9.00 12.00 8.50 3.00 4.50 KM 2.2 River Crossings None None None None None None 2.3 Rivers Crossing Block Valves (Upstream/Down stream of Rivers Crossings) None None None None None None 2.4 Creek crossing ≥ 20m None None None None None None 2.5 Creek crossing < 20m None None None None None None 2.6 Road crossing ≥ 15m None None None None None None 2.7 Road crossing < 15m None None None None None None 2.8 Burial depth (underwater cover @ creeks) - below mudline. None None None None None M 2.9 Burial Depth (underwater cover @ river crossing) – below mud cut. None None None None None M 2.10 Burial Depth (minimum cover) – 1.5 1.5 1.5 1.5 1.5 M
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 16 of 19 Rural Road Crossing by 2.11 Burial Depth (Minimum cover below undisturbed ground surface) – Major Road Crossing by Thrust Bore 1.0 1.0 1.0 1.0 1.0 M 3. CORROSION CONTROL 3.1 Corrosion Allowance 0.1 0.1 0.1 0.1 0.1 MM/ YR 3.2 External Concrete Coating (Swamp/River Sections) 80 80 80 80 80 MM 3.3 External Anti- Corrosion Coating (3- Layer Polyethylene) 3.2 3.2 3.2 3.2 3.2 MM 3.4 Internal Coating None None None None None -NA- 3.5 Cathodic Protection (By Impressed Current) Yes Yes Yes Yes Yes -NA- 3.6 Corrosion Monitoring (By Intelligent Pig) Yes Yes Yes Yes Yes -NA- 3.7 Electrical Insulation (By Insulating Joints @ above/below ground transitions) Yes Yes Yes Yes Yes -NA- 3.8 Corrosion Inhibition Yes Yes Yes Yes Yes Yes 4 ANCILLIARY EQUIPMENT 4.1 Pig Launcher / Receiver Yes Yes Yes Yes Yes NO 4.2 Mixer Yes Yes Yes Yes Yes NO 4.3 Slug Catcher Yes Yes Yes Yes Yes NO 4.4 Water Splitter Yes Yes Yes Yes Yes NO 4.5 Booster Compressor Yes Yes Yes Yes Yes NO 5 ENVIRONMENTAL
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 17 of 19 5.1 Maximum Wind Speed. 20.5 20.5 20.5 20.5 20.5 M/S 5.2 Average Daily Relative Humidity(Maximum) 97 97 97 97 97 % 5.3 Average Daily Relative Humidity(Minimum) 83 83 83 83 83 % 5.4 Average Daily Relative Humidity(Mean) 72 72 72 72 72 % 5.5 Ambient temperature (Maximum) 29.4 29.4 29.4 29.4 29.4 0 C 5.6 Ambient Temperature (Minimum) 18 18 18 18 18 0 C 5.7 Mean Maximum Hourly Rainfall 100 100 100 100 MM 5.8 Mean Maximum Monthly Rainfall(occurs in September) 355 355 355 355 355 MM 5.9 Average Annual Rainfall 2800 2800 2800 2800 2800 MM 4.0 CONCLUSION This project was carefully executed with enough up-to-date science and technology, which guaranteed strict compliance and attainment to internationally accepted standards of pipeline for transportation of hydrocarbon natural gas, without compromising the ecological sanctity of the concerned area, being guided with the Environmental Impact Assessment(E.I.A), conducted before the take off of this project execution. REFERENCE DOCUMENTS.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 18 of 19 The choice of material and equipment, design, construction, maintenance as well as repair of equipment and facilities covered by the industry guidelines shall comply with the latest edition of the references listed below, unless specifically noted. DOCUMENT HIERARCHY. Should there be any conflicts with respect to any/some of the documents used in this project, reference should be made to the following listed documents arranged in an order of descending priority, thus: 1. Nigerian Law. 2. The contract. 3. Ogabiri FEED approved documents. 4. WAGC Guidelines and Standards. 5. WAGC Design and Engineering Practices. 6. Industry Guidelines and Standards. 7. SPDC’s Kolo Creek – Rumuekpe T/L Replacement EIA Report. 8. The Guardian: www.ngrguardiannews.com>Features>Weekend. 9. Requirements Concerning Pipes and Pressure Vessels. - International Association of Classification Societies. 10.Welded Steel Pipe Design Manual 2007. (Merits, Design Standards, Technical and References) American Iron and Steel Institute. Publication Number D631-0807-e 11.Gas Transmission System Design and Selection. Session 3 Gas Transmission System Design Material Selection EP. 12.Guidelines for the Design of Buried Pipe. American Life Alliance.
THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 19 of 19 July 2001(with added agenda through February 2005) 13.ASME B31.8: Gas Transmission and Distribution Piping Systems. 49 CFR 192.619 (a) (1) (i) 14.Restoration of Right of Way 8, August 2008. < http://www.ngaa.org/cms/33/1339/65/84.aspx> 15.Trenching for New Pipelines. 8, August, 2008. <http:www.ngaa.org/cms/33/1339/65/73.aspx> 16.Stringing, Welding and Coating Pipe Segments. 8,August, 2008. <http://www.ngaa.org/cms/33/1339/65/70.aspx> 17.Assuring the Integrity of Natural Gas Pipeline. Posakony, G.J. et al. Topical Report. GRI-91/0366, Chicago, 1993. 18.The Design and Location of Gas Transmission Pipeline Using Risk Analysis Techniques, Risk and Reliabilty and Limit State Conference, Aberdeen, May,1996. Hopkins,P., Hopkins,H.F., I Corder. 19.Pipelines Onland: Design, Construction and Installation, Steel For Oil and Gas, British Standard Institute, 1992. Anon. , Code of Practice for Pipelines, BS 8010 Part 2.8.

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Pipeline Design Philosophy

  • 1. FIELD ENGINEERING LIMITED PROSERVE OGABIRI GAS GATHERING PROJECT. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GATHERING PROJECT. DCC NUMBER: PROS/OGBR/PIP/RPT/151003 RO2 01/12/2015 IFR A.R.O. A.M. E.C.U. RO1 04/11/2015 IDC A.R.O. A.M. E.C.U. Revision Date: Status: Issued by Checked by Approved by COMPANY Approval
  • 2. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 2 of 19 TABLE OF CONTENTS Page List of Illustrations --------------------------------------------------------------------------------- 3 List of Tables --------------------------------------------------------------------------------------- 3 List of Abbreviations ------------------------------------------------------------------------------ 3 1.0 INTRODUCTION -------------------------------------------------------------------------- 5 1.1 BACKGROUND ----------------------------------------------------------------------- 6 1.2 SCOPE OF WORK --------------------------------------------------------------------- 7 1.3 ACKNOWLEDGEMENT -------------------------------------------------------------- 7 1.4 DESIGN INTERFACE ------------------------------------------------------------------ 8 2.0 FORWARD ------------------------------------------------------------------------------- 10 3.0 TECHNICAL DATA FOR OGABIRI GAS GATHERING PROJECT ---------- 11 3.1 DIMENSION FOR PIPELINES -------------------------------------------------------- 11 3.2 QUANTITIES ---------------------------------------------------------------------------- 12 3.3 ANTICORROSION --------------------------------------------------------------------- 13 3.4 RESULTS OF DETAILED DESIGN AND ENGINEERING --------------------- 14 4.0 CONCLUSION -------------------------------------------------------------------------- 17 REFERENCE DOCUMENT-----------------------------------------------------------------------------17 DOCUMENT HIERARCHY-----------------------------------------------------------------------------17 LIST OF ILLUSTRATION Fig.1.0 Map Outlay of Ogabiri Gas Gathering Project------------------------------------------------ 6 Fig.1.1 Pipesim Simulation Network of the Ogabiri Gas Gathering Project-----------------------8
  • 3. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 3 of 19 Fig.1.2 Hysis Simulation Network of the Ogabiri Gas Gathering Project----------------------9 LIST OF TABLES Table.3.1. Dimension for Pipelines -------------------------------------------------------------------8 Table.3.2.Quantities ------------------------------------------------------------------------------------12 Table.3.3.Anti-corrosion -------------------------------------------------------------------------------13 Table.3.4. Result of Detailed Design and Engineering --------------------------------------------14 LIST OF ABBREVIATIONS/ACRONYMS ASME– American Society of Mechanical Engineering. ASTM– American Society of Testing and Material. 13 Cr - 13-Chrome 16” - Twenty inches o C - Degrees Celsius C/S – Cladded Steel CFC – Chlorofluorocarbon CO - Carbon monoxide CO2 - Carbon dioxide DNA – Deoxyribonucleic Acid. DSAW - Double Submerged Arc Welded ELPS – Escravos Lagos Pipeline System. ERW - Electric Resistance Welded FBE - Fusion Bonded Epoxy. FEED – Front End Engineering Drawing.
  • 4. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 4 of 19 GHG – Greenhouse Gas. GRE - Glass Reinforced Epoxy HDPE - High Density Polyethylene HCFC – Hydrochlorofluocarbon ISO - International Standard Organization M/F - Manifold m/s - meter per second NGC – Nigerian Gas Company. NNPC – Nigerian National Petroleum Corporation. NO2 - Nitrogen dioxide N2O – Di-nitrogen oxide NO- Nitrous oxide NOx – Nitrogen-Oxygen compounds. OPEC – Organization of Petroleum Exporting Countries. PVC - Polyvinyl casing ROW - Right of Way RTP - Reinforced Thermoplastic SCF – Standard Cubic Feet. SPDC - Shell Petroleum Development Company UNFCCC – United Nations Framework Convention on Climate Change. NGS– Nigerian Gas Station. API– American Petroleum Institute. WAGC– West African Gas Company.
  • 5. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 5 of 19 1.0 INTRODUCTION The world as a global village is confronted presently with the threat of extinction as a result of incessant emission of dangerous gases such as carbon dioxide(CO2), NOx (N2O,NO,NO2), Hydrogen Sulfide(H2S), Halocarbons(CFCs and HCFCs), methane, HO radicals, etc. These are responsible for the destruction of the stratospheric ozone layer, that protects the earth from harmful ultraviolet radiation, also known as Green House Gases (GHG), and has subjected the global community to a disastrous ecological imbalance known as Ozone Layer Depletion, which resulted to a catastrophic phenomenon called Global Warming, a precursor of climate change and other pandemic effects, such as the damaging of the DNA of plants and animals, skin cancers, cataracts, etc. These gases are mainly anthropogenic in nature (i.e. caused by human factors) and are mostly due to gas flaring. No wander, the United Nations in the Frame Work Convention on climate change (UNFCCC) known as Kyoto Protocol, declared the above gases as Green House Gases, and they are mainly caused by gas flaring. This resulted in the United Nations resolution to stop gas flaring. A recent data released from the Nigerian National Petroleum Corporation (NNPC), that oil and gas companies in Nigeria burn over $3.5 to $5 billion yearly from over 257 flow stations in the Niger Delta. That specifically, the country flared about 17.15 per cent of the 95,471 metric tons of gas produced in June 2015 alone. Also, the Organization of Petroleum Exporting Countries (OPEC) stated in 2015 Statistical Report, that Nigeria produced 86,325.2 million standard cubic meters in 2014. Also, NNPC disclosed that Nigeria lost up to $868.8 million, about =N=173.76 billion to gas flaring in 2014.Using the Nigeria Gas Company’s(NGC) price of $3 per 1000 SCF of gas at the current exchange rate realities,, the flaring of 289.6 billion SCF of gas translated to a loss of $868.8 million, an equivalent of =N=173.76 billion. Specifically, the oil and gas company produced 2.524 trillion SCF of gas, utilized 2.235 trillion SCF and flared 289.6 billion SCF. Against these backdrops and the likes of it, Nigeria came up with a legislation to stop gas flaring. This gave birth to the present gas monetization process in Nigeria, for which Ogabiri Gas Gathering project is the nucleus.
  • 6. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 6 of 19 1.1 BACKGROUND Fig.1.0 Map Outlay of Ogabiri Gas Gathering Project. Ogabiri Gas Gathering Project is made up of five flow stations/facilities, thus: Ibugben, Ogabiri-1, Ogabiri-2, Rumokun-1 and Rumokun-2, with the central gas gathering facility located at Ogabiri-1, gathering gases from Ibugben, Rumokun-1 and 2 respectively, via gas pipelines, existing along the right of way. Then, en Route Ogabiri-2, where the new Gas Treatment and Compression Facilities are to be installed. Here, the gas will be treated according to the West African Gas Pipelines’ specification before exiting to the NGC Excravos-Lagos Pipeline Systems (ELPS) via a 4.5km new right of way. 1.2 SCOPE OF WORK. The Field Engineering Limited’s Ogabiri Gas Gathering Project contract scope of this work covers the preparation of Pipelines Material Datasheets for the entire flow stations and their corresponding pipeline connections, that made up the Ogabiri Gas Gathering Project. To achieve this, the entire Ogabiri Projects’ various streams’gas and water compositons and conditions were simulated using PIPESIM and HYSIS. The design simulation of the various pipeline systems connecting the entire facilities en route the
  • 7. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 7 of 19 Escravos- Lagos-Pipelines-System (ELPS), was done using PIPESIM and HYSIS simulations, as presented in the tables below. The design conditions, compositions, calculation results, codes, etc, of the high pressure gas line systems of the entire project facilities as shown in the tables below. Pipeline testing is also included to ensure compliance to ISO, ASME and ASTM specifications. 1.3 ACKNOWLEDGEMENT. The contractor(our company), Field Engineering Limited, do hereby express their profound gratitude to Shell Petroleum Development Company(SPDC), Nigeria, and their partner Nestoil Nigeria Limited, for the opportunity to execute on their behalf, the Ogabiri Gas Gathering Project. A contract project of this magnitude could not have been satisfactorily executed without the active support, co-operation and understanding, as well as abiding patience of the SPDC and Nestoil staff that are intimately connected with the project. In this regard, we sincerely thank Dr. Chris Ucheobi, the Head of the K2S Engineering Department, Mr. Lovel Omoanreghan and Mrs. Roseline Uzuegbu, of Nestoil Nigeria Limited, respectively. Also, Adedotun, Taiwo, Oladipo, facilitators of the training consultants to Nestoil. Our company’s appreciation and thanks go to the chiefs, community leaders and youths of the respective communities involved directly or indirectly for the conducive atmosphere enjoyed during the execution of this project. Our special gratitude also goes to the youth leaders of the respective communities involved, for their invaluable maturity, assistance and roles towards a hitch-free execution of this project contract.
  • 8. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 8 of 19 1.4 DESIGN INTERFACE. Fig.1.1 Pipsim Simulation Network of the Ogabiri Gas Gathering Project.
  • 9. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 9 of 19 Fig.1.2 Hysis Simulation Network of the Ogabiri Gas Gathering Project
  • 10. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 10 of 19 The 37 km Ogabiri Gas Gathering Project via existing Right of Way (ROW), en route the bushy/swampy terrain of the communities involved, thus; Ibugben, Rumokun and Ogabiri, connecting the Ogabiri Gas Gathering Facility, from where the gas will be transported to NGS Excravos via ELPS pipeline route. The pipeline will interface at the other end with a Pig Launcher/Receivers, as well as other tie-in integration requirements. Pipeline Design Teams will interface with these other teams: Process Engineering, Mechanical Engineering, Piping, Civil/Structural Engineering as well as Electrical Engineering & Instrumentations Engineering, for the success of the project and will during the course of this project, exchange inputs with the afore-mentioned disciplines. The Pipeline teams will also interface with the project management team for effective and timely delivery of the entire project. 2.0 FORWARD This document shall be read along with the following documents: Detailed Pipeline Design Report for Nine Kilometer Pipeline Connecting the Ibugben Flow Station and Ogabiri-1 Manifold: No. PROS/OGBR/RPT/151/003 and other teams’ reports.
  • 11. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 11 of 19 3.0 TECHNICAL DATA FOR THE GAS PIPELINES 3.1 DIMENSIONS FOR PIPELINES Table 3.1 Dimension for Pipelines. PARAMETERS. GAS REQUIREMENTS. IBUGBEN (Ibugben to Ogabiri-1 M/F) RUMOKU N-1 (Rumokun- 1 to Ogabiri-1 M/F) RUMOKU N-2 (Rumokun- 2 to Ogabiri-1 M/F) OGABIRI-1 M/F (Ogabiri-1 M/F passing through {Ogabiri-2 M/F} to CPF) CPF to ELPS. NPS(INCH) 38 38 42 42 28 OUTSIDE DIAMETER(mm) (B31.8) 1050.8 1000.7 1050.8 1067.3 701.0 WALL THICKNESS(mm) 12.7 12.7 12.7 12.7 12.7 CORROSION ALLOWANCE(mm) 1.0 1.0 1.0 1.0 1.0 DESIGN TEMPERATURE MAXIMUM(0 C) 29.4 26.7 29.4 26.7 51.3 AVERAGE LENGHT OF PIPE(M) 9,000.00 12,000.00 8,500.00 3000.00 4,500.00 JOINT FACTOR 0.8 0.8 0.8 0.8 0.8 DIMENSION STANDARD API 5L API 5L API 5L API 5L API 5L MATERIAL DESCRIPTION API 5L X60 API 5L X60 API 5L X60 API 5L X60 API 5L X60
  • 12. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 12 of 19 3.2 QUANTITIES Table 3.2 Quantities. PLAIN END MASS(km) 298.26 298.26 298.26 330.21 218.7 1 PARAMETERS GAS REQIREMENTS IBUGBEN (Ibugben to Ogabiri-1 M/F) RUMOKUN-1 (Rumokun-1 to Ogabiri-1 M/F) RUMOKUN-2 (Rumokun-2 to Ogabiri-1 M/F) OGABIRI-1 M/F (Ogabiri-1 M/F passing through Ogabiri-2 {M/F} to CPF) CPF TO ELPS. THICKNESS(mm) 12.7 12.7 12.7 12.7 12.7 REQUIRED LENGTH(mm) 9,000,000.00 12,000,000.00 8,500,000.00 3,000,000.00 4,500,000.00 ESCALATION 30%(mm) 2,700,000.00 3,600,000.00 2,550,000.00 900,000.00 1,350,000.00 TOTAL LENGTH(mm) 11,700,000.00 15,600,000.00 11,050000.00 3,900,000.00 5,850,000.00
  • 13. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 13 of 19 3.3 ANTI-CORROSION. Table 3.3 Anti-corrosion. PARAMETER PIPE EXTERNAL COATING 3-LAYER POLYETHYLENE COATING NOTES: 1. The average length of deliverable pipes shall be 12.0m, though a minimum of 90% of Pipes between 11m and 12.5m may be allowed. 2. There should be end bevelling of an angle of 30o for plain-end pipes, with respect to API 5L specification. 3. The actual quantity is verifiable in the Results of Detailed Design and Engineering below. 4. The length given here represents the preliminary pipe length and bends requirement. K2S Department of Nestoil Nigeria Limited shall confirm the above ground, on-ground and underground pipes.
  • 14. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 14 of 19 3.4 RESULTS OF DETAILED DESIGN AND ENGINEERING. Table 3.4 Results of the Detailed Design and Engineering. S/N PARAMETER DESCRIPTION DATA UNIT 1 PROCESS IBUGB EN(Ibug ben to Ogabiri- 1 M/F) RUMO KUN- 1(Rumo kun-1 to Ogabiri- 1 M/F) RUMOK UN- 2(Rumok un-2 to Ogabiri-1 M/F) OGABIRI - 1(Ogabiri -1 M/F passing through Ogabiri- 2{M/F} to CPF) CPF TO ELPS. 1.1 Gas Inlet Temperature. 29.44 26.67 29.44 26.67 51.27 O C 1.2 Gas Inlet Pressure. 4000 4200 4000 3938 6000 KPa 1.3 Gas Inlet Molar Flow. 4.98 10.08 28.95 30.82 81.16 MMS CFD 1.4 Pipeline Temperature Change. 1.994 0.5568 0.8201 26.00 1.266 O C 1.5 Pipeline Pressure Drop. 4.785 2.778 62.42 3938 65.09 KPa 1.6 Pipeline Heat-loss. 2.172e+ 004 234.3 3.059e+0 04 64.95 1.820e+ 005 KJ/h 1.7 Gas Outlet Temperature. 27.45 28.89 25.85 25.12 50.00 O C 1.8 Gas Outlet Pressure. 3995 4197 3938 3866 5935 KPa 1.9 Gas Outlet Molar Flow. 4.980 0.2024 28.95 75.01 81.16 MMS CFD 1.10 Design life 25 25 25 25 25 Yrs 1.11 Minimum Bend Radius: 1.11.1 Cold Bending Radius 10508 10007 10508 10673 7005 MM
  • 15. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 15 of 19 1.11.2 Hot Bending Radius 4203.2 4002.8 4203.2 4269.2 2802 MM 1.11.3 With Other Bending Devices 2101.6 2001.4 2101.6 2134.6 1401 MM 1.12 Pipe outside diameter 1050.8 1000.7 1050.8 1067.3 701.0 MM 1.13 Pipe inside diameter 1025.4 975.3 1025.4 1041.9 675.1 MM 1.14 Pipe wall thickness (Mainline seasonal swamp/land) section 12.7 12.7 12.7 12.7 12.7 MM 1.15 Pipe wall thickness (mainline river/road crossing) section NONE NONE NONE NONE NONE MM 1.16 Pipe wall thickness (Major barrels) 12.7 12.7 12.7 12.7 12.7 MM 1.17 Pipe Grade API 5L X60 API 5L X60 API 5L X60 API 5L 60 API 5L 60 NA 1.18 Flow Velocity Range 15.24 – 4.27 15.24 – 4.27 15.24 – 4.27 15.24 – 4.27 15.24 – 4.27 M/S 2 TOPOGRAPHICAL 2.1 Pipeline length 9.00 12.00 8.50 3.00 4.50 KM 2.2 River Crossings None None None None None None 2.3 Rivers Crossing Block Valves (Upstream/Down stream of Rivers Crossings) None None None None None None 2.4 Creek crossing ≥ 20m None None None None None None 2.5 Creek crossing < 20m None None None None None None 2.6 Road crossing ≥ 15m None None None None None None 2.7 Road crossing < 15m None None None None None None 2.8 Burial depth (underwater cover @ creeks) - below mudline. None None None None None M 2.9 Burial Depth (underwater cover @ river crossing) – below mud cut. None None None None None M 2.10 Burial Depth (minimum cover) – 1.5 1.5 1.5 1.5 1.5 M
  • 16. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 16 of 19 Rural Road Crossing by 2.11 Burial Depth (Minimum cover below undisturbed ground surface) – Major Road Crossing by Thrust Bore 1.0 1.0 1.0 1.0 1.0 M 3. CORROSION CONTROL 3.1 Corrosion Allowance 0.1 0.1 0.1 0.1 0.1 MM/ YR 3.2 External Concrete Coating (Swamp/River Sections) 80 80 80 80 80 MM 3.3 External Anti- Corrosion Coating (3- Layer Polyethylene) 3.2 3.2 3.2 3.2 3.2 MM 3.4 Internal Coating None None None None None -NA- 3.5 Cathodic Protection (By Impressed Current) Yes Yes Yes Yes Yes -NA- 3.6 Corrosion Monitoring (By Intelligent Pig) Yes Yes Yes Yes Yes -NA- 3.7 Electrical Insulation (By Insulating Joints @ above/below ground transitions) Yes Yes Yes Yes Yes -NA- 3.8 Corrosion Inhibition Yes Yes Yes Yes Yes Yes 4 ANCILLIARY EQUIPMENT 4.1 Pig Launcher / Receiver Yes Yes Yes Yes Yes NO 4.2 Mixer Yes Yes Yes Yes Yes NO 4.3 Slug Catcher Yes Yes Yes Yes Yes NO 4.4 Water Splitter Yes Yes Yes Yes Yes NO 4.5 Booster Compressor Yes Yes Yes Yes Yes NO 5 ENVIRONMENTAL
  • 17. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 17 of 19 5.1 Maximum Wind Speed. 20.5 20.5 20.5 20.5 20.5 M/S 5.2 Average Daily Relative Humidity(Maximum) 97 97 97 97 97 % 5.3 Average Daily Relative Humidity(Minimum) 83 83 83 83 83 % 5.4 Average Daily Relative Humidity(Mean) 72 72 72 72 72 % 5.5 Ambient temperature (Maximum) 29.4 29.4 29.4 29.4 29.4 0 C 5.6 Ambient Temperature (Minimum) 18 18 18 18 18 0 C 5.7 Mean Maximum Hourly Rainfall 100 100 100 100 MM 5.8 Mean Maximum Monthly Rainfall(occurs in September) 355 355 355 355 355 MM 5.9 Average Annual Rainfall 2800 2800 2800 2800 2800 MM 4.0 CONCLUSION This project was carefully executed with enough up-to-date science and technology, which guaranteed strict compliance and attainment to internationally accepted standards of pipeline for transportation of hydrocarbon natural gas, without compromising the ecological sanctity of the concerned area, being guided with the Environmental Impact Assessment(E.I.A), conducted before the take off of this project execution. REFERENCE DOCUMENTS.
  • 18. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 18 of 19 The choice of material and equipment, design, construction, maintenance as well as repair of equipment and facilities covered by the industry guidelines shall comply with the latest edition of the references listed below, unless specifically noted. DOCUMENT HIERARCHY. Should there be any conflicts with respect to any/some of the documents used in this project, reference should be made to the following listed documents arranged in an order of descending priority, thus: 1. Nigerian Law. 2. The contract. 3. Ogabiri FEED approved documents. 4. WAGC Guidelines and Standards. 5. WAGC Design and Engineering Practices. 6. Industry Guidelines and Standards. 7. SPDC’s Kolo Creek – Rumuekpe T/L Replacement EIA Report. 8. The Guardian: www.ngrguardiannews.com>Features>Weekend. 9. Requirements Concerning Pipes and Pressure Vessels. - International Association of Classification Societies. 10.Welded Steel Pipe Design Manual 2007. (Merits, Design Standards, Technical and References) American Iron and Steel Institute. Publication Number D631-0807-e 11.Gas Transmission System Design and Selection. Session 3 Gas Transmission System Design Material Selection EP. 12.Guidelines for the Design of Buried Pipe. American Life Alliance.
  • 19. THIRTY-SEVEN KILOMETER PIPELINE MATERIAL DATASHEET OF OGABIRI GAS GATHERING PROJECT. DCC NUMBER PROS/OGBR/PPL/RPT/151 003 Revision : Y01 Status : IDC DISCIPLINE : PIPELINE System/Subsystem : Document type: Philosophy :DESIGN Rev. Date : PROS/OGBR/PPL/RPT/151003. Page 19 of 19 July 2001(with added agenda through February 2005) 13.ASME B31.8: Gas Transmission and Distribution Piping Systems. 49 CFR 192.619 (a) (1) (i) 14.Restoration of Right of Way 8, August 2008. < http://www.ngaa.org/cms/33/1339/65/84.aspx> 15.Trenching for New Pipelines. 8, August, 2008. <http:www.ngaa.org/cms/33/1339/65/73.aspx> 16.Stringing, Welding and Coating Pipe Segments. 8,August, 2008. <http://www.ngaa.org/cms/33/1339/65/70.aspx> 17.Assuring the Integrity of Natural Gas Pipeline. Posakony, G.J. et al. Topical Report. GRI-91/0366, Chicago, 1993. 18.The Design and Location of Gas Transmission Pipeline Using Risk Analysis Techniques, Risk and Reliabilty and Limit State Conference, Aberdeen, May,1996. Hopkins,P., Hopkins,H.F., I Corder. 19.Pipelines Onland: Design, Construction and Installation, Steel For Oil and Gas, British Standard Institute, 1992. Anon. , Code of Practice for Pipelines, BS 8010 Part 2.8.