How to improve oil and gas pipe fit up
- 1. Date: 01.01.16 Author: DG & JS End Dimensioning and SmartFit
- 2. Introduction. OMS provide independent, specialist measurement and inspection services to the oil and gas industry Market leader in pipe end measurement and fit-up OMS has more than 40 employees and has been trading for over 10 years Additional services include pipeline inspection and weld inspection (camera and laser), Faro inspection, reeling trials, pipeline crawlers and QA/QC tools Offices in UK, USA, South America and Kazakhstan Worked on all the major projects globally
- 3. Clients. We have worked for all the major owners operators, installation companies and welding contractors. Acergy / Acute / Allseas / Apache / BP / Bayou / Bredero Shaw / Butting Ceona / Chevron / Cladtek / CRC Evans / Doosan / EBK / Edgen Murray Ersai / ExxonMobil / FMC / Globestar / GMC / GRT gaz / Heerema / Hess HHI / Isleburn / Kencana / JP Kenny / Larsen Toubro / Marathon Oil Marubeni Itochu / McDermott / Murphy / Nippon Steel / Oceaneering Petrobras / Petrology / Premier Pipe / PTL / PTSC / Rasgas / Saipem Sapura Acergy / Serimax / Shell / Socotherm / Spitzer / Statoil / Subsea 7 Subsea Structures / Sumitomo / Tata Steel / Technip / Tecnicas Reunidas Total / TWI / V&M / Vision Survey / Wellspun / Williams / Woodside
- 5. Twice winners of The Queens Award for Enterprise: Innovation Winners of Pipeline Industries Guild Subsea Pipeline and Land-based Awards ISO 9001:2008 accreditation Currently working towards DNV GL certification (statement of compliance) Shortlisted for 2015 British Engineering Excellence Award CEO Denise Smiles finalist for First Women Awards in Business Chairman Dr Tim Clarke is a Founder Member of the Professional Institute of Pipeline Engineers Credentials.
- 8. End Dimensioning. End dimensioning is the process of measuring the profile of a pipe end. Capturing these measurements provides an insight to the individual shape and features of a pipe.
- 9. Pipe manufacturing process. Deviation in pipe shape is due to the manufacturing process. UOE pipe Long seam welded Seamless pipe Consistent wall thickness, variation in size, shape and ovality, peaking at the seam Variation in size, shape and ovality, deviation in wall thickness
- 10. Pipe ends are not round. Both of the shapes shown below are considered round, or to have the same out-of-roundness (OoR).
- 11. still has the potential to cause major delays to the project Even when a pipe has low or no ovality been measured at the pipe mill using a laser is in accordance with DNV/API specifications
- 12. Misalignment, or HiLo. Reducing project HiLo is the key to good pipe fit-up.
- 13. Poor fit-up leads to Project delays Cut-outs Increased repairs Time wasted Additional project costs Decreased life of pipeline Missed deadlines and milestones
- 15. The OMS AutoTool. 2,048 internal & external radial measurements Full rotation in less than 12 seconds Repeatable and accurate to 0.05mm A single team can measure over 200 pipe ends in one shift
- 16. Data collection. Exact centre of the pipe is calculated by the software Measurements are taken from a consistent datum 2,048 data points are refined down to 600
- 17. Measurement locations. Pipe mill Coating yard Spool base Pipelay vessel Firing line The most suitable location to minimise pipe handling will be agreed in advance.
- 18. Measurement in stacks and racks. 1. ID only within the pipe stack 2. ID and OD within the pipe stack (with >30mm coating) 3. ID and OD on the pipe rack (with >30mm coating)
- 19. Measuring pipe ends. The long seam weld (LSW) is typically used as the datum point for UOE pipes Bottom dead centre (BDC) for seamless pipes Pipe ends are attributed with the following: - A-B, A-E, L-S, N-S The temperature of the pipes is taken to allow for the coefficient expansion of the steel Client pipe IDs are referenced within OMS software Bevelling has no effect on OMS measurements
- 20. Technical reporting. Pipe end statistics Are your pipes within project specification? What fit-up is achievable without OMS involvement? 28 Project ID Measurement statistics Avg ID (mm) Max ID (mm) Min ID (mm) Int OoR (mm) Avg (all) 679.33 680.60 678.28 2.32 Max (all) 680.12 682.04 679.09 4.05 Min (all) 678.42 679.42 677.17 1.00
- 22. OMS SmartFit Software. Advance indication of expected HiLo Meet project HiLo and improve weld quality Reduction in fit-up time and increased productivity Reduce downtime (repairs, cut-outs) and minimise rejected pipe Selection of 'golden' pipes for stalk tie-ins All of the above is possible with out-of-specification problem pipe
- 23. Technical reporting. Potential fit-up scenarios with SmartFit
- 25. SmartFit options. The following can be set: ID only or ID and OD fit-up type HiLo tolerance can be set Weld separation Weld restrictions Anode selection Sequencing: single, double, triple and quad joints
- 27. Efficient pipe handling. Pipes can be sequenced in a specified order allowing efficient pipe handling Exposed pipe becomes available Sequence is indicated by numbers
- 28. Datum and rotation marking. Pipe marking allows the spacer crew to obtain the best possible fit-up The datum is marked on the fixed end The rotation mark is applied to the free end
- 29. The pipe fit-up. Pipes are brought together and rotation marks are aligned before welding
- 30. To summarise All OMS tools are accurate and repeatable The AutoTool is calibrated and verified to UKAS national standards Measured in excess of 500,000 pipe ends worldwide We have never found a single perfectly round pipe!
- 31. deciding to go with the SmartFit was a good decision for the execution of our project. Jimmy Griffin, Subsea 7 your personnel have performed excellently during the Ichthys campaign. Derek Duddy, PTL (Hereema) OMS did an outstanding job for us on the Sakhalin project. Without doubt, we would not have managed to complete and lay the pipe water injection line without the valuable contribution and expertise of OMS engineers. Robert McLean, McDermott
- 32. OMS UK Unit 9, M11 Business Link, Parsonage Lane Stansted, Essex CM24 8GF United Kingdom +44 (0) 1279 656038 Thank you for your time. Please dont hesitate to ask further questions. OMS USA, LLC 701 N Post Oak Rd, Suite 345, Houston Houston TX 77024 United States +1 (832) 519 9421 Offices in Rio and Kazakhstan email: info@omsmeasure.com visit: www.omsmeasure.com