weldinspecon% inthe%firing%line% - subsea uk · 2017. 2. 6. · inline%weldinspec+on ....
TRANSCRIPT
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Weld inspec+on in the firing line Richard Brown, Engineering Manager
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Introduc+on. • Oil and gas sector s6ll faces challenging 6mes • Supply chain placed under huge strain • Barrel price nearing US$60/bbl in 2017 • Green shoots of recovery star6ng to appear • Projects star6ng to emerge
So what is OMS doing about this?
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Innova+on. Crea6ng technology to meet sector demands
Collabora+on. Partnering with organisa6ons to exploit strengths
Flexiblity. Offer agile, versa6le and tailored services
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Focus on innova+on. How can innova6on play a role in such challenging market condi6ons? By providing the route to discovering previously uniden6fied cost-‐efficiencies that enable projects to become viable in the short term and profitable in the long term. Weld inspec+on, specifically in the firing line is one area where pipeline operators can benefit from new technology.
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Inline weld inspec+on. In spoolbases and on pipe-‐laying vessels Currently, weld inspec6on services are required to determine if a weld meets specifica6on and to iden6fy poten6al defects in order to ensure integrity over the pipelines life6me.
Current methods include:
• Automated Ultrasonic Tes6ng (AUT) • Radiography Tes6ng (RT) • Internal laser and camera inspec6on (OMS)
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OMS inspec+on process.
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Why inspect? Achieving a consistently high quality of welded joint is crucial to subsea pipeline construc6on. The internal laser and camera inspec6on of a pipe joint will help to:
• Ensure specifica6ons are met • Reduce 6me taken for cut-‐outs and weld repairs • Minimise unnecessary down6me • Assure asset lifespan • Prevent pipeline failure
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Weld inspec+on considera+ons. • Inspec6on can occur at a spoolbase, or offshore, in both
the horizontal (S-‐Lay) and ver6cal (J-‐Lay) orienta6ons
• Stringent welding specifica6ons, e.g. for CRA, may specify camera and laser profilometry
• For offshore welding, early inspec6on is essen6al, ie, immediately a_er the root and hot pass
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Where does laser profilometry fit into an inspec+on strategy? For CRA lined pipe projects, 100% inspec6on of the root pass is mandatory:
• The boundary between the CRA liner and the pipe wall interferes with the Ultrasonic technique when inspec6ng zone C
• As a result Radiography is used to assess the root and hot pass (zone C) before the fill passes are added
• Both these techniques have difficulty accurately quan6fying excess root penetra6on or concavity, this is where laser profilometry is the most applicable technology
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Weld features. Detected and quan6fied by laser
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Wire inclusion Lack of penetra+on Burn through
Concavity Burn through Poor purge
Weld features. Detected by camera
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Introducing AugaTM
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Technology innova+on: Auga™ Can be used on a Lay Barge or a Spoolbase firing line
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AugaTM overview. Real 6me verifica6on in the firing line • Abaches to the rear of the Internal Line-‐Up Clamp (ILUC)
and performs a complete 360° scan of the root pass in under 20 seconds
• Adjusts scan head posi6on for different pipe lengths
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Seamless integra+on.
• Auga weld inspec6on takes place in parallel with fill passes, thereby staying off the cri6cal 6me path
• Works in conjunc6on with WeldAnalysis so_ware • Records detailed weld geometry and an accurate 3D topographic map
of the weld • An Excel report is automa6cally generated highligh6ng weld abributes
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Introducing WeldAnalysis soMware
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WeldAnalysis overview. • Suppor6ng Auga is a new version of OMS’
proprietary WeldAnalysis so_ware. • This unique, powerful so_ware processes
data from weld inspec6on tools, highligh6ng specific features. This allows the operator to quickly analyse and pass the weld.
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WeldAnalysis interface.
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The Auga served the purpose very well … exactly the tool required … it will be recommended for future work!
Terry Breaux, Technology Manager, McDermo4
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Clients. We have worked for all the major owners operators, installa+on companies and welding contractors. Acergy / Acute / Allseas / Apache / BP / Bayou / Bredero Shaw / Bugng 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 / McDermob / 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
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Benefits of OMS weld inspec+on.
• Useful during welding trials to op6mize welding parameters • Check root weld and geometry before further passes • Reduc6on in cut-‐outs • Rapid real-‐6me full repor6ng with documenta6on • Fewer defects at the AUT stage • Improve overall produc6vity and efficiency • OMS supplies CSWIP qualified operators
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Thank you for your +me. Please don’t hesitate to ask further ques6ons.
email: [email protected] visit: www.omsmeasure.com
OMS UK Unit 9, M11 Business Link, Parsonage Lane Stansted, Essex CM24 8GF United Kingdom +44 (0) 1279 656038
OMS USA, LLC 701 N Post Oak Rd, Suite 345, Houston Houston TX 77024 United States +1 (832) 519 9421
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