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Offshore oil and gas exploration

New SmartFit™ software optimises multiple sections of pipe

Oil & gas pipe measurement specialist Optical Metrology Services (OMS) has released a new version of its award-winning SmartFit™ pipe fit-up optimisation software. In addition to the sequencing of single pipe ends, the new software is now capable of sequencing multiple pre-welded sections of pipe (i.e. doubles, triples and quads), while also providing improved visualisation of pipe fit-up and new, automated reporting features.

How does SmartFit™ work?
Winner of a Queens Award for Innovation in 2014, OMS' SmartFit™ service is a system for managing pipe preparation and fit-up in readiness for welding prior to pipelaying. Used predominantly in the oil and gas industry, SmartFit™ ensures accurate fit-up of pipes prior to welding and laying in trenches, thus preventing environmentally damaging leaks. In parallel, OMS has developed bespoke laser measuring equipment and methodologies with supporting software, for optimising pipe fit-up. The service reduces costs for customers through faster pipelaying and improves quality by eliminating mismatched pipe ends.

Measure, mark and fit-up
Each pipe end is measured, identified and entered into the SmartFit™ software, which then analyses the fit-up of pipes, allowing the operator to mark the best rotational position on each pipe end. In the bead stall, these marks are aligned to immediately achieve the best rotational position so that misalignment is minimised and the project HiLo is easily achieved.

Any problem pipes that won't fit at a specified HiLo are also indicated and are re-sequenced or removed completely so that fit-up problems do not occur in the bead stall. Production delays due to mismatched pipes are avoided.

Experience shows that with typical flowline HiLo requirements - and using typical seamless line pipe that has not been counterbored - fit-up issues can occur regularly. For a HiLo of around 1.0 to 1.2mm, problems are likely to occur every 10 to 20 pipes for flowline/seamless pipe. However, for fatigue-sensitive pipes (i.e. in buckle zones), OMS can achieve a HiLo of 0.05. Using SmartFit™ enables the required HiLo's to be achieved in the bead stall without trial and error. It also identifies up front problem pipe so that this can be removed from the pipe welding sequence, therefore avoiding any problems in the bead stall.

Industry Trends
The latest version of the SmartFit™ software was developed by OMS in response to the changing needs of the oil and gas industry. Rather than weld single pipe ends, some of the latest pipelaying vessels are now designed and equipped to carry and/or weld multiple sections of pipe - in doubles, triples or quads. Typically, these vessels carry pipe ends that have either been pre-welded onshore into multiple sections, or the vessels have facilities to weld the pipe ends onboard into multiple sections prior to the pipeline reeling and laying processes.

As David Briscoe, senior software engineer at OMS comments: "The SmartFit™ software is now able to simulate, sequence and optimise batches of double, triple or quad pipe ends to suit individual customer requirements. For the pipe contractor, this enables pipe ends to be part-welded into multiple sections onshore, which in turn means less time is spent welding individual pipe ends onboard the pipelaying vessel. This can significantly reduce vessel hiring costs and project risk."

SmartFit™ software is now more intuitive and easier to use, providing 2D/3D visualisation of pipe ends, which not only reduces operator error, but also aids the end customer or pipe contractor's own understanding of the benefits of using pipe fit up optimisation software in order to reduce weld cut-outs and delays to the pipe welding and laying processes.

Nicolas Pellerej, software engineer at OMS and developer of the new SmartFit™ software states: "By utilising the 3D visualisation software feature within NI LabVIEW
¹, SmartFit users can now visualise the actual sequence of pipe ends on-screen and then manipulate these, either as single or multiple pipe sections, in order to obtain the best possible fit up. By using different on-screen images, graphs, symbols and colours, we've made it easier for users to see the immediate effects of making modifications to a batch of pipes. For example, users can see instantly how changing the sequence or rotation of a pipe will affect the overall project HiLo, the separation or the long seam weld restriction for the project."

¹David Briscoe and Nicolas Pellerej are Certified LabVIEW Architects (CLA). There are currently 52 CLAs in the UK and approximately 730 CLAs worldwide.

Automated reports
SmartFit™ software also provides improved reporting features in various formats to suit the operator, analyst or pipe contractor. Results and automated statistical reports can be generated and exported directly into different formats, including MS Word, MS Excel, .CSV file, image/graphical reports, as well as more detailed technical reports that include every pipe joint/HiLo value in a pipeline.

Global impact of SmartFit™
The SmartFit™ system is accurate, traceable to National Standards, light, fast to operate and highly portable. The system has been applied aboard a wide variety of pipelaying vessels and spool bases around the world.

Prior to OMS introducing SmartFit™ to the oil and gas industry, pipe fit-up problems occurred at a mean rate of 1 in every 15 pipe ends. Using SmartFit™, such problems are rare or non-existent. OMS estimates that its customers are saving approximately £9 million per year.

Optical Metrology Services in profile
Optical Metrology Services Limited (OMS) is a market leader in the provision of pipe measuring products and services. The company specialises in measuring equipment and consulting services for use within the pipe manufacturing and pipeline construction sectors, both onshore and offshore. A key focus for OMS is in the dimensional measurement of oil and gas pipes or other structures such as military gun barrels, processing industry tubes or manufactured cylindrical objects, where dimensions are critical.

OMS prides itself on finding out what clients require and delivering it. OMS was recently recognised by being awarded The Queen's Award for Enterprise in the Innovation Category, the company's second award in 2007 (the first award being the Pipeline Industries Guild Award for Land Based Technology).

The OMS Pipe Checker™ range of tools provides dimensional checks on all aspects of manufactured pipe. These tools are used throughout the world for onshore and offshore projects and in pipe mills.

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Refer to page 626

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