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Optical Metrology Services (OMS) is to showcase pipe measurement and inspection tools, including the internal weld scanning tool and pipe end dimensioning tools, at the 2010 Rio Oil and Gas Expo.

The company said its pipe measurement products and services are providing benefits for oil and gas companies worldwide.

In Brazil, for example, OMS is working on two projects: the first directly for Petrobras on one of its onshore pipeline projects, and the other working for Subsea on its offshore P55 project.

The internal weld inspection system inspects the internal size and shape of girth welds on pipes that are destined for use in deep-sea subsea oil and gas applications.

The system internally scans welds inside pipes, both visually and dimensionally, enabling inspectors to quickly assess the quality of the root weld.

The technology can be deployed onshore and offshore at different stages of the pipe welding process.

The tool can be used on corrosion-resistant alloy-lined pipe to identify sour (aggressive) ingress points, in both clad butt-weld and clad weld inlay applications.

The tool can also be used to improve weld procedure development efficiency and to check the root weld and geometry before next passes are deposited.

The technology is also used in fatigue-sensitive applications (SCRs) where pipes are subjected to higher dynamic stresses.

The system can be mounted to a purge dam, with an integrated camera for positioning and inspection.

Pipe can be inspected while being spooled onto a pipe-laying vessel or during stalk fabrication/tie-in.

Here, the tool is retrieved using a winch-and-wire system, with weld positioning controlled by a camera and precision motorised system.

Visitors to the OMS stand will also be able to learn about OMS’s complete range of measurement and inspection services for the end dimensioning of fatigue-critical SCR and flowline pipes, which are destined for deep-sea subsea oil and gas applications as well as aiding in the fit-up of land-based pipeline projects.

These services include the management of automatic ultrasonic testing (AUT) calibration block selection and use; software analysis tailored specifically to match customer requirements; and end-to-end matching (without counterboring) or counterbore parameters can be provided (removing minimum WT).

For end dimensioning, OMS utilises its own automatic pipe checker laser measurement tool, which is capable of measuring more than 2,000 IDs and 2,000 ODs as well as being able to accurately measure the WTs for each pipe end in less than 20sec.

The tool is accurate to 0.05mm and enables two OMS staff to measure a minimum of 200 pipe ends in a single shift.

This means less time on site, minimising project delays and costs for the customer.

The internal weld scanning tool and pipe checker (end dimensioning) tool are both available on a rental-only basis, along with a trained operator/inspector provided by OMS.

Optical Metrology Services

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