Ashtead and Newton Labs deliver underwater inspection for Subsea 7

19 December 2017

Subsea equipment specialist, Ashtead Technology has successfully delivered an advanced subsea laser scanning project for Subsea 7 on Chevron's Captain field located in the UK North Sea. The project saw Ashtead carry out a well inspection utilising Newton Lab's M210UW and M3200UW subsea laser scanning systems.

Ashtead designed and engineered bespoke deployment tools that enabled the scanning systems to accurately capture subsea scans at water depths of 110m using divers. The scope of work included an internal casing inspection and a horizontal mapping survey to capture more than 100 short and long range scans. This allowed Ashtead to successfully generate a 3D model of the structure with sub-millimetre accuracy. 

The subsea laser scanning systems were fully tested at Ashtead's purpose-built facility in Westhill, Aberdeenshire before undergoing a simulated dry-run for the client ahead of deployment. The project was mobilised within two weeks of the contact being awarded and was completed on time and within budget.

The contract marked Newton Labs' first subsea project using its recently launched M3200UW laser scanner. The system can operate with either a scanning or a fixed laser line to measure underwater objects to 0.02 millimetre accuracy. Designed for ROV or diver deployment, the tool is fitted with a high resolution camera, allowing data to be streamed live, in real-time for maximum efficiency.

Ashtead Technology Ltd
Ashtead House, Discovery Drive
Arnhall Business Park
Westhill
Aberdeenshire AB32 6FG
UK
T: +44 1224 771888
F: +44 1224 770129

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