3D at Depth, Inc., the world’s expert in commercial Subsea LiDAR (SL) laser technology and leading provider of underwater survey support services and 3D data solutions announced today they have recently completed a series of 31 metrologies at eight locations on the Equinor Snorre Expansion Project, for Subsea 7.
From an article in The Daily Sentinel.
The Snorre Expansion Project is the largest project for improved recovery on the Norwegian continental shelf and will increase production from the Snorre field by almost 200 million barrels, extending the field life beyond 2040.
Subsea 7, a global leader in the delivery of offshore projects and services for the energy industry, contracted 3D at Depth’s U.K. office to conduct metrologies as part of the company’s installation campaigns for Pipeline Bundle systems. Each location required metrology measurements for multiple parallel spools which would be installed as single cassettes between the Pipeline Bundles to wellheads and manifolds. The flexibility of Subsea LiDAR (SL) technology and its workflow allowed for a smooth integration into the project, and every SL 3D data set was easily exported into standard formats for measurement, quality control, visualisation, and analysis.
Throughout the project, Subsea LiDAR scans were completed in 8-10 hours providing operational cost savings compared with alternative technologies. In addition, multiple Subsea LiDAR 3D point cloud data sets were combined with terrestrial LiDAR scans using a workflow developed by 3D at Depth to provide robust quality control measures.
The combination of terrestrial and subsea point cloud data allowed the team to derive inferred metrology results for the production manifold hubs which would be installed subsea during later campaigns. 3D at Depth’s SL point clouds were then subsequently used during the spool design process and for cassette spool clash assessments, providing confidence the installations would be successful.
Overall, 3D at Depth’s SL technology generated 3D data sets that contributed to a smooth installation of the cassette spools. The client also received a high-quality digitisation of their subsea assets. This capability of SL technology provides additional value as the oil and gas industry continues to make offshore field digitalisation a priority.
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