Subsea LiDAR metrology system deployed on Equinor project

April 23, 2021
Subsea 7 contracted 3D at Depth to conduct metrologies for pipeline bundle installations.

Offshore staff

LONGMONT, Colo. – 3D at Depth, Inc., says that it recently completed a series of 31 metrologies at eight locations on the Equinor Snorre Expansion Project, for Subsea 7.

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 contracted 3D at Depth’s UK 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.

3D at Depth says that 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, visualization, and analysis.

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.

04/22/2021