Kings Quay, Gulf of Mexico

nasnet deployment single lift

Subsea 7 selected NASNet® to provide field wide acoustic positioning throughout Murphy Oil’s Kings Quay field. The array was used for subsea positioning of a range of structures and infield lines using combination of NASNet® VTRx for ROV tracking and MTRx for remote positioning.

An array consisting of 17 NASNet® stations was installed to cover the main development field, with additional NASNet® MS beacons at associated remote locations, and various NASNet® MTrx and VTrx systems for structure and ROV positioning.

NASNet® station deployment completed with single lift deployment, and station calibrations undertaken using an autonomous surface vessel. Both contributing to a significantly reduced time for installation of the array.

NASNet® MS stations were used to provide continuous touch down monitoring of pipes, giving confidence that the pipe did not move. LIDAR metrologies demonstrated excellent correlation with NASNet® measurements, with a difference of 12 mm.

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