Hull Measurement

Date: October 12, 2012

In Attendance:

  • Ray Smith, Ensco
  • Sim Whitehill, VideoRay
  • Tom Glebas, VideoRay

Preparation

The VideoRay ROV pre-dive checklist was completed and the UT gauge was calibrated and prepared for operation according to manufacturer's specifications. All systems passed the checks.

Execution

The purpose of this project was to take two (2) UT measurements on each hull plate in Fore Peak Tank 101.

The project started on the port side of Fore Peak Tank 101.

The results of these measurements are shown in the following sketch created on-site. All thickness measurements are in mm.

Total time to inspect the hull plates in the upper port compartment of Fore Peak Tank 101 was approximately 60 minutes.

See Video: 2012-10-12_T13-03-21-160Z.wmv

The ROV was piloted to the starboard side of Fore Peak Tank 101 for measurements of the hull plates there.

The results of these measurements are shown in the following sketch created on-site. All thickness measurements are in mm.

Total time to inspect the hull plates in the upper starboard compartment of Fore Peak Tank 101 was approximately 30 minutes.

See Video: 2012-10-12_T15-03-50-409Z.wmv

Preparing to take a measurement of the hull just forward of the Bulkhead at Frame 228.

Close up of an interior structure that had been opened before the tank was flooded. The VideoRay can be used to perform post filling inspections that would otherwise be impossible without draining the tank.

Gaps

None

Version: 1.00.00