In-Situ Retrofit Sets Milestone In Deepwater MPD Evolution

In an industry first, a deepwater dynamically positioned (DP) semisubmersible drilling rig was retrofitted expeditiously for full managed pressure drilling (MPD) functionality, while performing operations at sea in the Asia-Pacific region.

The in-situ installation of a semi-permanent MPD package on a deepwater rig, which was designed originally, and strictly, for conventional drilling methods, was unprecedented. Performing a major retrofit at sea, with limited shore-based support resources, and in parallel with ongoing rig operations, presents obvious safety and procedural difficulties. Extensive planning, and a detailed assessment of all associated operational risks, were conducted in advance of the integration project, to minimize, if not eliminate, all potential hazards associated with simultaneous operations

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