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Figure F19. ACORK schematic and installation sequence. Consecutive stages in the installation of the ACORK system includes (A) installation of reentry cone and 16 inch diameter conductor casing and drilling 14¾ inch hole to target depth plus a ~15 m rat hole, (B) installation of ACORK system with underreamer and mud motor, and (C) installation of bridge plug and back-up cement above the casing shoe. Final depths of primary components are given in C. masf = meters above seafloor. CADA = cam-actuated drill-ahead, ROV = remotely operated vehicle.

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