Bit-run nominal seat protector and method of operating same

Wells – Processes – Placing or shifting well part

Reexamination Certificate

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Details

C166S075140, C166S085300

Reexamination Certificate

active

08074724

ABSTRACT:
A drilling system employs a set of bushings that protect seats used for casing hangers. The system includes one or more seat protectors that attach to a running tool. The running tool is lowered down the wellbore with the seat protectors attached and deposits a bushing at each surface to be protected. The running tool may retrieve the bushings as the running tool is withdrawn from the wellbore.

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