EWD®5 (Enlarge While Drilling)

The EWD®5 is a fifth generation underreamer tool that is mechanically activated and remains set in the tripping position to drill the cement and shoe. Once clear of the casing simply add weight to activate the 3 cutter blocks to their full gauge enlarging size. The locking mechanism ensures the EWD®5 remains open to drill a full gauge hole.

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Case Histories