| 摘要 |
An apparatus and method for positioning drill pipe within a mousehole are disclosed. The apparatus includes a lifting member positioned by an elevator disposed at a bottom end of a mousehole wherein the member abuts the pipe from beneath. The elevator can comprise an expandable bladder or a carriage lifted by a cable. By engaging the elevator, the position of the upper end of the pipe can be raised a sufficient degree above the top end of the mousehole to apply a pipe tool around the pipe upper end. In such a manner, the mousehole joint can be removed using a conventional pipe hoist rather than by connection to the kelly joint which might necessitate otherwise a cessation of drilling.
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