Patent ID: 8371387
Filing Date: 2013-02-12
Classification: E21B

Abstract:
1. A method of manipulating casing, the method comprising: gripping the casing joint by an interior thereof with a spear actuated by relative movement of components of said spear, said spear having a passage extending through a mandrel; positioning said gripped joint for connection to another joint to form a string with said spear; pumping drilling fluid through said mandrel of said spear; actuating an anchor mounted in fluid communication with said passage with said pumping through said mandrel, said anchor disposed on said mandrel in a spaced relation to said spear, to grip the casing joint for torque transmission to said casing joint; internally sealing said string to direct said drilling fluid to a bit connected adjacent a lower end of said string; and rotating said gripped joint from a surface of a well with said anchor.