Head assembly for pump down equipment

Details Head assembly for pump down equipment Head assembly for pump down equipment

E - Fixed Constructions

21

B

166/17

E21B 33/14 (2006.01) E21B 33/05 (2006.01) E21B 33/16 (2006.01)

Patent

CA 2038798

HEAD ASSEMBLY FOR PUMP DOWN EQUIPMENT ABSTRACT OF THE DISCLOSURE Apparatus is provided for holding and mechanically releasing a cementing plug or the like in a subterranean well. A cylindrical housing concentrically carries a sleeve for receipt of the plug. A lock pin holds the sleeve in position and is rotated to permit the sleeve to shift for release of an extension bridge within the sleeve holding the plug in position. The plug then is pumped out of the apparatus and into the well with the cementitious fluid. Rotation and longitudinal movement of the apparatus can be effected at all times and cementitious fluid can be pumped completely through the apparatus before, during and after the release of the plug. EXPRESS MAIL NO. B76921463

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