Wells – Packers or plugs – With controllable passage between central chamber and space...
Patent
1988-04-12
1989-07-18
Novosad, Stephen J.
Wells
Packers or plugs
With controllable passage between central chamber and space...
166124, 166126, 166139, 166285, 166387, E21B 2306, E21B 33129, E21B 3314
Patent
active
048484598
ABSTRACT:
A packer setting tool, a packer assembly and an attached liner assembly are lowered into a well bore at a desired depth to fix the liner therein. Cement is pumped down a tubing string, through the packer, the lining, check valves and forced upwardly in the annulus of the well bore. The pumped cement is followed by a non-setting liquid to clear the internal tubular structure. The packer assembly is then set in the wet cement of the annulus to provide an additional fluid seal in the well bore. The packer setting tool is released and the cement is allowed to harden and fix the linear and the packer assembly within the well bore.
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Blackwell Henry W.
Lacy Rodger D.
Talley Clifford L.
Dresser Industries Inc.
Fiorito Edward G.
Novosad Stephen J.
Peoples William R.
Van Winkle Roy L.
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