Pipe joints or couplings – With casing – lining or protector
Patent
1994-09-08
1996-08-27
Nicholson, Eric K.
Pipe joints or couplings
With casing, lining or protector
166243, 166902, F16L 5500, E21B 1710
Patent
active
055493335
ABSTRACT:
A blast joint for protecting production tubing passing through a producing zone including one or more tubing joints of sufficient length to extend through the producing zone, erosion resistant carbide rings mounted on the tubing joints in end-to-end array, ring retainers at each end of the erosion resistant rings to hold the rings on the tubing joints, and one or more elastomer spacer rings engaged with the erosion resistant rings for holding the erosion resistant rings in end-to-end array and being yieldable axially by outward displacement in response to movement of the erosion resistant rings along the tubing joint to permit the rings to move in response to lateral bending of the tubing joints and impact forces on the blast joint during assembly and installation to minimize damage to the erosion resistant rings. The carbide rings are larger than the tubing joints to permit lateral bending of the tubing joints in the rings without stressing the rings.
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Introducing Claycomb Carbide Blast Joint Modular Kits, 1986.
Rickert Precision Industries, Inc. Tungsten-Carbide Blast-Joint Kits, 1986-1987 First Printing.
Rickert Precision Industries, Inc. Modular Blast Joint Assembly and Running procedure with Centralizers, Mid 1991.
Uherek Brain
Uherek Paul J.
Uherek, Sr. Robert J.
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