Blast joint

Details Blast joint Blast joint

1987-11-17

1989-12-26

Massie, IV, Jerome W.

Wells

Miscellaneous

166902, 285 45, 138147, E21B 1710, F16L 5500

Patent

active

048891851

ABSTRACT:
A multi-joint blast joint comprising a series of standard length joints of production tubing is disclosed. The blast joint includes a series of cylindrical rings composed of an abrasion resistant material mounted about the tubular tubing joints forming a protective shield about the production tubing. A movable sleeve formed of cylindrical abrasion resistant rings is selectively shiftable to enclose and shield the tubing connection assemblies joining the production tubing forming the blast joint. A slip sleeve is mounted about the blast joint providing a pipe slip engaging surface for suspending the blast joint in the well bore. The production tubing and abrasion resistant rings form a blast joint whose length exceeds the standard length of a single joint of production tubing.

REFERENCES:
patent: 3094852 (1963-06-01), Taylor
patent: 4028796 (1977-06-01), Bergstrom
patent: 4141386 (1979-02-01), Bergstrom
patent: 4211440 (1980-07-01), Bergstrom
patent: 4380347 (1983-03-01), Sable
patent: 4381821 (1983-05-01), Greene, Jr.
patent: 4613165 (1986-09-01), Kuhne
patent: 4635968 (1987-01-01), Kuhne

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