Shrink-fit sleeve apparatus for drill strings

Details Shrink-fit sleeve apparatus for drill strings Shrink-fit sleeve apparatus for drill strings

1974-12-16

1976-02-17

Wood, Jr., M. Henson

Cutlery

166241, F16C 126

Patent

active

039388530

ABSTRACT:
Sleeve apparatus for mounting on a cylindrical periphery of a drill string, or other running string, including an inner sleeve having cylindrical interior and a conical exterior disposable at any selected location along a drill string member, an outer sleeve being mounted on the inner sleeve and having an inner conical surface companion to the outer conical surface of the inner sleeve, the outer sleeve being shrink-fitted on the inner sleeve, and the latter on the cylindrical periphery of the drill string member by fluid pressure actuated hydraulic means, permitting a safe, strong interconnection between the outer sleeve, inner sleeve and the drill string member, the inner and outer sleeves being readily removable, when necessary, for relocation on the drill string or for replacement by another inner and outer sleeve combination similarly shrink-fitted onto the drill string. The outer sleeve, positioned on the drill string, may be a stabilizer sleeve, a wear protection sleeve, a reamer, and the like.

REFERENCES:
patent: 2263638 (1941-11-01), Minor
patent: 2303689 (1942-12-01), Graham
patent: 3051532 (1962-08-01), Collett
patent: 3747700 (1973-07-01), Rilling

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