Slimline stop collar with solid cam ring
AssigneeDownhole Products Limited
InventorDarko Arsoski
Life of this patent
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Abstract
A stop collar for mounting to a downhole tubular includes: a cylindrical housing having a threaded inner surface and a tapered inner surface; a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces; a solid cam ring having a tapered inner surface; and a cylindrical bolt having a threaded outer surface. A natural outer diameter of each ring is greater than a minor diameter of the threaded surfaces. Screwing the threaded surfaces of the housing and the bolt is operable to drive the tapered surfaces together, thereby compressing the slip ring such that the teeth engage a periphery of the tubular.
Claims15
A stop collar for mounting to a downhole tubular, comprising:
- a cylindrical housing having a threaded inner surface and a tapered inner surface;
- a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces;
- a solid cam ring having a tapered inner surface;
- and
- a cylindrical bolt having a threaded outer surface,
- wherein:
- a natural outer diameter of each ring is greater than a minor diameter of the threaded surfaces, and
- screwing the threaded surfaces of the housing and the bolt is operable to drive the tapered surfaces together, thereby compressing the slip ring such that the teeth engage a periphery of the downhole tubular.
Dependencies are inferred from the claim text.