Low profile stop collar
AssigneeWeatherford Technology Holdings, LLC
InventorsSamuel Rodriguez, Forrest Parker, Maxime R. Rodrigue, Philip E. Dufrene, Vimalkumar Engineer, Sarah Adams
Life of this patent
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Abstract
A stop collar for a tubular includes an inner ring configured to engage the tubular and having a waveform profile. The waveform profile includes a peak and a base. The stop collar includes an outer ring configured to be disposed around the inner ring and configured to compress the inner ring. A method for assembling a stop collar for a centralizer on a tubular includes positioning an inner ring around the tubular, the inner ring including a profile and compressing the profile against the tubular by disposing an outer ring around the inner ring.
Claims22
A stop collar for a tubular, comprising:
- an inner ring configured to engage the tubular and having an inner surface, the inner surface including at least one peak and one base;
- and
- an outer ring configured to be disposed around the inner ring and configured to compress the inner ring, wherein the at least one peak is flattened and elongated upon compression.
A stop collar for a centralizer, comprising:
- an inner ring configured to engage a tubular, the inner ring including:
- an inner surface profile having at least one peak and one base;
- and
- a shoulder at an end of an outer surface of the inner ring;
- and
- an outer ring configured to compress the inner surface profile, wherein the inner ring is elongated when compressed.
A method of assembling a stop collar for a centralizer on a tubular, comprising:
- positioning an inner ring around the tubular, the inner ring including an inner surface profile having at least one peak and one base;
- and
- compressing the profile against the tubular by disposing an outer ring around the inner ring, thereby flattening the at least one peak and one base and elongating the inner ring.
Dependencies are inferred from the claim text.