Downhole Trimming Tool
AssigneeNational Oilwell Varco, L.P.
InventorsLydia Mata Mireles, Cesar J. Gonzalez, Jr.
Life of this patent
Estimating the term…
Abstract
A trimming tool suitable for trimming material from within a central opening of an annular seal member includes a tubular member extending along a tool axis, a cutter coupled to move with the tubular member, and a first and a second debris catcher mounted on the tubular member. The cutter includes a first cutting edge oriented to cut when the tubular member is moved in a first direction along the tool axis, and a second cutting edge oriented to cut when the tubular member is moved in a second direction along the tool axis. Each debris catcher includes a receptacle that is open toward the cutter and includes an outer surface with a tapered segment. The cutter is mounted to the tubular member at a position between the first and second debris catchers.
Claims21
A trimming tool suitable for trimming material from within a central opening of an annular seal member, the tool comprising:
- a tubular member extending along a tool axis;
- a cutter coupled to move with the tubular member and including:
- a first cutting edge oriented to cut when the tubular member is moved in a first direction along the tool axis, and
- a second cutting edge oriented to cut when the tubular member is moved in a second direction along the tool axis that is different from the first direction;
- and
- a first debris catcher and a second debris catcher mounted on the tubular member, each debris catcher comprising a receptacle that is open toward the cutter, and comprising an outer surface that includes a tapered segment;
- wherein the cutter is mounted to the tubular member at a position between the first and second debris catchers.
A trimming tool suitable for trimming elastomeric material from within a central opening of an annular seal member, the tool comprising:
- an elongate pipe string extending along a tool axis and having first and second spaced-apart ends;
- a cutter positioned on the pipe string at a location that is between the first end and the second end, the cuter comprising a cylindrical outer surface and at least one cutting edge that extend about the tool axis;
- and
- a debris catcher mounted on the pipe string at a location between the cutter and one of the first and second ends, the debris catcher comprising an inner surface forming a receptacle that is open in the direction facing the cutter, and comprising an outer surface having an outer profile that includes at least one tapered segment.
A trimming tool suitable for trimming material from within an annular seal member while the annular seal member is installed within a piece of equipment that is mounted to a wellhead, the tool comprising:
- a pipe string extending along a longitudinal axis;
- a cutter mounted on the pipe string and having a first cutting edge facing generally in a first axial direction along the longitudinal axis;
- and
- a first debris catcher mounted on the pipe string at a location spaced-apart from the cutter and extending circumferentially around the pipe string, the debris catcher comprising a receptacle that faces the first cutting edge.
Dependencies are inferred from the claim text.