Tubing expansion
AssigneeWeatherford/Lamb, Inc.
InventorsGraeme Thomas Marr, Mark Davies
Life of this patent
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Abstract
In an embodiment of the invention, there is disclosed a tubing expansion tool (300) comprising a body (302) adapted for rotation within tubing to be expanded, and three expansion member modules (306) each comprising an expansion member (310) rotatably mounted with respect to the body (302), each expansion member module (306) being releasably coupled to the body (302) as a unit.
Claims82
A tubing expansion tool comprising:
- at least one expansion member module comprising an expansion member rotatably mounted with respect to the tool, the expansion member module being releasably coupled to the body.
A tubing expansion tool comprising:
- a body adapted for rotation within tubing to be expanded;
- and
- at least one expansion member module comprising an expansion member rotatably mounted with respect to the body, the expansion member module being releaseably coupled to the body as a unit.
A tubing expansion tool comprising:
- a body adapted for rotation within tubing to be expanded;
- and
- at least one expansion member module comprising an expansion member rotatably mounted on a spindle, the expansion member module being releaseably coupled to the body as a unit.
A tubing expansion tool comprising:
- a body adapted for rotation within tubing to be expanded;
- and
- at least one rotatable expansion member mounted on a cantilevered spindle extending from the body.
A rotary tubing expansion tool comprising:
- a body adapted for rotation within tubing to be expanded;
- at least one rotatable expansion member mounted on the body;
- a bearing between the expansion member and the body;
- and
- a sealed lubrication system for containing lubricant to facilitate rotation of the expansion member relative to the body.
A tubing expansion tool comprising:
- a body adapted for rotation within tubing to be expanded;
- and
- at least one rotatable expansion member mounted on a spindle pivotably coupled to the body.
A tubing expansion tool comprising:
- a body adapted for rotation within tubing to be expanded;
- and
- at least one expansion member rotatably mounted on a spindle, an axis of the spindle disposed at an angle with respect to a main axis of the tool.
A method for expanding tubing comprising:
- locating a tubing expansion tool within a tubing to be expanded, wherein said tool has at least one expansion member module comprising an expansion member rotatably mounted with respect to the tool, the expansion member module being releasably coupled to the body;
- and
- expanding the tubing.
A method of coupling an expansion member to a body of a tubing expansion tool, the method comprising the steps of:
- providing the expansion member as part of an expansion member module;
- and
- coupling the expansion member module to the body of the tool as a unit such that the expansion member is rotatable with respect to the body.
A method of releasing an expansion member from a body of a tubing expansion tool, the method comprising the steps of:
- releasing an expansion member module coupled as a unit to the body of the tool, whereby the expansion member is provided as part of the module and is rotatable with respect to the body.
Dependencies are inferred from the claim text.