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US 8,490,448 B2Granted
Reaming apparatus
AssigneeWeatherford U.K. Limited
InventorJames Edward Fogg
Life of this patent
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Abstract
Tubing reaming apparatus comprises a housing adapted to be mounted to tubing to be reamed. The housing provides mounting for a reamer shaft adapted to mount a cutter within the tubing. The housing also provides mounting for a drive arrangement. A gear arrangement is provided between the drive arrangement and the reamer shaft. The housing may comprise a clamping arrangement adapted to reduce residual bend and ovality of the tubing.
Claims26
An apparatus for reaming tubing, comprising:
- a housing providing mounting for a cutter;
- and
- a clamping device adapted to locate the housing relative to tubing to be reamed, wherein the clamping device includes at least a first part and a second part that when connected to each other about the tubing are configured to reduce at least one of residual bend and ovality of the tubing, wherein the first and second parts define a first cylindrical inner surface for supporting the tubing, wherein the first and second parts define a second cylindrical inner surface that is co-axial with and disposed adjacent to the first cylindrical inner surface, and wherein a portion of the housing is disposed within the second cylindrical inner surface to support the housing.
An apparatus for reaming tubing using a reaming assembly, comprising:
- a clamping device operable to secure the reaming assembly to tubing to be reamed and operable to reduce at least one of residual bend and ovality of the tubing, wherein the clamping device comprises at least a first part and a second part that when directly affixed to each other define a first cylindrical inner surface corresponding to a desired tubing form and define a second cylindrical inner surface that is co-axial with and disposed adjacent to the first cylindrical surface, wherein the second cylindrical inner surface is configured to receive an end portion of the reaming assembly to support the reaming assembly, wherein each part includes at least one handle for handling the clamping device.
A method of reaming tubing, comprising:
- supporting an end of a tubing to be reamed at a work location;
- moving a clamping device to the work location and placing the clamping device over the end of the tubing, wherein the clamping device includes at least first and second parts that when connected together define a first cylindrical inner surface and define a second cylindrical inner surface that is co-axial with and disposed adjacent to the first cylindrical inner surface;
- securing the first cylindrical inner surface of the clamping device to the end of the tubing and then securing a reaming apparatus to the tubing using the second cylindrical inner surface of the clamping device;
- actuating the clamping device to reduce at least one of residual bend and ovality of the tubing;
- and
- reaming the tubing.
3 more elements
Dependencies are inferred from the claim text.