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US 8,074,747 B2Granted
Stabilizer assemblies with bearing pad locking structures and tools incorporating same
AssigneeBaker Hughes Incorporated
InventorsSteven R. Radford, Kevin G. Kidder, Khoi Trinh
Life of this patent
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Abstract
Stabilizer assemblies and tools incorporating same may comprise a body having at least one bearing pad receptacle therein, and a bearing pad disposed in the receptacle. The bearing pad includes at least two separated bores extending transversely therethrough, the bores being aligned with transversely extending bores in the body on laterally opposite sides of the bearing pad receptacle. A lock rod extends through each bearing pad bore and into the associated body bores.
Claims23
A stabilizer assembly, comprising:
- a body having at least one longitudinally extending bearing pad receptacle therein;
- a bearing pad disposed in the at least one longitudinally extending bearing pad receptacle, the bearing pad including at least two longitudinally separated pad bores extending transversely therethrough;
- a plurality of body bores on laterally opposite sides of the at least one longitudinally extending bearing pad receptacle, each body bore of the plurality of body bores on a first side of the at least one longitudinally extending bearing pad receptacle aligned with a body bore of the plurality of body bores on a laterally opposite side of the at least one longitudinally extending bearing pad receptacle and with one of the at least two longitudinally separated pad bores;
- a lock rod extending through each of the at least two longitudinally separated pad bores and into each body bore aligned therewith;
- and
- a removable closure received in at least one body bore of the plurality of body bores outboard of an end of the lock rod, an exterior surface of the removable closure having threads engaging threads on a wall of the at least one body bore of the plurality of body bores.
3 more elements
A stabilizer assembly, comprising:
- a body having at least one longitudinally extending bearing pad receptacle therein;
- a bearing pad disposed in the at least one longitudinally extending bearing pad receptacle, the bearing pad including at least two longitudinally separated pad bores extending transversely therethrough;
- a plurality of body bores on laterally opposite sides of the at least one longitudinally extending bearing pad receptacle, each body bore of the plurality of body bores on a first side of the at least one longitudinally extending bearing pad receptacle aligned with a body bore of the plurality of body bores on a laterally opposite side of the at least one longitudinally extending bearing pad receptacle and with one of the at least two longitudinally separated pad bores;
- and
- a lock rod extending through each of the at least two longitudinally separated pad bores and into each body bore aligned therewith;
- wherein the bearing pad includes a plurality of longitudinally spaced threaded apertures therein extending laterally from a radially outer bearing surface of the bearing pad to a floor of the at least one longitudinally extending bearing pad receptacle.
3 more elements
A downhole tool, comprising:
- a longitudinally extending body including a stabilizer portion having a plurality of circumferentially spaced bearing pad receptacles therein;
- a plurality of transversely extending, aligned bores in the longitudinally extending body on laterally opposite sides of each of the plurality of bearing pad receptacles;
- a bearing pad disposed in each of the plurality of bearing pad receptacles, each bearing pad including at least two longitudinally separated pad bores extending transversely therethrough, each pad bore aligned with at least two laterally opposite bores of the plurality of aligned bores in the longitudinally extending body;
- a lock rod extending through each of the at least two longitudinally separated pad bores and into each bore in the longitudinally extending body aligned therewith;
- and
- a removable closure received in at least one aligned bore of the plurality of aligned bores outboard of an end of the lock rod, the removable closure substantially enclosing the end of the lock rod in the at least one aligned bore of the plurality of aligned bores.
3 more elements
Dependencies are inferred from the claim text.