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US 12,692,749 B1Granted
Systems and methods for steering a drill bit
AssigneeSchlumberger Technology Corporation
InventorsEdward Richards, Riadh Boualleg
Life of this patent
Estimating the term…
Abstract
A device may include a body having a longitudinal axis. A device may include a deployable steering pad radially movable relative to the body, wherein the deployable steering pad has a retracted state defining a retracted radius from the longitudinal axis and a deployed state defining a deployed radius from the longitudinal axis. A device may include a kicker plate connected to the body longitudinally adjacent to the deployable steering pad, wherein the kicker plate has a kicker radius from the longitudinal axis greater than the retracted radius. A device may include a cutting element positioned on the kicker plate and defining a cutting radius between the retracted radius and the deployed radius.
Claims20
A rotary steering device comprising:
- a body having a longitudinal axis,
- one or more deployable steering pads radially movable relative to the body, wherein each of the one or more deployable steering pads has a retracted state defining a retracted radius from the longitudinal axis and a deployed state defining a deployed radius from the longitudinal axis;
- a first kicker plate connected to the body longitudinally adjacent to the one or more deployable steering pads in a downhole longitudinal position offset downhole from the one or more deployable steering pads, wherein the first kicker plate has a first plurality of cutting elements that are mounted on the first kicker plate at downhole longitudinal positions offset completely downhole from all of the one or more deployable steering pads and arranged in a series or rows at a first plurality of different axial positions with increasing cutting radius in an uphole direction, wherein the first plurality of cutting elements define a first cutting radius between the retracted radius and the deployed radius;
- and
- a second kicker plate connected to the body longitudinally adjacent to the one or more deployable steering pads in an uphole longitudinal position offset uphole from the one or more deployable steering pads, wherein the second kicker plate has a second plurality of cutting elements that are mounted on the second kicker plate at uphole longitudinal positions offset completely uphole from all of the one or more deployable steering pads opposite the first plurality of cutting elements and arranged in a series or rows at a second plurality of different axial positions with increasing cutting radius in the uphole direction, wherein the second plurality of cutting elements define a second cutting radius between the retracted radius and the deployed radius, wherein the first and second kicker plates are separate and axially offset from one another in the respective downhole and uphole longitudinal positions, wherein the rotary steering device excludes cutting elements over an axial distance including all of the one or more deployable steering pads.
2 more elements
A drilling system comprising:
- a drill bit including:
- a bit body having a plurality of blades, and
- a plurality of bit cutting elements defining a bit cutting profile with a bit cutting radius;
- and
- a rotary steering device (RSD) coupled to the drill bit, the RSD including:
- an RSD body having a longitudinal axis,
- a plurality of deployable steering pads radially movable relative to the RSD body, wherein each of the plurality of deployable steering pads has a retracted state defining a retracted radius from the longitudinal axis and a deployed state defining a deployed radius from the longitudinal axis,
- a first kicker plate connected to the RSD body longitudinally adjacent to the plurality of deployable steering pads in a downhole longitudinal position offset downhole from the plurality of deployable steering pads, wherein the first kicker plate has a first plurality of RSD cutting elements that are mounted on the first kicker plate at downhole longitudinal positions offset completely downhole from all of the plurality of deployable steering pads and arranged in a series or rows at a first set of at least three different axial positions with increasing cutting radius in an uphole direction, wherein the first plurality of RSD cutting elements define a first RSD cutting radius between the retracted radius and the deployed radius that is greater than the bit cutting radius, and
- a second kicker plate connected to the RSD body longitudinally adjacent to the plurality of deployable steering pads in an uphole longitudinal position offset uphole from the plurality of deployable steering pads, wherein the second kicker plate has a second plurality of RSD cutting elements that are mounted on the second kicker plate at uphole longitudinal positions offset completely uphole from all of the plurality of deployable steering pads opposite the first plurality of RSD cutting elements and arranged in a series or rows at a second set of at least three different axial positions with increasing cutting radius in the uphole direction, wherein the second plurality of RSD cutting elements define a second RSD cutting radius between the retracted radius and the deployed radius that is greater than the bit cutting radius, wherein the first and second kicker plates are separate and axially offset from one another in the respective downhole and uphole longitudinal positions, wherein the RSD excludes RSD cutting elements over an axial distance including all of the plurality of deployable steering pads.
6 more elements
Dependencies are inferred from the claim text.