Rotary steerable system with a steering device around a drive coupled to a disintegrating device for forming deviated wellbores
AssigneeBaker Hughes, A Ge Company, LLC
InventorVolker Peters
Life of this patent
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Abstract
A rotary drilling apparatus for drilling deviated wellbores Is disclosed that in one embodiment includes a drilling assembly that further includes a drilling motor coupled to a drive member to rotate a disintegrating device, a housing outside the drive member having a lower section and an upper section, and a steering device disposed outside the drive member that tilts the lower section relative to the upper section and maintains the tilt geostationary or substantially geostationary when the drilling assembly is rotating to drill a deviated section of the wellbore.
Claims24
A rotary steerable drilling assembly configured to drill a deviated section of a wellbore, the rotary steerable drilling assembly comprising:
- a drilling motor coupled to a drive member, the drilling motor rotating due to a flow of a drilling fluid;
- a housing outside the drive member having a first section and a second section;
- a steering device that tilts the first section relative to the second section about a joint and maintains the tilt substantially geostationary when the drilling assembly is rotating through curvatures of the wellbore;
- wherein the drive member runs through the joint to couple the drilling motor to a disintegrating device having fluid passages, and wherein the drilling motor rotates the disintegrating device via the drive member;
- and
- a channel between the joint and the drive member, wherein the drilling fluid flows through the channel between the joint and the drive member and exits through the fluid passages in the disintegrating device.
A method of drilling a deviated section of a wellbore, comprising:
- conveying a rotary steerable drilling assembly into the wellbore that includes:
- a drilling motor coupled to a drive member configured to rotate a disintegrating device, the drilling motor rotating due to a flow of a drilling fluid and the disintegrating device having fluid passages, and wherein the drilling motor rotates the disintegrating device via the drive member,
- a housing outside the drive member,
- a steering device that tilts a first section of the housing relative to a second section of the housing about a joint, wherein the drive member runs through the joint to couple the drilling motor to the disintegrating device, and
- a channel between the joint and the drive member, wherein the drilling fluid flows through the channel between the joint and the drive member and exits through the fluid passages in the disintegrating device;
- rotating the drilling assembly and the drilling motor to rotate the disintegrating device to drill the wellbore;
- and
- activating the steering device while the drilling assembly is rotating to tilt the first section relative to the second section about the joint to drill the deviated section.
Dependencies are inferred from the claim text.