Patents by Inventor Carsten Hohl
Carsten Hohl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11946341Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: GrantFiled: August 25, 2022Date of Patent: April 2, 2024Assignee: Baker Hughes Holdings LLCInventors: Carsten Hohl, Carsten Voss
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Patent number: 11821288Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: GrantFiled: January 19, 2022Date of Patent: November 21, 2023Assignee: Baker Hughes Holdings LLCInventors: Carsten Hohl, Carsten Voss
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Publication number: 20230003083Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: ApplicationFiled: August 25, 2022Publication date: January 5, 2023Inventors: Carsten Hohl, Carsten Voss
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Publication number: 20220145706Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: ApplicationFiled: January 19, 2022Publication date: May 12, 2022Inventors: Carsten Hohl, Carsten Voss
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Patent number: 11319753Abstract: A stator for a downhole motor configured for use in a downhole environment. includes an inner tubular member formed from a first metallic material having an outer surface and a helically lobed inner surface, and an outer tubular member comprising a second metallic material that is different from the first metallic material. The inner tubular member is connected to the outer tubular member by compressive force passing from the outer tubular member through the inner tubular member to a rigid mandrel removably disposed within the inner tubular member. The inner tubular member and the outer tubular member form the stator of the downhole motor.Type: GrantFiled: January 6, 2021Date of Patent: May 3, 2022Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
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Patent number: 11261666Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: GrantFiled: July 14, 2017Date of Patent: March 1, 2022Assignee: Baker Hughes Holdings LLCInventors: Carsten Hohl, Carsten Voss
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Publication number: 20210148171Abstract: A stator for a downhole motor configured for use in a downhole environment. includes an inner tubular member formed from a first metallic material having an outer surface and a helically lobed inner surface, and an outer tubular member comprising a second metallic material that is different from the first metallic material. The inner tubular member is connected to the outer tubular member by compressive force passing from the outer tubular member through the inner tubular member to a rigid mandrel removably disposed within the inner tubular member. The inner tubular member and the outer tubular member form the stator of the downhole motor.Type: ApplicationFiled: January 6, 2021Publication date: May 20, 2021Inventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
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Patent number: 10920493Abstract: A method of making a stator includes positioning an inner tubular member having an inner surface within an outer tubular member, installing a rigid mandrel within the inner tubular member, and applying a compressive force to at least one of the inner tubular member and the outer tubular member.Type: GrantFiled: February 21, 2017Date of Patent: February 16, 2021Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
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Patent number: 10385615Abstract: A method of operating a Moineau system to substantially eliminate vibrations, the method includes rotating a first rotational member, and rotating a second rotational member. Each of the first rotational member and the second rotational member includes a plurality of lobes. A first rotational speed of one of the first rotational member and the second rotational member is selected based on 1) a second rotational speed of the other of the first rotational member and the second rotational member and 2) the number of lobes of one of the first rotational member and the second rotational member to maintain eccentric force of one of the first and second rotational members below a predetermined threshold.Type: GrantFiled: November 10, 2016Date of Patent: August 20, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Christian Herbig, Andreas Hohl, Hanno Reckmann, Carsten Hohl, Harald Grimmer
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Publication number: 20180238114Abstract: A method of making a stator includes positioning an inner tubular member having an inner surface within an outer tubular member, installing a rigid mandrel within the inner tubular member, and applying a compressive force to at least one of the inner tubular member and the outer tubular member.Type: ApplicationFiled: February 21, 2017Publication date: August 23, 2018Applicant: Baker Hughes IncorporatedInventors: Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda, Dorothea Marion Fischer, Thorsten Regener
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Publication number: 20180128052Abstract: A method of operating a Moineau system to substantially eliminate vibrations, the method includes rotating a first rotational member, and rotating a second rotational member. Each of the first rotational member and the second rotational member includes a plurality of lobes. A first rotational speed of one of the first rotational member and the second rotational member is selected based on 1) a second rotational speed of the other of the first rotational member and the second rotational member and 2) the number of lobes of one of the first rotational member and the second rotational member to maintain eccentric force of one of the first and second rotational members below a predetermined threshold.Type: ApplicationFiled: November 10, 2016Publication date: May 10, 2018Applicant: Baker Hughes IncorporatedInventors: Christian Herbig, Andreas Hohl, Hanno Reckmann, Carsten Hohl, Harald Grimmer
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Publication number: 20170306700Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: ApplicationFiled: July 14, 2017Publication date: October 26, 2017Inventors: Carsten Hohl, Carsten Voss
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Patent number: 9784269Abstract: A hydraulic tool includes a stator and a rotor rotatably disposed within the stator. At least one of at least an inner portion of the stator and at least an outer portion of the rotor includes an insert comprising a hard material. A method of forming a hydraulic tool includes attaching at least one insert comprising a hard material to a surface of a stator or a surface of a rotor. A downhole motor or pump includes a stator and a rotor. The stator includes at least one insert comprising a hard material disposed over at least a portion of an interior surface thereof and a matrix material at least partially surrounding the at least one insert. The rotor includes at least one insert disposed over at least a portion of an exterior surface thereof and a matrix material at least partially surrounding the at least one insert.Type: GrantFiled: January 6, 2014Date of Patent: October 10, 2017Assignee: Baker Hughes IncorporatedInventors: Joerg Lehr, Dirk Froehlich, Carsten Hohl
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Patent number: 9091264Abstract: An apparatus for use downhole is disclosed that in one embodiment may include a rotor having an outer lobed surface disposed in a stator having an inner lobed surface, wherein the inner lobed-surface or the outer-lobed surface includes a sealing material on a first section thereof and a metallic surface on a second section thereof.Type: GrantFiled: November 29, 2011Date of Patent: July 28, 2015Assignee: Baker Hughes IncorporatedInventors: Carsten Hohl, Harald Grimmer, Volker Krueger
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Publication number: 20150192123Abstract: A hydraulic tool includes a stator and a rotor rotatably disposed within the stator. At least one of at least an inner portion of the stator and at least an outer portion of the rotor includes an insert comprising a hard material. A method of forming a hydraulic tool includes attaching at least one insert comprising a hard material to a surface of a stator or a surface of a rotor. A downhole motor or pump includes a stator and a rotor. The stator includes at least one insert comprising a hard material disposed over at least a portion of an interior surface thereof and a matrix material at least partially surrounding the at least one insert. The rotor includes at least one insert disposed over at least a portion of an exterior surface thereof and a matrix material at least partially surrounding the at least one insert.Type: ApplicationFiled: January 6, 2014Publication date: July 9, 2015Inventors: Joerg Lehr, Dirk Froehlich, Carsten Hohl
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Publication number: 20150122549Abstract: A hydraulic tool includes a rotor rotatably disposed within a stator. At least an inner portion of the stator and/or at least an outer portion of the rotor is configured to be installed in a drill string in either of two inverted orientations along a longitudinal axis of the hydraulic tool. The rotor is configured to rotate within the stator in either of the two orientations. A method includes disposing a rotor within a cavity defined by a stator, passing a fluid through the stator to rotate the rotor, and reversing the stator or the rotor. A drilling system includes a fluid source, a hydraulic tool, a drive shaft operatively associated with the rotor of the hydraulic tool, and a drill bit operatively associated with the drive shaft.Type: ApplicationFiled: November 5, 2013Publication date: May 7, 2015Applicant: Baker Hughes IncorporatedInventors: Carsten Hohl, Carsten Voss
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Patent number: 8985977Abstract: An apparatus for use in a wellbore may include a stator having a bore and a rotor disposed in the bore. Either or both of the rotor and the stator may include a layer that has an asymmetrical material property profile along at least a portion of a circumference of that layer.Type: GrantFiled: September 6, 2012Date of Patent: March 24, 2015Assignee: Baker Hughes IncorporatedInventors: Carsten Hohl, Helmut G. Benning
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Patent number: 8888474Abstract: In an aspect, the disclosure provides an apparatus for use downhole. In one aspect the apparatus includes a rotor with lobes disposed in stator with lobes, wherein at least one of the contours of the rotor lobe and the contour of the stator lobe is asymmetric.Type: GrantFiled: September 8, 2011Date of Patent: November 18, 2014Assignee: Baker Hughes IncorporatedInventors: Carsten Hohl, Harald Grimmer
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Publication number: 20140064997Abstract: An apparatus for use in a wellbore may include a stator having a bore and a rotor disposed in the bore. Either or both of the rotor and the stator may include a layer that has an asymmetrical material property profile along at least a portion of a circumference of that layer.Type: ApplicationFiled: September 6, 2012Publication date: March 6, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Carsten Hohl, Helmut G. Benning
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Publication number: 20130133950Abstract: An apparatus for use downhole is disclosed that in one embodiment may include a rotor having an outer lobed surface disposed in a stator having an inner lobed surface, wherein the inner lobed-surface or the outer-lobed surface includes a sealing material on a first section thereof and a metallic surface on a second section thereof.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Carsten Hohl, Harald Grimmer, Volker Krueger