Patents by Inventor Geoffrey Charles Downton
Geoffrey Charles Downton 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).
-
Patent number: 11879334Abstract: A rotary steerable tool may include a tool body with an upper end and a lower end. Additionally, the tool body may include at least one steering assembly extending from the tool body and includes at least one steering actuator configured to extend beyond other portions of the steering assembly. Furthermore, at least one cutter may be disposed on the rotary steerable tool a distance from the at least one steering actuator.Type: GrantFiled: October 18, 2021Date of Patent: January 23, 2024Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Edward Richards, Riadh Boualleg, Michael George Azar, Geoffrey Charles Downton, Denis Li, Richard D. Hill
-
Patent number: 11788359Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: GrantFiled: September 13, 2021Date of Patent: October 17, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chesnutt
-
Publication number: 20230131473Abstract: A method for drilling a subterranean wellbore includes rotating a bottom hole assembly (BHA) in the wellbore to drill. The BHA includes a rotary steerable tool or a steerable drill bit having at least one external pad configured to extend radially outward into contact with a wall of the wellbore and thereby steer the drilling. A rotation rate of the BHA is measured and a drilling parameter waveform is received. The rotation rate and the waveform are processed to select discrete times for extending the at least one external pad while drilling.Type: ApplicationFiled: October 20, 2022Publication date: April 27, 2023Inventors: Alexander Trushin, Ling Li, Geoffrey Charles Downton
-
Publication number: 20220364559Abstract: A mud motor includes a rotor and a stator. Drilling fluid received by cavities of the mud motor drives the rotor to rotate within the stator. The rotor includes one or more rotor lobes extending helically and defining a rotor pitch. The stator includes two or more stator lobes extending helically and defining a stator pitch. The rotor and the stator together define a tapered profile of the mud motor that varies proceeding from a top end of the mud motor to a bottom end of the mud motor. At least one of the rotor pitch or the stator pitch vary as proceeding from the top end of the mud motor to the bottom end of the mud motor.Type: ApplicationFiled: May 14, 2020Publication date: November 17, 2022Inventors: Anton Kolyshkin, Maxim Pushkarev, Samba Ba, Li Guo, Robert Little, Geoffrey Charles Downton
-
Publication number: 20220298910Abstract: A method for evaluating a subterranean wellbore includes rotating a drill string in the subterranean wellbore. The drill string includes a rotary steerable tool, a steerable drill bit, or other rotary steering tool with at least one pad configured to extend radially outward from a tool body and engage a wall of the wellbore. Radial displacements of the pad are measured while rotating and processed to compute a curvature of the wellbore.Type: ApplicationFiled: March 17, 2022Publication date: September 22, 2022Inventors: Stuart Alan Kolbe, Denis Li, Geoffrey Charles Downton
-
Publication number: 20220170359Abstract: A method can include acquiring drilling performance data for a downhole tool; modeling drilling performance of the downhole tool to generate results; training a machine learning model using the drilling performance data and the results to generate a trained machine learning model; and predicting behavior of the downhole tool using the trained machine learning model.Type: ApplicationFiled: March 20, 2020Publication date: June 2, 2022Inventors: Riadh Boualleg, Geoffrey Charles Downton, Jean Marie Degrange, Steven G. Villareal, Maja Ignova, Ling Li, Katharine L. Mantle, Tao Yu, Jia Yao, Kai Feng Zhao, Paul Bolchover
-
Patent number: 11286718Abstract: A rotary steerable tool may include a tool body with an upper end and a lower end. Additionally, the tool body may include at least one steering assembly extending from the tool body and includes at least one steering actuator configured to extend beyond other portions of the steering assembly. Furthermore, at least one cutter may be disposed on the rotary steerable tool a distance from the at least one steering actuator.Type: GrantFiled: January 31, 2019Date of Patent: March 29, 2022Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Michael George Azar, Edward Richards, Riadh Boualleg, Geoffrey Charles Downton, Denis Li, Richard D. Hill
-
Publication number: 20220034167Abstract: A rotary steerable tool may include a tool body with an upper end and a lower end. Additionally, the tool body may include at least one steering assembly extending from the tool body and includes at least one steering actuator configured to extend beyond other portions of the steering assembly. Furthermore, at least one cutter may be disposed on the rotary steerable tool a distance from the at least one steering actuator.Type: ApplicationFiled: October 18, 2021Publication date: February 3, 2022Inventors: Edward Richards, Riadh Boualleg, Michael George Azar, Geoffrey Charles Downton, Denis Li, Richard D. Hill
-
Publication number: 20210404260Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: ApplicationFiled: September 13, 2021Publication date: December 30, 2021Inventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chesnutt
-
Patent number: 11208847Abstract: A downhole tool includes at least a pilot section, a first expansion section, and a second expansion section. The pilot section has a plurality of cutting elements to cut a pilot hole. Each of the expansion sections has a plurality of cutting elements to successively expand the pilot hole to achieve a final wellbore radius. The pilot section, first expansion section, and second expansion section each have one or more stabilizer pads on respective gages to stabilize the downhole tool during wellbore creation.Type: GrantFiled: April 24, 2018Date of Patent: December 28, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Michael George Azar, Geoffrey Charles Downton, Edward George Parkin
-
Patent number: 11125020Abstract: A downhole drilling apparatus may comprise a rotatable body with various cutting elements connected thereto, some radially protruding therefrom, some radially extendable therefrom, and some revolvable relative thereto about a common axis. In operation, when the body is rotated, the radially protruding cutting elements may bore a generally cylindrical borehole. The radially extendable cutting elements may be extended during specific portions of the body's rotation to degrade certain areas of an inner wall of the borehole transforming it into a non-cylindrical borehole. At certain times, the revolvable cutting elements may be allowed to slide against the non-cylindrical inner wall while freely revolving to minimize disturbance to the borehole shape. At other times, revolution of these revolvable cutting elements may be restrained to ream the borehole back to a cylindrical shape.Type: GrantFiled: April 2, 2019Date of Patent: September 21, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Geoffrey Charles Downton, Jonathan D. Marshall
-
Patent number: 11118408Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between a the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: GrantFiled: June 26, 2018Date of Patent: September 14, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chestnutt
-
Publication number: 20210040796Abstract: A rotary steerable tool may include a tool body with an upper end and a lower end. Additionally, the tool body may include at least one steering assembly extending from the tool body and includes at least one steering actuator configured to extend beyond other portions of the steering assembly. Furthermore, at least one cutter may be disposed on the rotary steerable tool a distance from the at least one steering actuator.Type: ApplicationFiled: January 31, 2019Publication date: February 11, 2021Inventors: Michael George Azar, Edward Richards, Riadh Boualleg, Geoffrey Charles Downton, Denis Li, Richard D. Hill
-
Patent number: 10837234Abstract: A drilling apparatus may alter a direction of travel of a drill bit as it forms a borehole in the earth by furnishing the borehole with a cross-sectional shape that urges the drill bit in a radial direction. Such a cross-sectional shape may comprise two circular arcs, one larger than the apparatus and one smaller. The apparatus may be urged away from the smaller circular arc and into the open space provided by the larger circular arc. Such an apparatus may comprise an axial body and a cutting element extendable in a single radial direction from an exterior of the axial body. Extension of the cutting element may allow it to engage and degrade an inner wall of the borehole. An abrasion-resistant gauge pad protruding from the exterior of the body may ride against the borehole wall and urge the body radially.Type: GrantFiled: December 11, 2018Date of Patent: November 17, 2020Assignee: NOVATEK IP, LLCInventors: Jonathan D. Marshall, Geoffrey Charles Downton, Scott R. Woolston, David R. Hall
-
Publication number: 20200318440Abstract: A downhole drilling apparatus may comprise a rotatable body with various cutting elements connected thereto, some radially protruding therefrom, some radially extendable therefrom, and some revolvable relative thereto about a common axis. In operation, when the body is rotated, the radially protruding cutting elements may bore a generally cylindrical borehole. The radially extendable cutting elements may be extended during specific portions of the body's rotation to degrade certain areas of an inner wall of the borehole transforming it into a non-cylindrical borehole. At certain times, the revolvable cutting elements may be allowed to slide against the non-cylindrical inner wall while freely revolving to minimize disturbance to the borehole shape. At other times, revolution of these revolvable cutting elements may be restrained to ream the borehole back to a cylindrical shape.Type: ApplicationFiled: April 2, 2019Publication date: October 8, 2020Inventors: Geoffrey Charles Downton, Jonathan D. Marshall
-
Patent number: 10731420Abstract: A drill bit may include a bit body and at least two cones assemblies including at least two drive cylinders having at least two cones. The at least two cone assemblies are mounted on the bit body. The drill bit may also include an indexing mechanism coupled to the bit body and configured to rotate and lock at least one drive cylinder. A method of operating the drill bit may include providing fluid to the drill bit, rotating the drill string to drill formation, moving the indexing mechanism an axial distance within a central chamber of the drill bit, rotating the at least two indexable structures as the indexing mechanism moves, and locking the at least two indexable structures.Type: GrantFiled: March 27, 2016Date of Patent: August 4, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Scott S. Dahlgren, David R. Hall, Joshua J. Hanson, Jonathan D. Marshall, John J. Pierce, Yuelin Shen, Balasubramanian Durairajan, Geoffrey Charles Downton, Michael George Azar
-
Patent number: 10689910Abstract: A method for removing material with a bit includes rotating a bit in a first direction, changing the rotational direction and rotating the bit in an opposing second direction. Rotation of the bit in the first direction and rotation of the bit in the second direction both remove material.Type: GrantFiled: June 20, 2017Date of Patent: June 23, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Siamak Dadkhah, Geoffrey Charles Downton, Adam Ian Bowler
-
Patent number: 10669786Abstract: A downhole drilling assembly may comprise a sub secured between a drill string and a drill bit. The sub may comprise a cavity with a chassis housed therein. The drill bit may also comprise a cavity with an extender housed therein. This extender may provide access for various types of communication to reach into the drill bit's cavity. Several pairs of interfacing exchange surfaces may allow for communication (e.g. passing electrical, hydraulic, optical or electromagnetic signals) between these various elements. One pair of interfacing exchange surfaces, between the drill string and the chassis, may allow for communication regardless of relative rotational orientation. Two other pairs of interfacing exchange surfaces, one between the chassis and the extender and another between the extender and the drill bit, may require a specific rotational orientation for communication.Type: GrantFiled: December 11, 2018Date of Patent: June 2, 2020Assignee: NOVATEK IP, LLCInventors: Jonathan D. Marshall, Geoffrey Charles Downton
-
Publication number: 20200141188Abstract: A downhole steering system includes a substantially tubular housing, a shaft positioned within the substantially tubular housing, a first bearing and a second bearing, the first and second bearings being configured to support rotation of the shaft relative to the housing. The first bearing, the second bearing, the shaft, and the housing at least partially define a chamber therebetween. The system also includes at least one structure positioned axially between a the first and second bearing and being configured to extend from an exterior of the housing in response to pressure communicated to the chamber.Type: ApplicationFiled: June 26, 2018Publication date: May 7, 2020Inventors: Jonathan D. Marshall, Edward George Parkin, Geoffrey Charles Downton, David C. Hoyle, Nalin Weerasinghe, Dennis Patrick Chesnutt
-
Publication number: 20200072000Abstract: A downhole tool includes at least a pilot section, a first expansion section, and a second expansion section. The pilot section has a plurality of cutting elements to cut a pilot hole. Each of the expansion sections has a plurality of cutting elements to successively expand the pilot hole to achieve a final wellbore radius. The pilot section, first expansion section, and second expansion section each have one or more stabilizer pads on respective gages to stabilize the downhole tool during wellbore creation.Type: ApplicationFiled: April 24, 2018Publication date: March 5, 2020Inventors: Michael George Azar, Geoffrey Charles Downton, Edward George Parkin