Patents by Inventor Jianbing Hu
Jianbing Hu 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: 10648266Abstract: Systems, tools, and methods include using a milling assembly with a mill having multiple, different types of cutting element inserts. A gage region of the mill includes a first type of cutting element insert, and a shoulder region of the mill includes a second type of cutting element insert. One cutting element insert may include chip-breaking features, and the other may be a shear or gouging cutting element.Type: GrantFiled: September 29, 2017Date of Patent: May 12, 2020Assignee: Wellbore Integrity Solutions LLCInventors: Zhenbi Su, Vijayakumar Palani, Sudarsanam Chellappa, Jianbing Hu, Christopher Glass, Timothy Andrew Burdett
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Patent number: 9988852Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.Type: GrantFiled: December 17, 2015Date of Patent: June 5, 2018Assignee: SMITH INTERNATIONAL, INC.Inventor: Jianbing Hu
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Publication number: 20180094496Abstract: Systems, tools, and methods include using a milling assembly with a mill having multiple, different types of cutting element inserts. A gage region of the mill includes a first type of cutting element insert, and a shoulder region of the mill includes a second type of cutting element insert. One cutting element insert may include chip-breaking features, and the other may be a shear or gouging cutting element.Type: ApplicationFiled: September 29, 2017Publication date: April 5, 2018Inventors: Zhenbi Su, Vijayakumar Palani, Sudarsanam Chellappa, Jianbing Hu, Christopher Glass, Timothy Andrew Burdett
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Publication number: 20160102502Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.Type: ApplicationFiled: December 17, 2015Publication date: April 14, 2016Inventor: Jianbing Hu
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Publication number: 20160032710Abstract: A downhole tool is disclosed for measuring wellbore geometry. The downhole tool may include a body with a bore extending at least partially therethrough. The body may include a radial recess. An arm may be movably coupled to the body at a first end portion of the arm. The arm may be within the radial recess in a retracted position and be pivotable in a radially-outward direction relative to the body to an expanded position. A measurement device coupled to the body may measure the pivoting motion of the arm. A piston coupled to the body may be movably coupled to a second end portion of the arm, and the piston may respond to changes in hydraulic pressure to pivot the arm between the retracted position and the expanded position.Type: ApplicationFiled: March 13, 2014Publication date: February 4, 2016Applicant: SMITH INTERNATIONAL, INC.Inventors: Jianbing Hu, James Layne Larsen, Tommy G. Ray, Dwayne P. Terracina, Rui Gao, Jennifer L. Pereira, Weixiong Wang, Ming Zhang, Zhenbi Su, Baozhong Yang, Siqi Xu, Sudarsanam Chellappa, Vishal Saheta, Robert Utter
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Patent number: 9243457Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.Type: GrantFiled: March 12, 2013Date of Patent: January 26, 2016Assignee: Smith International, Inc.Inventor: Jianbing Hu
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Publication number: 20150114716Abstract: Various implementations described herein are directed to a vibration tool, e.g., for use in drilling or other downhole operations. In one implementation, the vibration tool may include a housing having a bore extending therethrough. The vibration tool may also include a piston subassembly positioned inside the bore, where the piston subassembly is configured to oscillate when fluid flow inside the piston subassembly exceeds a predetermined flow rate. The vibration tool may further include a valve mechanism positioned around the piston subassembly, where the valve mechanism is configured to restrict fluid to flow inside the piston subassembly when the valve mechanism is in a closed state and configured to allow the fluid to flow from the piston subassembly to the bore when the valve mechanism is in an open state.Type: ApplicationFiled: September 26, 2014Publication date: April 30, 2015Inventors: Baozhong Yang, Tommy G. Ray, Jianbing Hu, Zhenbi Su, Dwayne P. Terracina, Xin Hu
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Patent number: 8936099Abstract: A downhole tool including a cam housing disposed in a central bore of a sub; a cam piston having a cam track disposed in the cam housing; a rotary piston having a rotary valve and an auxiliary track disposed in the cam housing; a guide pin extending through the cam housing into the cam track having at least two return paths; and a position pin disposed on a cam flange and extending into the auxiliary track. Also, a method of actuating a downhole tool, the method including disposing the downhole tool in a wellbore, wherein the downhole tool comprises a cam piston and a rotary piston; providing a flow of fluid through a central bore of the downhole tool at a working flow rate; changing the flow of fluid through the central bore of the downhole tool to a trigger range, and rotating a rotary valve of the rotary piston.Type: GrantFiled: February 3, 2011Date of Patent: January 20, 2015Assignee: Smith International, Inc.Inventor: Jianbing Hu
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Publication number: 20150014061Abstract: A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.Type: ApplicationFiled: September 26, 2014Publication date: January 15, 2015Inventors: Jian Wu, Jianbing Hu, Dwayne P. Terracina, Tommy G. Ray
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Publication number: 20140353041Abstract: A method of drilling a wellbore with a downhole tool having a cam piston, and a rotary piston includes providing a first flow of fluid to the downhole tool. The first flow of fluid causes the cam piston to move axially downward, thereby rotating a rotary valve of the rotary piston, which in turn places the downhole tool in a compressed position to activate a secondary tool. Next the formation may be drilled with the downhole tool in a compressed position. A second flow of fluid may be provided to the downhole tool to move the cam piston axially downward thereby rotating the rotary valve and deactivating the secondary tool.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Inventor: Jianbing Hu
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Patent number: 8863843Abstract: A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.Type: GrantFiled: May 20, 2011Date of Patent: October 21, 2014Assignee: Smith International, Inc.Inventors: Jian Wu, Jianbing Hu, Dwayne P Terracina, Tommy G Ray
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Publication number: 20140131108Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.Type: ApplicationFiled: March 12, 2013Publication date: May 15, 2014Applicant: Schlumberger Technology CorporationInventor: Jianbing Hu
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Publication number: 20120199363Abstract: A downhole tool including a cam housing disposed in a central bore of a sub; a cam piston having a cam track disposed in the cam housing; a rotary piston having a rotary value and an auxiliary track disposed in the cam housing; a guide pin extending through the cam housing into the cam track; and a position pin extending through a cam flange into the auxiliary track. Also, a method of actuating a downhole tool, the method including disposing the downhole tool in a wellbore, wherein the downhole tool comprises a cam piston and a rotary piston; providing a flow of fluid through a central bore of the downhole tool at a working flow rate; changing the flow of fluid through the central bore of the downhole tool to a trigger range, thereby rotating a rotary valve of the rotary piston.Type: ApplicationFiled: February 3, 2011Publication date: August 9, 2012Applicant: SMITH INTERNATIONAL, INC.Inventor: Jianbing Hu
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Publication number: 20110284233Abstract: A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.Type: ApplicationFiled: May 20, 2011Publication date: November 24, 2011Applicant: SMITH INTERNATIONAL, INC.Inventors: Jian Wu, Jianbing Hu, Tommy G. Ray, Dwayne Terracina