Patents by Inventor Ping C. Sui
Ping C. Sui 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: 10132120Abstract: The present disclosure relates to elastomer-thermally conductive carbon fiber compositions for use in seals for roller-cone drill bits. The present disclosure further relates to seals formed from such compositions and to roller-cone drill bits containing such seals.Type: GrantFiled: September 19, 2014Date of Patent: November 20, 2018Assignee: Halliburton Energy Services, Inc.Inventors: B. Raghava Reddy, Feng Liang, Ping C. Sui, David P. Duckworth
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Patent number: 9677341Abstract: An extended life seal is incorporated into a drill bit used for drilling a wellbore. The drill bit can include a seal surface, a seal which engages the seal surface, and a groove which compresses the seal greater on opposite axial sides than at a central portion of the seal. The drill bit may include the seal having a cylindrical surface which engages the seal surface, and another cylindrical surface opposite the first surface, and the groove having a third cylindrical surface which engages the second surface, and wherein the groove simultaneously biases the seal toward the seal surface on opposite axial sides of the third surface. The drill bit may include the seal having right cylindrical shaped inner and outer surfaces, and a contact pressure between the seal surface and the seal being greater at each opposite side of the seal than at a central portion of the seal.Type: GrantFiled: July 12, 2010Date of Patent: June 13, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Seth G. Anderle, Ping C. Sui, Mark E. Williams, Guy Lefort
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Patent number: 9493990Abstract: A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a respective cutting structure with a minimal moment center located along each respective axis of rotation. Each respective bearing structure has a center point located proximate each respective minimal moment center.Type: GrantFiled: December 4, 2007Date of Patent: November 15, 2016Assignee: Halliburton Energy Services, Inc.Inventors: Shilin Chen, Ping C. Sui
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Publication number: 20160201397Abstract: The present disclosure relates to elastomer-thermally conductive carbon fiber compositions for use in seals for roller-cone drill bits. The present disclosure further relates to seals formed from such compositions and to roller-cone drill bits containing such seals.Type: ApplicationFiled: September 19, 2014Publication date: July 14, 2016Inventors: B. Raghava REDDY, Feng LIANG, Ping C. SUI, David P. DUCKWORTH
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Publication number: 20150267472Abstract: A system of repairing and protecting a surface of a drill bit includes forming a drill bit body that includes a magnetized material or is otherwise magnetizable. The drill bit includes at least one cutting element and is operable to generate a magnetic field. A drilling fluid that includes magnetizable, regenerative particles is circulated through a drill string and wellbore in which the drill bit is deployed. The magnetic field attracts the regenerative particles to the surface of the drill bit body to occupy cracks and chips formed in the surface of the drill bit body, and to form a protective layer of the regenerative particles over the surface of the drill bit body.Type: ApplicationFiled: March 18, 2014Publication date: September 24, 2015Applicant: Halliburton Energy Services, Inc.Inventors: Garrett T. Olsen, Jay Stuart Bird, Ping C. Sui
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Patent number: 8789623Abstract: The present disclosure relates to greases containing metal sulfonate thickeners. In one example the thickener may be a calcium sulfonate thickener. In other examples grease may contain a combination of a metal sulfonate thickener and another thickener, such as a metal complex soap grease, detergent, or non-soap thickener. The grease may be formulated to meet specific performance criteria relevant to lubrication of a roller cone drill bit in downhole conditions. The disclosure also relates to a roller cone drill bit containing a grease of the disclosure.Type: GrantFiled: April 5, 2013Date of Patent: July 29, 2014Assignee: Halliburton Energy Services, Inc.Inventors: David P. Duckworth, Ping C. Sui, Liwen Wei
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Publication number: 20130220704Abstract: The present disclosure relates to greases containing metal sulfonate thickeners. In one example the thickener may be a calcium sulfonate thickener. In other examples grease may contain a combination of a metal sulfonate thickener and another thickener, such as a metal complex soap grease, detergent, or non-soap thickener. The grease may be formulated to meet specific performance criteria relevant to lubrication of a roller cone drill bit in downhole conditions. The disclosure also relates to a roller cone drill bit containing a grease of the disclosure.Type: ApplicationFiled: April 5, 2013Publication date: August 29, 2013Inventors: David P. Duckworth, Ping C. Sui, Liwen Wei
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Patent number: 8459379Abstract: A method of reducing contact pressure between bearing surfaces of a well tool can include constructing a structure which supports one bearing surface in contact with the other bearing surface, and reducing contact pressure between the bearing surfaces by relieving strain energy in the structure. A well tool can include one bearing surface which contacts another bearing surface. There is a transition between contact and lack of contact between the bearing surfaces. A structure supporting one of the bearing surfaces can have a reduced stiffness, whereby a contact pressure between the bearing surfaces is reduced at the transition. The bearing surfaces can be formed on a thrust bearing, plain bearing, or other type of bearing between components of the well tool.Type: GrantFiled: January 12, 2010Date of Patent: June 11, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Ping C. Sui, Gary E. Weaver
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Publication number: 20120111639Abstract: Systems and methods are provided for swellable material activation and monitoring in a subterranean well. A sensor system for use in a subterranean well includes a swellable material, and at least one sensor which is displaced to a wellbore surface in response to swelling of the swellable material. Another sensor system includes a sensor which detects swelling of a swellable material. A swellable well tool system includes a base pipe, a swellable material on an exterior of the base pipe, and eccentric weighting for inducing rotation of the swellable material about a longitudinal axis of the base pipe.Type: ApplicationFiled: July 12, 2010Publication date: May 10, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Seth G. Anderle, Ping C. Sui, Mark E. Williams, Guy Lefort
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Publication number: 20110168450Abstract: A method of reducing contact pressure between bearing surfaces of a drill bit can include constructing a structure which supports one bearing surface in contact with the other bearing surface, and reducing contact pressure between the bearing surfaces by relieving strain energy in the structure. A drill bit can include one bearing surface which contacts another bearing surface. There is a transition between contact and lack of contact between the bearing surfaces. A structure supporting one of the bearing surfaces has a reduced stiffness, whereby a contact pressure between the bearing surfaces is reduced at the transition.Type: ApplicationFiled: January 12, 2010Publication date: July 14, 2011Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Ping C. SUI, Gary E. WEAVER
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Publication number: 20110168407Abstract: A method of reducing contact pressure between bearing surfaces of a well tool can include constructing a structure which supports one bearing surface in contact with the other bearing surface, and reducing contact pressure between the bearing surfaces by relieving strain energy in the structure. A well tool can include one bearing surface which contacts another bearing surface. There is a transition between contact and lack of contact between the bearing surfaces. A structure supporting one of the bearing surfaces can have a reduced stiffness, whereby a contact pressure between the bearing surfaces is reduced at the transition. The bearing surfaces can be formed on a thrust bearing, plain bearing, or other type of bearing between components of the well tool.Type: ApplicationFiled: January 12, 2010Publication date: July 14, 2011Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Ping C. SUI, Gary E. WEAVER
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Publication number: 20110048809Abstract: The present disclosure relates to greases containing metal sulfonate thickeners. In one example the thickener may be a calcium sulfonate thickener. In other examples grease may contain a combination of a metal sulfonate thickener and another thickener, such as a metal complex soap grease, detergent, or non-soap thickener. The grease may be formulated to meet specific performance criteria relevant to lubrication of a roller cone drill bit in downhole conditions. The disclosure also relates to a roller cone drill bit containing a grease of the disclosure.Type: ApplicationFiled: January 16, 2009Publication date: March 3, 2011Inventors: David P. Duckworth, Ping C. Sui, Liwen Wei
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Patent number: 7434632Abstract: Roller cone drill bits may be formed with cutting elements and cutting structures having cutting element profile angles selected to minimize cone wobble and improve life of associated bearings and seals. Normal force axes of the cutting elements may intersect with each other as a force center. Crest points of the cutting elements may be disposed on one or more circles extending from the associated force center.Type: GrantFiled: August 17, 2004Date of Patent: October 14, 2008Assignee: Halliburton Energy Services, Inc.Inventors: Shilin Chen, Ping C. Sui
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Patent number: 7360612Abstract: A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a respective cutting structure with a minimal moment center located along each respective axis of rotation. Each respective bearing structure has a center point located proximate each respective minimal moment center.Type: GrantFiled: August 12, 2005Date of Patent: April 22, 2008Assignee: Halliburton Energy Services, Inc.Inventors: Shilin Chen, Ping C. Sui