Patents by Inventor Jiinjen Albert Sue
Jiinjen Albert Sue 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).
-
Publication number: 20200149353Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.Type: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Applicant: National Oilwell DHT, L.P.Inventors: Deepthi Raj Setlur, Michael D. Hughes, Mark Jonathan Francis, Harold A. Sreshta, Guodong Zhan, Russell C. Gilleylen, JiinJen Albert Sue
-
Patent number: 10590704Abstract: A downhole tool comprises a body made of a metal or metal alloy. In addition, the downhole tool comprises a coating disposed on the body. The coating includes at least 75 vol % tungsten carbide having an average grain size less than 1.0 ?m. The content of tungsten carbide in the coating with a grain size less than 0.5 ?m is between 40 and 64 vol % of the coating.Type: GrantFiled: June 28, 2012Date of Patent: March 17, 2020Assignee: NATIONAL OILWELL VARCO, L.P.Inventors: Jiinjen Albert Sue, Harold Sreshta, Rajagopala Pillai
-
Patent number: 10570667Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.Type: GrantFiled: November 25, 2014Date of Patent: February 25, 2020Assignee: NATIONAL OILWELL DHT, L.P.Inventors: Deepthi Raj Setlur, Michael D. Hughes, Mark Jonathan Francis, Harold A. Sreshta, Guodong Zhan, Russell C. Gilleylen, JiinJen Albert Sue
-
Publication number: 20180266002Abstract: A coating for protecting a base material from wear and corrosion includes a first layer deposited directly onto an outer surface of the base material. In addition, the coating includes a second layer deposited directly onto the first layer. The first layer is positioned between the base material and the second layer. The first layer includes chromium having a first micro-crack density and the second layer comprises chromium having a second micro-crack density that is less than the first micro-crack density.Type: ApplicationFiled: May 22, 2018Publication date: September 20, 2018Applicant: National Oilwell DHT, L.P.Inventors: Jiinjen Albert Sue, Unnikrishnan C. Vasudevan, Rajagopala N. Pillai
-
Patent number: 9976357Abstract: A drill bit comprises a bit body having a body face. A plurality of fixed blades extends from the bit body. Each of the plurality of fixed blades has a leading face and a trailing face. A plurality of nozzles is disposed on the body face to flow drilling fluid out of the bit body. A plurality of flow guides direct a portion of the drilling fluid away from the bit body. Each of the plurality of flow guides extends longitudinally from the body face, and along the leading face of one of the plurality of fixed blades.Type: GrantFiled: August 12, 2015Date of Patent: May 22, 2018Assignee: National Oilwell DHT, L.P.Inventors: Ali Akbar Moslemi, Jiinjen Albert Sue
-
Patent number: 9909395Abstract: A hardfacing disposable on a surface of a component, such as a wellsite component, is disclosed. The hardfacing comprises a surface portion and a bottom portion with a segregation line defined therebetween. The surface portion and the bottom portion each include a matrix phase including a matrix composition made of a metal alloy and a hard phase distributed in the matrix phase. The hard phase may include an abrasion-resistant composition made of a hard material (e.g., vanadium carbide). The surface portion has a first concentration of the abrasion-resistant composition and the bottom portion has a second concentration of the abrasion-resistant composition with the first concentration being greater than the second concentration such that a wear resistant surface is defined on the surface of the component.Type: GrantFiled: September 21, 2015Date of Patent: March 6, 2018Assignee: NATIONAL OILWELL DHT, L.P.Inventors: Ying Wang, Jiinjen Albert Sue
-
Patent number: 9662769Abstract: A cutter element for a drill bit, comprising: a substrate having a longitudinal axis; a first layer of polycrystalline diamond coupled to the substrate; and a second layer of polycrystalline diamond coupled to the first layer at a first coherent boundary; where the first layer is axially positioned between the substrate and the second layer.Type: GrantFiled: June 8, 2012Date of Patent: May 30, 2017Assignee: NATIONAL OILWELL VARCO, L.P.Inventor: Jiinjen Albert Sue
-
Patent number: 9604345Abstract: A composite material and a methods of making and using the composite material, wherein the composite material provides improved wear resistance and fracture toughness to hard-facing and matrix materials for down hole drilling tools.Type: GrantFiled: November 1, 2013Date of Patent: March 28, 2017Assignee: NATIONAL OILWELL DHT, L.P.Inventors: Ying Wang, Wesley Craig Arceneaux, Sr., Jiinjen Albert Sue, Harold A. Sreshta
-
Publication number: 20170081944Abstract: A hardfacing disposable on a surface of a component, such as a wellsite component, is disclosed. The hardfacing comprises a surface portion and a bottom portion with a segregation line defined therebetween. The surface portion and the bottom portion each include a matrix phase including a matrix composition made of a metal alloy and a hard phase distributed in the matrix phase. The hard phase may include an abrasion-resistant composition made of a hard material (e.g., vanadium carbide). The surface portion has a first concentration of the abrasion-resistant composition and the bottom portion has a second concentration of the abrasion-resistant composition with the first concentration being greater than the second concentration such that a wear resistant surface is defined on the surface of the component.Type: ApplicationFiled: September 21, 2015Publication date: March 23, 2017Inventors: Ying Wang, Jiinjen Albert Sue
-
Publication number: 20170044837Abstract: A drill bit comprises a bit body having a body face. A plurality of fixed blades extends from the bit body. Each of the plurality of fixed blades has a leading face and a trailing face. A plurality of nozzles is disposed on the body face to flow drilling fluid out of the bit body. A plurality of flow guides direct a portion of the drilling fluid away from the bit body. Each of the plurality of flow guides extends longitudinally from the body face, and along the leading face of one of the plurality of fixed blades.Type: ApplicationFiled: August 12, 2015Publication date: February 16, 2017Inventors: Ali Akbar Moslemi, Jiinjen Albert Sue
-
Patent number: 9309767Abstract: A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure.Type: GrantFiled: August 15, 2011Date of Patent: April 12, 2016Assignee: NATIONAL OILWELL VARCO, L.P.Inventors: Harold A. Sreshta, Jiinjen Albert Sue, Stefan M. Butuc, Jan Edgar Marshall
-
Publication number: 20150322719Abstract: A downhole tool comprises a body made of a metal or metal alloy. In addition, the downhole tool comprises a coating disposed on the body. The coating includes at least 75 vol % tungsten carbide having an average grain size less than 1.0 ?m. The content of tungsten carbide in the coating with a grain size less than 0.5 ?m is between 40 and 64 vol % of the coating.Type: ApplicationFiled: June 28, 2012Publication date: November 12, 2015Applicant: NATIONAL OILWELL VARCO, L.P.Inventors: Jiinjen Albert Sue, Harold Sreshta, Rajagopala Pillai
-
Publication number: 20150233188Abstract: A drill bit for cutting through a downhole metal structure includes a bit body having a central axis and a bit face. The bit body is configured to rotate about the central axis in a cutting direction. In addition, the bit includes a cutting structure disposed on the bit face. The cutting structure includes a plurality of circumferentially spaced blades and a plurality of primary cutter elements mounted to each blade. Each primary cutter element has a forward-facing primary cutting face. Each primary cutter element is made of a whisker ceramic composite.Type: ApplicationFiled: September 25, 2013Publication date: August 20, 2015Applicant: National Oilwell DHT, L.P.Inventors: Charles Leonard Wright, II, Harold A. Sreshta, Jiinjen Albert Sue
-
Publication number: 20150176335Abstract: A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C.Type: ApplicationFiled: February 26, 2015Publication date: June 25, 2015Inventors: Jiinjen Albert Sue, Harold Sreshta
-
Publication number: 20150132604Abstract: A coating for protecting a base material from wear and corrosion includes a first layer deposited directly onto an outer surface of the base material. In addition, the coating includes a second layer deposited directly onto the first layer. The first layer is positioned between the base material and the second layer. The first layer includes chromium having a first micro-crack density and the second layer comprises chromium having a second micro-crack density that is less than the first micro-crack density.Type: ApplicationFiled: November 12, 2014Publication date: May 14, 2015Applicant: National Oilwell DHT, L.P.Inventors: Jiinjen Albert Sue, Unnikrishnan C. Vasudevan, Rajagopala N. Pillai
-
Publication number: 20150122552Abstract: A composite material and a methods of making and using the composite material, wherein the composite material provides improved wear resistance and fracture toughness to hard-facing and matrix materials for down hole drilling tools.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Inventors: Ying Wang, Wesley Craig Arceneaux, SR., Jiinjen Albert Sue, Harold A. Sreshta
-
Patent number: 8997900Abstract: A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C.Type: GrantFiled: December 15, 2010Date of Patent: April 7, 2015Assignee: National Oilwell DHT, L.P.Inventors: Jiinjen Albert Sue, Harold Sreshta
-
Publication number: 20150075877Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.Type: ApplicationFiled: November 25, 2014Publication date: March 19, 2015Inventors: Deepthi Raj Setlur, Michael D. Hughes, Mark Jonathan Francis, Harold A. Sreshta, Guodong Zhan, Russell C. Gilleylen, JiinJen Albert Sue
-
Patent number: 8919463Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.Type: GrantFiled: October 24, 2011Date of Patent: December 30, 2014Assignee: National Oilwell DHT, L.P.Inventors: Deepthi Raj Setlur, Michael D. Hughes, Mark Jonathan Francis, Harold A. Sreshta, Guodong Zhan, Russell C. Gilleylen, JiinJen Albert Sue
-
Patent number: 8858733Abstract: A method of laser hardening comprises irradiating a surface of a component with a laser beam to form a first band of irradiated material, irradiating the surface of the component with the laser beam to form a second band of irradiated material that overlaps the first band of irradiated material, where the first band and the second band have a pitch to width ratio of between about 0.5 and about 0.78.Type: GrantFiled: September 21, 2011Date of Patent: October 14, 2014Assignee: National Oilwell Varco, L.P.Inventors: Raju Pillai, Jiinjen Albert Sue, Unnikrishnan Vasudevan