Patents by Inventor Venkatesh Karuppiah
Venkatesh Karuppiah 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: 11939867Abstract: A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.Type: GrantFiled: February 14, 2020Date of Patent: March 26, 2024Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Andrew Mueller, Dennis Patrick Chesnutt, Ke Chen, Xiaoge Gan, Venkatesh Karuppiah
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Publication number: 20240044213Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.Type: ApplicationFiled: October 23, 2023Publication date: February 8, 2024Inventors: Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael George Azar, Huimin Song, Youhe Zhang, Venkatesh Karuppiah
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Publication number: 20230374865Abstract: A hybrid bit includes fixed blades and wheel support structures. The wheel support structure includes a wheel inserted into a slot between a leading support and a trailing support. One or more shims fill a gap between a flange and the leading supports. An elongated seal between the wheel and the supports is provided to seal the wheel support.Type: ApplicationFiled: September 28, 2021Publication date: November 23, 2023Inventors: Scott D. McDonough, Venkatesh Karuppiah, Mahesha Kumar, Shelton Alsup
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Patent number: 11795764Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.Type: GrantFiled: August 23, 2021Date of Patent: October 24, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael George Azar, Huimin Song, Youhe Zhang, Venkatesh Karuppiah
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Publication number: 20230193697Abstract: A drilling tool having a body, at least one blade extending from the body, and a first cutting element attached to the at least one blade. The first cutting element includes a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge. The elongated protrusion has a geometry including a border extending around a concave surface, a face chamfer formed around the border, and sloped surfaces extending between the border and the edge. An edge chamfer is between the face chamfer and the edge.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
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Patent number: 11578538Abstract: A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.Type: GrantFiled: January 8, 2021Date of Patent: February 14, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
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Publication number: 20220307325Abstract: A cutting element may include a body, a concave cutting face formed at a first end of the body, the cutting face including one or more cutting ridges adjacent a cutting tip that are raised above the concavity of the cutting face and having a length that is at least about 10% of a diameter of the cutting face. An edge is formed around a perimeter of the cutting face, and the edge has an edge angle defined between a tangent of the cutting face and a cylindrical side surface of the body, the edge angle being acute at the cutting tip and varying around the perimeter of the cutting face.Type: ApplicationFiled: August 28, 2020Publication date: September 29, 2022Inventors: Ronald K. Eyre, Yi Fang, Ronald B. Crockett, Lynn Belnap, Aaron Madsen, Haibo Zhang, J. Daniel Belnap, Christopher A. Tucker, Xiaoge Gan, Anjie Dong, Venkatesh Karuppiah
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Publication number: 20220220807Abstract: A hybrid bit includes a fixed cutting structure and a rolling cutting structure. The fixed cutting structure includes a plurality of fixed cutting elements. The rolling cutting structure is coupled to the fixed cutting structure and includes a journal bore extending through the rolling cutting structure from a leading face to a trailing face, and a radially outer surface. The rolling cutting structure also includes a plurality of cutting elements extending from the radially outer surface of the rolling cutting structure.Type: ApplicationFiled: May 21, 2020Publication date: July 14, 2022Inventors: Scott D. McDonough, Venkatesh Karuppiah
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Publication number: 20220112770Abstract: A downhole tool has a directional pad that contacts a wellbore wall at a pad contact location and a drill bit with at least one active cutting element that contacts the wellbore wall at a cutting element contact location. A contact distance between the pad contact location and the cutting element contact location being 3 in. (7.6 cm) or less.Type: ApplicationFiled: February 14, 2020Publication date: April 14, 2022Inventors: Andrew Mueller, Dennis Patrick Chesnutt, Ke Chen, Xiaoge Gan, Venkatesh Karuppiah
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Publication number: 20210381318Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael George Azar, Huimin Song, Youhe Zhang, Venkatesh Karuppiah
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Patent number: 11098532Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.Type: GrantFiled: September 5, 2018Date of Patent: August 24, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael George Azar, Huimin Song, Youhe Zhang, Venkatesh Karuppiah
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Publication number: 20210215003Abstract: A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.Type: ApplicationFiled: January 8, 2021Publication date: July 15, 2021Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
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Patent number: 10662722Abstract: A thread structure in accordance to one or more embodiments includes a thread extending helically along a portion of a bit body in spaced thread turns, the thread having a crest extending between a first flank and a second flank and a root extending between the thread turns, the root having a curvature defined by a portion of an ellipse tangentially adjoining the first and second flank at respective flank transition points, the ellipse having a major axis extending parallel to the axis and a minor axis extending perpendicular to the major axis and through a root bottom.Type: GrantFiled: November 14, 2018Date of Patent: May 26, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Xiaoge Gan, Ke Chen, Venkatesh Karuppiah, Anthony L. Collins, Ke Ken Li, Fei Song, Rakesh Singh, Michael Hui Du, Keith Moriarty
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Publication number: 20190078398Abstract: A thread structure in accordance to one or more embodiments includes a thread extending helically along a portion of a bit body in spaced thread turns, the thread having a crest extending between a first flank and a second flank and a root extending between the thread turns, the root having a curvature defined by a portion of an ellipse tangentially adjoining the first and second flank at respective flank transition points, the ellipse having a major axis extending parallel to the axis and a minor axis extending perpendicular to the major axis and through a root bottom.Type: ApplicationFiled: November 14, 2018Publication date: March 14, 2019Inventors: Xiaoge Gan, Ke Chen, Venkatesh Karuppiah, Anthony L. Collins, Ke Ken Li, Fei Song, Rakesh Singh, Michael Hui Du, Keith Moriarty
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Publication number: 20190071933Abstract: A cutting element includes a body, a non-planar cutting face formed on a first end of the body, and an edge formed around a perimeter of the cutting face. The cutting face includes a central raised portion, and the edge has an edge angle defined between the cutting face and a side surface of the body. The edge angle varies around the perimeter of the cutting face and includes an acute edge angle defined by a portion of the cutting face extending downwardly from the edge to a depth from the cutting angle. The portion of the edge defining the acute edge angle may be directly adjacent: a side surface of the cutting element; a bevel of the cutting element; or a flat region at the perimeter of the cutting element or bevel.Type: ApplicationFiled: September 5, 2018Publication date: March 7, 2019Inventors: Xiaoge Gan, Anjie Dong, Gerard Johnson, Michael George Azar, Huimin Song, Youhe Zhang, Venkatesh Karuppiah