Patents by Inventor Danny Artherholt
Danny Artherholt 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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Publication number: 20240102558Abstract: A valve for use in oil and gas production or similar applications includes a plug or other flow barrier disposed in a cavity of a hollow valve body with a metal-to-metal sealing surface that is not reliant on any rubberized or elastomeric material to effect a seal.Type: ApplicationFiled: December 6, 2023Publication date: March 28, 2024Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Bob McGuire, Danny Artherholt, Mickey Claxton, Blake Mullins
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Publication number: 20230235823Abstract: A valve for use in oil and gas production or similar applications includes a ball disposed in a cavity of a hollow valve body with a metal-to-metal sealing surface that is not reliant on any rubberized or elastomeric material to effect a seal.Type: ApplicationFiled: March 29, 2023Publication date: July 27, 2023Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Bob McGuire, Danny Artherholt, Mickey Claxton, Blake Mullins
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Publication number: 20220307362Abstract: A frac manifold isolation tool configured to connect to a zipper spool, and comprising a mandrel that is axially movable and a hydraulic setting tool configured to move the mandrel from an open position, in which fracturing fluid is allowed to flow from a zipper spool to a connected frac tree, to a closed position, in which the mandrel and its associated cup tool direct flow.Type: ApplicationFiled: June 14, 2022Publication date: September 29, 2022Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Jimmy Livingston, Haifang Zhao, Bob McGuire, Mickey Claxton, Danny Artherholt, Darin Grassmann
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Patent number: 9879499Abstract: An improved ball drop apparatus including an atmosphere-to-pressure frac ball injection chamber. A ball is first inserted into the atmosphere-to-pressure ball injection chamber from a ball feeding apparatus. The ball is then pushed into a pressure equalization section through a first seal pack. In a preferred embodiment, the pressure equalization section is connected to a pressure equalization apparatus and also to the wellbore through a second seal pack. Once the ball is injected into the pressure equalization section, the pressure equalization apparatus applies pressure, thereby causing the pressure of the pressure equalization section to increase until it reaches close to wellbore pressure. Once the pressures of the pressure equalization section and the wellbore are close, the atmosphere-to-pressure frac ball injection chamber and the frac ball are pushed through the second seal pack and into the wellbore, where the frac ball can be pumped downhole.Type: GrantFiled: August 19, 2016Date of Patent: January 30, 2018Assignee: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Danny Artherholt, Bob McGuire, Jeremy Gardner, Dennis Artherholt
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Publication number: 20160356112Abstract: An improved ball drop apparatus including an atmosphere-to-pressure frac ball injection chamber. A ball is first inserted into the atmosphere-to-pressure ball injection chamber from a ball feeding apparatus. The ball is then pushed into a pressure equalization section through a first seal pack. In a preferred embodiment, the pressure equalization section is connected to a pressure equalization apparatus and also to the wellbore through a second seal pack. Once the ball is injected into the pressure equalization section, the pressure equalization apparatus applies pressure, thereby causing the pressure of the pressure equalization section to increase until it reaches close to wellbore pressure. Once the pressures of the pressure equalization section and the wellbore are close, the atmosphere-to-pressure frac ball injection chamber and the frac ball are pushed through the second seal pack and into the wellbore, where the frac ball can be pumped downhole.Type: ApplicationFiled: August 19, 2016Publication date: December 8, 2016Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: DANNY ARTHERHOLT, BOB MCGUIRE, JEREMY GARDNER, DENNIS ARTHERHOLT
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Patent number: 9447652Abstract: An improved ball drop apparatus including an atmosphere-to-pressure frac ball injection chamber. A ball is first inserted into the atmosphere-to-pressure ball injection chamber from a ball feeding apparatus. The ball is then pushed into a pressure equalization section through a first seal pack. In a preferred embodiment, the pressure equalization section is connected to a pressure equalization apparatus and also to the wellbore through a second seal pack. Once the ball is injected into the pressure equalization section, the pressure equalization apparatus applies pressure, thereby causing the pressure of the pressure equalization section to increase until it reaches close to wellbore pressure. Once the pressures of the pressure equalization section and the wellbore are close, the atmosphere-to-pressure frac ball injection chamber and the frac ball are pushed through the second seal pack and into the wellbore, where the frac ball can be pumped downhole.Type: GrantFiled: July 11, 2014Date of Patent: September 20, 2016Assignee: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Danny Artherholt, Bob McGuire, Jeremy Gardner, Dennis Artherholt
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Publication number: 20150021024Abstract: An improved ball drop apparatus including an atmosphere-to-pressure frac ball injection chamber. A ball is first inserted into the atmosphere-to-pressure ball injection chamber from a ball feeding apparatus. The ball is then pushed into a pressure equalization section through a first seal pack. In a preferred embodiment, the pressure equalization section is connected to a pressure equalization apparatus and also to the wellbore through a second seal pack. Once the ball is injected into the pressure equalization section, the pressure equalization apparatus applies pressure, thereby causing the pressure of the pressure equalization section to increase until it reaches close to wellbore pressure. Once the pressures of the pressure equalization section and the wellbore are close, the atmosphere-to-pressure frac ball injection chamber and the frac ball are pushed through the second seal pack and into the wellbore, where the frac ball can be pumped downhole.Type: ApplicationFiled: July 11, 2014Publication date: January 22, 2015Applicant: OIL STATES ENERGY SERVICES, L.L.C.Inventors: Danny Artherholt, Bob McGuire, Jeremy Gardner, Dennis Artherholt
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Publication number: 20080011489Abstract: A cup tool includes a cup tool tube having a threaded upper end for connection to a high-pressure mandrel, an outer surface over which an elastomeric cup is slidably mounted for reciprocal movement from an unset position for entry into a wellbore to a set position in which an annular gap is obstructed to contain fluid pressure below the elastomeric cup. The outer surface of the cup tool tube has a lower region of a first diameter and an upper region with a second, larger diameter and a tapered region between the upper region and the lower region. The elastomeric cup includes a lip seal that rides against the outer surface of the cup tool tube, and seals against the tapered region of the cup tool tube to provide a high pressure seal between the cup tool tube and the elastomeric cup in the set position.Type: ApplicationFiled: July 24, 2007Publication date: January 17, 2008Applicant: STINGER WELLHEAD PROTECTION, INC.Inventors: Bob McGuire, Danny Artherholt
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Publication number: 20070262282Abstract: A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back cap retainer nut and the back cap seal body permits the back cap seal body to flex and expand with a plug valve body of the plug valve. This ensures that the back cap seals are not stressed and a longer service life results.Type: ApplicationFiled: May 9, 2006Publication date: November 15, 2007Inventor: Danny Artherholt
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Publication number: 20070235182Abstract: A cup tool for use with a high-pressure mandrel of a wellhead isolation tool has a three-part packoff assembly that slides over a cup tool tube from an unset position to a set position. The three-part pack off assembly includes an elastomeric cup, a rigid alignment ring located above the elastomeric cup and an elastomeric packoff element located above the rigid alignment ring. The rigid alignment ring helps ensure that the elastomeric cup remains correctly aligned in a casing or tubing that is not straight, is out of round or is washed, and helps ensure that the elastomeric packoff achieves a high-pressure seal in the set position, even under adverse downhole conditions.Type: ApplicationFiled: April 5, 2006Publication date: October 11, 2007Inventor: Danny Artherholt
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Publication number: 20070013188Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.Type: ApplicationFiled: July 14, 2005Publication date: January 18, 2007Inventors: L. Dallas, Bob McGuire, Danny Artherholt
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Publication number: 20070012439Abstract: A cup tool includes a cup tool tube having a threaded upper end for connection to a high-pressure mandrel, an outer surface over which an elastomeric cup is slidably mounted for movement from an unset position for entry into a wellbore to a set position in which an annular gap is obstructed to contain fluid pressure below the elastomeric cup. The cup tool tube includes an annular jump step designed to inhibit movement of the cup to the set position during insertion of the cup tool into the wellbore, and a gauge ring located above the jump step.Type: ApplicationFiled: July 15, 2005Publication date: January 18, 2007Inventors: Bob McGuire, Danny Artherholt