Patents by Inventor Ramamurthy Narasimhan
Ramamurthy Narasimhan 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: 20240376885Abstract: Valve assemblies and related pumps, plungers, lift assemblies, and methods may include an insert disposed in an internal flow path of a plunger. The insert includes protrusions, each individually extending into the internal flow path of the plunger and converging at an apex of the insert to define a cage in which the restriction element is configured to move axially through the internal flow path.Type: ApplicationFiled: July 25, 2024Publication date: November 14, 2024Inventors: Ramamurthy Narasimhan, Juan Felipe Correa Pugliese, Riyadh Salloom, Randy De Werff, Bradley C. Rogers, Jimmy Kemp, Matthew Bishop
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Patent number: 11834916Abstract: The present disclosure relates, according to some embodiments, to a shear pin including a cylindrical shape positioned along a vertical axis having a first end having a common diameter with a second end; the first end and containing a first clutch at a point along the vertical axis that is furthest from the second end, the first clutch containing one of a recessing shape and a protruding shape; (c) the second end containing a second clutch at a point along the vertical axis that is furthest from the first end, the second clutch containing one of a recessing shape and a protruding shape; and (d) the curved portion including a diameter that is largest where the curved portion connects to each of the first end and the second end and then narrows along the curved portion, forming a curve that culminates at a neck where the diameter is smallest.Type: GrantFiled: December 14, 2021Date of Patent: December 5, 2023Assignee: HARBISON-FISCHER, INC.Inventors: Felipe Correa, Ramamurthy Narasimhan, Sergio Granados, Sean Terrill
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Publication number: 20230304363Abstract: Metal-based ceramic composite coatings and related devices, assemblies, and methods include monocrystalline superhard particles dispersed in a metal matrix disposed on at least one wear surface of a component of an oil and gas well assembly, system, or device.Type: ApplicationFiled: March 25, 2022Publication date: September 28, 2023Inventors: Riyadh Salloom, Ramamurthy Narasimhan, Justin Green, Neil Thomas, James Rowan
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Publication number: 20230258060Abstract: Gas lift valves, assemblies, systems, and methods include valves having a valve element for selectively placing a fluid inlet in communication with a fluid outlet, a biasing feature to bias the valve element in one of the open position or the closed position, and a single fluid control line actuator for supplying a force to the valve element to overcome the biasing force of the biasing feature and to move the valve element to the other one of the open position or the closed position.Type: ApplicationFiled: August 12, 2022Publication date: August 17, 2023Inventors: Ramamurthy Narasimhan, Andrew Poerschke, Dustin Sandidge, Stephen Burrows, Paul Roberts
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Patent number: 11549316Abstract: Sensor systems for sucker rod pump systems and gear rod rotator systems may include one or more sensor modules comprising a sensor including at least one of a position sensor, a temperature sensor, a pressure sensor, or a vibration sensor for detecting a characteristic related to at least one component of the sucker rod pump systems or the gear rod rotator system.Type: GrantFiled: January 31, 2022Date of Patent: January 10, 2023Assignee: NORRIS RODS, INC.Inventors: Pablo E. Barajas Cortes, Wanru Casey, Ramamurthy Narasimhan, Jack Lynn Wallace, Juan Felipe Correa Pugliese
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Publication number: 20220282579Abstract: The present disclosure relates, according to some embodiments, to a shear pin including a cylindrical shape positioned along a vertical axis having a first end having a common diameter with a second end; the first end and containing a first clutch at a point along the vertical axis that is furthest from the second end, the first clutch containing one of a recessing shape and a protruding shape; (c) the second end containing a second clutch at a point along the vertical axis that is furthest from the first end, the second clutch containing one of a recessing shape and a protruding shape; and (d) the curved portion including a diameter that is largest where the curved portion connects to each of the first end and the second end and then narrows along the curved portion, forming a curve that culminates at a neck where the diameter is smallest.Type: ApplicationFiled: December 14, 2021Publication date: September 8, 2022Inventors: Felipe Correa, Ramamurthy Narasimhan, Sergio Granados, Sean Terrill
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Publication number: 20220196007Abstract: Valve assemblies and related pumps and methods may include an insert disposed in an internal flow path of a casing where an outer surface of the insert is fixedly engaged with an inner surface the casing with fluid sealing. The insert includes protrusions, each individually extending into the internal flow path of the casing and converging at an apex of the insert to define a cage in which the restriction element is configured to move axially through the internal flow path.Type: ApplicationFiled: March 9, 2022Publication date: June 23, 2022Inventors: Ramamurthy Narasimhan, Juan Felipe Correa Pugliese, Riyadh Salloom, Randy De Werff, Bradley C. Rogers, Jimmy Kemp, Matthew Bishop
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Publication number: 20220154539Abstract: Sensor systems for sucker rod pump systems and gear rod rotator systems may include one or more sensor modules comprising a sensor including at least one of a position sensor, a temperature sensor, a pressure sensor, or a vibration sensor for detecting a characteristic related to at least one component of the sucker rod pump systems or the gear rod rotator system.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Inventors: Pablo E. Barajas Cortes, Wanru Casey, Ramamurthy Narasimhan, Jack Lynn Wallace, Juan Felipe Correa Pugliese
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Patent number: 11300121Abstract: Disclosed is a plunger for use in a sucker-rod pumping system. The plunger reciprocates within a barrel. The plunger comprises first, second, and third sections, in which the first and third sections are sealed against the barrel and in which a second section is between the first and third sections and in some embodiments may be a pull tube. A through passage for production fluid is provided, along with a pressure balancing chamber that is connected to the through passage via a sand snare, where the pressure balancing chamber is operable to equalize pressure on longitudinal sides of the seals, whereas the sand snare operates to restrain solids from reaching the pressure balancing chamber from the through passage (which is carrying the production fluid) and thereby create a slippage flow in the pressure balancing chamber, which equalizes pressure between the balancing chamber and the plunger's through passage.Type: GrantFiled: February 26, 2020Date of Patent: April 12, 2022Assignee: HARBISON-FISCHER, INC.Inventors: Felipe Correa, Sergio Granados, Bradley C. Rogers, Riyadh Salloom, Oscar Zizo, Randy De Werff, Ramamurthy Narasimhan
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Publication number: 20220090470Abstract: The present disclosure relates to a ball check-valve assembly comprising a ball; a casing comprising an outer surface and defining an internal cavity extending within the casing, the internal cavity comprising a cylindrical inner wall; a bottom threaded connection at a downhole end of the casing, the bottom threaded connection comprising an opening therethrough to allow fluid passage into the internal cavity; a top threaded connection at an uphole end of the casing, at least three longitudinally extending guides defined within internal cylindrical cavity; and (f) a sealing surface formed in the casing and interposed between the top threaded connection and the internal cavity, the sealing surface further defining at least three quartic-shaped flow-passages extending from the sealing surface and providing for fluid passage through the sealing surface from the internal cavity to the uphole end of the casing.Type: ApplicationFiled: September 23, 2021Publication date: March 24, 2022Inventors: Juan Felipe Correa Pugliese, Ramamurthy Narasimhan, Riyadh Salloom, Randy De Werff, Bradley C. Rogers, Jimmy Kemp, Matthew Bishop
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Patent number: 11268331Abstract: The disclosure is directed to top caps for gear rod rotators and polished clamps. Disclosed top caps include an elongated top cap body extending along a central vertical axis, the top cap body including a top face, a bottom face, and an exterior perimeter surface defining an outer perimeter of the top cap body, and a polished rod opening extending along the central vertical axis of the top cap body, the polished rod opening defining an interior circumferential surface of the top cap body and configured to receive a polished rod. Additionally, disclosed top caps include a nesting region along the top face, the nesting region configured to receive at least a portion of the polished rod clamp, and a mounting rim on the bottom face and extending outwardly from the bottom face along a longitudinal axis of the top cap body, the mounting rim including a mounting rim outer diameter, a mounting rim inner diameter, and a mounting rim bottom face.Type: GrantFiled: May 12, 2020Date of Patent: March 8, 2022Assignee: NORRIS RODS, INC.Inventors: Pablo E. Barajas Cortes, Wanru Casey, Ramamurthy Narasimhan, Jack Lynn Wallace, Juan Felipe Correa Pugliese
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Publication number: 20200340309Abstract: The disclosure is directed to top caps for gear rod rotators and polished clamps. Disclosed top caps include an elongated top cap body extending along a central vertical axis, the top cap body including a top face, a bottom face, and an exterior perimeter surface defining an outer perimeter of the top cap body, and a polished rod opening extending along the central vertical axis of the top cap body, the polished rod opening defining an interior circumferential surface of the top cap body and configured to receive a polished rod. Additionally, disclosed top caps include a nesting region along the top face, the nesting region configured to receive at least a portion of the polished rod clamp, and a mounting rim on the bottom face and extending outwardly from the bottom face along a longitudinal axis of the top cap body, the mounting rim including a mounting rim outer diameter, a mounting rim inner diameter, and a mounting rim bottom face.Type: ApplicationFiled: May 12, 2020Publication date: October 29, 2020Inventors: Pablo E. Barajas Cortes, Wanru Casey, Ramamurthy Narasimhan, Jack Lynn Wallace, Juan Felipe Correa Pugliese
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Publication number: 20200263688Abstract: Disclosed is a plunger for use in a sucker-rod pumping system. The plunger reciprocates within a barrel. The plunger comprises first, second, and third sections, in which the first and third sections are sealed against the barrel and in which a second section is between the first and third sections and in some embodiments may be a pull tube. A through passage for production fluid is provided, along with a pressure balancing chamber that is connected to the through passage via a sand snare, where the pressure balancing chamber is operable to equalize pressure on longitudinal sides of the seals, whereas the sand snare operates to restrain solids from reaching the pressure balancing chamber from the through passage (which is carrying the production fluid) and thereby create a slippage flow in the pressure balancing chamber, which equalizes pressure between the balancing chamber and the plunger's through passage.Type: ApplicationFiled: February 26, 2020Publication date: August 20, 2020Inventors: Felipe Correa, Sergio Granados, Bradley C. Rogers, Riyadh Salloom, Oscar Zizo, Randy De Werff, Ramamurthy Narasimhan
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Patent number: 10648246Abstract: The disclosure is directed to top caps for gear rod rotators and polished clamps. Disclosed top caps include an elongated top cap body extending along a central vertical axis, the top cap body including a top face, a bottom face, and an exterior perimeter surface defining an outer perimeter of the top cap body, and a polished rod opening extending along the central vertical axis of the top cap body, the polished rod opening defining an interior circumferential surface of the top cap body and configured to receive a polished rod. Additionally, disclosed top caps include a nesting region along the top face, the nesting region configured to receive at least a portion of the polished rod clamp, and a mounting rim on the bottom face and extending outwardly from the bottom face along a longitudinal axis of the top cap body, the mounting rim including a mounting rim outer diameter, a mounting rim inner diameter, and a mounting rim bottom face.Type: GrantFiled: February 28, 2019Date of Patent: May 12, 2020Assignee: Norris Rods, Inc.Inventors: Pablo E. Barajas Cortes, Wanru Casey, Ramamurthy Narasimhan, Jack Lynn Wallace, Juan Felipe Correa Pugliese
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Patent number: 10619441Abstract: Embodiments of a wellhead assembly have a tubular body with a removable bottom cap to house a tubing rotator comprising a multi-enveloping worm gear assembly which provides sufficient torque to rotate tubing strings in deep and/or deviated wellbores. The bottom cap is supported on a wellhead having a dognut for supporting a production string therefrom in a wellbore. The bottom cap rotatably supports a mandrel and multi-enveloping worm wheel thereon, the mandrel being connected to the dognut and tubing string for co-rotation therewith. The tubular body supports a multi-enveloping worm for engagement with the worm wheel when the tubular body is lowered axially onto the bottom cap. When the tubular body and worm are lifted axially from the bottom cap, the worm wheel and mandrel are exposed for repair or replacement without need to pull the production string from the wellbore.Type: GrantFiled: January 5, 2018Date of Patent: April 14, 2020Assignee: Oil Lift Technology Inc.Inventors: Ross Senger, Denis Blaquiere, Ramamurthy Narasimhan, Manjunath Devalapalli Prakash Reddy, Manjunath Jayanthi Narayana Setty, Santhosha Singanahalli Malleshappa, Kogan Lee
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Patent number: 10563489Abstract: A downhole assembly in a wellbore includes a production logging tool disposed in the wellbore and a jet pump device set in a bottom hole assembly uphole from the production logging tool. The jet pump has a central axis, and includes one or more internal components that are radially offset to allow a slickline to pass through the jet pump device. The slickline is configured to actuate the production logging tool. While the jet pump device is operating to produce fluids, the production logging tool is further reciprocated within the wellbore on the slickline to obtain measurements at various locations.Type: GrantFiled: June 27, 2017Date of Patent: February 18, 2020Assignee: PCS Ferguson, Inc.Inventors: Rizwan Lakhani, Ramamurthy Narasimhan, Rohit Abraham Paul, Subrat K. Samantray
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Publication number: 20200018127Abstract: The disclosure is directed to top caps for gear rod rotators and polished clamps. Disclosed top caps include an elongated top cap body extending along a central vertical axis, the top cap body including a top face, a bottom face, and an exterior perimeter surface defining an outer perimeter of the top cap body, and a polished rod opening extending along the central vertical axis of the top cap body, the polished rod opening defining an interior circumferential surface of the top cap body and configured to receive a polished rod. Additionally, disclosed top caps include a nesting region along the top face, the nesting region configured to receive at least a portion of the polished rod clamp, and a mounting rim on the bottom face and extending outwardly from the bottom face along a longitudinal axis of the top cap body, the mounting rim including a mounting rim outer diameter, a mounting rim inner diameter, and a mounting rim bottom face.Type: ApplicationFiled: February 28, 2019Publication date: January 16, 2020Inventors: Pablo E. Barajas Cortes, Wanru Casey, Ramamurthy Narasimhan, Jack Lynn Wallace, Juan Felipe Correa Pugliese
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Publication number: 20180195361Abstract: Embodiments of a wellhead assembly have a tubular body with a removable bottom cap to house a tubing rotator comprising a multi-enveloping worm gear assembly which provides sufficient torque to rotate tubing strings in deep and/or deviated wellbores. The bottom cap is supported on a wellhead having a dognut for supporting a production string therefrom in a wellbore. The bottom cap rotatably supports a mandrel and multi-enveloping worm wheel thereon, the mandrel being connected to the dognut and tubing string for co-rotation therewith. The tubular body supports a multi-enveloping worm for engagement with the worm wheel when the tubular body is lowered axially onto the bottom cap. When the tubular body and worm are lifted axially from the bottom cap, the worm wheel and mandrel are exposed for repair or replacement without need to pull the production string from the wellbore.Type: ApplicationFiled: January 5, 2018Publication date: July 12, 2018Inventors: Ross SENGER, Denis BLAQUIERE, Ramamurthy NARASIMHAN, Manjunath Devalapalli Prakash REDDY, Manjunath Jayanthi Narayana SETTY, Santhosha Singanahalli MALLESHAPPA, Kogan LEE
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Publication number: 20170370195Abstract: A downhole assembly in a wellbore includes a production logging tool disposed in the wellbore and a jet pump device set in a bottom hole assembly uphole from the production logging tool. The jet pump has a central axis, and includes one or more internal components that are radially offset to allow a slickline to pass through the jet pump device. The slickline is configured to actuate the production logging tool. While the jet pump device is operating to produce fluids, the production logging tool is further reciprocated within the wellbore on the slickline to obtain measurements at various locations.Type: ApplicationFiled: June 27, 2017Publication date: December 28, 2017Applicant: ACCELERATED PRODUCTION SERVICES, INC.Inventors: Vijay Kumar, Ramamurthy Narasimhan, Rohit Abraham Paul, Subrat K. Samantray