Patents by Inventor Yuh Loh
Yuh Loh 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: 20240125202Abstract: A valve including a flexible tube having two ends, a first structure disposed at one of the two ends and rotationally anchored thereto, and a second structure at the other of the two ends and rotationally anchored thereto, at least one of the first and second structures being rotatable relative to the other of the first and second structures. A method for controlling a flow of fluid including rotating one of the first structure and second structure relative to the other of the first structure and second structure of the valve reducing a dimension of a flow path within a flexible tube. A borehole system including a borehole in a subsurface formation, and a valve disposed in the borehole.Type: ApplicationFiled: October 12, 2022Publication date: April 18, 2024Inventors: Yuh Loh, Zhi Yong He
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Publication number: 20240102381Abstract: A pressure sensor including a crystal housing, a transducer crystal disposed in the housing in vacuum conditions, a driver in contact with the crystal transducer, and a deflectable member in contact with the driver on one surface and exposed to ambient pressure on the opposite surface thereof. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a sensor connected to the string.Type: ApplicationFiled: August 10, 2023Publication date: March 28, 2024Inventors: Yuh Loh, Javid Akhtar Majid
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Patent number: 11920429Abstract: An injection valve including a housing, a fluid channel in the housing, and a check valve disposed in the housing and responsive to fluid pressure in the channel to move the check valve in a direction opposite the direction of fluid flow through the channel. A method for injecting fluid into a volume including pressurizing a fluid to be injected, conveying the pressurized fluid to a space about a check valve between a check valve nose and a stem seal; and moving the check valve in a direction opposite a direction of injection fluid flow. A borehole system including a borehole in a subsurface formation, a string disposed within the borehole, and an injection valve disposed within or as a part of the string.Type: GrantFiled: October 28, 2021Date of Patent: March 5, 2024Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventor: Yuh Loh
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Publication number: 20240035362Abstract: An example method includes implementing a flow control device at an injection point downhole in a borehole of a wellbore operation to collect flow rate data of a fluid injected into the borehole. The method further includes collecting the flow rate data using a flow sensor disposed in the flow control device. The method further includes controlling a chemical injection system based at least in part on the flow rate data.Type: ApplicationFiled: July 28, 2022Publication date: February 1, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Zhi Yong He, Yuh Loh, Fernando Kirnbauer
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Patent number: 11879324Abstract: A compact instrumented downhole coupling that includes a carrier and a set of sensors and electronics that are installed within the carrier. The carrier is a tubular structure having couplings at each end and a bore therethrough, where cavities are formed in the carrier wall. The cavities are open to a side facing away from the carrier's bore, where sensors placed in the cavities are accessible through the side opening. Electrical connections to the sensors are made via the side opening, and a clamp can be installed in the cavities via the side opening, the clamp holding the sensors securely in position within the cavities. After installation of the sensors in the cavities, plates are welded over the side opening to form an enclosure for the sensors in the carrier wall.Type: GrantFiled: December 16, 2021Date of Patent: January 23, 2024Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Yuh Loh, John Raggio, Lorn Rendall
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Patent number: 11746609Abstract: A pressure compensator including a housing, an electroactive polymer (EAP) disposed in the housing and defining a volume therein, the volume being changeable upon application of an electric signal. A method for managing pressure in a tool including applying an electrical signal to the pressure compensator and changing a shape of the EAP to change the volume of the compensator whereby the pressure in the tool is altered. A borehole system including a borehole in a subsurface formation, a string in the borehole, a pressure compensator disposed within or as a part of the string.Type: GrantFiled: November 15, 2021Date of Patent: September 5, 2023Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Yuh Loh, Zhihui Zhang
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Patent number: 11725481Abstract: A mandrel in production tubing within a well has a side pocket with an inlet port for connection to an upper control line segment that extends upward alongside the production tubing. An outlet port is below the inlet port for connection to a lower control line segment extending below the pocket. A filter assembly is lowered through the production tubing into the pocket. A valve at a lower end of the pocket is movable from a closed position closing the outlet port to an open position opening the outlet port. A probe mounted to a lower end of the filter assembly engages and pushes the valve from the closed position to the open position while the filter assembly is being seated in the pocket.Type: GrantFiled: April 22, 2022Date of Patent: August 15, 2023Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Yuh Loh, Zhi Yong He, Tony Rocco Hepp
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Publication number: 20230160272Abstract: A downhole tool including a body having a function relevant to a selected environment, an electroactive polymer (EAP) anchor disposed with the body and configured to expand, upon application of an electric signal to the EAP, into loaded contact with a tubular member in which the downhole tool is to be set during use. A method for managing a borehole including running a tool to a selected depth in the borehole, applying an electric signal to the EAP, and anchoring the tool with the EAP. A borehole system including a borehole in a subsurface formation, a string in the borehole, a tool disposed within or as a part of the string.Type: ApplicationFiled: November 22, 2021Publication date: May 25, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Yuh Loh, Zhihui Zhang, John Puh
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Publication number: 20230151704Abstract: A pressure compensator including a housing, an electroactive polymer (EAP) disposed in the housing and defining a volume therein, the volume being changeable upon application of an electric signal. A method for managing pressure in a tool including applying an electrical signal to the pressure compensator and changing a shape of the EAP to change the volume of the compensator whereby the pressure in the tool is altered. A borehole system including a borehole in a subsurface formation, a string in the borehole, a pressure compensator disposed within or as a part of the string.Type: ApplicationFiled: November 15, 2021Publication date: May 18, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Yuh Loh, Zhihui Zhang
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Publication number: 20230145431Abstract: A spoolable device including a first communication interface, a second communication interface, a power management module, a functional electrical module, and a junction joining each of the above elements together and creating a shared pressure chamber. A method for making a spoolable device comprising welding a functional electrical module to a first portion of a junction box, welding a first communication interface to the first portion of a junction box, welding a power management module to a second portion of a junction box, welding a second communication interface to the second portion of a junction box, and welding the first portion of a junction box to the second portion of the junction box to form a pressure chamber inside the first and second portions of the junction box.Type: ApplicationFiled: November 8, 2021Publication date: May 11, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Yuh Loh, Lorn Rendall, John Raggio
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Publication number: 20230139113Abstract: An injection valve including a housing, a fluid channel in the housing, and a check valve disposed in the housing and responsive to fluid pressure in the channel to move the check valve in a direction opposite the direction of fluid flow through the channel. A method for injecting fluid into a volume including pressurizing a fluid to be injected, conveying the pressurized fluid to a space about a check valve between a check valve nose and a stem seal; and moving the check valve in a direction opposite a direction of injection fluid flow. A borehole system including a borehole in a subsurface formation, a string disposed within the borehole, and an injection valve disposed within or as a part of the string.Type: ApplicationFiled: October 28, 2021Publication date: May 4, 2023Applicant: Baker Hughes Oilfield Operations LLCInventor: Yuh Loh
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Publication number: 20230135161Abstract: A convertible sensor module kit including a housing, a sensor port in the housing and having a seal block receptacle fluidly coupled to the sensor port, and a tubing pressure seal block or an annulus pressure seal block disposed in the receptacle. A module for sensing annulus pressure comprising a housing, a sensor port in the housing and having a seal block receptacle fluidly coupled to the sensor port, and an annulus pressure seal block disposed in the receptacle, the block including a communication channel intersecting a monitor channel, the monitor channel in fluid pressure connection with the sensor port.Type: ApplicationFiled: November 2, 2021Publication date: May 4, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Yuh Loh, Javid Majid
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Patent number: 11591890Abstract: A hydrocarbon production system comprises a base pipe; and a separator having a body with an inner surface defining a conduit, the inner surface being coated with a polymer blend comprising a hydrophilic component and a hydrophobic component, an inlet, a water outlet, and an oil outlet fluidly coupled to the base pipe.Type: GrantFiled: January 21, 2021Date of Patent: February 28, 2023Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Zhi Yong He, Yuh Loh, Zhihui Zhang
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Patent number: 11506046Abstract: An compact instrumented downhole coupling that includes a carrier and a set of sensors and electronics that are installed within the carrier. The carrier is a tubular structure having couplings at each end and a bore extending through the carrier from the first end to the second end, forming a carrier wall between the bore and the exterior surface of the carrier. The bore and couplings are offset from a central axis of the carrier (the axis of the cylindrical outer surface of the carrier), resulting in a thicker portion of the carrier wall on one side of the carrier. Cavities are formed (e.g., by drilling holes) within the thicker portion of the carrier wall. One or more sensors and corresponding electronics are then positioned within the cavities, so that the carrier wall itself forms a housing for the sensors and electronics.Type: GrantFiled: December 16, 2020Date of Patent: November 22, 2022Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Yuh Loh, Thomas McClain Scott, James Joseph Freeman, John Raggio, Lorn Rendall
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Publication number: 20220243557Abstract: A mandrel in production tubing within a well has a side pocket with an inlet port for connection to an upper control line segment that extends upward alongside the production tubing. An outlet port is below the inlet port for connection to a lower control line segment extending below the pocket. A filter assembly is lowered through the production tubing into the pocket. A valve at a lower end of the pocket is movable from a closed position closing the outlet port to an open position opening the outlet port. A probe mounted to a lower end of the filter assembly engages and pushes the valve from the closed position to the open position while the filter assembly is being seated in the pocket.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Applicant: Baker Hughes Oilfield Operations LLCInventors: Yuh Loh, Zhi Yong He, Tony Rocco Hepp
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Publication number: 20220228472Abstract: A hydrocarbon production system comprises a base pipe; and a separator having a body with an inner surface defining a conduit, the inner surface being coated with a polymer blend comprising a hydrophilic component and a hydrophobic component, an inlet, a water outlet, and an oil outlet fluidly coupled to the base pipe.Type: ApplicationFiled: January 21, 2021Publication date: July 21, 2022Applicant: Baker Hughes Oilfield Operations LLCInventors: Zhi Yong He, Yuh Loh, Zhihui Zhang
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Patent number: 11377929Abstract: A mandrel in production tubing within a well has a side pocket with an inlet port for connection to an upper control line segment that extends upward alongside the production tubing. An outlet port is below the inlet port for connection to a lower control line segment extending below the pocket. A filter assembly is lowered through the production tubing into the pocket. A valve at a lower end of the pocket is movable from a closed position closing the outlet port to an open position opening the outlet port. A probe mounted to a lower end of the filter assembly engages and pushes the valve from the closed position to the open position while the filter assembly is being seated in the pocket.Type: GrantFiled: August 2, 2019Date of Patent: July 5, 2022Assignee: BAKER HUGHES OILFIELD OPERATIONS, LLCInventors: Yuh Loh, Zhi Yong He, Tony Rocco Hepp
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Publication number: 20220186602Abstract: An compact instrumented downhole coupling that includes a carrier and a set of sensors and electronics that are installed within the carrier. The carrier is a tubular structure having couplings at each end and a bore extending through the carrier from the first end to the second end, forming a carrier wall between the bore and the exterior surface of the carrier. The bore and couplings are offset from a central axis of the carrier (the axis of the cylindrical outer surface of the carrier), resulting in a thicker portion of the carrier wall on one side of the carrier. Cavities are formed (e.g., by drilling holes) within the thicker portion of the carrier wall. One or more sensors and corresponding electronics are then positioned within the cavities, so that the carrier wall itself forms a housing for the sensors and electronics.Type: ApplicationFiled: December 16, 2020Publication date: June 16, 2022Inventors: Yuh Loh, Thomas McClain Scott, James Joseph Freeman, John Raggio, Lorn Rendall
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Publication number: 20220186610Abstract: A compact instrumented downhole coupling that includes a carrier and a set of sensors and electronics that are installed within the carrier. The carrier is a tubular structure having couplings at each end and a bore therethrough, where cavities are formed in the carrier wall. The cavities are open to a side facing away from the carrier's bore, where sensors placed in the cavities are accessible through the side opening. Electrical connections to the sensors are made via the side opening, and a clamp can be installed in the cavities via the side opening, the clamp holding the sensors securely in position within the cavities. After installation of the sensors in the cavities, plates are welded over the side opening to form an enclosure for the sensors in the carrier wall.Type: ApplicationFiled: December 16, 2021Publication date: June 16, 2022Inventors: Yuh Loh, John Raggio, Lorn Rendall
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Patent number: 11105165Abstract: An embodiment of a downhole device includes an elongated body configured to be deployed in a borehole in an earth formation, the borehole including a borehole fluid. The device also includes a propulsion system attached to the body and configured to move the device through the borehole. The propulsion system includes one or more rotor blades configured to generate thrust using the borehole fluid. At least part of the one or more rotor blades is disposed external to the elongated body.Type: GrantFiled: November 1, 2019Date of Patent: August 31, 2021Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Zhi Yong He, Yuh Loh, Jason M. Harper, Ronnie Russell, Do Seo Park