Patents by Inventor Greg Dunn
Greg Dunn 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: 20240102350Abstract: An annular seal system for sealing between a casing hanger and a wellhead housing, the system including an actuator ring having a rigid portion and a flexible portion, and a lockdown ring positioned adjacent the actuator ring. The annular seal system further includes a seal assembly capable of moving between a de-energized position and an energized position, wherein the seal assembly in the de-energized position has a defined a space between the seal assembly and the rigid portion of the actuator ring, wherein the seal assembly in the energized position has the space closed, wherein the rigid portion of the actuator ring is to contact a surface of the casing hanger, wherein the flexible portion of the actuator ring is to push the lockdown ring into engagement with the wellhead, and wherein the flexible portion of the actuator ring adapted is to axially compress to allow positional variation between the lockdown ring and the wellhead housing.Type: ApplicationFiled: December 4, 2023Publication date: March 28, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel H Cheng, Greg Dunn, Daryl Attaway, Joseph Pallini, Amini Shakib
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Patent number: 11867018Abstract: An annular seal system for sealing between a casing hanger and a wellhead housing, the system including an actuator ring having a rigid portion and a flexible portion, and a lockdown ring positioned adjacent the actuator ring. The annular seal system further includes a seal assembly capable of moving between a de-energized position and an energized position, wherein the seal assembly in the de-energized position has a defined a space between the seal assembly and the rigid portion of the actuator ring, wherein the seal assembly in the energized position has the space closed, wherein the rigid portion of the actuator ring is to contact a surface of the casing hanger, wherein the flexible portion of the actuator ring is to push the lockdown ring into engagement with the wellhead, and wherein the flexible portion of the actuator ring adapted is to axially compress to allow positional variation between the lockdown ring and the wellhead housing.Type: GrantFiled: August 19, 2022Date of Patent: January 9, 2024Assignee: Baker Hughes Oilfield Operations LLCInventors: Samuel H. Cheng, Greg Dunn, Daryl Attaway, Joseph Pallini, Amini Shakib
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Publication number: 20220389782Abstract: An annular seal system for sealing between a casing hanger and a wellhead housing, the system including an actuator ring having a rigid portion and a flexible portion, and a lockdown ring positioned adjacent the actuator ring. The annular seal system further includes a seal assembly capable of moving between a de-energized position and an energized position, wherein the seal assembly in the de-energized position has a defined a space between the seal assembly and the rigid portion of the actuator ring, wherein the seal assembly in the energized position has the space closed, wherein the rigid portion of the actuator ring is to contact a surface of the casing hanger, wherein the flexible portion of the actuator ring is to push the lockdown ring into engagement with the wellhead, and wherein the flexible portion of the actuator ring adapted is to axially compress to allow positional variation between the lockdown ring and the wellhead housing.Type: ApplicationFiled: August 19, 2022Publication date: December 8, 2022Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel H. Cheng, Greg Dunn, Daryl Attaway, Joseph Pallini, Amini Shakib
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Patent number: 11492865Abstract: An annular seal system for sealing between a casing hanger and a wellhead housing, the system including an actuator ring having a rigid portion and a flexible portion, and a lockdown ring positioned adjacent the actuator ring. The annular seal system further includes a seal assembly capable of moving from a de-energized position to an energized position, wherein when the seal assembly is in the de-energized position there is defined a space between the seal assembly and the rigid portion of the actuator ring, and when the seal assembly is in the energized position the space is closed, the rigid portion of the actuator ring contacts a surface of the casing hanger, and the flexible portion of the actuator ring pushes the lockdown ring into engagement with the wellhead, the flexible portion of the actuator ring adapted to axially compress to allow positional variation between the lockdown ring and the wellhead housing.Type: GrantFiled: August 28, 2019Date of Patent: November 8, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Samuel H Cheng, Greg Dunn, Daryl Attaway, Joseph Pallini, Amini Shakib
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Publication number: 20210095535Abstract: A system for rigid locking of components in a wellhead assembly is also disclosed. The system includes a wellhead housing, a hanger, a lockdown ring, and an actuating member. The lockdown ring has a first lockdown ring surface with lockdown ring stepped tapers. The actuating member has a first actuating member surface with actuating member stepped tapers that correspond to the lockdown ring stepped tapers. The lockdown ring stepped tapers and the actuator ring stepped tapers are configured to mate when positioned between the wellhead housing and the hanger.Type: ApplicationFiled: September 26, 2019Publication date: April 1, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel H. Cheng, Greg Dunn, Daryl Attaway
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Patent number: 10947804Abstract: A system is disclosed as including a seal for sealing an area between a hanger and a housing of a wellhead. The seal is provided with at least a notch that defines at least a movable portion such as a wing or a lip. An e-ring is provided for a first energizing of the seal. The movable portion enables pressurized fluid from beneath the seal to cause the movable portion to protrude further against a mating side in the wellhead and the hanger for a second energizing of the seal. This type of seal maintains or improves the sealing of the wellhead in high pressure applications. Methods applied to the above seal are also disclosed.Type: GrantFiled: April 5, 2019Date of Patent: March 16, 2021Assignee: Vetco Gray, LLCInventors: Andrew Ingram, Greg Dunn, Alejandro Martinez, Ronnie Hampton, Joseph Pallini
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Publication number: 20210062603Abstract: An annular seal system for sealing between a casing hanger and a wellhead housing, the system including an actuator ring having a rigid portion and a flexible portion, and a lockdown ring positioned adjacent the actuator ring. The annular seal system further includes a seal assembly capable of moving from a de-energized position to an energized position, wherein when the seal assembly is in the de-energized position there is defined a space between the seal assembly and the rigid portion of the actuator ring, and when the seal assembly is in the energized position the space is closed, the rigid portion of the actuator ring contacts a surface of the casing hanger, and the flexible portion of the actuator ring pushes the lockdown ring into engagement with the wellhead, the flexible portion of the actuator ring adapted to axially compress to allow positional variation between the lockdown ring and the wellhead housing.Type: ApplicationFiled: August 28, 2019Publication date: March 4, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel H. Cheng, Greg Dunn, Daryl Attaway, Joseph Pallini, Amini Shakib
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Patent number: 10844687Abstract: An annulus seal for sealing an interface between a wellhead housing and a casing hanger. The annulus seal includes a central body portion, a first seal leg extending from the central body portion in a first direction and a second seal leg extending from the central body portion in the first direction across from the first seal leg. The first seal leg sealingly engages the casing hanger, and the second seal leg sealingly engages the wellhead housing. At least one of the first seal leg or the second seal leg includes at least one of a first cavity at least partially extending into the respective seal leg from the first direction or a second cavity at least partially extending into the respective seal leg from the second direction.Type: GrantFiled: April 8, 2019Date of Patent: November 24, 2020Assignee: GE Oil & Gas Pressure Control LPInventors: Alejandro Rodela, Joseph Pallini, Andrew Ingram, Greg Dunn
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Publication number: 20190309593Abstract: A system is disclosed as including a seal for sealing an area between a hanger and a housing of a wellhead. The seal is provided with at least a notch that defines at least a movable portion such as a wing or a lip. An e-ring is provided for a first energizing of the seal. The movable portion enables pressurized fluid from beneath the seal to cause the movable portion to protrude further against a mating side in the wellhead and the hanger for a second energizing of the seal. This type of seal maintains or improves the sealing of the wellhead in high pressure applications. Methods applied to the above seal are also disclosed.Type: ApplicationFiled: April 5, 2019Publication date: October 10, 2019Applicant: Vetco Gray, LLCInventors: Andrew Ingram, Greg Dunn, Alejandro Martinez, Ronnie Hampton, Joseph Pallini
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Publication number: 20190309594Abstract: An annulus seal for sealing an interface between a wellhead housing and a casing hanger. The annulus seal includes a central body portion, a first seal leg extending from the central body portion in a first direction and a second seal leg extending from the central body portion in the first direction across from the first seal leg. The first seal leg sealingly engages the casing hanger, and the second seal leg sealingly engages the wellhead housing. At least one of the first seal leg or the second seal leg includes at least one of a first cavity at least partially extending into the respective seal leg from the first direction or a second cavity at least partially extending into the respective seal leg from the second direction.Type: ApplicationFiled: April 8, 2019Publication date: October 10, 2019Applicant: GE Oil & Gas Pressure Control LPInventors: Alejandro Rodela, Joseph Pallini, Andrew Ingram, Greg Dunn