Patents by Inventor Xichang Zhang
Xichang Zhang 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: 20240093563Abstract: A wellbore system includes a hanger lock energizing ring, a hanger lock ring, and a shoulder ring. The wellbore system further includes a seal energizing ring coupled to the shoulder ring. The wellbore system also includes a seal element being driven into an energized position by the seal energizing ring. The wellbore system further includes a seal lock energizing ring being driven to move via one or more extensions. The wellbore system includes a seal lock ring being supported, at least in part, by the seal energizing ring. Both the hanger lock ring and the seal lock ring are set, substantially simultaneously, responsive to movement of the one or more extensions.Type: ApplicationFiled: November 27, 2023Publication date: March 21, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Prashant Patel, Xichang Zhang
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Publication number: 20240084662Abstract: A wellhead annulus packoff and an associated method of energizing and de-energizing are disclosed. The wellhead annulus packoff includes at least one seal element, a hanger lockdown ring, a hanger lockdown energizing ring, a seal lockdown ring, a seal lockdown energizing ring, and one or more mechanical conditional operators, where the at least one seal element adapted to be energized with a first energizing force applied through a seal lockdown energizing ring and with the one or more mechanical conditional operators being engaged, where the seal lockdown ring is adapted to be energized with the first energizing force and with the one or more mechanical conditional operators being disengaged, and where the hanger lockdown ring is adapted to be energized with a second energizing force applied through a hanger lockdown energizing ring.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Xichang Zhang, Prashant Patel
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Patent number: 11851972Abstract: A wellhead annulus packoff and an associated method of energizing and de-energizing are disclosed. The wellhead annulus packoff includes at least one seal element, a hanger lockdown ring, a hanger lockdown energizing ring, a seal lockdown ring, a seal lockdown energizing ring, and one or more mechanical conditional operators, where the at least one seal element adapted to be energized with a first energizing force applied through a seal lockdown energizing ring and with the one or more mechanical conditional operators being engaged, where the seal lockdown ring is adapted to be energized with the first energizing force and with the one or more mechanical conditional operators being disengaged, and where the hanger lockdown ring is adapted to be energized with a second energizing force applied through a hanger lockdown energizing ring.Type: GrantFiled: November 10, 2021Date of Patent: December 26, 2023Assignee: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Xichang Zhang, Prashant Patel
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Patent number: 11851971Abstract: A wellbore system includes a hanger lock energizing ring, a hanger lock ring, and a shoulder ring. The wellbore system further includes a seal energizing ring coupled to the shoulder ring. The wellbore system also includes a seal element being driven into an energized position by the seal energizing ring. The wellbore system further includes a seal lock energizing ring being driven to move via one or more extensions. The wellbore system includes a seal lock ring being supported, at least in part, by the seal energizing ring. Both the hanger lock ring and the seal lock ring are set, substantially simultaneously, responsive to movement of the one or more extensions.Type: GrantFiled: October 29, 2021Date of Patent: December 26, 2023Assignee: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Prashant Patel, Xichang Zhang
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Publication number: 20230295997Abstract: A wellhead annulus packoff and an associated method is disclosed. A retainer lock mechanism of the wellhead annulus packoff is to sit at least partly within a first indentation of a hanger. The retainer lock mechanism includes a bottom surface and a side surface so that the bottom surface is to be associated with a lower energizing ring and the side surface is to be engaged in an energized state with a first side of the seal element. A second side of the seal element is to abut with a surface of a housing and a slot of the seal element is to abut with the lower energizing ring in the energized state of the wellhead annulus packoff.Type: ApplicationFiled: March 23, 2023Publication date: September 21, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Prashant Patel, Xichang Zhang
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Patent number: 11649689Abstract: A wellhead annulus packoff and an associated method is disclosed. A retainer lock mechanism of the wellhead annulus packoff is to sit at least partly within a first indentation of a hanger. The retainer lock mechanism includes a bottom surface and a side surface so that the bottom surface is to be associated with a lower energizing ring and the side surface is to be engaged in an energized state with a first side of the seal element. A second side of the seal element is to abut with a surface of a housing and a slot of the seal element is to abut with the lower energizing ring in the energized state of the wellhead annulus packoff.Type: GrantFiled: November 10, 2021Date of Patent: May 16, 2023Assignee: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Prashant Patel, Xichang Zhang
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Publication number: 20230146842Abstract: A wellhead annulus packoff and an associated method of energizing and de-energizing are disclosed. The wellhead annulus packoff includes at least one seal element, a hanger lockdown ring, a hanger lockdown energizing ring, a seal lockdown ring, a seal lockdown energizing ring, and one or more mechanical conditional operators, where the at least one seal element adapted to be energized with a first energizing force applied through a seal lockdown energizing ring and with the one or more mechanical conditional operators being engaged, where the seal lockdown ring is adapted to be energized with the first energizing force and with the one or more mechanical conditional operators being disengaged, and where the hanger lockdown ring is adapted to be energized with a second energizing force applied through a hanger lockdown energizing ring.Type: ApplicationFiled: November 10, 2021Publication date: May 11, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Xichang Zhang, Prashant Patel
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Publication number: 20230147369Abstract: A wellhead annulus packoff and an associated method is disclosed. A retainer lock mechanism of the wellhead annulus packoff is to sit at least partly within a first indentation of a hanger. The retainer lock mechanism includes a bottom surface and a side surface so that the bottom surface is to be associated with a lower energizing ring and the side surface is to be engaged in an energized state with a first side of the seal element. A second side of the seal element is to abut with a surface of a housing and a slot of the seal element is to abut with the lower energizing ring in the energized state of the wellhead annulus packoff.Type: ApplicationFiled: November 10, 2021Publication date: May 11, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Prashant Patel, Xichang Zhang
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Publication number: 20230132558Abstract: A wellbore system includes a hanger lock energizing ring, a hanger lock ring, and a shoulder ring. The wellbore system further includes a seal energizing ring coupled to the shoulder ring. The wellbore system also includes a seal element being driven into an energized position by the seal energizing ring. The wellbore system further includes a seal lock energizing ring being driven to move via one or more extensions. The wellbore system includes a seal lock ring being supported, at least in part, by the seal energizing ring. Both the hanger lock ring and the seal lock ring are set, substantially simultaneously, responsive to movement of the one or more extensions.Type: ApplicationFiled: October 29, 2021Publication date: May 4, 2023Applicant: Baker Hughes Oilfield Operations LLCInventors: Samuel Cheng, Prashant Patel, Xichang Zhang
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Patent number: 11512799Abstract: A system for blocking rotation between a first tubular and a second tubular includes a key positioned within a recess formed in the first tubular. The system also includes a retention fastener securing the key to the first tubular, the retention fastener being arranged within an elongated aperture extending through the key. The system further includes an installation fastener moving the key from a storage configuration when in a first position to an engaged configuration when in a second position, the installation fastener having a tapered face that engages at least a portion of the key. The system also includes teeth arranged along a bottom portion of the key, proximate the second tubular, the teeth engaging the second tubular via rotation of the key about the retention fastener and blocking rotation of the first tubular relative to the second tubular in a first direction.Type: GrantFiled: July 7, 2020Date of Patent: November 29, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Joseph Pallini, Dennis R Martinchich, Matthew Lord, Alejandro Rodela, Xichang Zhang
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Patent number: 11459833Abstract: A system for blocking rotation between a first tubular and a second tubular includes a key positioned within a recess formed in the first tubular. The system also includes a retention fastener securing the key to the first tubular, the retention fastener being arranged within an elongated aperture extending through the key. The system further includes an installation fastener moving the key from a storage configuration when in a first position to an engaged configuration when in a second position, the installation fastener having a tapered face that engages at least a portion of the key. The system also includes teeth arranged along a bottom portion of the key, proximate the second tubular, the teeth engaging the second tubular via rotation of the key about the retention fastener and blocking rotation of the first tubular relative to the second tubular in a first direction.Type: GrantFiled: December 18, 2020Date of Patent: October 4, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Dennis R. Martinchich, Joseph Pallini, Micah Thomas, Alejandro Rodela, Matthew Lord, Xichang Zhang
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Publication number: 20220010629Abstract: A system for blocking rotation between a first tubular and a second tubular includes a key positioned within a recess formed in the first tubular. The system also includes a retention fastener securing the key to the first tubular, the retention fastener being arranged within an elongated aperture extending through the key. The system further includes an installation fastener moving the key from a storage configuration when in a first position to an engaged configuration when in a second position, the installation fastener having a tapered face that engages at least a portion of the key. The system also includes teeth arranged along a bottom portion of the key, proximate the second tubular, the teeth engaging the second tubular via rotation of the key about the retention fastener and blocking rotation of the first tubular relative to the second tubular in a first direction.Type: ApplicationFiled: December 18, 2020Publication date: January 13, 2022Applicant: Baker Hughes Oilfield Operations LLCInventors: Dennis R. MARTINCHICH, Joseph PALLINI, Micah THOMAS, Alejandro RODELA, Matthew LORD, Xichang ZHANG
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Publication number: 20220010895Abstract: A system for blocking rotation between a first tubular and a second tubular includes a key positioned within a recess formed in the first tubular. The system also includes a retention fastener securing the key to the first tubular, the retention fastener being arranged within an elongated aperture extending through the key. The system further includes an installation fastener moving the key from a storage configuration when in a first position to an engaged configuration when in a second position, the installation fastener having a tapered face that engages at least a portion of the key. The system also includes teeth arranged along a bottom portion of the key, proximate the second tubular, the teeth engaging the second tubular via rotation of the key about the retention fastener and blocking rotation of the first tubular relative to the second tubular in a first direction.Type: ApplicationFiled: July 7, 2020Publication date: January 13, 2022Applicant: Baker Hughes Oilfield Operations LLCInventors: Joseph PALLINI, Dennis R. MARTINCHICH, Matthew LORD, Alejandro RODELA, Xichang ZHANG
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Patent number: 10025889Abstract: A computer-implemented method is disclosed for characterizing a threaded coupling such as between two tubular members, e.g., casing segments employed in the field of oil and gas recovery. In one embodiment, a virtual model of the coupling is generated, and the virtual model is re-arranged to simulate plastic deformation of at least part of the coupling. The re-arranged model is analyzed to derive a stress/strain distribution of the coupling subject to subsequent loading, and an SAF (stress amplification factor) is determined from the analysis that reflects the effect of cyclic loading of the coupling. The method facilitates a thorough assessment of the performance of the coupling in fatigue.Type: GrantFiled: September 23, 2014Date of Patent: July 17, 2018Assignee: VETCO GRAY, LLCInventors: Micah Antonio Thomas, Jr., Jeffrey Allen Raynal, Thomas Lowell Steen, Joseph William Pallini, Xichang Zhang, Baozhi Zhu
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Patent number: 9416652Abstract: A wellhead assembly having a tubular magnetized in at least one selected location, and a sensor proximate the magnetized location that monitors a magnetic field from the magnetized location. The magnetic field changes in response to changes in mechanical stress of the magnetized location, so that signals from the sensor represent loads applied to the tubular. Analyzing the signals over time provides fatigue loading data useful for estimating structural integrity of the tubular and its fatigue life. Example tubulars include a low pressure housing, a high pressure housing, conductor pipes respectively coupled with the housings, a string of tubing, a string of casing, housing and tubing connections, housing and tubing seals, tubing hangers, tubing risers, and other underwater structural components that require fatigue monitoring, or can be monitored for fatigue.Type: GrantFiled: August 8, 2013Date of Patent: August 16, 2016Assignee: Vetco Gray Inc.Inventors: Yuri Alexeyevich Plotnikov, Teresa Chen-Keat, Yanyan Wu, Chad Eric Yates, Xichang Zhang, Li Zheng, Pinghai Yang
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Publication number: 20150127308Abstract: A computer-implemented method is disclosed for characterizing a threaded coupling such as between two tubular members, e.g., casing segments employed in the field of oil and gas recovery. In one embodiment, a virtual model of the coupling is generated, and the virtual model is re-arranged to simulate plastic deformation of at least part of the coupling. The re-arranged model is analyzed to derive a stress/strain distribution of the coupling subject to subsequent loading, and an SAF (stress amplification factor) is determined from the analysis that reflects the effect of cyclic loading of the coupling. The method facilitates a thorough assessment of the performance of the coupling in fatigue.Type: ApplicationFiled: September 23, 2014Publication date: May 7, 2015Inventors: Micah Antonio Thomas, JR., Jeffrey Allen Raynal, Thomas Lowell Steen, Joseph William Pallini, Xichang Zhang, Baozhi Zhu
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Publication number: 20150041119Abstract: A wellhead assembly having a tubular magnetized in at least one selected location, and a sensor proximate the magnetized location that monitors a magnetic field from the magnetized location. The magnetic field changes in response to changes in mechanical stress of the magnetized location, so that signals from the sensor represent loads applied to the tubular. Analyzing the signals over time provides fatigue loading data useful for estimating structural integrity of the tubular and its fatigue life. Example tubulars include a low pressure housing, a high pressure housing, conductor pipes respectively coupled with the housings, a string of tubing, a string of casing, housing and tubing connections, housing and tubing seals, tubing hangers, tubing risers, and other underwater structural components that require fatigue monitoring, or can be monitored for fatigue.Type: ApplicationFiled: August 8, 2013Publication date: February 12, 2015Applicant: Vetco Gray Inc.Inventors: Yuri Alexeyevich Plotnikov, Teresa Chen-Keat, Yanyan Wu, Chad Eric Yates, Xichang Zhang, Li Zheng, Pinghai Yang