Patents by Inventor Steven W. COCHRAN

Steven W. COCHRAN 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).

  • Publication number: 20210230976
    Abstract: Disclosed are systems and methods for thermal management of subsea jumpers that provide the ability to cool and/or retain heat in production fluids within the jumpers. The jumpers are provided with an annular pipe section surrounding the jumper circumferentially. The flow of a liquid cooling medium into an inlet and out an outlet of the annular pipe section can be controlled to provide cooling or heat retention as needed. A control system can be used to generate an alarm based on fluid temperature and/or fluid flow rate within the jumper indicating the need to adjust the flow of the cooling medium to manage the temperature of fluids within the jumper. Changes may be needed particularly depending on the phase of production, e.g., early life, normal operation, shut down and late life operation.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 29, 2021
    Applicant: Chevron U.S.A. Inc.
    Inventors: Antonio C.F. CRITSINELIS, Sid MEBARKIA, Michelle A. WISE, Yesudas J. MANIMALA, William C. HUGHES, Steven W. COCHRAN, Edgar URIBE, Jason D. GARCIA
  • Publication number: 20210230975
    Abstract: Disclosed are systems and methods for thermal management of subsea conduits such as jumpers that provide the ability to alternate between cooling and heat retention of production fluids within the conduit as needed depending on the phase of operation. Adjustable insulation elements are provided on the conduits so that convective heat transfer between surrounding seawater and the conduit can be allowed or reduced. A control system can activate an alarm indicating the need to adjust the insulation depending on the temperature and/or flow rate of fluids in the conduit. Conventional conduits can be retrofitted by adding adjustable insulation elements to enable thermal management.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 29, 2021
    Applicant: Chevron U.S.A. Inc.
    Inventors: Antonio C.F. CRITSINELIS, Sid MEBARKIA, Michelle A. WISE, Yesudas J. MANIMALA, William C. HUGHES, Steven W. COCHRAN, Edgar URIBE, Jason D. GARCIA
  • Publication number: 20210231249
    Abstract: Disclosed are systems and methods for thermal management of subsea interconnecting conduit such as jumpers that provide cooling and heat retention of production fluids within the jumpers. In a jumper circuit, parallel sections of jumper are provided having differing amounts of heat transfer between surrounding seawater and production fluids flowing within. Valving is provided to control fluid flow between the parallel sections of jumper, thus controlling the amount of heat transfer between the surrounding seawater and the jumper circuit. A control system can be used to generate an alarm based on fluid temperature and/or fluid flow rate within the jumper circuit indicating the need to adjust the valving to manage the temperature of fluids within the jumper circuit. Changes may be needed particularly depending on the phase of production, e.g., early life, normal operation, shut down and late life operation.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 29, 2021
    Applicant: Chevron U.S.A. Inc.
    Inventors: Antonio C.F. CRITSINELIS, Sid MEBARKIA, Michelle A. WISE, Yesudas J. MANIMALA, William C. HUGHES, Steven W. COCHRAN, Edgar URIBE, Jason D. GARCIA
  • Publication number: 20210231250
    Abstract: Disclosed are systems and methods for thermal management of subsea conduits. A jumper that carries oil and/or gas produced from a subsea well in a subsea production facility located on a seabed has a first end for connecting to a first subsea component and a second end for connecting to a second subsea component. The jumper includes a jumper segment that is sloped relative to the horizontal, such that gravity assists with drainage of fluid from the second end of the jumper independent from fluid pressure in the jumper. At least a portion of the jumper is uninsulated to allow exchange of heat with seawater surrounding the jumper as produced fluid travels through the jumper. The amount of insulation on the jumper can be varied such that heat transfer from the production fluids to seawater surrounding the jumper circuit is adjusted as desired.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 29, 2021
    Applicant: Chevron U.S.A. Inc.
    Inventors: Antonio C.F. Critsinelis, Sid MEBARKIA, Michelle A. WISE, Yesudas J. MANIMALA, William C. HUGHES, Steven W. COCHRAN, Edgar URIBE, Jason D. GARCIA