Patents by Inventor Omid Oujani

Omid Oujani 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).

  • Patent number: 9097066
    Abstract: In subsea drilling operations, workover control systems may include deployment of an umbilical from a deepwater drilling vessel. Such an umbilical provides support functions for deepwater drilling operations. In the practice of the invention, a new method, system and apparatus may be employed to deploy the umbilical independently of the drilling riser, which provides commercial and operational advantages. That is, the umbilical may be deployed at a different time than the riser is deployed, and also without intimate close connection from the umbilical to the riser.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 4, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: John Rodney Hensley, Zachary P. Schneider, Evan P. Graybill, Thomas E. O'Donnell, Timothy Achee, Raymond Stawaisz, Trevor Munk, Omid Oujani, Thomas B. Heyward
  • Patent number: 8955595
    Abstract: An apparatus and method for providing a controllable supply of fluid, and optionally power and/or communication signals, to a subsea equipment are provided. The fluid may be a water-based fluid, oil-based fluid, or chemicals. The apparatus includes a reservoir disposed on a seabed for storing a supply of fluid for delivery to the subsea well equipment. A subsea pumping device is configured to receive the fluid from the reservoir, pressurize the fluid, and deliver the pressurized fluid to an accumulator of a hydraulic power unit disposed on the seabed. The hydraulic power unit can store the pressurized fluid and control an output of the pressurized fluid to the subsea well equipment, thereby providing a subsea fluid source for the subsea equipment.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: February 17, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Chukwuemeka U. Emecheta, Thomas E. O'Donnell, Omid Oujani, Hailing An, Baha T. Tanju, George Siappas
  • Patent number: 8353351
    Abstract: Pressure within a subsea well is managed as temperature within the well fluctuate. The management of the pressure mitigates stress to the structure of the well caused by the pressure. To manage the pressure, fluid is received from and/or provided to the well to reduce and/or increase pressure within the well.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: January 15, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Robert B. Carpenter, Omid Oujani, Krystian K. Maskos, John Lofton
  • Publication number: 20120152556
    Abstract: In subsea drilling operations, workover control systems may include deployment of an umbilical from a deepwater drilling vessel. Such an umbilical provides support functions for deepwater drilling operations. In the practice of the invention, a new method, system and apparatus may be employed to deploy the umbilical independently of the drilling riser, which provides commercial and operational advantages. That is, the umbilical may be deployed at a different time than the riser is deployed, and also without intimate close connection from the umbilical to the riser.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: John Rodney Hensley, Zachary P. Schneider, Evan P. Graybill, Thomas E. O'Donnell, Timothy Achee, Raymond Stawaisz, Trevor Munk, Omid Oujani, Thomas B. Heyward
  • Publication number: 20110284209
    Abstract: Pressure within a subsea well is managed as temperature within the well fluctuate. The management of the pressure mitigates stress to the structure of the well caused by the pressure. To manage the pressure, fluid is received from and/or provided to the well to reduce and/or increase pressure within the well.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 24, 2011
    Inventors: Robert B. Carpenter, Omid Oujani, Krystian K. Maskos, John Lofton
  • Publication number: 20110114329
    Abstract: An apparatus and method for providing a controllable supply of fluid, and optionally power and/or communication signals, to a subsea equipment are provided. The fluid may be a water-based fluid, oil-based fluid, or chemicals. The apparatus includes a reservoir disposed on a seabed for storing a supply of fluid for delivery to the subsea well equipment. A subsea pumping device is configured to receive the fluid from the reservoir, pressurize the fluid, and deliver the pressurized fluid to an accumulator of a hydraulic power unit disposed on the seabed. The hydraulic power unit can store the pressurized fluid and control an output of the pressurized fluid to the subsea well equipment, thereby providing a subsea fluid source for the subsea equipment.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 19, 2011
    Inventors: Chukwuemeka U. Emecheta, Thomas E. O'Donnell, Omid Oujani, Hailing An, Baha T. Tanju, George Siappas