Patents by Inventor Gregory Daniel

Gregory Daniel 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).

  • System and methodology using annulus access valve
    Patent number: 10161244
    Abstract: A technique facilitates pressure testing of seals along a tubing hanger, such as a tubing hanger used in a subsea application. In some applications, the tubing hanger is sealed along its exterior with an upper tubing hanger seal and a lower tubing hanger seal. A valve assembly is deployed along a fluid passageway which is routed to the tubing hanger seals. The valve assembly may be selectively actuated to a test position, e.g. a closed position, which enables pressure isolation and pressure testing of the tubing hanger seals. The valve assembly may also be selectively utilized to introduce fluids into the formation below the tubing hanger.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: December 25, 2018
    Assignee: Schlumberger Technology Corporation
    Inventors: Nicholas Taylor, Gregory Daniel, Boris Martinez
  • SYSTEM AND METHODOLOGY USING ANNULUS ACCESS VALVE
    Publication number: 20170183956
    Abstract: A technique facilitates pressure testing of seals along a tubing hanger, such as a tubing hanger used in a subsea application. In some applications, the tubing hanger is sealed along its exterior with an upper tubing hanger seal and a lower tubing hanger seal. A valve assembly is deployed along a fluid passageway which is routed to the tubing hanger seals. The valve assembly may be selectively actuated to a test position, e.g. a closed position, which enables pressure isolation and pressure testing of the tubing hanger seals. The valve assembly may also be selectively utilized to introduce fluids into the formation below the tubing hanger.
    Type: Application
    Filed: June 8, 2015
    Publication date: June 29, 2017
    Inventors: Nicholas TAYLOR, Gregory DANIEL, Boris MARTINEZ
  • Diverter valve
    Patent number: 8066071
    Abstract: Apparatus for multi-zone wellbores that can by-pass upper hydrocarbon bearing zones and deliver fluid to lower hydrocarbon bearing zones. The apparatus can include at least one housing, and at least one port can be formed through the housing. An inner sleeve can be positioned within the housing. At least one cavity can be radially disposed on an outer diameter of the inner sleeve, and each cavity can be located within an annulus formed between the inner sleeve and the housing. A ball can be disposed within each cavity, and the ball can be adapted to selectively engage the port.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: November 29, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Ashish Sharma, Gregory Daniel, Barry Scott Stringfield, Robert Krush
  • DIVERTER VALVE
    Publication number: 20090114393
    Abstract: Apparatus for multi-zone wellbores that can by-pass upper hydrocarbon bearing zones and deliver fluid to lower hydrocarbon bearing zones. The apparatus can include at least one housing, and at least one port can be formed through the housing. An inner sleeve can be positioned within the housing. At least one cavity can be radially disposed on an outer diameter of the inner sleeve, and each cavity can be located within an annulus formed between the inner sleeve and the housing. A ball can be disposed within each cavity, and the ball can be adapted to selectively engage the port.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 7, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ashish Sharma, Gregory Daniel, Barry Scott Stringfield, Robert Krush