Patents by Inventor Benjamin R. Orr

Benjamin R. Orr 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).

  • Apparatus and method for compensating for pressure changes within an isolated annular space of a wellbore
    Patent number: 8347969
    Abstract: Pressure relief devices comprise a chamber having a piston disposed therein. One side of the piston defines a hydrostatic chamber in fluid communication with an outside environment, such as an isolated wellbore annulus, through a port. The other side of the piston defines a sealed or isolated chamber. The pressure relief device permits changes in pressure in the isolated wellbore annulus to be distributed into the chambers so as to either reduce the pressure within the isolated wellbore annulus or increase the pressure within the wellbore annulus, both of which lessen the likelihood that the change in pressure within the isolated wellbore annulus will damage wellbore components disposed therein.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: January 8, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Benjamin R. Orr, Edward T. Wood, Aubrey C. Mills
  • Apparatus and method for compensating for pressure changes within an isolated annular space of a wellbore
    Publication number: 20120090852
    Abstract: Pressure relief devices comprise a chamber having a piston disposed therein. One side of the piston defines a hydrostatic chamber in fluid communication with an outside environment, such as an isolated wellbore annulus, through a port. The other side of the piston defines a sealed or isolated chamber. The pressure relief device permits changes in pressure in the isolated wellbore annulus to be distributed into the chambers so as to either reduce the pressure within the isolated wellbore annulus or increase the pressure within the wellbore annulus, both of which lessen the likelihood that the change in pressure within the isolated wellbore annulus will damage wellbore components disposed therein.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 19, 2012
    Inventors: Benjamin R. Orr, Edward T. Wood, Aubrey C. Mills