Patents by Inventor Mitchell G. Willcox

Mitchell G. Willcox 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: 6564876
    Abstract: A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: May 20, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Vladimir Vaynshteyn, James D. Hendrickson, Jim B. Benton, Raghu Madhaven, Mitchell G. Willcox, Dinesh R. Patel
  • Patent number: 6315050
    Abstract: A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: November 13, 2001
    Assignee: Schlumberger Technology Corp.
    Inventors: Vladimir Vaynshteyn, James D. Hendrickson, Jim B. Benton, Raghu Madhavan, Mitchell G. Willcox, Dinesh R. Patel
  • Publication number: 20010015277
    Abstract: A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 23, 2001
    Inventors: Vladimir Vaynshteyn, James D. Hendrickson, Jim B. Benton, Raghu Madhavan, Mitchell G. Willcox, Dinesh R. Patel
  • Publication number: 20010002621
    Abstract: A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.
    Type: Application
    Filed: February 9, 2001
    Publication date: June 7, 2001
    Inventors: Vladimir Vaynshteyn, James D. Hendrickson, Jim B. Benton, Raghu Madhavan, Mitchell G. Willcox, Dinesh R. Patel
  • Patent number: 6186227
    Abstract: A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: February 13, 2001
    Assignee: Schlumberger Technology Corporation
    Inventors: Vladimir Vaynshteyn, James D. Hendrickson, Jim B. Benton, Raghu Madhavan, Mitchell G. Willcox, Dinesh R. Patel