Patents by Inventor David R. Gwyn

David R. Gwyn 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).

  • Function spool
    Patent number: 8695713
    Abstract: A production assembly and method for controlling production from production tubing supported by a tubing hanger in a well including a wellhead. The assembly includes a function spool engaged with the wellhead and a tree engaged with the function spool. The tubing hanger is landable in the tree bore such that the production tubing is supported in the well by the tree. A function mandrel separate from the tubing hanger is engaged with the production tubing and positionable inside the function spool bore. The function mandrel includes a passage connected to a line extending into the well that is connectable with a port in the function spool such that communication with a downhole component through the line is allowable from outside the function spool.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: April 15, 2014
    Assignee: Cameron International Corporation
    Inventors: David R. June, David R. Gwyn
  • Function Spool
    Publication number: 20130248200
    Abstract: A production assembly and method for controlling production from production tubing supported by a tubing hanger in a well including a wellhead. The assembly includes a function spool engaged with the wellhead and a tree engaged with the function spool. The tubing hanger is landable in the tree bore such that the production tubing is supported in the well by the tree. A function mandrel separate from the tubing hanger is engaged with the production tubing and positionable inside the function spool bore. The function mandrel includes a passage connected to a line extending into the well that is connectable with a port in the function spool such that communication with a downhole component through the line is allowable from outside the function spool.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Inventors: David R. June, David R. Gwyn
  • Function spool
    Patent number: 8443899
    Abstract: A production assembly and method for controlling production from production tubing supported by a tubing hanger in a well including a wellhead. The assembly includes a function spool engaged with the wellhead and a tree engaged with the function spool. The tubing hanger is landable in the tree bore such that the production tubing is supported in the well by the tree. A function mandrel separate from the tubing hanger is engaged with the production tubing and positionable inside the function spool bore. The function mandrel includes a passage connected to a line extending into the well that is connectable with a port in the function spool such that communication with a downhole component through the line is allowable from outside the function spool.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: May 21, 2013
    Assignee: Cameron International Corporation
    Inventors: David R. June, David R. Gwyn
  • Subsea completion with a wellhead annulus access adapter
    Patent number: 8316946
    Abstract: A subsea completion assembly for a subsea well including installed casing and a wellhead. The assembly includes a production casing forming a B annulus between the outside of the production casing and the installed casing. The assembly also includes an annulus access adapter installed in the wellhead, the adapter including a manipulatable valve controlling fluid communication with the fluid in the B annulus across the annulus access adapter. A property of the fluid in the B annulus can be monitored by fluid communicated across the annulus access adapter.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 27, 2012
    Assignee: Cameron International Corporation
    Inventors: David R. June, Scott D. Ward, David R. Gwyn
  • Function Spool
    Publication number: 20100294492
    Abstract: A production assembly and method for controlling production from production tubing supported by a tubing hanger in a well including a wellhead. The assembly includes a function spool engaged with the wellhead and a tree engaged with the function spool. The tubing hanger is landable in the tree bore such that the production tubing is supported in the well by the tree. A function mandrel separate from the tubing hanger is engaged with the production tubing and positionable inside the function spool bore. The function mandrel includes a passage connected to a line extending into the well that is connectable with a port in the function spool such that communication with a downhole component through the line is allowable from outside the function spool.
    Type: Application
    Filed: December 12, 2008
    Publication date: November 25, 2010
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: David R. June, David R. Gwyn
  • Subsea Completion with a Wellhead Annulus Access Adapter
    Publication number: 20100101800
    Abstract: A subsea completion assembly for a subsea well including installed casing and a wellhead. The assembly includes a production casing forming a B annulus between the outside of the production casing and the installed casing. The assembly also includes an annulus access adapter installed in the wellhead, the adapter including a manipulatable valve controlling fluid communication with the fluid in the B annulus across the annulus access adapter. A property of the fluid in the B annulus can be monitored by fluid communicated across the annulus access adapter.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: David R. June, Scott D. Ward, David R. Gwyn