Patents by Inventor Edwin A. Zwald, Jr.

Edwin A. Zwald, Jr. 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 methods for drilling and lining a wellbore
    Patent number: 7823659
    Abstract: A method of drilling and lining a wellbore includes operably coupling a support member to a drilling device, an expansion cone configured to expand a tubular member, an actuator configured to pull the expansion cone through the tubular member, a releasable locking device configured to limit displacement of the tubular member relative to the actuator during actuation. The drilling device is disposed below the expansion cone and the expansion cone is disposed at a lower end of the tubular member. The method further includes locking the locking device. After locking the locking device, a wellbore is drilled to have a diameter greater than an outside diameter of the tubular member. After the drilling, the actuator is actuated to pull the expansion cone towards the locking device to expand at least a portion of the tubular member into contact with the drilled wellbore. The method further includes releasing the locking device and removing the drilling device through the expanded tubular member.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: November 2, 2010
    Assignee: Enventure Global Technology, LLC
    Inventors: Darrell Scott Costa, Kevin K. Waddell, Edwin A. Zwald, Jr., Charles Butterfield, Mark Holland, Akindele Olufowoshe, Gregory M. Noel, Donald B. Campo
  • Apparatus and Methods for Drilling and Lining a Wellbore
    Publication number: 20090014172
    Abstract: A method of drilling and lining a wellbore includes operably coupling a support member to a drilling device, an expansion cone configured to expand a tubular member, an actuator configured to pull the expansion cone through the tubular member, a releasable locking device configured to limit displacement of the tubular member relative to the actuator during actuation. The drilling device is disposed below the expansion cone and the expansion cone is disposed at a lower end of the tubular member. The method further includes locking the locking device. After locking the locking device, a wellbore is drilled to have a diameter greater than an outside diameter of the tubular member. After the drilling, the actuator is actuated to pull the expansion cone towards the locking device to expand at least a portion of the tubular member into contact with the drilled wellbore. The method further includes releasing the locking device and removing the drilling device through the expanded tubular member.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 15, 2009
    Applicant: Enventure Global Technology, LLC
    Inventors: Darrell Scott Costa, Kevin K. Waddell, Edwin A. Zwald, JR., Charles Butterfield, Mark Holland, Akindele Olufowoshe, Gregory M. Noel, Donald B. Campo
  • Method and apparatus for forming a mono-diameter wellbore casing
    Patent number: 7325602
    Abstract: A mono-diameter wellbore casing. The mono-diameter wellbore casing is formed by plastically deforming and radially expanding a first tubular member within a wellbore. A second tubular member is then plastically deformed and radially expanded in overlapping relation to the first tubular member. The second tubular member and the overlapping portion of the first tubular member are then radially expanded again.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: February 5, 2008
    Assignee: Shell Oil Company
    Inventors: Robert Lance Cook, Lev Ring, Edwin A. Zwald, Jr., Andrei Gregory Filippov, Kevin K. Waddell
  • Mono-diameter wellbore casing
    Patent number: 7100685
    Abstract: A mono-diameter wellbore casing. The mono-diameter wellbore casing is formed by plastically deforming and radially expanding a first tubular member within a wellbore. A second tubular member is then plastically deformed and radially expanded in overlapping relation to the first tubular member. The second tubular member and the overlapping portion of the first tubular member are then radially expanded again.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: September 5, 2006
    Assignee: Enventure Global Technology
    Inventors: Robert Lance Cook, Lev Ring, Edwin A. Zwald, Jr., Andrei Gregory Filippov, Kevin K. Waddell