Patents by Inventor Paul David Metcalfe

Paul David Metcalfe 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).

  • Publication number: 20020189818
    Abstract: A tubing coupling method is provided. In one aspect, the method comprises providing a length of expandable tubing and a length of larger diameter non-expanding tubing, connecting an end portion of the expandable tubing to an end portion of the non-expanding tubing, running the tubing into a bore, and expanding the expandable tubing. The expandable tubing may form part of an expandable well or sand screen, or may be an expandable bore liner.
    Type: Application
    Filed: August 9, 2002
    Publication date: December 19, 2002
    Applicant: Weatherford/Lamb, Inc.
    Inventor: Paul David Metcalfe
  • Publication number: 20020166668
    Abstract: A method of installing a liner in a drilled bore below a question of bore previously lined with casing comprises the steps of: running a length of liner into the bore such that at least an upper end of the liner in positioned in overlapping relation with at least a lower end of the casing; and plastically deforming a portion of the liner such that an external face of the portion forms an interference fit with an internal face of a portion of the casing. The interference fit preferably provides both hanging support for the liner and a fluid-tight seal between the liner and casing.
    Type: Application
    Filed: December 22, 1999
    Publication date: November 14, 2002
    Inventors: PAUL DAVID METCALFE, NEIL ANDREW ABERCROMBIE SIMPSON
  • Publication number: 20020145281
    Abstract: A method of isolating a section of downhole tubing comprises: running a length of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at least portions of the expandable tubing (32, 40) to increase the diameter of the portions to sealingly engage the tubing (14) and to isolate the tubing section.
    Type: Application
    Filed: December 22, 1999
    Publication date: October 10, 2002
    Inventors: PAUL DAVID METCALFE, NEIL ANDREW ABERCROMBIE SIMPSON
  • Patent number: 6457533
    Abstract: There is provided a downhole tubing sealing system (10) comprising a radially expandable slotted tubular body (16) carrying deformable material (22) on the exterior thereof; and a seal member (26) for location within the tubular body and for engaging an inner surface of said body. There is further provided a method of sealing a portion of a downhole bore, the method comprising locating a radially expandable slotted tubular body (16) carrying deformable material (22) on the exterior thereof in a bore, expanding the body radially into contact with the bore wall, and locating a seal member (26) within the body and radially extending the seal member to engage an inner surface of the body, so sealing portion of the downhole bore.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: October 1, 2002
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Paul David Metcalfe
  • Patent number: 6454013
    Abstract: A tubing coupling method comprises the steps: providing a length of expandable tubing (72) and a length of larger diameter non-expanding tubing (74); connecting an end portion of the expandable tubing (72) to an end portion of the non-expanding tubing (74) with a portion of expandable tubing (76); running the tubing (72, 74, 76) into a bore; and expanding the expandable tubing (72, 76). The expandable tubing (72) may form part of an expandable well or sand screen, or may be expandable bore liner (12).
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: September 24, 2002
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Paul David Metcalfe
  • Patent number: 6446323
    Abstract: A method of forming a profile (10) in a section of tubing (12) comprises: providing an expander device (14) having at least one radially extendable expander member (22); positioning the device (14) at a predetermined location in the tubing (12); and extending the member (22) to deform the tubing (12) to create a profile (10).
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: September 10, 2002
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Paul David Metcalfe, Neil Andrew Abercrombie Simpson
  • Publication number: 20020112338
    Abstract: A method of forming a profile (10) in a section of tubing (12) comprises; providing an expander device (14) having at least one radially extendable expander member (22), positioning the device (14) at a predetermined location in the tubing (12); and extending the member (22) to deform the tubing (12) to create a profile (10).
    Type: Application
    Filed: December 22, 1999
    Publication date: August 22, 2002
    Inventors: PAUL DAVID METCALFE, NEIL ANDREW ABECROMBIE SIMPSON
  • Publication number: 20020108756
    Abstract: A downhole apparatus comprises a plurality of tubing sections. Each tubing section has substantially cylindrical portions initially of a first diameter for coupling to end portions of adjacent tubing sections. The end portions are expandable to a larger second diameter. Each tubing section also has an intermediate folded wall portions initially in a folded configuration. The intermediate folded wall portions are unfoldable to define a substantially cylindrical form of a third diameter.
    Type: Application
    Filed: October 25, 2001
    Publication date: August 15, 2002
    Inventors: Simon John Harrall, Paul David Metcalfe, Frederick T. Tilton
  • Patent number: 6425444
    Abstract: A method of providing a downhole seal, such as a packer (12), in a drilled bore between inner tubing (11) and outer tubing (16) comprises: providing an intermediate tubing section (18) defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming the intermediate tubing section downhole to form an annular extension (40a, 40b). The extension creates a sealing contact with the outer tubing (16).
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: July 30, 2002
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Paul David Metcalfe, Neil Andrew Abercrombie Simpson
  • Publication number: 20020060079
    Abstract: A method of providing a downhole seal, such as a packer (12), in a drilled bore between inner tubing (11) and outer tubing (16) comprises: providing an intermediate tubing section (18) defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming the intermediate tubing section downhole to form an annular extension (40a, 40b). The extension creates a sealing contact with the outer tubing (16).
    Type: Application
    Filed: December 22, 1999
    Publication date: May 23, 2002
    Inventors: PAUL DAVID METCALFE, NEIL ANDREW A. SIMPSON
  • Publication number: 20020033261
    Abstract: Apparatus (10) for facilitating coupling and cementing of downhole tubulars (12, 28) comprises a tubing section (12, 10) for use in lining a bore. The tubing section has upper and lower ends and defines a tubing wall having cement outlets (20) spaced from the lower end of the tubing. The lower end of the tubing is selectively closed, and swab cups (22) are provided externally of the lower end of the tubing below the cement outlets (20) for restricting passage of cement.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 21, 2002
    Inventor: Paul David Metcalfe
  • Patent number: 6322109
    Abstract: A tubing connector for joining the ends of two lengths of expandable tubing including two expandable tubular portions for mounting on the ends of the lengths of expandable tubing. Each portion includes a plurality of circumferentially spaced couplings for engaging corresponding couplings on the other portion. The engaging parts of the couplings are located on parts of the tubular portions which define an upset following expansion.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: November 27, 2001
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Alasdair Campbell, Paul David Metcalfe
  • Patent number: 6065500
    Abstract: Expandable tubing, as utilized in downhole applications in the oil and gas exploration and extraction industries, includes tubing having a wall with a multiplicity of overlapping longitudinally extending slots therein. The slots have end portions and at least some of the slots are wider at at least one end portion.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 23, 2000
    Assignee: Petroline Wellsystems Limited
    Inventor: Paul David Metcalfe
  • Patent number: 6012523
    Abstract: Downhole apparatus is disclosed for use in expanding liner or tubing. The apparatus comprises a body for connection to a string and an expansion portion on the body. The expansion portion includes a plurality of radially movable parts for defining an outer surface thereof. The parts are initially arranged in an axially and circumferentially offset first configuration in which the parts may assume a smaller diameter first configuration. The apparatus is then run Into a borehole and through a length of expandable tubing. The parts are the moved radially outwardly and axially aligned such that the parts assume a larger diameter second configuration and define a substantially continuous outer circumference. The expansion portion is then pulled through the tubing to expand the tubing.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: January 11, 2000
    Assignee: Petroline Wellsystems Limited
    Inventors: Alasdair Campbell, Paul David Metcalfe, Brian Scott