Patents by Inventor Colin McHardy
Colin McHardy 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).
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Patent number: 8136216Abstract: A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first expandable tubing section defining a male portion; a second expandable tubing section defining a female portion, the first and second expandable tubing sections being engageable with one another; one of the first and second expandable tubing sections including a restraining member for restraining part of the other expandable tubing section; and the first expandable tubing section including a tapered shoulder for co-operating with a corresponding tapered shoulder of the second expandable tubing section.Type: GrantFiled: July 14, 2009Date of Patent: March 20, 2012Assignee: Weatherford/Lamb, Inc.Inventors: Jason David Evans, Martin William Geddes, Colin McHardy, Wayne Rudd
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Patent number: 8028749Abstract: Apparatus for expanding first and second portions of a downhole tubular in a single trip comprises a support and first and second expansion devices. The first expansion device is mounted on the support and is operable to expand a first portion of tubular. The second expansion device is mounted to a second portion of tubular and is adapted to be engaged by the support following the expansion of the first portion of tubular, and is then used to expand the second portion of tubular.Type: GrantFiled: May 28, 2010Date of Patent: October 4, 2011Assignee: Weatherford/Lamb, Inc.Inventors: Colin McHardy, Simon John Harrall
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Patent number: 8006771Abstract: Methods relate to tubulars that may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.Type: GrantFiled: May 15, 2009Date of Patent: August 30, 2011Assignee: Weatherford/Lamb, Inc.Inventors: Annabel Green, Lev Ring, Colin McHardy, Simon Harrall, Gary Johnston, Neil A. A. Simpson
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Publication number: 20100236792Abstract: Apparatus for expanding first and second portions of a downhole tubular in a single trip comprises a support and first and second expansion devices. The first expansion device is mounted on the support and is operable to expand a first portion of tubular. The second expansion device is mounted to a second portion of tubular and is adapted to be engaged by the support following the expansion of the first portion of tubular, and is then used to expand the second portion of tubular.Type: ApplicationFiled: May 28, 2010Publication date: September 23, 2010Inventors: Colin McHardy, Simon John Harrall
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Patent number: 7726395Abstract: Apparatus for expanding first and second portions of a downhole tubular in a single trip comprises a support and first and second expansion devices. The first expansion device is mounted on the support and is operable to expand a first portion of tubular. The second expansion device is mounted to a second portion of tubular and is adapted to be engaged by the support following the expansion of the first portion of tubular, and is then used to expand the second portion of tubular.Type: GrantFiled: December 14, 2006Date of Patent: June 1, 2010Assignee: Weatherford/Lamb, Inc.Inventors: Colin McHardy, Simon John Harrall
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Publication number: 20100005643Abstract: A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first expandable tubing section defining a male portion; a second expandable tubing section defining a female portion, the first and second expandable tubing sections being engageable with one another; one of the first and second expandable tubing sections including a restraining member for restraining part of the other expandable tubing section; and the first expandable tubing section including a tapered shoulder for co-operating with a corresponding tapered shoulder of the second expandable tubing section.Type: ApplicationFiled: July 14, 2009Publication date: January 14, 2010Inventors: Jason David Evans, Martin William Geddes, Colin McHardy, Wayne Rudd
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Publication number: 20090223680Abstract: Methods relate to tubulars that may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.Type: ApplicationFiled: May 15, 2009Publication date: September 10, 2009Inventors: Annabel Green, Lev Ring, Colin McHardy, Simon Harrall, Gary Johnston, Neil A.A. Simpson
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Patent number: 7559582Abstract: A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first expandable tubing section defining a male portion; a second expandable tubing section defining a female portion, the first and second expandable tubing sections being engageable with one another; one of the first and second expandable tubing sections including a restraining member for restraining part of the other expandable tubing section; and the first expandable tubing section including a tapered shoulder for co-operating with a corresponding tapered shoulder of the second expandable tubing section.Type: GrantFiled: July 5, 2007Date of Patent: July 14, 2009Assignee: Weatherford/Lamb, Inc.Inventors: Jason David Evans, Martin William Geddes, Colin McHardy, Wayne Rudd
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Patent number: 7543637Abstract: Methods relate to tubulars that may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.Type: GrantFiled: October 2, 2007Date of Patent: June 9, 2009Assignee: Weatherford/Lamb, Inc.Inventors: Annabel Green, Lev Ring, Colin McHardy, Simon Harrall, Gary Johnston, Neil A. A. Simpson
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Publication number: 20080017387Abstract: Methods relate to tubulars that may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.Type: ApplicationFiled: October 2, 2007Publication date: January 24, 2008Inventors: Annabel Green, Lev Ring, Colin McHardy, Simon Harrall, Gary Johnston, Neil Simpson
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Publication number: 20080012320Abstract: A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first expandable tubing section defining a male portion; a second expandable tubing section defining a female portion, the first and second expandable tubing sections being engageable with one another; one of the first and second expandable tubing sections including a restraining member for restraining part of the other expandable tubing section; and the first expandable tubing section including a tapered shoulder for co-operating with a corresponding tapered shoulder of the second expandable tubing section.Type: ApplicationFiled: July 5, 2007Publication date: January 17, 2008Inventors: Jason Evans, Martin Geddes, Colin McHardy, Wayne Rudd
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Patent number: 7275602Abstract: Methods and apparatus for expanding tubulars are disclosed. The tubulars may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.Type: GrantFiled: September 30, 2004Date of Patent: October 2, 2007Assignee: Weatherford/Lamb, Inc.Inventors: Annabel Green, Lev Ring, Colin McHardy, Simon Harrall, Gary Johnston, Neil A. A. Simpson
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Patent number: 7240928Abstract: A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first expandable tubing section defining a male portion; a second expandable tubing section defining a female portion, the first and second expandable tubing sections being engageable with one another; one of the first and second expandable tubing sections including a restraining member for restraining part of the other expandable tubing section; and the first expandable tubing section including a tapered shoulder for co-operating with a corresponding tapered shoulder of the second expandable tubing section.Type: GrantFiled: September 17, 2003Date of Patent: July 10, 2007Assignee: Weatherford/Lamb, Inc.Inventors: Jason David Evans, Martin William Geddes, Colin McHardy, Wayne Rudd
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Publication number: 20070119597Abstract: Apparatus for expanding first and second portions of a downhole tubular in a single trip comprises a support and first and second expansion devices. The first expansion device is mounted on the support and is operable to expand a first portion of tubular. The second expansion device is mounted to a second portion of tubular and is adapted to be engaged by the support following the expansion of the first portion of tubular, and is then used to expand the second portion of tubular.Type: ApplicationFiled: December 14, 2006Publication date: May 31, 2007Inventors: Colin McHardy, Simon Harrall
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Publication number: 20060065408Abstract: Methods and apparatus for expanding tubulars are disclosed. The tubulars may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.Type: ApplicationFiled: September 30, 2004Publication date: March 30, 2006Inventors: Annabel Green, Lev Ring, Colin McHardy, Simon Harrall, Gary Johnston
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Publication number: 20040135370Abstract: There is disclosed a tubing connection arrangement and a method of coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement (10) comprising a first expandable tubing section (12) defining a male portion (16); a second expandable tubing section (14) defining a female portion (18), the first and second expandable tubing sections (12, 14) being engageable with one another; one of the first and second expandable tubing sections (12, 14) including a restraining member (40) for restraining part of the other expandable tubing section (12, 14); and the first expandable tubing section (12) including a tapered shoulder (42,44) for co-operating with a corresponding tapered shoulder (46,48) of the second expandable tubing section (14).Type: ApplicationFiled: September 17, 2003Publication date: July 15, 2004Inventors: Jason David Evans, Martin William Geddes, Colin McHardy, Wayne Rudd
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Patent number: 6725937Abstract: Downhole apparatus comprises a body for mounting on a tubular string, the body defining an internal bore. A fluid pressure actuated valve member is movable relative to the body and a normally closed flow port is provided in the valve member. With the valve member in a first position relative to the body the port is closed, and with the valve member in a second position the port is open to permit fluid communication therethrough between the body bore and the exterior of the body. The valve member is biassed towards the first position. A fluid pressure actuated latch arrangement releasably retains the valve member in the first position, the latch arrangement being releasable on application of a predetermined cracking pressure to allow the unlatched valve member to move to the second position in response to a valve opening pressure lower than the cracking pressure. The latch is resettable to relatch the valve member on return of the valve member to the first position.Type: GrantFiled: April 22, 2002Date of Patent: April 27, 2004Assignee: Weatherford/Lamb, Inc.Inventor: Colin McHardy
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Patent number: 5409059Abstract: A locking mandrel is provided for use in downhole assembly and comprises a cylindrical body (12) having an annular series of openings (20) in which locking keys (21) are movably positioned, the keys (21) being biased radially inwardly, and an inner mandrel (13, 14) for moving the keys (21) from a withdrawn primed condition to an extended set position. Additionally the body (12) includes a series of movable no-go members (22) below the keys (21) which are extended in the primed condition so as to be engageable with a no-go ring (R2) on a downhole tubing string to axially arrest the body.Type: GrantFiled: November 9, 1993Date of Patent: April 25, 1995Assignee: Petroline Wireline Services LimitedInventor: Colin McHardy
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Patent number: 5267613Abstract: An upstroke jar for use in downhole operations in an oil or gas well and for connection between a wireline and a tool comprises a casing defining an anvil and for connection to the tool, a hammer slidable axially within the casing for impacting with the anvil and for connection to the wireline, a hammer holder, a spring arrangement located between an abutment on the casing and an abutment on the hammer holder for compression on an operative movement of the hammer holder as a consequence of tension on the wireline and a connector releasable to free the hammer from the holder at the completion of the operative movement so that the freed hammer may impact with the anvil. The compression load on the spring present at the release is dependant on the extent of the operative movement from a rest position and the degree of compression of the spring means to obtain the operative movement. Adjustment of the release load present at the instant the hammer part is released by the connector is provided.Type: GrantFiled: March 27, 1992Date of Patent: December 7, 1993Assignee: Petroline Wireline Services LimitedInventors: Klaas J. Zwart, Colin McHardy
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Patent number: 5156209Abstract: In a downhole assembly (1) including an outer casing or mandrel (2), an axially movable prong (11) in the mandrel, and means for equalizing pressure within the mandrel (1) comprising a fluid duct (7) communicating the interior of the mandrel with the outside and a control member (or melon) (8) movable by the prong to control fluid flow via said duct (7); there is provided apparatus for controlling movement of the prong (11) comprising radially movable arrester dogs (14) engagable with a rib (20) on the prong (11) and an annular piston device (15) located in a housing (16) adapted for operative movement of the dogs (14). In particular housing zones on either side of the piston device (15) are maintained at tool external and mandrel internal pressure respectively whereby the piston device (11) is moved to lock the prong (11) when there is a pressure imbalance but free the prong (11) when pressure equilibrium is reached.Type: GrantFiled: February 22, 1991Date of Patent: October 20, 1992Assignee: Petroline Wireline Services Ltd.Inventor: Colin McHardy