Patents by Inventor Paul G. Goughnour
Paul G. Goughnour 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: 9103185Abstract: A technique facilitates prolonging the useful life of a subsurface valve without requiring replacement of the entire hydraulic chamber housing of the subsurface valve. A removable piston tube is provided and may be inserted into a valve housing of a subsurface valve. The removable piston tube is removably secured within a piston passage in the valve housing via a fastening mechanism. If necessary, the removable piston tube can be removed and replaced without requiring replacement of the overall housing.Type: GrantFiled: November 7, 2011Date of Patent: August 11, 2015Assignee: Schlumberger Technology CorporationInventors: David James Biddick, Paul G. Goughnour, Geoffrey Pinard
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Publication number: 20130341034Abstract: A flow control device comprising a flapper retention device electrically activated to a hold position to retain the flapper in an open position in response to the operator being in a first position and the retention device electrically deactivated to a released position permitting movement of the flapper in response to the operator being in a second position. When the operator is in the first position, an end of the operator is located in the closure path of the flapper and in the second position the end of the operator is located out of the closure path.Type: ApplicationFiled: June 25, 2012Publication date: December 26, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: David James Biddick, Russell A. Johnston, Paul G. Goughnour
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Publication number: 20120205114Abstract: A technique facilitates prolonging the useful life of a subsurface valve without requiring replacement of the entire hydraulic chamber housing of the subsurface valve. A removable piston tube is provided and may be inserted into a valve housing of a subsurface valve. The removable piston tube is removably secured within a piston passage in the valve housing via a fastening mechanism. If necessary, the removable piston tube can be removed and replaced without requiring replacement of the overall housing.Type: ApplicationFiled: November 7, 2011Publication date: August 16, 2012Inventors: David James Biddick, Paul G. Goughnour, Geoffrey Pinard
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Publication number: 20120031624Abstract: According to one or more aspects of the present disclosure, an engaging member for operating a subsurface valve between an open position and a closed position includes a bottom portion comprising a terminal end adapted for contacting a valve closure member, the bottom portion having a first material characteristic and an upper portion having a second material characteristic that is quantitatively different from the first material characteristic. The material characteristics include, without limitation, strength, coefficient of friction, and the modulus of elasticity.Type: ApplicationFiled: August 6, 2010Publication date: February 9, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Paul G. Goughnour, Russell A. Johnston, David J. Biddick
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Publication number: 20110083858Abstract: According to one or more embodiments of the invention, a downhole tool includes one or more actuator apparatuses to facilitate actuation of the downhole tool. The actuation apparatus includes a piston that is dynamically coupled to a tool actuator by an actuator connector in a manner that the piston and the tool actuator necessarily move in unison in response to movement of the piston in a first direction and the piston and the tool actuator do not necessarily move in unison in response to movement of the piston in the second direction.Type: ApplicationFiled: October 8, 2010Publication date: April 14, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Russell A. Johnston, Paul G. Goughnour, David J. Biddick
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Patent number: 7779919Abstract: A system and method for use in a wellbore that includes a string comprising a housing. The housing comprises a valve including a valve seat having an inner channel and a flapper configured to pivot relative to the valve seat between a first position and a second position in which the inner channel is obstructed. A valve actuating device may be provided for selectively opening the valve and comprising a first hydraulic device. In addition, a retention device including a second hydraulic device may be provided and configured to selectively retain the flapper in the first position. In some cases, the first hydraulic device and the second hydraulic device may be driven by the same fluid source.Type: GrantFiled: April 23, 2008Date of Patent: August 24, 2010Assignee: Schlumberger Technology CorporationInventors: Paul G. Goughnour, David James Biddick
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Patent number: 7740075Abstract: An embodiment of a valve that is operable from one position to another position upon relief of an applied pressure includes a housing having a bore; a valve member disposed with the housing, wherein the valve member is actuated to one position in response to a certain applied pressure and actuates toward another position upon relief of the certain applied pressure; and a relief system relieving the pressure applied to the valve member when the applied pressure falls below a selected pressure level.Type: GrantFiled: July 9, 2008Date of Patent: June 22, 2010Assignee: Schlumberger Technology CorporationInventors: Paul G. Goughnour, Russell A. Johnston
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Publication number: 20100006295Abstract: An embodiment of a valve that is operable from one position to another position upon relief of an applied pressure includes a housing having a bore; a valve member disposed with the housing, wherein the valve member is actuated to one position in response to a certain applied pressure and actuates toward another position upon relief of the certain applied pressure; and a relief system relieving the pressure applied to the valve member when the applied pressure falls below a selected pressure level.Type: ApplicationFiled: July 9, 2008Publication date: January 14, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Paul G. GOUGHNOUR, Russell A. JOHNSTON
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Publication number: 20090266557Abstract: A system for use in a wellbore that includes a string comprising a housing. The housing comprises a valve including a valve seat having an inner channel and a flapper configured to pivot relative to the valve seat between a first position and a second position in which the inner channel is obstructed. A valve actuating device may be provided for selectively opening the valve and comprising a first hydraulic device. In addition, a retention device including a second hydraulic device may be provided and configured to selectively retain the flapper in the first position. In some cases, the first hydraulic device and the second hydraulic device may be driven by the same fluid source.Type: ApplicationFiled: April 23, 2008Publication date: October 29, 2009Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Paul G. Goughnour, David James Biddick