Patents by Inventor Colin Longfield
Colin Longfield 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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Publication number: 20100170682Abstract: Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel.Type: ApplicationFiled: January 2, 2009Publication date: July 8, 2010Inventors: William E. Brennan, III, Colin Longfield, Alexis Arzoumanidis, Alessandro Caccialupi
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Patent number: 7654321Abstract: A fluid sampling system retrieves a formation fluid sample from a formation surrounding a wellbore extending along a wellbore axis, wherein the formation has a virgin fluid and a contaminated fluid therein. The system includes a sample inlet, a first guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a first direction along the wellbore axis, and a second guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a second, opposite direction along the wellbore axis. At least one cleanup flowline is fluidly connected to the first and second guard inlets for passing contaminated fluid, and an evaluation flowline is fluidly connected to the sample inlet for collecting virgin fluid.Type: GrantFiled: December 27, 2006Date of Patent: February 2, 2010Assignee: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Colin Longfield, Julian J. Pop, Thomas H. Zimmerman, John D. Sherwood, Keith A. Burgess
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Publication number: 20100018704Abstract: A fluid sampling system retrieves a formation fluid sample from a formation surrounding a wellbore extending along a wellbore axis, wherein the formation has a virgin fluid and a contaminated fluid therein. The system includes a sample inlet, a first guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a first direction along the wellbore axis, and a second guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a second, opposite direction along the wellbore axis. At least one cleanup flowline is fluidly connected to the first and second guard inlets for passing contaminated fluid, and an evaluation flowline is fluidly connected to the sample inlet for collecting virgin fluid.Type: ApplicationFiled: September 11, 2009Publication date: January 28, 2010Inventors: ALEXANDER F. ZAZOVSKY, Colin Longfield, Julian J. Pop, Thomas H. Zimmerman, John D. Sherwood, Keith A. Burgess
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Publication number: 20100012313Abstract: According to one or more aspects of the present disclosure, a piezoelectric pump may include a hydraulic fluid path between a low pressure source and a high pressure tool port; a fluid disposed in the hydraulic fluid path; a piston in communication with the fluid; and a piezoelectric material connected to the piston to pump the fluid through the high pressure tool port.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Colin Longfield, David Wei Wang, Gary L. Rytlewski
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Patent number: 7578342Abstract: Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel.Type: GrantFiled: February 5, 2008Date of Patent: August 25, 2009Assignee: Schlumberger Technology CorporationInventors: William E. Brennan, III, Colin Longfield, Alexis Arzoumanidis, Alessandro Caccialupi
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Patent number: 7546885Abstract: A downhole drilling tool positionable in a wellbore penetrating a subterranean formation is provided. The tool includes a formation evaluation tool having fixed and retrievable portions. The fixed portion is operatively connected to a drill collar of the downhole tool. The fixed portion is for establishing fluid communication with a subterranean formation. The retrievable portion is fluidly connected to the fixed portion and retrievable therefrom to a surface location. The retrievable portion is for receiving a formation fluid from the subterranean formation.Type: GrantFiled: April 25, 2006Date of Patent: June 16, 2009Assignee: Schlumberger Technology CorporationInventor: Colin Longfield
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Publication number: 20080156487Abstract: A fluid sampling system retrieves a formation fluid sample from a formation surrounding a wellbore extending along a wellbore axis, wherein the formation has a virgin fluid and a contaminated fluid therein. The system includes a sample inlet, a first guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a first direction along the wellbore axis, and a second guard inlet positioned adjacent to the sample inlet and spaced from the sample inlet in a second, opposite direction along the wellbore axis.Type: ApplicationFiled: December 27, 2006Publication date: July 3, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Alexander F. Zazovsky, Colin Longfield, Julian J. Pop, Thomas H. Zimmerman, John D. Sherwood, Keith A. Burgess
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Patent number: 7392851Abstract: Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel.Type: GrantFiled: November 4, 2004Date of Patent: July 1, 2008Assignee: Schlumberger Technology CorporationInventors: William E. Brennan, III, Colin Longfield, Alexis Arzoumanidis, Alessandro Caccialupi
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Publication number: 20080135240Abstract: Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel.Type: ApplicationFiled: February 5, 2008Publication date: June 12, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: William E. Brennan, Colin Longfield, Alexis Arzoumanidis, Alessandro Caccialupi
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Patent number: 7311142Abstract: A downhole tool positionable in a wellbore for penetrating a subterranean formation includes a housing having at least one protuberance extending therefrom. The protuberance has at least one centralizing section and a protective section. A probe is positioned in the protective section such that the horizontal cross-sectional area of the housing along the protective section is less than the horizontal cross-sectional area of the housing along the at least one centralizing section.Type: GrantFiled: September 1, 2006Date of Patent: December 25, 2007Assignee: Schlumberger Technology CorporationInventors: Patrick Fisseler, Tom Palmer, James Mather, Colin Longfield, Richard Meehan, Jean-Marc Follini, Jean-Michel Hache
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Patent number: 7278480Abstract: A sensor plug positionable in a perforation extending into a wall of a wellbore penetrating a subterranean formation is provided. The sensor plug includes a plug sleeve disposable in a perforation extending through the wellbore wall, a pin positionable in the plug sleeve a sensor and circuitry. The pin is adapted to expand the plug sleeve as it is advanced therein whereby the plug sleeve seals the perforation. The sensor plug may be deployed into the sidewall of the wellbore by a downhole tool.Type: GrantFiled: March 31, 2005Date of Patent: October 9, 2007Assignee: Schlumberger Technology CorporationInventors: Colin Longfield, Yves Barriol, Douglas W. Grant
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Publication number: 20070039730Abstract: A downhole tool positionable in a wellbore for penetrating a subterranean formation includes a housing having at least one protuberance extending therefrom. The protuberance has at least one centralizing section and a protective section. A probe is positioned in the protective section such that the horizontal cross-sectional area of the housing along the protective section is less than the horizontal cross-sectional area of the housing along the at least one centralizing section.Type: ApplicationFiled: September 1, 2006Publication date: February 22, 2007Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: PATRICK FISSELER, TOM PALMER, JAMES MATHER, COLIN LONGFIELD, RICHARD MEEHAN, JEAN-MARC FOLLINI, JEAN-MICHEL HACHE
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Publication number: 20060260805Abstract: A downhole drilling tool positionable in a wellbore penetrating a subterranean formation is provided. The tool includes a formation evaluation tool having fixed and retrievable portions. The fixed portion is operatively connected to a drill collar of the downhole tool. The fixed portion is for establishing fluid communication with a subterranean formation. The retrievable portion is fluidly connected to the fixed portion and retrievable therefrom to a surface location. The retrievable portion is for receiving a formation fluid from the subterranean formation.Type: ApplicationFiled: April 25, 2006Publication date: November 23, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Colin Longfield
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Publication number: 20060219401Abstract: A sensor plug positionable in a perforation extending into a wall of a wellbore penetrating a subterranean formation is provided. The sensor plug includes a plug sleeve disposable in a perforation extending through the wellbore wall, a pin positionable in the plug sleeve a sensor and circuitry. The pin is adapted to expand the plug sleeve as it is advanced therein whereby the plug sleeve seals the perforation. The sensor plug may be deployed into the sidewall of the wellbore by a downhole tool.Type: ApplicationFiled: March 31, 2005Publication date: October 5, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Colin Longfield, Yves Barriol, Douglas Grant
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Patent number: 7114562Abstract: An apparatus and method useful for acquiring information from a subsurface formation penetrated by a wellbore contemplate the use of a tubular body adapted for connection within a drill string disposed in the wellbore. The tubular body is equipped with one or more protuberances (e.g., ribs) defining an expanded axial portion. A probe is carried by the tubular body at or near a first location within the expanded axial portion of the body where the cross-sectional area of the expanded axial portion is a minimum. The probe is movable between retracted and extended positions. In another aspect, the inventive apparatus may further include a cover releasably-secured about the probe for protecting the probe while drilling. In a further aspect, the inventive apparatus may include a shearable backup support carried by the tubular body azimuthally opposite the probe permitting release of the apparatus from the wellbore in the event of a failure.Type: GrantFiled: November 24, 2003Date of Patent: October 3, 2006Assignee: Schlumberger Technology CorporationInventors: Patrick Fisseler, Tom Palmer, James Mather, Colin Longfield, Richard Meehan, Jean-Marc Follini, Jean-Michel Hache
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Publication number: 20060168955Abstract: A pumping system for a downhole tool positionable in a wellbore penetrating a subterranean formation. The pumping system includes an actuator, a fluid movement source and a passive flow distribution block. The actuator has a body slidably positionable in a vessel. The body defines a first chamber and a second chamber in the vessel. The fluid movement source has at least one port for selectively moving fluid in at least two directions. The passive flow distribution block is adapted to selectively divert fluid from the fluid movement source to one of the first and second chambers whereby the body is selectively reciprocated.Type: ApplicationFiled: February 3, 2005Publication date: August 3, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: COLIN LONGFIELD, JEAN-MARC FOLLINI
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Publication number: 20060090905Abstract: Conventional formation evaluation with dual inflatable packers includes the steps of pressurizing the packers so as to isolate an annular portion of the borehole wall, collecting one or more samples of formation fluid via the isolated portion of the borehole wall, and depressurizing the packers so as to permit movement of the mandrel within the borehole. A sampling method and apparatus that utilize one or more of the following to advantage is provided: restricting deformation of the packers during inflation using an annular bracing assembly; actively retracting the packers using ambient borehole pressure; and substantially centralizing the mandrel intermediate the packers so as to resist buckling of the mandrel.Type: ApplicationFiled: November 4, 2004Publication date: May 4, 2006Inventors: William Brennan, Colin Longfield, Alexis Arzoumanidis, Alessandro Caccialupi
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Publication number: 20050109538Abstract: An apparatus and method useful for acquiring information from a subsurface formation penetrated by a wellbore contemplate the use of a tubular body adapted for connection within a drill string disposed in the wellbore. The tubular body is equipped with one or more protuberances (e.g., ribs) defining an expanded axial portion. A probe is carried by the tubular body at or near a first location within the expanded axial portion of the body where the cross-sectional area of the expanded axial portion is a minimum. The probe is movable between retracted and extended positions. In another aspect, the inventive apparatus may further include a cover releasably-secured about the probe for protecting the probe while drilling. In a further aspect, the inventive apparatus may include a shearable backup support carried by the tubular body azimuthally opposite the probe permitting release of the apparatus from the wellbore in the event of a failure.Type: ApplicationFiled: November 24, 2003Publication date: May 26, 2005Applicant: Schlumberger Technology CorporationInventors: Patrick Fisseler, Tom Palmer, James Mather, Colin Longfield, Richard Meehan, Jean-Marc Follini, Jean-Michel Hache
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Patent number: 6467387Abstract: An apparatus and method are provided for deploying a data sensing apparatus into a subsurface geologic formation for intermittent or continuously gathering data from the subsurface formation and transmitting the data to a remote data receiver. In a preferred embodiment, a non-linear arrangement of a barrel and a burn chamber is used to provide a gun-like device for firing a bullet-shaped data sensing apparatus into a formation of interest. The data sensing apparatus, once disposed within the matrix of the formation of interest, monitors formation conditions and transmits the data for use in optimizing drilling and production activities.Type: GrantFiled: January 19, 2001Date of Patent: October 22, 2002Assignee: Schlumberger Technology CorporationInventors: Frank Espinosa, Reinhart Ciglenec, Colin Longfield