Patents by Inventor Danny Hlavinka
Danny Hlavinka 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: 8561686Abstract: A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall.Type: GrantFiled: August 5, 2011Date of Patent: October 22, 2013Assignee: Schlumberger Technology CorporationInventors: Chen Tao, Danny A. Hlavinka, Jonathan W. Brown, Christopher S. Del Campo, Stephane Briquet, Steve Ervin, Kevin W. Hayes
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Patent number: 8220536Abstract: A probe for establishing fluid communication between a downhole tool and a subterranean formation. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall.Type: GrantFiled: March 3, 2010Date of Patent: July 17, 2012Assignee: Schlumberger Technology CorporationInventors: Chen Tao, Danny A. Hlavinka, Jonathan W. Brown, Christopher S. Del Campo, Stephane Briquet, Steve Ervin, Kevin W. Hayes
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Publication number: 20110284212Abstract: A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall.Type: ApplicationFiled: August 5, 2011Publication date: November 24, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Chen Tao, Danny A. Hlavinka, Jonathan W. Brown, Christopher S. Del Campo, Stephane Briquet, Steve Ervin, Kevin W. Hayes
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Publication number: 20100155053Abstract: A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall.Type: ApplicationFiled: March 3, 2010Publication date: June 24, 2010Inventors: Chen Tao, Danny A. Hlavinka, Jonathan W. Brown, Christopher S. Del Campo, Stephane Briquet, Steve Ervin, Kevin W. Hayes
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Patent number: 7568521Abstract: A formation evaluation tool positionable in a wellbore penetrating a subterranean formation is provided. The formation evaluation tool includes a cooling system adapted to pass a cooling fluid through electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics has at least one gauge, a fluid communication device having an inlet adapted to receive the formation fluid and a flowline operatively connected to the fluid communication device and the gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined.Type: GrantFiled: October 25, 2007Date of Patent: August 4, 2009Assignee: Schlumberger Technology CorporationInventors: Jonathan Brown, Danny A. Hlavinka, David Ayers
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Patent number: 7428925Abstract: A formation evaluation tool positionable in a wellbore penetrating a subterranean formation is provided. The formation evaluation tool includes a cooling system adapted to pass a cooling fluid near electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics has at least one gauge, a fluid communication device having an inlet adapted to receive the formation fluid and a flowline operatively connected to the fluid communication device and the gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined. The formation evaluation tool may also be provided with a plurality of sample chambers operatively connected to the flowline for collecting at least a portion of the formation fluid and a pressure compensator in fluid communication with the wellbore and operatively connected to the plurality of sample chambers for applying pressure to the sample chambers whereby pressure is balanced therebetween.Type: GrantFiled: November 21, 2005Date of Patent: September 30, 2008Assignee: Schlumberger Technology CorporationInventors: Jonathan Brown, Danny A. Hlavinka, David Ayers
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Publication number: 20080041593Abstract: A formation evaluation tool positionable in a wellbore penetrating a subterranean formation is provided. The formation evaluation tool includes a cooling system adapted to pass a cooling fluid through electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics has at least one gauge, a fluid communication device having an inlet adapted to receive the formation fluid and a flowline operatively connected to the fluid communication device and the gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined.Type: ApplicationFiled: October 25, 2007Publication date: February 21, 2008Inventors: Jonathan Brown, Danny Hlavinka, David Ayers
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Publication number: 20070151727Abstract: A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall.Type: ApplicationFiled: December 11, 2006Publication date: July 5, 2007Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Chen Tao, Danny Hlavinka, Jonathan Brown, Christopher Del Campo, Stephane Briquet, Steve Ervin, Kevin Hayes
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Publication number: 20070114021Abstract: A formation evaluation tool positionable in a wellbore penetrating a subterranean formation is provided. The formation evaluation tool includes a cooling system adapted to pass a cooling fluid near electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics has at least one gauge, a fluid communication device having an inlet adapted to receive the formation fluid and a flowline operatively connected to the fluid communication device and the gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined. The formation evaluation tool may also be provided with a plurality of sample chambers operatively connected to the flowline for collecting at least a portion of the formation fluid and a pressure compensator in fluid communication with the wellbore and operatively connected to the plurality of sample chambers for applying pressure to the sample chambers whereby pressure is balanced therebetween.Type: ApplicationFiled: November 21, 2005Publication date: May 24, 2007Inventors: Jonathan Brown, Danny Hlavinka, David Ayers
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Patent number: 5927402Abstract: A down hole tool, constructed to be suspended in a well by pipe, includes a housing, a circulation piston, a biasing member and a pressure-compensation system. The housing defines a flow chamber in open fluid communication with the pipe interior, a bypass port for fluid flow between the flow chamber and the well, a mud chamber in open communication with the well, and a sealed chamber separated from the flow chamber by a sealed interface. The circulation piston separates the flow and mud chambers and is arranged for movement between a first, bypass port-blocking position and a second, bypass port-exposing position in response to pressure in the flow chamber. The biasing member biases the circulation piston to its first position, and the pressure-compensation system limits the pressure difference between the flow and sealed chambers, thereby limiting the pressure difference across the sealed interface. The tool has particular application to tools, e.g.Type: GrantFiled: June 5, 1997Date of Patent: July 27, 1999Assignee: Schlumberger Technology CorporationInventors: Walter R. Benson, Augdon J. Sampa, Danny A. Hlavinka