Patents by Inventor Pierre Campanac
Pierre Campanac 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: 9091150Abstract: A method according to one or more aspects of the present disclosure includes moving a piston of a displacement unit to pump a fluid through first and second flowlines hydraulically connected to the displacement unit through a valve network. The method also includes monitoring flowing pressure in the first flowline and monitoring pressure in a first chamber of the displacement unit. The method further includes opening a first active valve of the valve network in response to the monitored pressure in the first chamber being about equal to or less than the monitored flowing pressure in the first flowline.Type: GrantFiled: May 23, 2013Date of Patent: July 28, 2015Assignee: Schlumberger Technology CorporationInventors: Simon Ross, Pierre Campanac
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Patent number: 8681582Abstract: A method for estimating formation porosity and lithology on a real time basis during a logging while drilling operation using measured values of formation attenuation attributes for compression and/or shear.Type: GrantFiled: December 27, 2007Date of Patent: March 25, 2014Assignee: Schlumberger Technology CorporationInventors: Peter T. Wu, Alain Dumont, Pierre Campanac
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Publication number: 20140069640Abstract: A formation testing apparatus and method for obtaining samples with lower levels of contaminants is provided. Such a method can remove contaminants from at fluid sample, and can include the steps of obtaining fluid, from a formation and passing a first quantity of the fluid through a sample flow line. A connection between the sample flow line and a sample chamber can he opened, and a first portion of the first quantity of the fluid can be drawn into the sample chamber via a floating piston. The first portion can be forced out of the sample chamber, and this process can be repeated until sufficient contaminants have been removed. Finally, a second portion of the first quantity of the fluid can be drawn into the sample chamber as the fluid sample.Type: ApplicationFiled: September 11, 2012Publication date: March 13, 2014Inventors: Yoshitake Yajima, Nathan Landsiedel, Pierre Campanac
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Patent number: 8619501Abstract: One or more embodiments and methods of analyzing a formation sample with in a coring tool are disclosed herein. The methods and embodiments may include extracting a first core from a sidewall of a wellbore with a coring tool at a first depth, ultrasonically measuring a sound speed of the first core, transmitting the ultrasonically measured sound speed of the first core to a surface display unit, analyzing the ultrasonically measured sound speed in real time, determining the quality of the first core, extracting a second core at the first depth if the first core is determined to be low quality, and extracting the second core at a second depth if the core first is determined to be high quality.Type: GrantFiled: April 6, 2010Date of Patent: December 31, 2013Assignee: Schlumberger Technology CorporationInventors: Fernando Garcia-Osuna, Pierre Campanac
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Patent number: 8564315Abstract: Apparatus and methods for measuring an effect of corrosion with a corrosion sensor. The apparatus includes at least a portion of a metal material configured to be disposed within a borehole and exposed to a fluid. The apparatus includes a sensor configured to measure an effect of corrosion of the at least portion of the metal material within the fluid.Type: GrantFiled: July 8, 2010Date of Patent: October 22, 2013Assignee: Schlumberger Technology CorporationInventors: Patrick J. Fisseler, Anthony R. H. Goodwin, Pierre Campanac, John W. Still
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Patent number: 8553493Abstract: A method for estimating formation permeability from measured sonic wave Stoneley attributes and particularly the Stoneley attributes of slowness (DTst) and attenuation (ATTst), taking into consideration the existence of a heavy walled drill collar at the end of the drill string and the relative lack of borehole mud cake during a drilling operation. In the subject LWD application a real-time qualitative indication for fracture and permeable zones is estimated from Stoneley measurements. This information is useful to a driller to make important timely decisions about drilling and completion programs.Type: GrantFiled: December 27, 2007Date of Patent: October 8, 2013Assignee: Schlumberger Technology CorporationInventors: Peter T. Wu, Alain Dumont, Pierre Campanac, David Linton Johnson
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Patent number: 8547789Abstract: A method for determining on a real time logging while drilling (LWD) basis gas within earth formations traversed by a borehole. Continuous LWD acoustic measurements are recorded and processed including coherent energy and attenuation attributes to detect downhole gas zones and kick during drilling operations.Type: GrantFiled: December 27, 2007Date of Patent: October 1, 2013Assignee: Schlumberger Technology CorporationInventors: Peter T. Wu, Alain Dumont, Pierre Campanac, David Linton Johnson
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Publication number: 20130248173Abstract: A method according to one or more aspects of the present disclosure includes moving a piston of a displacement unit to pump a fluid through first and second flowlines hydraulically connected to the displacement unit through a valve network. The method also includes monitoring flowing pressure in the first flowline and monitoring pressure in a first chamber of the displacement unit. The method further includes opening a first active valve of the valve network in response to the monitored pressure in the first chamber being about equal to or less than the monitored flowing pressure in the first flowline.Type: ApplicationFiled: May 23, 2013Publication date: September 26, 2013Applicant: Schlumberger Technology CorporationInventors: Simon Ross, Pierre Campanac
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Patent number: 8471560Abstract: The present invention relates to making one or more measurements in a virgin formation using a downhole tool that includes a miniature logging tool. The downhole tool is disposed in a wellbore penetrating the formation, adjacent to the formation, and a sidetrack borehole is made into the formation. All or a portion of the miniature logging tool is deployed into the sidetrack borehole and measurements are made in the virgin formation using the miniature logging tool. The downhole tool may include a drilling/coring module, a pump module, and packers. The drilling/coring module is used to make the sidetrack borehole, and the packers and pump module can be used to create an underbalanced drilling condition in an isolated section of the wellbore.Type: GrantFiled: September 18, 2009Date of Patent: June 25, 2013Assignee: Schlumberger Technology CorporationInventors: Robert Freedman, Douglas W. Grant, Henry N. Bachman, Pierre Campanac
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Patent number: 8448703Abstract: A method according to one or more aspects of the present disclosure comprises disposing a tool in a wellbore, the tool comprising a displacement unit for pumping a fluid at least partially through the tool, a first flowline hydraulically connected to the displacement unit through a valve network, and a second flowline hydraulically connected to the displacement unit; pumping a fluid from the first flowline to the second flowline; monitoring a pressure at a chamber of the displacement unit; and monitoring flowing pressure in the first flowline across the valve network from the displacement unit.Type: GrantFiled: November 16, 2009Date of Patent: May 28, 2013Assignee: Schlumberger Technology CorporationInventors: Simon Ross, Pierre Campanac
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Patent number: 8393874Abstract: A pumping system and method to be used within a downhole tool is disclosed herein. The pumping system includes a displacement unit having a cavity formed therein, in which the cavity is configured to receive a fluid therein. A hydraulic driving device and a mechanical driving device are then both included within the system such that both the hydraulic driving device and the mechanical driving device are configured to drive a piston of the displacement unit to receive the fluid within the cavity.Type: GrantFiled: November 24, 2009Date of Patent: March 12, 2013Assignee: Schlumberger Technology CorporationInventors: Alexander Zazovsky, Mark Milkovisch, Pierre Campanac
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Patent number: 8238194Abstract: Methods for compression of sonic log data include STC processing, sorting peak components in the sonic data; filtering the sorted peak components to remove high-frequency portions in the peak components; and decimating the filtered peak components according to a selected ratio to produce compressed data. One method for telemetry transmission of downhole sonic log data includes sorting peak components in the sonic log data; compressing the sorted peak components to produce compressed data; packing the compressed data to produce data packets for telemetry transmission; and sending the data packets using telemetry.Type: GrantFiled: December 4, 2006Date of Patent: August 7, 2012Assignee: Schlumberger Technology CorporationInventors: Peter T. Wu, Pierre Campanac, Shu-Kong Chang, James G. L. Thompson, Anshuman Sinha
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Publication number: 20120007617Abstract: Apparatus and methods for measuring an effect of corrosion with a corrosion sensor. The apparatus includes at least a portion of a metal material configured to be disposed within a borehole and exposed to a fluid. The apparatus includes a sensor configured to measure an effect of corrosion of the at least portion of the metal material within the fluid.Type: ApplicationFiled: July 8, 2010Publication date: January 12, 2012Inventors: Patrick J. Fisseler, Anthony R.H. Goodwin, Pierre Campanac, John W. Still
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Publication number: 20110242938Abstract: One or more embodiments and methods of analyzing a formation sample with in a coring tool are disclosed herein. The methods and embodiments may include extracting a first core from a sidewall of a wellbore with a coring tool at a first depth, ultrasonically measuring a sound speed of the first core, transmitting the ultrasonically measured sound speed of the first core to a surface display unit, analyzing the ultrasonically measured sound speed in real time, determining the quality of the first core, extracting a second core at the first depth if the first core is determined to be low quality, and extracting the second core at a second depth if the core first is determined to be high quality.Type: ApplicationFiled: April 6, 2010Publication date: October 6, 2011Inventors: Fernando Garcia-Osuna, Pierre Campanac
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Publication number: 20110123368Abstract: A pumping system and method to be used within a downhole tool is disclosed herein. The pumping system includes a displacement unit having a cavity formed therein, in which the cavity is configured to receive a fluid therein. A hydraulic driving device and a mechanical driving device are then both included within the system such that both the hydraulic driving device and the mechanical driving device are configured to drive a piston of the displacement unit to receive the fluid within the cavity.Type: ApplicationFiled: November 24, 2009Publication date: May 26, 2011Inventors: ALEXANDER ZAZOVSKY, Mark Milkovisch, Pierre Campanac
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Publication number: 20110114310Abstract: A method according to one or more aspects of the present disclosure comprises disposing a tool in a wellbore, the tool comprising a displacement unit for pumping a fluid at least partially through the tool, a first flowline hydraulically connected to the displacement unit through a valve network, and a second flowline hydraulically connected to the displacement unit; pumping a fluid from the first flowline to the second flowline; monitoring a pressure at a chamber of the displacement unit; and monitoring flowing pressure in the first flowline across the valve network from the displacement unit.Type: ApplicationFiled: November 16, 2009Publication date: May 19, 2011Inventors: Simon Ross, Pierre Campanac
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Publication number: 20110068787Abstract: The present invention relates to making one or more measurements in a virgin formation using a downhole tool that includes a miniature logging tool. The downhole tool is disposed in a wellbore penetrating the formation, adjacent to the formation, and a sidetrack borehole is made into the formation. All or a portion of the miniature logging tool is deployed into the sidetrack borehole and measurements are made in the virgin formation using the miniature logging tool. The downhole tool may include a drilling/coring module, a pump module, and packers. The drilling/coring module is used to make the sidetrack borehole, and the packers and pump module can be used to create an underbalanced drilling condition in an isolated section of the wellbore.Type: ApplicationFiled: September 18, 2009Publication date: March 24, 2011Inventors: Robert Freedman, Douglas W. Grant, Henry N. Bachman, Pierre Campanac
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Patent number: 7639563Abstract: A method for determining on a real time logging while drilling (LWD) basis the top of cement location between casing transition zones in a borehole using at least one sonic attributes of coherent energy, attenuation and slowness as a function of at least one of depth and time.Type: GrantFiled: December 27, 2007Date of Patent: December 29, 2009Assignee: Schlumberger Technology CorporationInventors: Peter T. Wu, Alain Dumont, Pierre Campanac
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Publication number: 20090168598Abstract: A method for estimating formation permeability from measured sonic wave Stoneley attributes and particularly the Stoneley attributes of slowness (DTst) and attenuation (ATTst), taking into consideration the existence of a heavy walled drill collar at the end of the drill string and the relative lack of borehole mud cake during a drilling operation. In the subject LWD application a real-time qualitative indication for fracture and permeable zones is estimated from Stoneley measurements. This information is useful to a driller to make important timely decisions about drilling and completion programs.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Applicant: Schlumberger Technology CorporationInventors: Peter T. Wu, Alain Dumont, Pierre Campanac, David Linton Johnson
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Publication number: 20090168596Abstract: A method for estimating formation porosity and lithology on a real time basis during a logging while drilling operation using measured values of formation attenuation attributes for compression and/or shear.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: PETER T. WU, ALAIN DUMONT, PIERRE CAMPANAC