Patents by Inventor Henry N. Bachman
Henry N. Bachman 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: 10718701Abstract: A method for determining a wettability of a subterranean formation (or formation core) includes either deploying a nuclear magnetic resonance (NMR) logging tool in a subterranean wellbore or deploying a formation core sample in a laboratory based NMR tool. NMR measurements of the formation (or formation core) are obtained and used to compute the wettability. The NMR measurements are processed to generate a two dimensional diffusion relaxation map (a D/T2 map) which is in turn processed to compute the wettability.Type: GrantFiled: May 5, 2016Date of Patent: July 21, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Chanh Cao Minh, Steve Crary, Philip M. Singer, Andrea Valori, Henry N. Bachman
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Publication number: 20160334346Abstract: A method for determining a wettability of a subterranean formation (or formation core) includes either deploying a nuclear magnetic resonance (NMR) logging tool in a subterranean wellbore or deploying a formation core sample in a laboratory based NMR tool. NMR measurements of the formation (or formation core) are obtained and used to compute the wettability. The NMR measurements are processed to generate a two dimensional diffusion relaxation map (a D/T2 map) which is in turn processed to compute the wettability.Type: ApplicationFiled: May 5, 2016Publication date: November 17, 2016Inventors: Chanh Cao Minh, Steve Crary, Philip M. Singer, Andrea Valori, Henry N. Bachman
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Patent number: 9405037Abstract: Methods are described for wettability characterization based on NMR measurements, which are sensitive to the surface wetting conditions of oil and water at the pore scale. The described methods make use of surface relaxation effects on the NMR relaxation (T2). Workflows are described to obtain wettability profiles of a porous media such as a rock either in the native state or prepared to a certain state in the laboratory. An underlying forward model is also described for the mixed wet and fractionally saturated pore spectrum. Outputs of the described inversion include continuous saturation and wettability profiles as a function of the pore sizes in the porous media, as well as an averaged value for saturation and wettability over the entire pore spectrum.Type: GrantFiled: April 1, 2013Date of Patent: August 2, 2016Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, SAUDI ARAMCOInventors: Ahmed Al-Muthana, Gabor Hursan, Shouxiang Ma, Philip M. Singer, Benjamin Nicot, Andrea Valori, Farhan Ali, Henry N. Bachman
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Patent number: 8794318Abstract: Subsurface formation evaluation comprising, for example, sealing a portion of a wall of a wellbore penetrating the formation, forming a hole through the sealed portion of the wellbore wall, injecting an injection fluid into the formation through the hole, and determining a saturation of the injection fluid in the formation by measuring a property of the formation proximate the hole while maintaining the sealed portion of the wellbore wall.Type: GrantFiled: July 9, 2009Date of Patent: August 5, 2014Assignee: Schlumberger Technology CorporationInventors: Edward Harrigan, Yves Barriol, Andrei I. Davydychev, Andrew J. Carnegie, Dean M. Homan, Srinand Karuppoor, Yi-Qiao Song, Tim Hopper, Henry N. Bachman, William B. Vandermeer, Anthony L. Collins, Mark A. Fredette
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Patent number: 8783346Abstract: In one embodiment, an apparatus includes an antenna having a conductive winding, with the antenna disposed about a channel. A characteristic improvement material is disposed between the antenna and the channel. In some embodiments, the characteristic improvement material includes at least one of a negative stiffness material or a negative Poisson's ratio material. Various systems and methods are also disclosed herein.Type: GrantFiled: June 4, 2013Date of Patent: July 22, 2014Assignee: Schlumberger Technology CorporationInventors: Reza Taherian, Henry N. Bachman
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Publication number: 20130325348Abstract: Systems and methods for quickly determining wettability using a derived relationship between the two Nuclear Magnetic Resonance (NMR) relaxation times T1,oil and T2,oil combined with downhole or laboratory based NMR measurements. The derived relationship between T1,oil, T2,oil and wettability can be developed empirically for example from core-sample data. Once the relationship is defined, it can be used in the field or laboratory to quickly determine wettability from NMR measurements that measure T1,oil and T2,oil directly, or a function depending on them.Type: ApplicationFiled: May 31, 2012Publication date: December 5, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: ANDREA VALORI, MARTIN D. HÜRLIMANN, BENJAMIN NICOT, HENRY N. BACHMAN
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Publication number: 20130264050Abstract: In one embodiment, an apparatus includes an antenna having a conductive winding, with the antenna disposed about a channel. A characteristic improvement material is disposed between the antenna and the channel. In some embodiments, the characteristic improvement material includes at least one of a negative stiffness material or a negative Poisson's ratio material. Various systems and methods are also disclosed herein.Type: ApplicationFiled: June 4, 2013Publication date: October 10, 2013Inventors: Reza Taherian, Henry N. Bachman
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Publication number: 20130261979Abstract: Methods are described for wettability characterization based on NMR measurements, which are sensitive to the surface wetting conditions of oil and water at the pore scale. The described methods make use of surface relaxation effects on the NMR relaxation (T2). Workflows are described to obtain wettability profiles of a porous media such as a rock either in the native state or prepared to a certain state in the laboratory. An underlying forward model is also described for the mixed wet and fractionally saturated pore spectrum. Outputs of the described inversion include continuous saturation and wettability profiles as a function of the pore sizes in the porous media, as well as an averaged value for saturation and wettability over the entire pore spectrum.Type: ApplicationFiled: April 1, 2013Publication date: October 3, 2013Inventors: AHMED AL-MUTHANA, GABOR HURSAN, SHOUXIANG MA, PHILIP M. SINGER, BENJAMIN NICOT, ANDREA VALORI, FARHAN ALI, HENRY N. BACHMAN
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Patent number: 8547093Abstract: A method and system for performing speed correction on nuclear magnetic resonance logging data is provided. The speed correction performed can be done on a representation of echo data received by a logging tool, and then additively applied to the echo data. Such a process can reduce or remove the amplification of noise in the echo data that is common in conventional methods of speed correction.Type: GrantFiled: July 30, 2010Date of Patent: October 1, 2013Assignee: Schlumberger Technology CorporationInventors: Chanh Cao Minh, Jack LaVigne, Steve Crary, Henry N. Bachman
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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: 8453730Abstract: A technique improves the operational characteristics of a well device while the device is used in a wellbore environment. The well device benefits from a unique material, in the form of a negative stiffness material or a negative Poisson's ratio material, positioned to improve the operational characteristics of the well device. The material can be located to reduce vibration and/or other detrimental effects that can interfere with operation of the well device.Type: GrantFiled: May 23, 2008Date of Patent: June 4, 2013Assignee: Schlumberger Technology CorporationInventors: Reza Taherian, Henry N. Bachman
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Publication number: 20120025820Abstract: A method and system for performing speed correction on nuclear magnetic resonance logging data is provided. The speed correction performed can be done on a representation of echo data received by a logging tool, and then additively applied to the echo data. Such a process can reduce or remove the amplification of noise in the echo data that is common in conventional methods of speed correction.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Inventors: CHANH CAO MINH, Jack LaVigne, Steven Crary, Henry N. Bachman
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Publication number: 20110198078Abstract: Subsurface formation evaluation comprising, for example, sealing a portion of a wall of a wellbore penetrating the formation, forming a hole through the sealed portion of the wellbore wall, injecting an injection fluid into the formation through the hole, and determining a saturation of the injection fluid in the formation by measuring a property of the formation proximate the hole while maintaining the sealed portion of the wellbore wall.Type: ApplicationFiled: July 9, 2009Publication date: August 18, 2011Inventors: Edward Harrigan, Yves BarrioL, Andrei I. Davydychev, Andrew J. Carnegie, Dean M. Homan, Srinand Karuppoor, Yi-Qiao Song, Tim Hopper, Henry N. Bachman, William B. Vandermeer, Anthony L. Collins, Mark A. Fredette
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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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Publication number: 20090288819Abstract: A technique improves the operational characteristics of a well device while the device is used in a wellbore environment. The well device benefits from a unique material, in the form of a negative stiffness material or a negative Poisson's ratio material, positioned to improve the operational characteristics of the well device. The material can be located to reduce vibration and/or other detrimental effects that can interfere with operation of the well device.Type: ApplicationFiled: May 23, 2008Publication date: November 26, 2009Applicant: Schlumberger Technology CorporationInventors: Reza Taherian, Henry N. Bachman
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Patent number: 7603237Abstract: A method to determine formation properties using two or more data sets in which the solutions corresponding to the data sets represent shared and distinct formation properties. The method analyzes the data sets and computes distributions for the shared and distinct formation properties from which the formation properties are determined.Type: GrantFiled: June 20, 2007Date of Patent: October 13, 2009Assignee: Schlumberger Technology CorporationInventors: Nicholas J. Heaton, Jack A. La Vigne, Ralf Heidler, Henry N. Bachman
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Publication number: 20080082270Abstract: A method to determine formation properties using two or more data sets in which the solutions corresponding to the data sets represent shared and distinct formation properties. The method analyzes the data sets and computes distributions for the shared and distinct formation properties from which the formation properties are determined.Type: ApplicationFiled: June 20, 2007Publication date: April 3, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nicholas J. Heaton, Jack A. La Vigne, Ralf Heidler, Henry N. Bachman