Patents by Inventor Philip L. Kurkoski
Philip L. Kurkoski 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: 8269162Abstract: Measurements made by a wireline-conveyed pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and/or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect.Type: GrantFiled: November 4, 2008Date of Patent: September 18, 2012Assignee: Baker Hughes IncorporatedInventors: Andrew D. Kirkwood, Philip L. Kurkoski
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Patent number: 8049164Abstract: Measurements made by a natural gamma ray tool are used to provide an elemental composition of an earth formation. Additional measurements made with a pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and/or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect.Type: GrantFiled: November 4, 2008Date of Patent: November 1, 2011Assignee: Baker Hughes IncorporatedInventors: Andrew D. Kirkwood, Philip L. Kurkoski, Richard R. Pemper
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Patent number: 8015868Abstract: Caliper measurements made during rotation of an imager on a logging string are processed to estimate the location of the imager, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: March 19, 2008Date of Patent: September 13, 2011Assignee: Baker Hughes IncorporatedInventors: Gamal A. Hassan, Philip L. Kurkoski
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Patent number: 7966874Abstract: Harmonics and subharmonics of acoustic measurements made during rotation of a sensor on a downhole are processed to estimate the location of the imager, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool.Type: GrantFiled: June 11, 2008Date of Patent: June 28, 2011Assignee: Baker Hughes IncorporatedInventors: Gamal A. Hassan, James V. Leggett, III, Gavin Lindsay, Philip L. Kurkoski
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Patent number: 7880134Abstract: Measurements made by a pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and/or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).Type: GrantFiled: November 7, 2007Date of Patent: February 1, 2011Assignee: Baker Hughes IncorporatedInventors: Andrew D. Kirkwood, Philip L. Kurkoski
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Patent number: 7763845Abstract: A photodiode whose long-wavelength cutoff is in the short-wavelength range (preferably, between ultraviolet and yellowish-green) having reduced temperature sensitivity is used in downhole applications. It may be matched with scintillation devices having an output matched to the response curve of the photodiode for use with nuclear logging devices. The photodiode may also be used in gyroscopes in which light from an LED matched to the photodiode is reflected from a spinning mass.Type: GrantFiled: August 14, 2006Date of Patent: July 27, 2010Assignee: Baker Hughes IncorporatedInventors: Robert A. Estes, Rocco DiFoggio, Eric B. Molz, Constantyn Chalitsios, Philip L. Kurkoski
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Patent number: 7647182Abstract: The present invention provides a method and apparatus for logging an earth formation and acquiring subsurface information wherein a logging tool is conveyed in borehole to obtain parameters of interest. The parameters of interest obtained may be density, acoustic, magnetic or electrical values as known in the art. The parameters of interest may be transmitted to the surface at a plurality of resolutions using a multi-resolution image compression method. Parameters of interest are formed into a plurality of Cost Functions from which Regions of Interest are determined to resolve characteristics of the Features of interest within the Regions. Feature characteristics may be determined to obtain time or depth positions of bed boundaries and borehole Dip Angle relative to subsurface structures, as well borehole and subsurface structure orientation. Characteristics of the Features include time, depth, and geometries of the subsurface such as structural dip, thickness, and lithologies.Type: GrantFiled: January 13, 2006Date of Patent: January 12, 2010Assignee: Baker Hughes IncorporatedInventors: Gamal A. Hassan, Philip L. Kurkoski
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Publication number: 20090276158Abstract: Measurements made by a wireline-conveyed pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and/or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect.Type: ApplicationFiled: November 4, 2008Publication date: November 5, 2009Applicant: BAKER HUGHES INCORPORATEDInventors: Andrew D. Kirkwood, Philip L. Kurkoski
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Patent number: 7596452Abstract: A logging-while-drilling density sensor includes a gamma ray source and at least two NaI detectors spaced apart from the source for determining measurements indicative of the formation density. An analytic function based on a heuristic model is used to predict the measured response as a function of offset, mud density and formation density. The model may be used to provide a caliper measurement where acoustic caliper data are unreliable.Type: GrantFiled: August 10, 2007Date of Patent: September 29, 2009Assignee: Baker Hughes IncorporatedInventors: William Madigan, Eric B. Molz, Gamal A. Hassan, Philip L. Kurkoski
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Patent number: 7573026Abstract: A correction for pileup of measurements made by a nuclear detector is applied by selecting the energy of the first signal in a pileup, ignoring the remaining signals in the pileup, and correcting the count rate by a factor related to the total pulse widths within a unit time interval. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: June 14, 2007Date of Patent: August 11, 2009Assignee: Baker Hughes IncorporatedInventors: Philip L. Kurkoski, Tuan V. Nguyen
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Patent number: 7548817Abstract: Caliper measurements made during rotation of a bottomhole assembly are processed to estimate the location of the BHA, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool.Type: GrantFiled: September 27, 2007Date of Patent: June 16, 2009Assignee: Baker Hughes IncorporatedInventors: Gamal A. Hassan, Philip L. Kurkoski, Pingjun Guo
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Publication number: 20090114807Abstract: Measurements made by a pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and/or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).Type: ApplicationFiled: November 7, 2007Publication date: May 7, 2009Applicant: Baker Hughes IncorporatedInventors: Andrew D. Kirkwood, Philip L. Kurkoski
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Publication number: 20090114806Abstract: Measurements made by a natural gamma ray tool are used to provide an elemental composition of an earth formation. Additional measurements made with a pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and/or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect.Type: ApplicationFiled: November 4, 2008Publication date: May 7, 2009Applicant: BAKER HUGHES INCORPORATEDInventors: Andrew D. Kirkwood, Philip L. Kurkoski, Richard R. Pemper
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Publication number: 20090084176Abstract: Caliper measurements made during rotation of an imager on a logging string are processed to estimate the location of the imager, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).Type: ApplicationFiled: March 19, 2008Publication date: April 2, 2009Applicant: BAKER HUGHES INCORPORATEDInventors: Gamal A. Hassan, Philip L. Kurkoski
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Publication number: 20090043509Abstract: A logging-while-drilling density sensor includes a gamma ray source and at least two NaI detectors spaced apart from the source for determining measurements indicative of the formation density. An analytic function based on a heuristic model is used to predict the measured response as a function of offset, mud density and formation density. The model may be used to provide a caliper measurement where acoustic caliper data are unreliable. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understand that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).Type: ApplicationFiled: August 10, 2007Publication date: February 12, 2009Applicant: BAKER HUGHES INCORPORATEDInventors: William Madigan, Eric B. Molz, Gamal A. Hassan, Philip L. Kurkoski
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Publication number: 20080307875Abstract: Harmonics and subharmonics of acoustic measurements made during rotation of a sensor on a downhole are processed to estimate the location of the imager, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool.Type: ApplicationFiled: June 11, 2008Publication date: December 18, 2008Applicant: BAKER HUGHES INCORPORATEDInventors: Gamal A. Hassan, James V. Leggett, III, Gavin Lindsay, Philip L. Kurkoski
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Patent number: 7424365Abstract: A data compression technique for MWD applications uses feature detection, extraction, followed by image compression for only the region(s) of interest. The detection approach processes data in real time. It triggers on the start and end of a feature without processing any further features. This provides feature detection with zero latency. Compressing only the region of interest provides data compression with both higher resolution and higher compression ratio.Type: GrantFiled: July 13, 2006Date of Patent: September 9, 2008Assignee: Baker Hughes IncorporatedInventors: Gamal A. Hassan, Philip L. Kurkoski
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Publication number: 20080120035Abstract: The present invention provides a method and apparatus for logging an earth formation and acquiring subsurface information wherein a logging tool is conveyed in borehole to obtain parameters of interest. The parameters of interest obtained may be density, acoustic, magnetic or electrical values as known in the art. The parameters of interest may be transmitted to the surface at a plurality of resolutions using a multi-resolution image compression method. Parameters of interest are formed into a plurality of Cost Functions from which Regions of Interest are determined to resolve characteristics of the Features of interest within the Regions. Feature characteristics may be determined to obtain time or depth positions of bed boundaries and borehole Dip Angle relative to subsurface structures, as well borehole and subsurface structure orientation. Characteristics of the Features include time, depth, and geometries of the subsurface such as structural dip, thickness, and lithologies.Type: ApplicationFiled: January 13, 2006Publication date: May 22, 2008Applicant: Baker Hughes IncorporatedInventors: Gamal A. Hassan, Philip L. Kurkoski
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Publication number: 20080078242Abstract: Caliper measurements made during rotation of a bottomhole assembly are processed to estimate the location of the BHA, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: ApplicationFiled: September 27, 2007Publication date: April 3, 2008Applicant: BAKER HUGHES INCORPORATEDInventors: Gamal A. Hassan, Philip L. Kurkoski, Pingjun Guo
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Publication number: 20070290126Abstract: A correction for pileup of measurements made by a nuclear detector is applied by selecting the energy of the first signal in a pileup, ignoring the remaining signals in the pileup, and correcting the count rate by a factor related to the total pulse widths within a unit time interval. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: ApplicationFiled: June 14, 2007Publication date: December 20, 2007Applicant: BAKER HUGHES INCORPORATEDInventors: Philip L. Kurkoski, Tuan V. Nguyen