Patents by Inventor Gale Gustavson
Gale Gustavson 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: 8057752Abstract: A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the formation tester, including the reagent, downhole. Reagent from the reagent container is injected into formation fluid in the flow-line to make a mixture of formation fluid and reagent. The mixture is moved through a spectral analyzer cell in the fluids analyzer to produce a time-series of optical density measurements at a plurality of wavelengths. A characteristic of formation fluid is determined by spectral analysis of the time-series of optical density measurements.Type: GrantFiled: August 14, 2008Date of Patent: November 15, 2011Assignee: Schlumberger Technology CorporationInventors: Torleif Torgersen, Bhavani Raghuraman, Edward Harrigan, Oliver C. Mullins, Gale Gustavson, Philip Rabbito, Ricardo Reves Vasques
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Publication number: 20080259335Abstract: Methods and apparatuses for high-temperature and high-pressure measurement of pH and/or alkalinity of a fluid is described.Type: ApplicationFiled: June 13, 2008Publication date: October 23, 2008Applicant: Schlumberger Technology CorporationInventors: Bhavani Raghuraman, Moin Muhammad, Jinglin Gao, Craig Borman, Gale Gustavson, Philip Rabbito
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Patent number: 7427504Abstract: A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the formation tester, including the reagent, downhole. Reagent from the reagent container is injected into formation fluid in the flow-line to make a mixture of formation fluid and reagent. The mixture is moved through a spectral analyzer cell in the fluids analyzer to produce a time-series of optical density measurements at a plurality of wavelengths. A characteristic of formation fluid is determined by spectral analysis of the time-series of optical density measurements.Type: GrantFiled: September 22, 2003Date of Patent: September 23, 2008Assignee: Schlumber Technology CorporationInventors: Torleif Torgersen, Bhavani Raghuraman, Edward Harrigan, Oliver C. Mullins, Gale Gustavson, Philip Rabbito, Ricardo Reves Vasques
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Patent number: 7402424Abstract: Methods and apparatuses for high-temperature and high-pressure measurement of pH and/or alkalinity of a fluid is described.Type: GrantFiled: February 1, 2006Date of Patent: July 22, 2008Assignee: Schlumberger Technology CorporationInventors: Bhavani Raghuraman, Moin Muhammad, Jinglin Gao, Craig Borman, Gale Gustavson, Philip Rabbito
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Patent number: 7379819Abstract: Methods of assuring that a representative formation and/or fluid sample of a subterranean reservoir is obtained are provided. One method of validating a reservoir fluid sample obtained from a wellbore includes the steps of acquiring a reservoir fluid sample in the wellbore; measuring a property of the fluid sample downhole with a technique to obtain a measured downhole fluid property; replicating the measuring technique used to obtain the measured downhole fluid property to obtain at a remote location from the wellbore with a technique to obtain at least one measured remote location fluid property; validating the fluid sample through comparison of the measured downhole fluid property and the at least one measured remote location fluid property.Type: GrantFiled: November 17, 2006Date of Patent: May 27, 2008Assignee: Schlumberger Technology CorporationInventors: Soraya Sofia Betancourt, Ahmed Hammami, John Allan Nighswander, Syriac George Mathews, Bhavani Raghuraman, Gale Gustavson, Lennox Reid, Tara Davies, Oliver C. Mullins
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Publication number: 20070178595Abstract: Methods and apparatuses for high-temperature and high-pressure measurement of pH and/or alkalinity of a fluid is described.Type: ApplicationFiled: February 1, 2006Publication date: August 2, 2007Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Bhavani Raghuraman, Moin Muhammad, Jinglin Gao, Craig Borman, Gale Gustavson, Philip Rabbito
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Publication number: 20070143023Abstract: Methods of assuring that a representative formation and/or fluid sample of a subterranean reservoir is obtained are provided. One method of validating a reservoir fluid sample obtained from a wellbore includes the steps of acquiring a reservoir fluid sample in the wellbore; measuring a property of the fluid sample downhole with a technique to obtain a measured downhole fluid property; replicating the measuring technique used to obtain the measured downhole fluid property to obtain at a remote location from the wellbore with a technique to obtain at least one measured remote location fluid property; validating the fluid sample through comparison of the measured downhole fluid property and the at least one measured remote location fluid property.Type: ApplicationFiled: November 17, 2006Publication date: June 21, 2007Applicant: Schlumberger Technology CorporationInventors: Soraya Betancourt, Ahmed Hammami, John Nighswander, Syriac Mathews, Bhavani Raghuraman, Gale Gustavson, Lennox Reid, Tara Davies
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Patent number: 7095676Abstract: Tube waves are used to locate and characterize a solids deposit inside a fluid-filled pipe. An acoustic tube wave pulse is transmitted along the pipe. On encountering a solids deposit, the tube wave pulse is perturbed and partially reflected by changes in the boundary conditions between the fluid and the pipe to produce two deposit-modified acoustic waves. One is a perturbed wave travelling in the same direction as the tube wave pulse. The other is a reflected wave travelling in the opposite direction. One of these deposit-modified acoustic waves is received to produce an acoustic signal. Accumulated acoustic signals are processed by Fast-Fourier Transform to produce frequency-based digital data. Phase data from the frequency-based digital data is inverted to produce slowness spectrum data. Power data from the frequency-based digital data is inverted to produce attenuation spectrum data. Spectrum data is used to locate a solids deposit in the pipe.Type: GrantFiled: March 29, 2002Date of Patent: August 22, 2006Assignee: Schlumberger Technology CorporationInventors: Ralph M. D'Angelo, Kenneth W. Winkler, David L. Johnson, Gale Gustavson, Oliver C. Mullins
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Publication number: 20060163467Abstract: The invention concerns an apparatus for analysing water chemistry. According to the invention, the apparatus is adapted to operate downhole and comprises a colouring agent supply device for supplying a colouring agent to a water sample, the colour of the water sample thus supplied being indicative of the water sample chemistry, and a colorimetric analyser arranged to determine the colour of the water sample.Type: ApplicationFiled: November 19, 2003Publication date: July 27, 2006Inventors: Bhavani Raghuraman, Anthony Goodwin, Oliver Mullins, Philip Rabbito, Li Jiang, Timothy Jones, Andrew Kurkjian, Gale Gustavson
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Publication number: 20040129874Abstract: A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the formation tester, including the reagent, downhole. Reagent from the reagent container is injected into formation fluid in the flow-line to make a mixture of formation fluid and reagent. The mixture is moved through a spectral analyzer cell in the fluids analyzer to produce a time-series of optical density measurements at a plurality of wavelengths. A characteristic of formation fluid is determined by spectral analysis of the time-series of optical density measurements.Type: ApplicationFiled: September 22, 2003Publication date: July 8, 2004Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Torleif Torgersen, Bhavani Raghuraman, Edward Harrigan, Oliver C. Mullins, Gale Gustavson, Philip Rabbito, Ricardo Reves Vasques
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Publication number: 20030185100Abstract: Tube waves are used to locate and characterize a solids deposit inside a fluid-filled pipe. An acoustic tube wave pulse is transmitted along the pipe. On encountering a solids deposit, the tube wave pulse is perturbed and partially reflected by changes in the boundary conditions between the fluid and the pipe to produce two deposit-modified acoustic waves. One is a perturbed wave travelling in the same direction as the tube wave pulse. The other is a reflected wave travelling in the opposite direction. One of these deposit-modified acoustic waves is received to produce an acoustic signal. Accumulated acoustic signals are processed by Fast-Fourier Transform to produce frequency-based digital data. Phase data from the frequency-based digital data is inverted to produce slowness spectrum data. Power data from the frequency-based digital data is inverted to produce attenuation spectrum data. Spectrum data is used to locate a solids deposit in the pipe.Type: ApplicationFiled: March 29, 2002Publication date: October 2, 2003Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Ralph M. D'Angelo, Kenneth W. Winkler, David L. Johnson, Gale Gustavson, Oliver C. Mullins