Patents by Inventor John Sallas
John Sallas 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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Publication number: 20140254318Abstract: According to an embodiment, a seismic receiver device is described for use in a borehole surrounded by an ambient material, e.g., rock, mud, etc. The seismic receiver device includes a pressure wave measuring device which is configured to sense pressure changes associated with received seismic waves, a coating layer disposed on the pressure wave measuring device, and an outer layer disposed on the coating layer which is made of a material that is selected to have a bulk modulus number that is substantially similar to a bulk modulus number of the ambient medium. In this way, the acoustic impedance of the device is better matched to the ambient material so that more accurate seismic acquisition may be performed.Type: ApplicationFiled: February 3, 2014Publication date: September 11, 2014Applicant: CGG SERVICES SAInventors: Peter MAXWELL, John SALLAS
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Publication number: 20140254313Abstract: A resonant source element configured to generate seismic waves. The resonant source element includes a housing; a high-pressure system configured to be discharged inside the housing; and a first conduit attached to an opening of the housing, wherein a distal end of the first conduit freely communicates with an ambient.Type: ApplicationFiled: January 27, 2014Publication date: September 11, 2014Applicant: CGG SERVICES SAInventors: Robert DOWLE, Hervé RICHER DE FORGES, John SALLAS
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Publication number: 20140241116Abstract: Method and controller for finding a best distribution of source elements that form a vibratory source array. The method includes inputting plural constraints for the source elements; generating plural distributions of the source elements that fulfill the plural constraints; calculating for each distribution a first attribute characterizing the source array; and selecting the best distribution from the plural distributions based on a value of the first attribute.Type: ApplicationFiled: January 28, 2014Publication date: August 28, 2014Applicant: CGG SERVICES SAInventors: John SALLAS, Benoit TEYSSANDIER
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Publication number: 20140241123Abstract: A source array generates seismic waves in water during a marine seismic survey. The source array includes a first sub-array including plural source elements; plural acoustic transceivers distributed along the first sub-array; a positioning system; a primary position control device configured to control a position of the first sub-array; and a secondary position control system configured to adjust a depth of the first sub-array.Type: ApplicationFiled: January 24, 2014Publication date: August 28, 2014Applicant: CGG SERVICES SAInventors: John SALLAS, Benoit TEYSSANDIER, Robert DOWLE
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Publication number: 20140238773Abstract: Method, source array and source element that generate seismic waves. The source element includes an enclosure having an opening covered by a piston; a local supply accumulator fluidly communicating with an interior of the enclosure, a pressure of the fluid inside the local supply accumulator being larger than a pressure of the fluid inside the enclosure; a local supply valve located between the local supply accumulator and the enclosure and configured to control a flow of the fluid from the local supply accumulator to the interior of the enclosure; and a controller configured to control the local supply valve such that the pressure inside the enclosure does not fall below a first preset value based upon an ambient pressure of the enclosure while seismic waves are generated.Type: ApplicationFiled: February 4, 2014Publication date: August 28, 2014Applicant: CGG SERVICES SAInventors: John SALLAS, Thierry AMEIL, Robert DOWLE, Dominique THOMAS
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Publication number: 20140211590Abstract: Method for separating signals recorded by a seismic receiver and generated with at least two vibratory seismic sources driven with no listening time. The method includes receiving seismic data that includes data d recorded by the seismic receiver and data related to the first and second vibratory seismic sources; computing a source separation matrix based on the data related to the first and second vibratory seismic sources; calculating first and second earth impulse responses HA and HB corresponding to the two vibratory seismic sources, respectively, based on the data d recorded by the seismic receiver, the data related to the two vibratory seismic sources and the source separation matrix; and separating the signals recorded by the seismic receiver based on the first and second earth impulse responses HA and HB such that signals the two vibratory seismic sources are disentangled.Type: ApplicationFiled: March 27, 2014Publication date: July 31, 2014Applicant: CGGVERITAS SERVICES SAInventor: John SALLAS
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Publication number: 20140169132Abstract: Controller and method for generating a frequency sweep for a seismic survey that uses a seismic source. The method includes receiving specification data about the seismic source; receiving environmental data about an infrastructure affected by the seismic survey; receiving guideline data about the infrastructure; setting a target energy spectrum density to be emitted by the seismic source during the seismic survey; and calculating, in a processor, the frequency sweep based on the specification data, environmental data, guideline data and the target energy spectrum density.Type: ApplicationFiled: November 18, 2013Publication date: June 19, 2014Applicant: CGG SERVICES SAInventors: John SALLAS, Olivier WINTER
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Publication number: 20140133272Abstract: Method for generating an excitation signal for a first vibratory seismic source so that the first vibratory seismic source is driven with no listening time. The method includes a step of determining a first target spectrum for the first vibratory seismic source; a step of setting a first group of constraints for the first vibratory seismic source; and a step of generating a first excitation signal for the first vibratory seismic source based on the first group of constraints and the first target spectrum. The first seismic traces recorded with plural receivers can be identified when the first vibratory seismic source is driven with no listening time, based on the first excitation signal.Type: ApplicationFiled: December 11, 2013Publication date: May 15, 2014Applicant: CGG SERVICES SAInventors: John SALLAS, Robert DOWLE, Laurent RUET, Benoit TEYSSANDIER
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Publication number: 20140133271Abstract: Method for separating signals recorded by a seismic receiver and generated with at least two vibratory seismic sources driven with no listening time. The method includes receiving seismic data that includes data d recorded by the seismic receiver and data related to the first and second vibratory seismic sources; computing a source separation matrix based on the data related to the first and second vibratory seismic sources; calculating first and second earth impulse responses HA and HB corresponding to the two vibratory seismic sources, respectively, based on the data d recorded by the seismic receiver, the data related to the two vibratory seismic sources and the source separation matrix; and separating the signals recorded by the seismic receiver based on the first and second earth impulse responses HA and HB such that signals the two vibratory seismic sources are disentangled.Type: ApplicationFiled: November 15, 2012Publication date: May 15, 2014Applicant: CGGVERITAS SERVICES SAInventor: John SALLAS
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Patent number: 8724428Abstract: Method for separating signals recorded by a seismic receiver and generated with at least two vibratory seismic sources driven with no listening time. The method includes receiving seismic data that includes data d recorded by the seismic receiver and data related to the first and second vibratory seismic sources; computing a source separation matrix based on the data related to the first and second vibratory seismic sources; calculating first and second earth impulse responses HA and HB corresponding to the two vibratory seismic sources, respectively, based on the data d recorded by the seismic receiver, the data related to the two vibratory seismic sources and the source separation matrix; and separating the signals recorded by the seismic receiver based on the first and second earth impulse responses HA and HB such that signals the two vibratory seismic sources are disentangled.Type: GrantFiled: November 15, 2012Date of Patent: May 13, 2014Assignee: CGGVeritas Services SAInventor: John Sallas
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Publication number: 20140112098Abstract: A method for calculating intermodulation noise generated with one or more land seismic sources. The method includes receiving seismic data (g) generated by actuating the one or more land seismic source with a single sweep; selecting a number of detectors (a-f) that detect a subset (ga-gf) of the seismic data (g); estimating earth responses (ha1-hf1) based on (i) the subset seismic data (ga-gf) and (ii) a ground force (gf) of the one or more land seismic source; calculating plural intermodulation noises (noiseA1-noiseF1) for the number of detectors based on the earth responses (ha1-hf1); and removing the plural intermodulation noises (noiseA1-noiseF1) from corresponding detector signals (ga-gf) to mitigate the intermodulation noise effect.Type: ApplicationFiled: March 15, 2013Publication date: April 24, 2014Applicant: CGGVERITAS SERVICES SAInventor: John SALLAS
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Publication number: 20140114578Abstract: A method for calculating intermodulation noise generated with one or more land seismic sources. The method includes receiving seismic data generated by actuating the one or more land seismic source with a first sweep and a second sweep; calculating with a computing device a first earth response corresponding to the first sweep; calculating with the computing device a second earth response corresponding to the second sweep; and calculating the intermodulation noise based on the first and second earth responses. The second sweep is a time reverse sweep of the first sweep.Type: ApplicationFiled: March 15, 2013Publication date: April 24, 2014Applicant: CGGVERITAS SERVICES SAInventor: John SALLAS
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Publication number: 20140043937Abstract: Controller and method for adapting a frequency sweep for a vibro-acoustic source element that is configured to generate acoustic waves during a seismic survey. The method includes driving a seismic source element to generate a current frequency sweep; recording seismic data with plural seismic sensors in response to the current frequency sweep; selecting, during the seismic survey, a data subset of the seismic data, wherein the data subset has a size less than 10% of the seismic data; calculating with a processing device an attribute based on the data subset; and calculating a new frequency sweep based on the attribute.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicant: CGG Services SAInventors: Benoit TEYSSANDIER, Robert DOWLE, Laurent RUET, John SALLAS
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Patent number: 8619497Abstract: Method for generating an excitation signal for a first vibratory seismic source so that the first vibratory seismic source is driven with no listening time. The method includes a step of determining a first target spectrum for the first vibratory seismic source; a step of setting a first group of constraints for the first vibratory seismic source; and a step of generating a first excitation signal for the first vibratory seismic source based on the first group of constraints and the first target spectrum. The first seismic traces recorded with plural receivers can be identified when the first vibratory seismic source is driven with no listening time, based on the first excitation signal.Type: GrantFiled: November 15, 2012Date of Patent: December 31, 2013Assignee: CGGVeritas Services SAInventors: John Sallas, Robert Dowle, Laurent Ruet, Benoit Teyssandier
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Patent number: 8134891Abstract: A seismic source signal generator having feed-forward control uses pressure, current, and/or valve position sensors to detect system component parameters. Initial and operating parameters are processed during source operation to remove, partially or wholly, harmonic distortions from the seismic source signal.Type: GrantFiled: March 16, 2011Date of Patent: March 13, 2012Assignee: INOVA Ltd.Inventors: Zhouhong Wei, John Sallas
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Publication number: 20110164470Abstract: A seismic source signal generator having feed-forward control uses pressure, current, and/or valve position sensors to detect system component parameters. Initial and operating parameters are processed during source operation to remove, partially or wholly, harmonic distortions from the seismic source signal.Type: ApplicationFiled: March 16, 2011Publication date: July 7, 2011Applicant: Inova Ltd.Inventors: Zhouhong Wei, John Sallas
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Patent number: 7929380Abstract: A seismic source signal generator having feed-forward control having pressure, current and/or valve position sensors that detect system component parameters. Initial and operating parameters are processed during source operation to remove, partially or wholly, harmonic distortions from the seismic source signal.Type: GrantFiled: March 27, 2007Date of Patent: April 19, 2011Assignee: Inova Ltd.Inventors: Zhouhong Wei, John Sallas
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Publication number: 20070250269Abstract: A seismic source signal generator having feed-forward control having pressure, current and/or valve position sensors that detect system component parameters. Initial and operating parameters are processed during source operation to remove, partially or wholly, harmonic distortions from the seismic source signal.Type: ApplicationFiled: March 27, 2007Publication date: October 25, 2007Applicant: Input/Output, Inc.Inventors: Zhouhong Wei, John Sallas