Patent application number | Description | Published |
20130279291 | ACQUIRING NEAR-ZERO OFFSET SURVEY DATA - To acquire near-zero offset survey data, a survey source and a first streamer attached to the survey source are provided, where the first streamer has at least one survey receiver. A second streamer separate from the survey source and the first streamer includes survey receivers. Near-zero offset data is measured using the at least one survey receiver of the first streamer. | 10-24-2013 |
20130294195 | SEISMIC STREAMER SYSTEM AND METHOD - A seismic streamer system for acquiring seismic data includes a plurality of first cable sections each employing a first sensor configuration therein, and at least one second cable section operatively connected to one or more of the first cable sections and employing a second sensor configuration therein. In various embodiments of the streamer system, one or more of the second cable sections are sparsely integrated into a streamer, a streamer array and/or a seismic spread. The first sensor configuration may, e.g., include a conventional hydrophone distribution, and the second sensor configuration may, e.g., include multicomponent sensors such as at least one of a particle velocity sensor, a pressure gradient sensor, an accelerometer and a combination thereof. The present invention is useful for attenuating noise in the measured seismic data as well as deghosting the data. A particular deghosting process includes decomposing the up- and down-going parts of the vertical component of particle velocity associated with the acoustic wave reflections from the strata. | 11-07-2013 |
20140286127 | PROCESSING SEISMIC DATA TO ATTENUATE VIBRATION NOISE - A technique includes receiving first data acquired by at least a particle motion gradient sensor or a rotation sensor of a streamer that is subject to vibration due to towing of the streamer; and receiving second data acquired by at least one particle motion sensor of the streamer and being indicative of particle motion and vibration noise. The technique includes processing the second data in a processor-based machine to, based at least in part on the first data, attenuate the vibration noise indicated by the second data to generate third data indicative of the particle motion. | 09-25-2014 |
Patent application number | Description | Published |
20090097357 | Seismic Data Acquisition and Source-Side Derivatives Generation and Application - The technologies described herein include systems and methods for encoding/decoding seismic sources and responses, generating and using of source-side derivatives while also generating and using the conventional source response. Sources in an array may be encoded such that activation of each source in the array constitutes a single spike in a sequence orthogonal to another sequence emitted by another source. The responses to these different sources that are in close spatial proximity can be decoded and separated. Source-side derivatives may be calculated and utilized in various applications in combination with the monopole response from the source location, including source-side deghosting, spatial (horizontal and vertical) interpolation and imaging. | 04-16-2009 |
20110110188 | Seismic Data Acquisition and Source-Side Derivatives Generation and Application - The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image. | 05-12-2011 |
20110310700 | Seismic Data Acquisition and Source-Side Derivatives Generation and Application - The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image. | 12-22-2011 |
20130100763 | Seismic Data Acquisition and Source-Side Derivatives Generation and Application - The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image. | 04-25-2013 |
Patent application number | Description | Published |
20140160887 | TIME LAPSE MARINE SEISMIC SURVEYING EMPLOYING INTERPOLATED MULTICOMPONENT STREAMER PRESSURE DATA - In a first aspect, a method for use in a time lapse, marine seismic survey includes accessing a set of acquired, multicomponent seismic data; and interpolating a set of time lapse seismic data from the acquired seismic data. In other aspects, a program storage medium is encoded with instructions that, when executed by a computing device, perform the above method and a computing apparatus programmed to perform one or more of such methods. | 06-12-2014 |
20140192620 | COMBINING SEISMIC DATA FROM SENSORS TO ATTENUATE NOISE - To perform noise attenuation for seismic surveying, a sensor assembly is deployed on a ground surface, where the sensor assembly has a seismic sensor to measure seismic waves propagated through a subterranean structure, and a divergence sensor comprising a pressure sensor to measure noise. First data is received from the seismic sensor, and second data is received from the divergence sensor. The first data and the second data are combined to attenuate noise in the first data. | 07-10-2014 |
20140244177 | TIME LAPSE MARINE SEISMIC SURVEYING EMPLOYING INTERPOLATED MULTICOMPONENT STREAMER PRESSURE DATA - In a first aspect, a method for use in a time lapse, marine seismic survey includes accessing a set of acquired, multicomponent seismic data; and interpolating a set of time lapse seismic data from the acquired seismic data. In other aspects, a program storage medium is encoded with instructions that, when executed by a computing device, perform the above method and a computing apparatus programmed to perform one or more of such methods. | 08-28-2014 |
20140244179 | CONSTRUCTION AND REMOVAL OF SCATTERED GROUND ROLL USING INTERFEROMETRIC METHODS - A data set can be corrected for the effects of interface waves by interferometrically measuring an interface wavefield between each of a plurality of planned locations within a survey area; and correcting survey data acquired in the survey area for the interface waves. The interface wavefield may be interferometrically measured by receiving a wavefield including interface waves propagating within a survey area, the survey area including a plurality of planned survey locations therein; generating interface wave data representative of the received interface wavefield; and constructing a Green's function between each of the planned survey positions from the interface wave data. Other aspects include an apparatus by which the interface wavefield may be interferometrically measured and a computer apparatus programmed to correct the seismic data using the interferometrically measured interface wave data. | 08-28-2014 |
20140321239 | SEISMIC DATA ACQUISITION AND SOURCE-SIDE DERIVATIVES GENERATION AND APPLICATION - The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image. | 10-30-2014 |
Patent application number | Description | Published |
20080272737 | Wireless chargeable energy cell - One embodiment of the present invention discloses a circuitry and an element which can be activated, charged, or interacted using any useful source of EM-radiation which is able to emit a suitable EM-field, which circuitry or element can be produced in a cost-effective manner, as well as a method for charging the same. The circuitry or element includes an antenna for receiving and converting EM-radiation into electric energy; a rectifier for converting the energy to a rectified current, and a dechargeable energy cell. The energy cell includes, in at least one embodiment, a first and a second electrochemically active element, which are electronically separated from each other, and an electrolyte which is arranged in ionic contact with at least a portion of both the first and second electrochemically active element, wherein the energy cell is arranged to receive rectified current from the rectifier, and to convert the rectified current into stored energy by altering its electrochemical state in response to the rectified current. | 11-06-2008 |
20090303041 | Device for integrating and indicating a parameter over time - A device for integrating and indicating a parameter over, comprising: a first electrode ( | 12-10-2009 |
20130293031 | Diode, Use Thereof, And A Method For Producing The Same - High frequency currents may be rectified by means of a printable diode comprising a first and a second electrode, between which a semiconducting layer comprising semiconducting particles embedded in an inert matrix, and a conducting layer comprising conducting particles embedded in an inert matrix are arranged. | 11-07-2013 |