Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8184502 | Rock physics model for simulating seismic response in layered fractured rocks Method for modeling anisotropic elastic properties of a subsurface region comprising mixed fractured rocks and other geological bodies. P-wave and fast and slow S-wave logs are obtained, and an anisotropic rock physics model of the subsurface region is developed ( | 05/22/2012 |
| 8179740 | Time reverse reservoir localization with borehole data A method and system for processing synchronous array seismic data includes acquiring synchronous passive seismic data from a plurality of sensors to obtain synchronized array measurements. A reverse-time data process is applied to the synchronized array measurements... | 05/15/2012 |
| 8164979 | System and method for acquisition and processing of elastic wavefield seismic data A system and method of acquiring and processing full elastic waveform data from a vertical-force source comprises providing seismic waves into the earth from the vertical-force source, sensing reflections of the seismic waves at multi-component geophones placed alon... | 04/24/2012 |
| 8139440 | Spectral conditioning for surface seismic data A method for spectrally conditioning surface seismic data. In one implementation, the method may include correcting surface seismic data for distortions due to anomalous spectral amplitudes, thereby generating a first set of corrected data; correcting the first set ... | 03/20/2012 |
| 8068384 | Time reverse reservoir localization A method and system for processing synchronous array seismic data includes acquiring synchronous passive seismic data from a plurality of sensors to obtain synchronized array measurements. A reverse-time data process is applied to the synchronized array measurements... | 11/29/2011 |
| 8064287 | Method for interpreting seismic data and controlled source electromagnetic data to estimate subsurface reservoir properties A method for mapping a property of a subsurface reservoir includes determining a value of at least one reservoir property from measurements obtained from a well drilled through the reservoir. A relationship is determined between the at least one property of the rese... | 11/22/2011 |
| 8040754 | System and method for acquisition and processing of elastic wavefield seismic data A system and method of acquiring and processing full elastic waveform data from a vertical-force source comprises providing seismic waves into the earth from the vertical-force source, sensing reflections of the seismic waves at multi-component geophones placed alon... | 10/18/2011 |
| 8031555 | Seismic location and communication system A method and system for determining the location of miners trapped in an underground mine that includes recording a reference seismic signature for each of a plurality of underground base stations in the mine in advance of an emergency. The reference seismic signatu... | 10/04/2011 |
| 8014229 | Method for seismic exploration The invention relates to a method for seismic exploration, comprising the steps of controlling a plurality of sources so that they emit a plurality of seismic waves in a subsurface zone to be explored, each source successively occupying a plurality of emitter positi... | 09/06/2011 |
| 7978563 | Method for passive seismic emission tomography including polarization correction for source mechanism A method for seismic event mapping includes selecting a plurality of subvolumes representing possible locations of origin of a seismic event in the Earth's subsurface. For each subvolume a plurality of possible directions of motion of subsurface formations is select... | 07/12/2011 |
| 7952960 | Seismic imaging with natural Green's functions derived from VSP data The methods described herein are conceptually similar to classical migration/imaging for surface seismic data. However, instead of using computed (estimated) Green's functions in the imaging process, the instant invention utilizes measured (near-exact) Green's funct... | 05/31/2011 |
| 7940601 | Method for computing an exact impulse response of a plane acoustic reflector at zero offset due to a point acoustic source Originating from a novel and an exact algebraic formula for the impulse response of a plane acoustic reflector at zero offset due to a point acoustic source the present invention provides a method for computing an exact impulse response of a plane acoustic reflector... | 05/10/2011 |
| 7936640 | Radon transformation for removal of noise from seismic data Methods of processing seismic data to remove unwanted noise from meaningful reflection signals are provided for. Assembled seismic data are transformed from the offset-time domain to the time-slowness domain using a Radon transformation. Preferably, the Radon transf... | 05/03/2011 |
| 7916576 | Optimizing a seismic survey for source separation A technique includes determining at least one parameter that characterizes a seismic survey in which multiple interfering seismic sources are fired and seismic sensors sense energy that is produced by the seismic sources. The determination of the parameter(s) includ... | 03/29/2011 |
| 7894298 | Multi-component seismic data processing There is described a method of moveout or velocity analysis of seismic signals using the steps of obtaining such signals 5 from a plurality of receivers, identifying receiver functions within the acoustic signals, analyzing said receiver functions for velocit... | 02/22/2011 |
| 7889597 | Method of processing seismic data acquired by means of multi-component sensors The invention relates to a method of processing seismic data acquired by means of a sensor having at least three geophone components, characterized in that estimators are determined which are combinations of these components making it possible to isolate the various... | 02/15/2011 |
| 7876642 | 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 su... | 01/25/2011 |
| 7872943 | Method of accounting for wavelet stretch in seismic data A computer-implemented method of accounting for angle-dependent wavelet stretch in seismic data based on a novel relationship between wavelet stretch and the cosine of a reflection angle of an acoustic ray. Conventional seismic data having at least one wavelet, such... | 01/18/2011 |
| 7869304 | Method and apparatus for pre-inversion noise attenuation of seismic data A method and apparatus for pre-inversion noise attenuation of seismic data. The method can generally comprise: (a) acquiring seismic data including receiver data corresponding to vibratory signals simultaneously generated by the multiple sources and detected by at l... | 01/11/2011 |
| 7864630 | Method and apparatus for minimizing interference between seismic systems A method and apparatus for minimizing interference between seismic systems. The method may generally include: (a) actuating a plurality of first sources associated with a first seismic system to generate a first plurality of phase-encoded vibratory signals; (b) actu... | 01/04/2011 |
| 7859942 | Measuring and modifying directionality of seismic interferometry data Methods and apparatuses are disclosed for replacing the individual receivers used with a seismic interferometry process with an array of seismic receivers and then manipulating the array data in order to measure and modify the typical non-uniform directionality func... | 12/28/2010 |
| 7859943 | Processing a seismic monitor survey A technique includes accessing seismic data that is associated with seismic measurements taken from a reservoir and a surrounding rock mass at a given time. Based on a velocity model developed from a predicted change in the reservoir and surrounding rock mass occurr... | 12/28/2010 |
| 7843765 | Attenuating a surface seismic wave To attenuate a surface seismic wave, seismic sensors having a predetermined orientation with respect to a surface are provided, where the seismic sensors receive seismic waves including a seismic wave reflected from a subterranean structure and the surface seismic w... | 11/30/2010 |
| 7826307 | Identifying an internal multiple generator in a subterranean structure A technique is provided for identifying an internal multiple generator in a subterranean structure. The technique includes injecting wavefields at different levels in the subterranean structure, where the different levels are proximate a predicted location of the in... | 11/02/2010 |
| 7778110 | Processing seismic data representative of the acceleration wavefield A method of processing seismic data comprises processing data representative of the acceleration wavefield so as to obtain information about the earth's subsurface direct from the seismic data representative of the acceleration wavefield. In conventional techniques ... | 08/17/2010 |
| 7773455 | Time-lapse seismic acquisition Methods for generating a time lapse difference image. In one implementation, the method includes estimating a trace in a first seismic survey data set at each trace coordinate of a second seismic survey data set, estimating a trace in the second seismic survey data ... | 08/10/2010 |
| 7768871 | Method of seismic processing of the type comprising depth migration before addition A seismic processing method of the migration type, comprising the steps of: linearly combining downgoing waves generated at a plurality of shotpoints, and also upgoing waves recorded by a plurality of seismic sensors; notion... | 08/03/2010 |
| 7764573 | Method of processing seismic data and method of producing a mineral hydrocarbon fluid and a computer program product A method of processing seismic data, wherein a digital seismic trace is provided comprising at least one seismic loop. A selected discrete wavelet transform of the digital seismic trace is obtained as a function of scale sj and shifted sample time tk... | 07/27/2010 |
| 7751277 | Method for interpolating seismic data by anti-alias, anti-leakage Fourier transform An estimated frequency-wavenumber spectrum is generated by applying a first Anti-leakage Fourier transform method to unaliased frequency components in temporal-transformed seismic data and applying a second Anti-leakage Fourier transform method to aliased frequency ... | 07/06/2010 |
| 7706211 | Method of determining a seismic velocity profile A seismic velocity profile in a region of interest in a subsurface formation is determined using at least the following steps. (a) Activating a seismic source at a location n, thereby exciting a wave in the subsurface formation. (b) Recordi... | 04/27/2010 |
| 7679993 | Method of characterizing a fractured reservoir using seismic reflection amplitudes A method of characterizing a fractured reservoir in a field includes measuring seismic reflection coefficient of the fractured reservoir as a function of angle of incidence and azimuth, predicting seismic reflection coefficient of the fractured reservoir as a functi... | 03/16/2010 |
| 7675815 | Time reverse reservoir localization A method and system for processing synchronous array seismic data includes acquiring synchronous passive seismic data from a plurality of sensors to obtain synchronized array measurements. A reverse-time data process is applied to the synchronized array measurements... | 03/09/2010 |
| 7663970 | Method for passive seismic emission tomography A method for seismic event mapping includes transforming seismic signals recorded at selected positions into a domain of possible spatial positions of a source of seismic events. An origin in spatial position and time of at least one seismic event is determined from... | 02/16/2010 |
| 7649805 | Dispersion extraction for acoustic data using time frequency analysis This invention pertains to the extraction of the slowness dispersion characteristics of acoustic waves received by an array of two or more sensors by the application of a continuous wavelet transform on the received array waveforms (data). This produces a time-frequ... | 01/19/2010 |
| 7639564 | 3-D TAU-P interpolation Methods and apparatus for removing noise from signal traces collected during a seismic gather, particularly removing the aliased energy in the time-slowness (tau-P) domain so that aliasing noise does not lead to high noise levels in the inverse transformed data are ... | 12/29/2009 |
| 7616524 | Wavelet based intercept attribute for seismic exploration A wavelet-based method for improving the quality of seismic data utilizing the intercept determined by applying least squares regression to the wavelet transform of a seismic trace. The intercept is calculated for every time point of the wavelet transform for each s... | 11/10/2009 |
| 7577061 | Process and program for characterising evolution of an oil reservoir over time Evolution of an hydrocarbon reservoir in the process of producing is carried out by co-analyzing the changes in the propagation times and seismic amplitudes of a seismic wavelet along propagation paths in the ground. A base survey of the reservoir is provided, with ... | 08/18/2009 |
| 7554883 | Fault filter for seismic discontinuity data Various methods are disclosed for identifying faults in a seismic data volume. In some method embodiments, the fault identification method comprises determining a planarity value for each of multiple positions of an analysis window in the data volume. The planarity ... | 06/30/2009 |
| 7548487 | Diagonal gather trace interpolation Diagonal gather trace interpolation systems and methods are disclosed. In some embodiments, the method includes obtaining seismic traces from a marine seismic survey performed using typically two seismic sources fired in a flip-flop pattern. The seismic traces are p... | 06/16/2009 |
| 7460437 | Seismic data processing method and system for migration of seismic signals incorporating azimuthal variations in the velocity A method and system for seismic data processing utilizes azimuthal variations in the velocity of seismic signals. The system and method utilizes a plurality of seismic energy sources that are located at known positions at the surface of the earth. The seismic energy... | 12/02/2008 |
