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8223586 Method and system to determine the geo-stresses regime factor Q from borehole sonic measurement modeling  
Methods and systems for analyzing subterranean formations in-situ stress are disclosed. A method for extracting geological horizon on-demand from a 3D seismic data set, comprises receiving sonic...
8218393 Technique and system to increase the length of a seismic shot record  
A system includes an interface and a processor. The interface receives seismic datasets, which are associated with multiple firings of a set of at least one seismic source. Each dataset is...
8213260 Fast residual migration of seismic data through parsimonious image decomposition  
A technique for performing a fast residual migration of seismic data through parsimonious image decomposition is presented. In one aspect, the technique includes a software-implemented method for...
8213261 Method for geophysical and geological interpretation of seismic volumes in the domains of depth, time, and age  
Method for transforming geologic data relating to a subsurface region between a geophysical depth domain and a geologic age domain. A set of topologically consistent surfaces (252a) is obtained...
8208341 Processing of combined surface and borehole seismic data  
Methods and related systems are described for processing surface seismic data. Surface seismic data representing seismic signals detected at a plurality of surface locations is wavefield...
8199610 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...
8199611 Deriving tilt-corrected seismic data in a multi-axis seismic sensor module  
A seismic sensor module includes sensing elements arranged in a plurality of axes to detect seismic signals in a plurality of respective directions, and a processor to receive data from the...
8189426 Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture  
Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture are described. According to one embodiment, an earth analysis method includes...
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...
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...
8165814 Neutrally buoyant sensor apparatus and method for mapping a water pathway  
An apparatus and method for mapping a water pathway. A group of sensors can be employed for detecting one or more features associated with the water pathway in a direction of flow through the...
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...
8150663 Partitioning algorithm for building a stratigraphic grid  
Embodiments of the invention provide a system and method for partitioning data for modelling a geological structure including laterally partitioning the data into multiple columns, where each...
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,...
8121791 Spectral shaping inversion and migration of seismic data  
A geophysical model of a subsurface region is generated based on seismic data, e.g., seismic reflection data. Migration and seismic inversion are applied to the seismic data to generate estimates...
8089825 Method of summing dual-sensor towed streamer signals using cross-ghosting analysis  
A merged particle velocity signal is generated by combining a recorded vertical particle velocity signal, scaled in an upper frequency range using a time-dependent arrival angle as determined by...
8086426 Processing seismic data representing a physical system  
A method of processing seismic data representing a physical system, the method comprising a difference between first and second seismic data representing the system in first and second states,...
8072841 Adaptive wavefront reconstruction  
A method for generating a synthetic seismogram. In one implementation, a ray tracing may be performed on a subsurface. The ray tracing may generate a plurality of rays. A first seismic wavefront...
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...
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...
8055449 Determining fault transmissivity in a subterranean reservoir  
To determine fault transmissivity in a subterranean reservoir, fault structures in the subterranean reservoir are identified, and elastic impedance data is computed from well log data and seismic...
8055448 Imaging of formation structure ahead of the drill-bit  
A downhole acoustic logging tool is used for generating a guided borehole wave that propagates into the formation as a body wave, reflects from an interface and is converted back into a guided...
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...
8041510 Continuous reservoir monitoring for fluid pathways using microseismic data  
A system and method monitor a hydrocarbon reservoir for drainage in volumetric three dimensions. Monitoring between wells is imperative for optimum reservoir management and is achieved by mapping...
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...
8032304 System and method for deriving seismic wave fields using both ray-based and finite-element principles  
A system and method approximate a set of wave equations describing the propagation of seismic waves of one or more frequencies through a seismic volume of interest. In one embodiment, a ray-based...
8027223 Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture  
Earth analysis methods, subsurface feature detection methods, earth analysis devices, and articles of manufacture are described. According to one embodiment, an earth analysis method includes...
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...
8010291 Processing measurement data that involves computing a derivative of the measurement data that represents a subterranean structure  
To process measurement data representing a subterranean structure, a derivative of the measurement data collected by at least one survey receiver is computed, with respect to frequency. A response...
7987054 Efficient multiple prediction in two and three dimensions  
A method is disclosed that uses (a) source-receiver reciprocity and (b) a method such as ISR DMO (U.S. Patent Application Publication No. 2006/0098529) that allows reconstruction of densely...
7986587 Method for imaging the earth's subsurface using passive seismic sensing  
A method of imaging the Earth's subsurface using passive seismic emissions includes detecting seismic signals originating from within the Earth's subsurface over a selected time period using an...
7986586 Method for deghosting marine seismic streamer data with irregular receiver positions  
Seismic data are obtained for each seismic source activation in a marine streamer and for each frequency, after being transformed to a spectral domain. An iterative conjugate gradient scheme,...
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...
7974785 Method for quantitative evaluation of fluid pressures and detection of overpressures in an underground medium  
Method for evaluating fluid pressures in an underground zone by means of seismic and well data. The zone studied is divided into several time analysis intervals. For each of these intervals, a...
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...
7941273 System and method for using time-distance characteristics in acquisition, processing, and imaging of T-CSEM data  
There is provided herein a system and method of acquiring, processing, and imaging transient Controlled Source ElectroMagnetic (t-CSEM) data in ways that are similar to those used for seismic...
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...
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...
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...
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...
7894299 Converted mode seismic survey design  
Method for designing a converted mode (PS or SP) seismic survey to accomplish specified vertical and lateral resolution objectives at target depth. An equation (181) is provided for determining...
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...
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...
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...
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...
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...
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...
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...
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...
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,...

Matches 101 - 150 out of 430 < 1 2 3 4 5 6 7 8 9 >