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9043155 Matching pursuit-based apparatus and technique to construct a seismic signal using a predicted energy distribution  
A technique includes processing seismic data indicative of samples of at least one measured seismic signal in a processor-based machine to, in an iterative process, determine basis functions,...
9025414 Reciprocal method two-way wave equation targeted data selection for seismic acquisition of complex geologic structures  
The invention relates to seismic surveying where complex geologies are likely to create data that is confusing or ambiguous for a conventional matrix of acquisition source points and receiver...
9013956 Method and system for seismic imaging and earth modeling using beam tomography  
A beam tomography computer implemented method and system for generating improved seismic images and earth models without dependence on reflector structure is disclosed. Recorded seismic data is...
8982666 Methods for seismic fracture parameter estimation and gas filled fracture identification from vertical well log data  
Methods for fracture characterization of unconventional formations are provided. Synthetic seismic fracture responses can be generated based on the derived fracture parameters. The synthetic...
8948463 Method for analyzing seismic data  
A method for analyzing seismic data by generating a post-migration common image gather in a dip angle domain from measured seismic data; detecting concave features related to reflection events in...
8923094 Hydrocarbon detection with passive seismic data  
Method for using seismic data from earthquakes to address the low frequency lacuna problem in traditional hydrocarbon exploration methods. Seismometers with frequency response down to about 1 Hz...
8915852 System and method for ultrasound scatterer characterization  
A method for characterizing ultrasound scatterers in a medium comprises receiving ultrasound data representing a region of interest comprising a plurality of scatterers in a medium, the plurality...
8908473 Method of subsurface imaging using microseismic data  
A method of subsurface imaging is disclosed, the method involving using input data relating to the geometry of a fracture in a subsurface medium, mechanical properties of the medium and in-situ...
8908474 Inversion of 4D seismic data  
The invention is a method for inferring the saturation and pressure change of a reservoir by combining the information from 4D (time-lapse) seismic and time lag data volumes (7) derived from the...
8908471 Method for building velocity models for imaging in multi-azimuth marine seismic surveys  
A programmable computer is used to perform the following. 3D seismic data sets, corresponding to each azimuth in seismic data obtained from a multi-azimuth marine seismic survey, are migrated in...
8902710 Method for determining discrete fracture networks from passive seismic signals and its application to subsurface reservoir simulation  
A method for mapping a fracture network that includes determining a source of at least one seismic event from features in recorded seismic signals exceeding a selected amplitude (“visible seismic...
8902709 Methods for concurrent generation of velocity models and depth images from seismic data  
In various embodiments, the present disclosure describes methods for processing seismic data to concurrently produce a velocity model and a depth image. Various embodiments of the methods include:...
8902711 System and method for analyzing and transforming geophysical and petrophysical data  
A computer system and a computer-implemented method for analyzing input data from a geological volume of interest in a subterranean formation. The method includes processing the input data using a...
8892388 Box counting enhanced modeling  
A method can include providing spatial data for a base case of a subsurface geologic formation; providing spatial data for a simulation case of the subsurface geologic formation; performing box...
8885440 Constructing velocity models near salt bodies  
A method and apparatus for constructing a velocity model of a subsurface of the earth, is disclosed herein. Seismic data may be received. A first velocity model of the subsurface may be...
8867308 System, method and computer program product for stacking seismic noise data to analyze seismic events  
Disclosed is a method for determining seismic event data from indications of seismic noise, the method including receiving seismic trace data from a plurality of locations, and providing a virtual...
8861308 Simultaneous joint inversion of surface wave and refraction data  
A technique includes a method and apparatus for simultaneous joint inversion of surface wave and refraction data to identify near surface geophysical and geological properties.
8861309 Exploitation of self-consistency and differences between volume images and interpreted spatial/volumetric context  
Self-consistency and/or differences between volume images and interpreted spatial/volumetric context may be exploited for improving seismic imaging and estimation of attributes of geobodies, in...
8861306 Interpolating seismic data  
A technique includes modeling interpolated seismic measurements as a random process characterized by seismic measurements acquired at a set of sensor locations and an interpolation error. The...
8830789 Apparatus and method for imaging a subsurface using accumulated energy of wavefield  
Provided is an apparatus of imaging a subsurface of a target area. The apparatus includes: an observed wavefield acquiring unit configured to acquire an observed wavefield for a target area based...
8825409 Tracing seismic sections to convert to digital format  
Method, system, and computer program product for tracing seismic sections to convert to digital format are provided. The method includes: receiving a scan of a seismic section having multiple...
8818730 Unique composite relatively adjusted pulse  
The invention relates to acquiring seismic data in either land or marine environments, but typically marine environments where a pulse-type source is fired in a distinctive composite pulse like a...
8792301 System and method for displaying seismic horizons with attributes  
A system and method may, based on a 3D seismic data set seed point, execute a seed picking algorithm, using the first point for picking a set of second points from the data set, setting each of...
8792302 Estimating anisotropic parameters  
A method for processing seismic data. The method includes performing a plurality of stochastic simulations for one or more rock model parameters to generate one or more anisotropic parameters for...
8792303 Methods and systems for performing azimuthal simultaneous elastic inversion  
An improved method for analyzing seismic data to obtain elastic attributes is disclosed. In one embodiment, a reflectivity series is determined for at least one seismic trace of seismic data...
8781749 Attenuating noise in seismic data  
Noise may be filtered or attenuated from seismic data by building a four-dimensional volume using the acquired seismic data and then applying a random noise attenuation filter to the...
8780671 Using microseismic data to characterize hydraulic fractures  
Methods and apparatus that use microseismic event data, stress data, seismic data, and rock properties to predict the hydrocarbon production success of a well location are disclosed. An example...
8775091 Marine seismic surveying employing interpolated multi-component streamer pressure data  
It is described a method of interpolating and extrapolating seismic recordings, including the steps of deriving particle velocity related data from seismic recordings obtained by at least one...
8773951 System and method for seismic imaging with reduced computational cost  
A computer-implemented method, system, and article of manufacture for generating images of a subsurface region are disclosed. The method includes obtaining seismic data and an earth model related...
8767508 Using seismic P and S arrivals to determine shallow velocity structure  
Method for estimating a model of seismic velocity in a subsurface region from seismic data (31) recorded on 3-component instruments. The method measures the apparent incidence angle (32) of a...
8760968 Determining a quantity of a given material in a subterranean structure  
A profile is produced based on measured survey data, where the profile contains indications corresponding to refraction events at different depths in a subterranean structure. Based on the profile...
8750074 Anisotropic parameter determination  
A walkaway VSP survey is carried out using a receiver array. First arrivals to a plurality of receivers are picked and used to estimate a normal-moveout (NMO) velocity. Using the NMO velocity and...
8737166 Annihilator based wave inversion  
A method for verifying the accuracy of a wave velocity model. The method may include generating an extended image using the wave velocity model, operating on the extended image using an...
8724429 System and method for performing time-lapse monitor surverying using sparse monitor data  
Techniques are disclosed for performing time-lapse monitor surveys with sparsely sampled monitor data sets. An accurate 3D representation (e.g., image) of a target area (e.g., a hydrocarbon...
8705317 Method for imaging of targeted reflectors  
Techniques are disclosed for performing time-lapse seismic monitor surveys with sparsely sampled monitor data sets. A more accurate 3D representation (e.g., image) of a target area (e.g., a...
8699298 3D multiple prediction and removal using diplets  
Methods, software, and computer systems for 3D multiple prediction and removal are disclosed. The method includes determining a set of input diplets. The method includes, for one or more data...
8693283 Estimation of time shift based on multi-vintage seismic data  
The invention is a method of calculating seismic time shifts Δ{right arrow over (t)}(t), comprising: conducting a number (n) of three or more seismic surveys with large time differences such as...
8688757 Method and system of subsurface horizon assignment  
Subsurface horizon assignment. At least some of the illustrative embodiments are methods including: obtaining, by a computer system, a seismic data volume; identifying, by the computer system, a...
8670288 Velocity model for well time-depth conversion  
Systems and methods create a velocity model for well time-depth conversion. In one implementation, a system optimizes a time-depth relationship applied to data points from a single well to...
8665667 Vertical seismic profiling velocity estimation method  
A computer-implemented method includes providing a first velocity model obtained from a vertical seismic profile survey representative of an upper region of a subterranean formation. Wavefields...
8659974 System and method of 3D salt flank VSP imaging with transmitted waves  
According to a preferred aspect of the instant invention, there is provided herein a system and method for imaging complex subsurface geologic structures such as salt dome flanks using VSP data....
8620082 Sonar image texture segmentation  
Systems and methods for sonar image feature extraction, which fit a parameterized statistical model to sonar image data to extract features that describe image textures for follow-on pattern...
8599643 Joint structural dip removal  
A method for structural dip removal. The method includes converting a seismic volume to a depth domain, extracting seismic dips from the seismic volume in the depth domain along a borehole...
8599644 Velocity models for a single well and for a set of wells  
Systems and methods create velocity models for a single well or for a set of wells. In one implementation, a system optimizes a time-depth relationship applied to data points from a single well to...
8588028 Slant-stack for time gather to angle gather conversion  
A method to correct errors in a conversion from time gather to angle gather using slant stacks wherein the slant stacking is performed along a direction that is normal to a dip or along three...
8577613 Effective hydrocarbon reservoir exploration decision making  
An improved methodology for managing hydrocarbon exploration of at least one prospect. The methodology involves iterative processing that allows decision makers to iterate on assumptions and...
8571799 Method for cost effective sampling and characterization of heterogeneous unconventional hydrocarbon regions  
A methodology improves sampling and characterization of heterogeneous, unconventional hydrocarbon-bearing regions. The methodology is designed to integrate consistently across measurements and...
8553499 Migration-based illumination determination for AVA risk assessment  
According to a preferred aspect of the instant invention, there is provided herein a system and method for extending zero-offset or stacked wave-equation illumination analysis into the...
8553498 Q tomography method  
Method for reconstructing subsurface Q models (110) from seismic data (10) by performing ray-based (60), centroid frequency shift (50) Q tomography. The seismic source waveform's amplitude...
8547794 Extending the coverage of VSP/CDP imaging by using first-order downgoing multiples  
First-order free-surface multiples recorded in VSP data or reverse VSP data are processed using VSP/CDP method to produce an image of the subsurface. This image produces a larger coverage than...
Matches 1 - 50 out of 382 1 2 3 4 5 6 7 8 >