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Data Processing: Measuring, Calibrating, Or Testing > Measurement System In A Specific Environment > Earth Science > Seismology SeismologySeismology patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/23/06 - 20060265132 - Method for estimation of interval seismic quality factor The present invention includes a method for determining interval values of seismic quality factor, Q, from seismic data. Seismic data is recorded and preprocessed as necessary. Estimates of amplitude spectra are determined from the seismic data. Logarithms are taken of the amplitude spectra and weights derived from the amplitude spectra. ... 11/23/06 - 20060265131 - Method to determine properties of a sedimentary body from thickness and grain size distribution at a point within the body A method to determine the properties of a water-lain sediment body from a measurement of grain size distribution and deposit thickness at one location in the body is disclosed. In one embodiment, the method comprises (a) determining the flow properties at the measured location, (b) extrapolating the flow properties back ... 11/09/06 - 20060253256 - Processing seismic data A method of processing multi-component seismic data acquired at a receiver station comprises determining a calibration filter that calibrate a first component of the seismic data relative to a second component of the seismic data in order to compensate for differences in coupling between the two components. The determination of ... 11/02/06 - 20060247861 - Seismic analysis using electrical submersible pump Seismic data is collected by using an electrical submersible pump assembly in a well that is producing well fluid. By sweeping the rotational speed of the pump assembly through a selected range at selected intervals, seismic waves of varying frequency are emitted. These seismic waves are then picked up with ... 11/02/06 - 20060247860 - Method for processing seismic data corresponding to acquisitions from a medium with azimuthal anisotropy Method of processing seismic data corresponding to acquisitions carried out in a medium exhibiting azimuthal anisotropy, characterized in that for two sets of data corresponding, for one and the same seismic variable and for one and the same ground zone, to at least two different source/azimuth receiver pair sectors, an ... 10/19/06 - 20060235620 - Method for treating seismic cubes corresponding to obtained for common zone at different times Method of processing a collection of seismic cubes corresponding to one and the same acquisition zone and to various moments of acquisition, characterized in that at least one seismic cube which is an estimate of the component common to at least two seismic cubes corresponding to different moments of acquisition ... 09/28/06 - 20060217890 - Processing seismic data A method of processing seismic data comprises transforming seismic data which contain coherent noise to a domain in which at least some of the coherent noise is transformed to incoherent noise. The seismic data are then filtered in the new domain, to remove or attenuate the incoherent noise. If desired, ... 09/21/06 - 20060212226 - Method and system for the transmission of seismic data The transmission method utilizes multiple seismic acquisition units within an array as intermediate short range radio receivers/transmitters to pass collected seismic data in relay fashion back to a control station. Any one seismic unit in the array is capable of transmitting radio signals to several other seismic units positioned within ... 09/21/06 - 20060212225 - Method for estimating porosity and saturation in a subsurface reservoir A method and apparatus for estimating a porosity and a saturation in a subsurface reservoir. The method includes determining a plurality of mathematical relationships relating a plurality of fundamental physical parameters that govern elastic wave propagation in the subsurface reservoir to the porosity and the saturation in the subsurface reservoir, ... 08/24/06 - 20060190181 - Method for combining seismic data sets A method is disclosed for combining seismic data sets. This method has application in merging data sets of different vintages, merging data sets collected using different acquisition technologies, and merging data sets acquired using different types of sensors, for example merging hydrophone and geophone measurements in ocean bottom seismic data. ... 08/24/06 - 20060190180 - Petroleum exploration and prediction apparatus and method A method for predicting the state of a geological formation. The method may include generating a separation key effective to extract a first feature from a signal or signals corresponding to a first state and a second feature, distinct from the first feature, from a signal or signals corresponding to ... 08/24/06 - 20060190179 - Method of estimating the illumination fold in the migrated domain The invention relates to an estimate of the seismic illumination fold (x,p) in the migrated 3D domain at an image point x, for a dip of vector p characterized in that the illumination fold I (z, p; s, r) is estimated for each (source s, receiver r) pair in the ... 07/13/06 - 20060155477 - Method of multiple attenuation According to a preferred aspect of the instant invention, there is provided herein a system and method for removing or attenuating multiples in datasets that is much more efficient than methods used heretofore. The increases in efficiency principally originate in two algorithmic advances. First, the instant inventors have improved the ... 07/13/06 - 20060155476 - Method of dmo calculation for use in seismic exploration According to a preferred aspect of the instant invention, there is provided herein a system and method for improving the computational efficiency of the DMO transformation that has many uses in the seismic processing arts. More particularly, the instant inventor has conceived and invented a faster method of calculating a ... 07/13/06 - 20060155475 - Method to convert seismic traces into petrophysical property logs A method to convert seismic traces to petrophysical properties is disclosed. One embodiment of the method comprises (a) deriving a combined log seismic response from at least one petrophysical log from a well and at least one seismic trace substantially near the well, (b) convolving the combined log seismic response ... 06/08/06 - 20060122780 - Method and apparatus for seismic feature extraction A method and apparatus for seismic image processing is disclosed. A preferred embodiment aids in the identification of subterranean faults, which are significant in hydrocarbon exploration. The method includes steps of: a) reading a three dimensional seismic data volume; b) computing the three-dimensional orientation of the subsurface; c) subdividing the ... 05/18/06 - 20060106542 - Shear wave velocity determination using circumferentially aligned transmitter and receiver elements A method for determining a formation shear wave velocity for a subterranean formation includes propagating a multi-pole acoustic signal in a borehole using an acoustic transmitter and receiving an acoustic waveform from the multi-pole acoustic signal at one or more receivers deployed at the same circumferential position as the transmitter. ... 05/11/06 - 20060100785 - Processing seismic data A method of processing seismic data comprises identifying the value of a first parameter associated with an event in a first set of seismic data. The value of a second parameter associated with a corresponding event in a second set of seismic data is then obtained using at least one ... 04/27/06 - 20060089806 - System and method for interpreting reverse faults and multiple z-valued seismic horizons A system and method for interpreting reverse faults and multiple z-valued seismic horizons. A platform executable on a computer is provided for interpreting seismic data. The platform includes a user input module for accepting user inputs related to interpretation of seismic data and also includes a graphics processing module for ... 03/16/06 - 20060058965 - Method for generating a reservoir model on flexible grid A method having application notably to the development of petroleum for fast generation of a geostatistical reservoir model on flexible grid, representative of a porous heterogeneous medium. A flexible grid best discretizing the medium is first generated. A regular Cartesian grid whose cell size, in a given direction, is greater ... 02/23/06 - 20060041383 - Method, device and software package for locally determining the shape of geological horizons The invention concerns a method for locally determining a profile of geological horizons comprising a step (100) which consists in digital modelling with continuous local seismic traces, calculating an optimal offset and defining a conditional neighbourhood of a reference central continuous local seismic trace; a step (101) which consists in ... 02/16/06 - 20060036367 - Method and system for processing geophysical survey data A method and system for processing geophysical survey data is provided. Gravity gradiometry data is processed by approximating density values of terrain signals to remove contributions of the terrain from the gravity gradiometry data. Initially, a predicted gravity gradient data set for a geographical area is calculated using terrain data ... 01/19/06 - 20060015260 - Method of simulating the sedimentary deposition in a basin respecting the thicknesses of the sedimentary sequences The method allows, by means of an iterative inversion algorithm, to predict the spatial distribution of the lithologic composition of sediments deposited in a sedimentary basin during a geologic time interval, and the temporal evolution of the depositional profile throughout filling of the basin, while respecting exactly the thicknesses of ... 01/19/06 - 20060015259 - Method for determination of diffractor locations at sea bottom for the purpose of attenuating such energy Coherency analysis, such as semblance scan or stacking amplitude, is used to locate diffractors. Once the diffractors are located, noise energy originating from the diffractors is minimized. Locations of each diffractor are determined by comparing the lateral coherency of the received amplitudes that each assumed diffractor position generates. ... 01/05/06 - 20060004522 - Seismic image deformation method for improved interpretation The present method relates to a method of geometric deformation of a seismic image for interpretation, comprising the steps of selecting a geologic layer represented in the seismic image; determining by stratigraphic modelling a mean topographic depositional surface for said layer; deforming the seismic image by displacing the traces by ... 01/05/06 - 20060004521 - Seismic data calibration using crossplotted avo attributes Disclosed herein are systems and methods for calibrating seismic data using seismic attribute pairs such as amplitude versus offset (AVO) attributes. In one embodiment, a method comprises: receiving traces from a seismic survey that covers a volume; determining a pair of seismic attributes for each of a plurality of positions ... 01/05/06 - 20060004520 - Method for attenuating noise in seismic data using complex trace diversity filter A method is disclosed for attenuating noise in seismic data. The method includes calculating a trace envelope for at least part of at least one seismic trace, generating a filtered envelope from the trace envelope, and transforming the filtered envelope to a filtered trace. In one embodiment, a length of ... 12/29/05 - 20050288863 - Method and system for utilizing string-length ratio in seismic analysis An apparatus and method for analyzing known data, storing the known data in a pattern database (“PDB”) as a template is provided. Additional methods are provided for comparing new data against the templates in the PDB. The data is stored in such a way as to facilitate the visual recognition ... 12/08/05 - 20050273266 - Seismic event correlation and vp-vs estimation A method of correlating seismic events associated with different types of seismic transmission modes and includes calculating a shift estimate between a first set of seismic events or attributes associated with the seismic events attributable to one type of transmission mode and a second set of seismic events or attributes ... 12/08/05 - 20050273265 - Method for seismic wavefield extrapolation A seismic wavefield is extrapolated using variable extrapolation step size and then phase-shifted linear interpolation is applied to the extrapolated wavefield. ... 10/06/05 - 20050222775 - Data compression methods and systems The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression ... 10/06/05 - 20050222774 - Method, device and software package for smoothing a subsurface property The invention concerns a method for smoothing a subsurface property in a geological structure represented by seismic measurements comprising a step (100) which consists in digital modelling by continuous local seismic traces, calculating an optimal offset and defining a conditional neighbourhood of a reference central continuous local seismic trace; a ... 09/22/05 - 20050209783 - Control devices for controlling the position of a marine seismic streamer A control device or “bird” for controlling the position of a marine seismic streamer is provided with an elongate, partly flexible body which is designed to be electrically and mechanically connected in series with a streamer. In its preferred form, the bird has two opposed wings which are independently controllable ... 09/08/05 - 20050197781 - Seismic monitoring and control method A seismic communication system suitable to communicate information to an underground device is disclosed. A seismic source (preferably on or near the surface of the earth) generates a timed series of seismic shots. These shots are then detected by one or more seismic receivers underground. Depending on the timing of ... 09/08/05 - 20050197780 - Quantitative risk assessment applied to pore pressure prediction Pre-drill pore pressure and fracture gradient predictions obtained from seismic velocity data are used in well design taking into account uncertainties in the velocity estimation and in the models that use the velocities to determine pore pressure. Using geological constraints, limits are established on hydrocarbon column height. It is also ... 09/08/05 - 20050197779 - Method, media, and signals for processing seismic data to obtain a velocity field A method and apparatus for estimating a seismic velocity field from seismic data including time-amplitude representations associated with source-receiver locations spaced apart by an offset distance and having a midpoint therebetween, the seismic data being arranged into common midpoint (CMP) gathers associated with respective CMP locations. A control plane having ... 08/11/05 - 20050177310 - Data acquisition unit, system and method for geophysical data A data acquisition system for gathering geophysical data, a corresponding method, and a data acquisition unit for use with the system and method are disclosed. The system (10) comprises a plurality of data acquisition units (14) for gathering geophysical data, each data acquisition unit (14) being connectable to at least ... 07/07/05 - 20050149267 - Time-lapse seismic survey of a reservoir region A method of investigating a reservoir region in a subsurface formation by a time-lapse seismic survey, which subsurface formation comprises a further formation region adjacent to the reservoir region, which method comprises the steps of obtaining data from a time-lapse seismic survey including seismic data of the subsurface formation at ... 07/07/05 - 20050149266 - Downhole library of master wavelets for vsp-while-drilling applications A controllable seismic source is used in a seismic-while-drilling system for obtaining VSP data. Coded information is sent downhole about the signal generated by said controllable source. The information about the seismic source is used for reconstructing the source waveform and processing the VSP data. Optionally, a reference signal measured ... 06/30/05 - 20050143923 - Processing seismic data A method of determining an integral of a function over an n-dimensional integration domain from the values of the function at a plurality of discrete data points within the integration domain, comprises partitioning the integration domain into a plurality of k-dimensional simplexes, where k≦n. The function is integrated over each ... 06/30/05 - 20050143922 - Global classification of sonic logs A method of determining the sonic slowness of a formation traversed by a borehole comprising generating tracks from sonic waveform peaks received at a plurality of depths wherein the peaks that are not classified prior to tracking is set forth. A method for generating a slowness versus depth log is ... 06/30/05 - 20050143921 - Method for seismic imaging in geologically complex formations A method for multipath imaging of three-dimensional volumes of seismic data, given the subsurface velocity distribution. Ray tracing is used to generate the volumes of information needed for migration, but using coarse-scaled grids for computational efficiency. Interpolation methods are disclosed that address the specific shot points and receiver locations and ... 06/23/05 - 20050137804 - Method and apparatus for detecting and locating noise sources whether correlated or not in minimizing the functional relative to the vectors nj for j=1 to M so as to determine the directions vector nj of the noise sources. ... 06/09/05 - 20050125157 - Method and system and program storage device for analyzing compressional 2d seismic data to identify zones of open natural fractures within rock formations The Fracture Trend Identification method is practiced by the Fracture Trend Identification software adapted for analyzing compressional 2-D seismic data in order to identify zones in a rock formation containing open, natural fractures. The Fracture Trend Identification method comprises one or two or more of the following steps: loading seismic ... 06/02/05 - 20050119831 - Adding a signal to seismic data The present invention provides a method and apparatus for analyzing seismic data. The method includes determining a portion of the seismic data recorded substantially before the arrival of a seismic signal and adding a test signal to the portion of the seismic data recorded substantially before the arrival of the ... ### FreshPatents.com Support |