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| Number | Title | Issue Date |
| 7085195 | Method for detecting earth formation fractures by seismic imaging of diffractors A method is disclosed for seismic imaging of subsurface diffractors. The method includes performing migration velocity analysis on a seismic time record section and depth migrating the time section for offsets exceeding one-half a distance between a seismic energy s... | 08/01/2006 |
| 7085196 | Method and apparatus for gathering seismic data In the present invention, a seismic receiver contains an onboard digitizer that samples and converts a signal from detected seismic energy into the digital domain. The receiver contains an analog to digital converter, a transmission circuitry, and a link to the seis... | 08/01/2006 |
| 7082368 | Seismic event correlation and V-Vestimation 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 transmis... | 07/25/2006 |
| 7082367 | 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 includes: receiving traces from a seismic survey that covers a volume; determining a pai... | 07/25/2006 |
| 7079952 | System and method for real time reservoir management A method of real time field wide reservoir management comprising the steps of processing collected field wide reservoir data in accordance with one or more predetermined algorithms to obtain a resultant desired field wide production/injection forecast, generating a ... | 07/18/2006 |
| 7079953 | Method for creating facies probability cubes based upon geologic interpretation A method for creating a facies probability cube is disclosed. A S-grid containing facies is first created. The grid includes layers of cells and columns of cells. Vertical facies proportion data for the layers of cells is derived from sources such as well data, conc... | 07/18/2006 |
| 7079449 | Methods and systems for low frequency seismic and infrasound detection of geo-pressure transition zones Methods for determining the existence and characteristics of a gradational pressurized zone within a subterranean formation are disclosed. One embodiment involves employing an attenuation relationship between a seismic response signal and increasing wavelet waveleng... | 07/18/2006 |
| 7072767 | Simultaneous inversion for source wavelet and AVO parameters from prestack seismic data The present invention provides for a method and apparatus for seismic data processing. Prestack seismic data is obtained that contains a plurality of reflectors. Non-parallel moveout of the plurality of reflectors is utilized to determine a source wavelet using an L... | 07/04/2006 |
| 7072768 | Method for laterally extrapolating soil property data using soil samples and seismic amplitude data within a seismic coverage area A method for laterally extrapolating shallow soil properties using soil samples and seismic amplitude data within a seismic coverage area entails obtaining seismic amplitude data for the seismic coverage area and obtaining average soil property and soil impedance da... | 07/04/2006 |
| 7066019 | Cavity stability prediction method for wellbores A method of predicting the failure of a rock formation surrounding a subterranean cavity, including a measuring set of parameters relating to pressure conditions and stresses in the rock formation surrounding the cavity; using the set of parameters to determine a ro... | 06/27/2006 |
| 7066687 | Marine seismic surveying A method of performing a seismic survey of a hydrocarbon reservoir in the earth formations beneath a body of water includes deploying a seismic cable from a drum carried by a remotely operated vehicle on the seabed. The cable is deployed into a lined trench, which i... | 06/27/2006 |
| 7069200 | Method intended to obtain reflection travel times from an interpretation of migrated cylindrical wave seismic data A method intended to obtain reflection travel times from an interpretation of seismic data in migrated cylindrical waves, for a given value of the parameter defining the slope of these waves, or the superposition of such data associated with various substantially pa... | 06/27/2006 |
| 7069148 | Gas reservoir evaluation and assessment tool method and apparatus and program storage device A Gas Reservoir Evaluation and Assessment Tool utilizes an Analytical Engine to produce predictions of pressure values and other production data at any point in space and at any point in time in a reservoir. A computer system, such as a workstation, stores a Gas Res... | 06/27/2006 |
| 7069149 | Process for interpreting faults from a fault-enhanced 3-dimensional seismic attribute volume A computer implemented method for interpreting faults from a fault-enhanced 3-D seismic attribute cube. The method includes the steps of extracting faults from a 3-D seismic attribute cube, and of calculating a minimum path value for each voxel of the 3-D seismic at... | 06/27/2006 |
| 7069199 | Grid convergence solution computation system A grid convergence solution computation system computes a computed value (Ahigh) Of high-order accuracy, using a single grid, computes a computed value (Alow) of low-order accuracy, using the same single grid, and computes a grid convergence so... | 06/27/2006 |
| 7069150 | Method for optimizing migration fields using time slice analysis A method for imaging multi-directional fractures in a homogeneous basement utilizing time slices or depth slices to select velocity fields that yield the optimal lithological image of said fracture patterns, especially in 3-D seismic cubes. More specifically, the me... | 06/27/2006 |
| 7065004 | Horizon-based residual depth migration velocity analysis A method is disclosed for processing seismic data. The method includes prestack depth migrating the seismic data to generate common image gathers using an initial velocity-depth model. Horizons in the migrated seismic data are selected. Residual migration velocity a... | 06/20/2006 |
| 7058514 | 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 filtere... | 06/06/2006 |
| 7058513 | Method of seismic exploration by discriminating horizontal and vertical shear waves The invention is a method of geophysical exploration using seismic methods. The receivers and the source are rotated to one another, such that the orthogonal excitations of the seismic source are readily differentiated. The differentiation of the differently excited... | 06/06/2006 |
| 7054753 | Method of locating oil and gas exploration prospects by data visualization and organization The present invention relates to a method of locating oil and gas exploration prospects. A digital model of each of the many geologic strata that compose a basin is created for all or a portion of a basin by digitizing well log data 100, collecting all digiti... | 05/30/2006 |
| 7047898 | System for controlling streamers System for controlling cables and streamers in a seismic tow arrangement comprising at least one deflector (13) connected to one side of a tow vessel (10) via at least one wire (12), leading or the like, wherein the deflector is located in a pos... | 05/23/2006 |
| 7050356 | Method of seismic surveying A method of seismic surveying comprising the steps of actuating the or each vibrator in a first vibrator group at time T0, and subsequently actuating the or each vibrator in a second vibrator group at time T1 that satisfies T0 | 05/23/2006 |
| 7050355 | Determining the orientation of a seismic receiver, a seismic receiver, and a method or seismic surveying The invention provides a method of determining the orientation of a seismic receiver (4, 6) from seismic data acquired at the receiver (4, 6). The determined orientation can be taken into account in subsequent analysis of the seismic data. This avoids ... | 05/23/2006 |
| 7046581 | Well-to-well tomography A method of obtaining a spatial model of a property of part of a subsurface formation located between underground seismic receivers in which at least two sets of pairs of seismic receivers are utilized and one pair of receivers is used to record a signal from a seim... | 05/16/2006 |
| 7043117 | Electro-optical modulation and other optical applications using poled optical whispering gallery mode resonators This application describes examples and implementations of optical devices and techniques based on use of whispering gallery mode (WGM) optical resonators that have nonlinear optical materials in multiple sectors where nonlinear coefficients of two adjacent sectors ... | 05/09/2006 |
| 7043410 | Method of modeling of faulting and fracturing in the earth A computer implemented method for modeling of faulting and fracturing uses “small scale rules” to produce large-scale results. One part of the method is a user interface for inputting deformations, preexisting faults and fractures, and material rock properties. ... | 05/09/2006 |
| 7040169 | Use of cuttings for real time attenuation prediction A method is disclosed for predicting attenuation in real time while drilling using a portable continuous wave technology (CWT) tool to obtain amplitude spectra as a function of frequency for the cuttings at the rig site. Attenuation is predicted, and plotted as a fu... | 05/09/2006 |
| 7043366 | Method for enhancing depth and spatial resolution of one and two dimensional residual surfaces derived from scalar potential data An improved method is disclosed for collecting or assembling scalar potential data measurements that are to be subsequently prepared as a surface representation for analysis via frequency domain transform filters. Measurements are made over a geographic reference re... | 05/09/2006 |
| 7042802 | Determination of stress characteristics of earth formations A method for determining the maximum and minimum horizontal stresses of formations surrounding a borehole includes the following steps: suspending a logging device in the borehole; transmitting sonic energy from the logging device to establish flexural waves in the ... | 05/09/2006 |
| 7039525 | Method for seismic migration using explicit depth extrapolation operators with dynamically variable operator length Explicit depth extrapolation operators are constructed with variable operator lengths depending on maximum dip angle, accuracy condition, and wavenumber. Operator tables are then constructed using the explicit depth extrapolation operators. In a further embodiment, ... | 05/02/2006 |
| 7039526 | Method for downward extrapolation of pre-stack seismic data A set of pre-stack seismic data is downward extrapolated, by first determining a migration interval in the seismic data set. A maximum error criterion is selected for the migration interval. A maximum relative error in phase calculated as a function of frequency, pr... | 05/02/2006 |
| 7036123 | System using fair-share scheduling technique to schedule processes within each processor set based on the number of shares assigned to each process group Described is a scheduling system that provides allocation of system resources of one or more processor sets among groups of processes. Each of the process groups is assigned a fixed number of shares, which is the number that is used to allocate system resources amon... | 04/25/2006 |
| 7035737 | 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. ... | 04/25/2006 |
| 7031730 | Method and system for minimizing storage and processing of ionospheric grid point correction information in a wireless communications device A method and system are provided for minimizing storage and processing of ionospheric grid point corrections transmitted from WAAS satellites in a global positioning system. Based upon a current location, the system creates a boundary around the current location and... | 04/18/2006 |
| 7031842 | Systems and methods for collaboratively viewing and editing seismic data In one embodiment, a computer-implemented seismic viewing/editing collaboration method includes performing real-time collaborative cursor tracking, copaging, picking, and image manipulation in a distributed-display-processing, peer-to-peer architecture. A parameteri... | 04/18/2006 |
| 7031891 | Method of modeling of faulting and fracturing in the earth A Graphical User Interface for displaying and manipulating a model of interconnected nodes that simulates fracturing and faulting in a subsurface volume of the earth. The model incorporates a dynamic range relaxation algorithm. ... | 04/18/2006 |
| 7026951 | Data telemetry system for multi-conductor wirelines An improved data telemetry system for multi-conductor wirelines to achieve satisfactory transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data transmittal means and to a firs... | 04/11/2006 |
| 7027354 | Method of obtaining pore pressure and fluid saturation changes in subterranean reservoirs by forward modeling Representative embodiments provide for a computer including a program code configured to cause a processor to invert and thereafter calibrate first and second data sets, subtract the inverted second data set from the inverted first data set to derive a time-lapse da... | 04/11/2006 |
| 7025534 | Marine seismic surveying A method of performing a seismic survey of a hydrocarbon reservoir in the earth formations beneath a body of water includes deploying a seismic cable from a drum carried by a remotely operated vehicle on the seabed. The cable is deployed into a lined trench, which i... | 04/11/2006 |
| 7027929 | Seismic data interpolation system Seismic traces of 3D surveys are interpolated using polynomials in 4D space from a less densely sampled real data set of source points S(x,y) and receiver points R(x,y). Input seismic traces should be pre-processed by normal move out (NMO) and static corrections. In... | 04/11/2006 |
