3-d Patents (Class 367/72)
  • Patent number: 10061060
    Abstract: A method and apparatus for generating a simulation grid for a reservoir model based on a geological model comprising horizons, constraints and multiple geological grid cells. A pre-image is generated corresponding to the geological grid cells, the pre-image comprising a surface and the modeling constraints being mapped onto the surface. A constrained two-dimensional grid is generated on the pre-image, the two-dimensional grid comprising multiple grid cells. Simulation layer boundaries are selected from the geological model and the constrained two-dimensional grid is projected onto the simulation layer boundaries. Prismatic cells are then generated to form the three-dimensional simulation grid. The method of generating a grid as herein described may be incorporated in existing reservoir simulators.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: August 28, 2018
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Larisa V. Branets, Elena Kartasheva, Igor V. Krasnogorov, Valeriy Kubyak, Xiaohui Wu
  • Patent number: 10042511
    Abstract: A user control is provided for use with a multidimensional dataset that allows a user to graphically set the bounds for one or more of the dimensions of data selected from the dataset. The graphical user control includes a wireframe cube representing the extent of data in the dataset and a selector box within the data cube. A user can indicate a selected perspective and orientation of the data by selecting a portion of an edge of the selector box, and a visual indication of the selected perspective and orientation is provided. The user further can select a desired portion of the data by changing a size and/or a position of the selector box within the data cube. The graphical user control further includes a visual indicator representing the fourth dimension of the dataset and one or more navigation buttons.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: August 7, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Marvin W Roe, Geary J Layne
  • Patent number: 10036820
    Abstract: A method includes retrieving a seismic data set, receiving training data that includes one or more seed points of an identified geobody, determining a geobody trajectory of the identified geobody, based on the one or more seed points of the identified geobody, displaying the geobody trajectory, receiving inputs expanding the geobody trajectory, shrinking the geobody trajectory, confirming the geobody trajectory, or a combination thereof, training a classification algorithm using the geobody trajectory, running the classification algorithm on the seismic data set, receiving an output of one or more sets of voxels from the classification algorithm, skeletonizing the one or more sets of voxels to present the one or more sets of voxels as a set of possible geobody trajectories, and retraining the classification algorithm based on feedback received from a reviewer.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 31, 2018
    Assignees: GENERAL ELECTRIC COMPANY, EXXONMOBIL UPSTREAM RESEARCH COMPANY
    Inventors: Ali Can, Erhan Bas, Dongrui Wu, Jie Yu, Leslie Wahrmund
  • Patent number: 9689998
    Abstract: 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 the points in the set of second points as the first point and repeating the algorithm. An iteration number or other attribute may be assigned to the points, the iteration number corresponding to the number of times the algorithm repeated to process the point. The attribute or a number of attributes may be displayed as a visual characteristic for each point. An iterative process may be applied to a set of seismic data points, starting at a seed data point and finding a set of next iteration seed points from among the set of points neighboring the seed point, continuing only with next iteration seed points, and recording for each of a set of data points the number of points that are found by the process when the point is used as a seed data point.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: June 27, 2017
    Assignee: PARADIGM SCIENCES LTD.
    Inventor: Huw James
  • Patent number: 9557433
    Abstract: Disclosed herein are various embodiments of methods and systems for providing a graphical skeletonization representation of fractures and faults in a subsurface of the earth. According to some embodiments, as fracturing fluid is pumped into a target geologic formation through a well bore, and as the formation fractures or faults in response to the fracturing fluid being pumped under high pressure therein, seismic wavefronts are generated at points of fracture related to movement of a fluid pressure wave induced by fracturing or other fluids moving through the formation, or the extraction of fluids such as gas and/or oil from the formation, which are detected by surface and/or downhole sensors. Data corresponding to signals generated by the surface and/or downhole sensors are recorded and subsequently analyzed to determine in near real-time the locations of the fractures or faults using skeletonization data processing techniques and methods.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: January 31, 2017
    Assignee: Seismic Global Ambient, LLC
    Inventors: Peter Anderson Geiser, Jan Meredith Vermilye
  • Patent number: 9390555
    Abstract: Assessing the impact of existing fractures and faults for reservoir management, in one aspect, may comprise employing a numerical mesh to generate a geomechanical model, the numerical mesh representing a geological reservoir and its surrounding regions, the numerical mesh comprising delimitation associated with regions and layering of geology without constraining the numerical mesh to explicitly represent a fault or fracture, initializing the geomechanical model to define initial stress-strain compatible with measured stress in well locations associated with the geological reservoir, generating a fluid-flow model employing the numerical mesh, solving for a coupled solution of the fluid-flow model and the geomechanical model, and employing the solved fluid-flow model and the geomechanical model to assess the impact.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: July 12, 2016
    Assignees: International Business Machines Corporation, Repsol, S.A.
    Inventors: Mohamed Ahmed Hegazy, Mookanahallipatna Ramasesha Lakshmikantha, Jose Maria Segura Serra, Leopoldo Luis Cabo Penna Franca, Ulisses T. Mello, Eduardo Rocha Rodrigues
  • Patent number: 9341727
    Abstract: Systems, methods, and software can be used to analyze microseismic data from a fracture treatment. In some aspects, fracture planes are identified based on microseismic event data from a fracture treatment of a subterranean zone. Each fracture plane is associated with a subset of the microseismic event data. Confidence level groups are identified from the fracture planes. Each confidence level group includes fracture planes that have an accuracy confidence value within a respective range. A graphical representation of the fracture planes is generated. The graphical representation includes a distinct plot for each confidence level group.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 17, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jianfu Ma, Avi Lin, Harold Grayson Walters
  • Patent number: 9262713
    Abstract: Methods and systems for optimizing wellbore completion and, in particular, methods and systems for optimizing hydraulic fracturing parameters are disclosed. In some embodiments, a method of optimizing wellbore completion includes gathering wellbore data, screening and processing the gathered wellbore data, utilizing the screened and processed wellbore data to define an optimized model, and utilizing the optimized model to evaluate combinations of available wellbore completion parameters. In some instances, the optimized model is defined using artificial neural networks, genetic algorithms, and/or boosted regression trees. Further, in some embodiments the combinations of available wellbore completion parameters include hydraulic fracturing parameters, such as number of fractures, fracturing fluid type, proppant type, fracturing volume, and/or other parameters.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: February 16, 2016
    Assignee: CARBO Ceramics Inc.
    Inventors: Robert Shelley, Nijat Guliyev, Amir Nejad
  • Patent number: 9261615
    Abstract: Method for identifying geologic features from seismic data (11) using seismic anomaly detection by a double-windowed statistical analysis. Subtle features that may be obscured using a single window on the data are made identifiable using two moving windows of user-selected size and shape: a pattern window located within a sampling window larger than the pattern window (12). If Gaussian statistics are assumed, the statistical analysis may be performed by computing mean and covariance matrices for the data within the pattern window in its various positions within the sampling window (13). Then a specific measure of degree of anomaly for each voxel such as a residue value may be computed for each sampling window using its own mean and covariance matrix (14), and finally the resulting residue volume may be analyzed, with or without thresholding, for physical features indicative of hydrocarbon potential (15).
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: February 16, 2016
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Krishnan Kumaran
  • Patent number: 9239398
    Abstract: There is provided a system and method for creating model of a subsurface region based on multiple depth values. The method includes selecting seeds that represent a starting location within a desired horizon surfaces and generating a plurality of candidate horizons from the selected seeds. A number of depth values from the candidate horizons may be combined into a representative depth value and an uncertainty may be computed based on discrepancies among the depth values. A model of the subsurface region may be created using the depth values and the uncertainty.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: January 19, 2016
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Chul-Sung Kim, Mark W. Dobin
  • Patent number: 9229122
    Abstract: A method for increasing similarity between a base seismic survey and a monitor seismic survey of a same surveyed subsurface during a 4-dimensional (4D) project. The method includes receiving first seismic data associated with the base seismic survey; receiving second seismic data associated with the monitor seismic survey, wherein the monitor seismic survey is performed later in time than the base seismic survey; migrating the first and second seismic data to an image-domain; and calculating, with a processor, a set of decimating weights based on the migrated first and second seismic data in the image-domain, to maximize a similarity between the first seismic data and the second seismic data.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: January 5, 2016
    Assignee: CGGVERITAS SERVICES SA
    Inventor: Ross Haacke
  • Patent number: 9223905
    Abstract: A system and method for predicting airflow within a data center using a potential flow technique is provided. In one aspect, a method includes automatically generating an unstructured grid, the unstructured grid comprising a plurality of unstructured grid cells, each unstructured grid cell having a size, dividing a representation of the data center into the plurality of unstructured grid cells, determining airflow velocity values for each of the plurality of unstructured grid cells using airflow velocity potentials, determining a temperature value for each one of the plurality of the unstructured grid cells using the airflow velocity values, determining a concentration value for each of the plurality of the unstructured grid cells using the airflow velocity values, and calculating a comparison result indicating whether the concentration values, the airflow velocity values and the temperature values for the plurality of the unstructured grid cells satisfy convergence criteria.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 29, 2015
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Mikkel Dalgas, James W. VanGilder, Christopher Healey, Martin Johansen
  • Patent number: 9134444
    Abstract: Strength parameters of the contents of subsurface caverns are deduced through seismic information. Known properties of formations surrounding the caverns, and ratios of seismic amplitudes between the caverns and the surrounding formations are leveraged to deduce the strength parameters within the caverns.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: September 15, 2015
    Assignee: Chevron U.S.A., Inc.
    Inventor: Joseph Paul Stefani
  • Patent number: 8792301
    Abstract: 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 the points in the set of second points as the first point and repeating the algorithm. An iteration number or other attribute may be assigned to the points, the iteration number corresponding to the number of times the algorithm repeated to process the point. The attribute or a number of attributes may be displayed as a visual characteristic for each point. An iterative process may be applied to a set of seismic data points, starting at a seed data point and finding a set of next iteration seed points from among the set of points neighboring the seed point, continuing only with next iteration seed points, and recording for each of a set of data points the number of points that are found by the process when the point is used as a seed data point.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: July 29, 2014
    Assignee: Paradigm Sciences Ltd.
    Inventor: Huw James
  • Publication number: 20130170317
    Abstract: A seismic exploration system includes a survey area defined by a perimeter and including a first plurality of sub-areas and a second plurality of sub-areas adjacent the first plurality of sub-areas; two or more seismic energy sources installed within the perimeter of the seismic survey area; a first plurality of groups of seismic energy receivers installed in the first plurality of sub-areas, each of the groups of seismic energy receivers in the first plurality of groups including two or more seismic energy receivers per wavelength of seismic energy generated by the two or more seismic energy sources; and a second plurality of groups of seismic energy receivers installed in the second plurality of sub-areas, each of the groups of seismic energy receivers in the second plurality of groups including less than two seismic energy receivers per wavelength of seismic energy generated by the two or more seismic energy sources.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Applicant: LANDMARK GRAPHICS CORPORATION
    Inventor: Christof Stork
  • Patent number: 8478531
    Abstract: A best fitting trace in seismic data is determined for a desired trace to be reconstructed. A dip-based correction is calculated per trace and per sample for differences in azimuth, common midpoint coordinates, and offset between the best fitting trace and the desired trace. The dip-based correction is applied to the best fitting trace to reconstruct the desired trace for 3D surface-related multiple prediction.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: July 2, 2013
    Assignee: PGS Geophysical AS
    Inventors: Peter A. Aaron, Roald G. van Borselen, Robertus F. Hegge, Simon R. Barnes
  • Patent number: 8427904
    Abstract: Embodiments of various technologies for a method for processing seismic data are disclosed. In one embodiment, a first portion of a record of pre-stack seismic data may be displayed in a three-dimensional XYZ (3-D XYZ) space. A selection may be received of a second portion of the record of the pre-stack seismic data within the first portion. One or more attributes may be determined that define the second portion. One or more regions may be identified within the record of the pre-stack seismic data having the attributes that define the second portion.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: April 23, 2013
    Assignee: WesternGeco L.L.C.
    Inventors: Matthew C. Miller, Richard Tachon, Alan G. Teague, Debra M. Dishberger, Yann Cudennec, Kamran Nadim, Stephen David Hall
  • Patent number: 8355872
    Abstract: A system for and method of automatically evaluating similarity between a target geological region of interest and a plurality of known geological regions of interest includes selecting a plurality of quantitative parameters describing reservoir characteristics of the target geological region of interest and defining a graphical target line based on values of the selected parameters. Comparison lines are graphically constructed for at least some of the plurality of known geological regions of interest, respective comparison lines representing respective values of the quantitative parameters describing corresponding characteristics of respective regions among the known geological regions of interest. A similarity factor between each of the comparison lines and the target line is calculated based on the plotted target and comparison lines. The comparison lines are ranked based on the calculated similarity factors, and similarity factor versus similarity rank are graphically displayed.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: January 15, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventor: Dana E. Rowan
  • Patent number: 8345509
    Abstract: In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: January 1, 2013
    Assignees: Chevron U.S.A., Inc., Los Alamos National Security
    Inventors: Cung Vu, Kurt T. Nihei, Denis P. Schmitt, Christopher Skelt, Paul A. Johnson, Robert Guyer, James A. TenCate, Pierre-Yves Le Bas
  • Patent number: 8233351
    Abstract: A system and method for locating subsurface diffractors. The method operates on two-dimensional (2-D) seismic data that includes one or more 2-D seismic lines. The 2-D seismic data may be preprocessed to enhance diffracted energy. For each hypothetical diffractor location in a set of hypothetical diffractor locations, the method involves analyzing at least a subset of the seismic traces of the one or more 2-D seismic lines, in order to compute a value indicating an extent to which those seismic traces contain diffraction arrivals consistent with the hypothetical diffractor location. The method may further involve generating, storing and displaying an image (or map) based on the computed values. The image may illustrate areas of high, intermediate and low diffraction, and may be used to assess the formation.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: July 31, 2012
    Assignee: Landmark Graphics Corporation
    Inventor: Stewart A. Levin
  • Publication number: 20120120765
    Abstract: A method of interrogating a formation includes generating a conical acoustic signal, at a first frequency—a second conical acoustic signal at a second frequency each in the between approximately 500 Hz and 500 kHz such that the signals intersect in a desired intersection volume outside the borehole. The method further includes receiving, a difference signal returning to the borehole resulting from a non-linear mixing of the signals in a mixing zone within the intersection volume.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 17, 2012
    Applicants: Los Alamos National Security, Chevron U.S.A. Inc.
    Inventors: Cung Khac VU, Christopher Skelt, Kurt Nihei, Paul A. Johnson, Robert Guyer, James A. Ten Cate, Pierre-Yves Le Bas, Carène S. Larmat
  • Patent number: 8174926
    Abstract: A first weighted integral operator is applied to dual-sensor data to extrapolate the dual-sensor data to a first position above an acquisition surface, generating extrapolated data. A second weighted integral operator is applied to the extrapolated data to extrapolate the extrapolated data to a second position, generating wavefield separated data. One of the integral operators is applied to a scaled combination of the dual sensor data.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: May 8, 2012
    Assignee: PGS Geophysical AS
    Inventor: Tilman Klüver
  • Publication number: 20120106295
    Abstract: Embodiments of various technologies for a method for processing seismic data are disclosed. In one embodiment, a first portion of a record of pre-stack seismic data may be displayed in a three-dimensional XYZ (3-D XYZ) space. A selection may be received of a second portion of the record of the pre-stack seismic data within the first portion. One or more attributes may be determined that define the second portion. One or more regions may be identified within the record of the pre-stack seismic data having the attributes that define the second portion.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Inventors: MATTHEW C. MILLER, RICHARD TACHON, ALAN G. TEAGUE, DEBRA M. DISHBERGER, YANN CUDENNEC, KAMRAN NADIM, STEPHEN DAVID HALL
  • Patent number: 8154950
    Abstract: A method for displaying geologic stress includes determining magnitudes and directions of principal stresses at at least one a selected location. An analog symbol is generated for each magnitude and direction of the principal stresses. The analog symbols include a magnitude descriptor and a direction descriptor. The analog symbols are stored or displayed.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: April 10, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Denis Heliot, Yan Gongrui, Jean Desroches
  • Patent number: 8120991
    Abstract: Embodiments of the invention provide a system and method for converting coordinate systems for representing image data such as for example seismic data, including accepting a first set of seismic data, mapping the first set of seismic data to a second set of seismic data, where the dimensionality of the second set of seismic data is less than the dimensionality of the first set of seismic data, and generating image data by processing the second set of seismic data.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: February 21, 2012
    Assignee: Paradigm Geophysical (Luxembourg) S.A.R.L.
    Inventors: Zvi Koren, Igor Ravve
  • Publication number: 20120014217
    Abstract: 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 bearing subsurface reservoir) is constructed (12) using the sparsely sampled monitor data set (11). The sparsely sampled monitor data set may be so limited that it alone is insufficient to generate an accurate 3D representation of the target area, but accuracy is enabled through use of certain external information (14). The external information may be one or more alternative predicted models (25) that are representative of different predictions regarding how the target area may change over a lapse of time. The alternative models may, for example, reflect differences in permeability of at least a portion of the target area. The sparsely sampled monitor data set may then be processed to determine (23) which of the alternative models is representative of the target area.
    Type: Application
    Filed: December 4, 2009
    Publication date: January 19, 2012
    Inventors: Richard T. Houck, Grant A. Gist, Dachang Li
  • Publication number: 20120014218
    Abstract: Techniques are disclosed for performing time-lapse monitor surveys with sparsely sampled monitor data sets (11). An accurate 3D representation (e.g., image) of a target area (e.g., a hydrocarbon bearing subsurface reservoir) is constructed using the sparsely sampled monitor data set (e.g., seismic data set). The sparsely sampled monitor data set may be so limited that it alone is insufficient to generate an accurate 3D representation of the target area, but accuracy is achieved through use of certain external information (14). The external information may include predetermined base survey data from a first time that is used (12) to interpolate data that is not recorded in the sparsely sampled monitor data set to derive a fully sampled monitor data set that can be processed (e.g., using conventional processing techniques) for determining an accurate representation of the target area at a second time.
    Type: Application
    Filed: December 4, 2009
    Publication date: January 19, 2012
    Applicant: ExxonMobil Upstream Research Company
    Inventors: Richard T. Houck, Ramesh Neelamani
  • Patent number: 8094515
    Abstract: Implementations of various technologies for a method for processing seismic data. A first portion of a record of pre-stack seismic data may be displayed in a three-dimensional XYZ (3-D XYZ) space. A selection may be received of a second portion of the record of the pre-stack seismic data within the first portion. One or more attributes may be determined that define the second portion. One or more regions may be identified within the record of the pre-stack seismic data having the attributes that define the second portion.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: January 10, 2012
    Assignee: WesternGeco L.L.C.
    Inventors: Matthew C. Miller, Richard Tachon, Kamran Nadim, Stephen David Hall
  • Patent number: 8086408
    Abstract: A method for positioning a wire having nodes and streamers is provided herein. The wire can be secured to tow lines secured to a floating vessel for detecting near surface geology formations. The method can use in-water sensors deployed proximate to the wire near the tow lines, and a processor with data storage in communication with the in-water sensors. The method can use a data array, a library of data formats, a library of wires, a library of preset limits, and a network. The method can include receiving sensor information, filtering sensor information, verifying filtered signals, constructing and modifying a mathematical model, obtaining a list of coordinates, constructing a real-time display of the wire, identifying a location of at least one streamer, transmitting alarms, creating a trend analysis over time and event-by-event, and creating a log file using the industry standard data formats.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: December 27, 2011
    Assignee: NCS Subsea, Inc.
    Inventors: Edward Majzlik, Alfred L. Hise, Brian Hardy
  • Patent number: 8059486
    Abstract: Sonar imaging data is reduced by assigning partially reflective and/or opaque two dimensional areas for each data point to a series of planes. The reflectivity and/or transmission of light from the areas is calculated and used to construct an image.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 15, 2011
    Assignee: Coda Octopus Group
    Inventor: Martyn Sloss
  • Patent number: 8055449
    Abstract: 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 data. Normalization parameters that have a predetermined orientation with respect to the identified fault structures are computed, and elastic impedance flux values are normalized with respect to the normalization parameters, where the normalized elastic impedance flux values are indicative of transmissivities of fault structures in the subterranean structure.
    Type: Grant
    Filed: August 17, 2008
    Date of Patent: November 8, 2011
    Assignee: WesternGeco L.L.C.
    Inventors: Robert Godfrey, Jean-Michel Gehenn, Thibaut Cheret, Richard Dolman, Michael Nickel, Lars Sonneland
  • Patent number: 8045417
    Abstract: A system and method for locating subsurface diffractors. The method operates on two-dimensional (2-D) seismic data that includes one or more 2-D seismic lines. The 2-D seismic data may be preprocessed to enhance diffracted energy. For each hypothetical diffractor location in a set of hypothetical diffractor locations, the method involves analyzing at least a subset of the seismic traces of the one or more 2-D seismic lines, in order to compute a value indicating an extent to which those seismic traces contain diffraction arrivals consistent with the hypothetical diffractor location. The method may further involve generating, storing and displaying an image (or map) based on the computed values. The image may illustrate areas of high, intermediate and low diffraction, and may be used to assess the formation.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: October 25, 2011
    Assignee: Landmark Graphics Corporation
    Inventor: Stewart A. Levin
  • Publication number: 20110235464
    Abstract: Marine seismic data are acquired, using a seismic vessel. The acquired marine seismic data are transferred in near-real time to a programmable computer. The programmable computer is used to perform the following. An acoustic 3-D full-waveform inversion is applied to the transferred marine seismic data, generating a high-resolution 3-D velocity field in near-real time. The velocity field is used to apply migration to the transferred marine seismic data, generating an image of the earth's subsurface in near-real time.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Inventors: John Brittan, Stephen David Bishop, Sverre Brandsberg-Dahl
  • Publication number: 20110199860
    Abstract: 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 hydrocarbon bearing subsurface reservoir) is constructed using the sparsely sampled monitor data set (11). The sparsely sampled monitor data set may be so limited that it alone is insufficient to generate an accurate 3D representation of the target area, but accuracy is achieved through use of certain external information (14). The external information may include information accurately identifying a shape of the seismic reflector(s) present in the target area. The shape may be predetermined from a fully sampled base survey, and used to enable an accurate 3D representation (12) of the target area to be later generated for a monitor survey using a sparsely sampled monitor data set.
    Type: Application
    Filed: December 4, 2009
    Publication date: August 18, 2011
    Inventors: Richard T. Houck, Graham A. Winbow
  • Patent number: 7925482
    Abstract: A method and system for generating an unstructured automatic mesh and executing computational algorithms using a finite element numerical approach is disclosed. The method is to model a hydrocarbon reservoir, wells, and completions as a single system, accounting for static information and transient behavior of wells, hydraulic fractures and reservoirs in a single model.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: April 12, 2011
    Assignee: Object Reservoir, Inc.
    Inventors: Stephen R. Kennon, Scott A. Canann, Steven B. Ward, Frank Joseph Eaton
  • Patent number: 7925483
    Abstract: A method for displaying a formation model while drilling a wellbore in the formation includes operating a well logging instrument at a measurement point in the formation along a wellbore while the wellbore is being drilled. Measurement data regarding the formation are obtained from the well logging instrument. An actual orientation of a geological structure is determined from the measurement data. A trajectory of the wellbore is displayed in three dimensions as it is being drilled through the formation. While drilling the wellbore, the geological structure is displayed along the trajectory of the wellbore according to the determined actual orientation of the geological structure. The actual orientation reflects an azimuth angle of planes corresponding to the geological structure. The trajectory of the wellbore is changed in response to displaying the determined actual orientation of the geological structure relative to the trajectory.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: April 12, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Peiwen Xia, Jan W. Smits, Lawrence Chou, Qiming Li, Dzevat Omeragic, James F. Bristow, Paul A. Wand, Jean-Michel Denichou
  • Patent number: 7859943
    Abstract: 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 occurring from a prior to the given time, processing the seismic data to generate a survey of the reservoir and surrounding rock mass.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: December 28, 2010
    Assignee: WesternGeco L.L.C.
    Inventor: Jorg V. Herwanger
  • Patent number: 7796469
    Abstract: The invention relates to a method for fracture plane reconstruction in a three-dimensional set (20) of values, comprising the steps of providing a computer with the three-dimensional set, display by the computer of a succession of plane sections (10) of the three-dimensional set, selection by the user of points of the fracture plane over some of these sections during their display; and reconstruction by the computer of the fracture plane from the selected points.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 14, 2010
    Assignee: Total S.A.
    Inventors: Naamen Keskes, Marc Donias, Yannick Barthoumieu, Sébastien Guillon
  • Publication number: 20100214870
    Abstract: Methods and systems for investigating subterranean formations are disclosed. A method for extracting geological horizon on-demand from a 3D seismic data set, comprises collecting 3D seismic data and generating 3D seismic extrema cubes; obtaining a user-defined seed point in the 3D seismic data set; determining a starting extrema point for extracting the geological horizon, wherein the starting extrema point is associated with the seed point; growing an extrema patch consisting of multiple extrema points from multiple traces, wherein the growth begins from the starting extrema point; capturing statistics of the growing extrema patch; and outputting the extrema patch as the geological horizon, including spatial and attribute statistics.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 26, 2010
    Inventors: Randolph Pepper, Gang Fan, Terje Iversen, Dong Wang
  • Patent number: 7769546
    Abstract: A method of determining a horizon volume. In one embodiment, the horizon volume is determined from obtained seismic information, and maps the obtained seismic information onto a flattened volume such that in the flattened volume, horizons represented in the obtained seismic information are shifted to be substantially coplanar with a surface defined by the horizon volume as an estimate of a single chronostratigraphic time such that the parameters of the flattened volume include (i) a two-dimensional position in a surface plane, and (ii) a metric related to chronostratigraphic time.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: August 3, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jesse Lomask, James Rickett, Julian Clark
  • Patent number: 7769545
    Abstract: A method of determining geological information related to a subsurface volume. In one embodiment, the method comprises obtaining a seismic information related to a subsurface volume; determining a horizon volume that automatically maps the seismic information into a flattened volume, wherein one axis of the flattened volume corresponds to chronostratigraphic time, and wherein horizons represented by the seismic information are automatically accounted for in the horizon volume, and are shifted by the horizon volume into the flattened volume to be substantially planar and substantially perpendicular to the axis of the flattened volume that corresponds to chronostratigraphic time; determining a derivative of the horizon volume with respect to chronostratigraphic time; and determining geological information related to the subsurface volume based on the derivative of the horizon volume with respect to chronostratigraphic time.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: August 3, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jesse Lomask, James Rickett, Julian Clark
  • Patent number: 7768872
    Abstract: The present invention comprises a method of choosing a cell structure for seismic gathers dictating a grid of azimuth-offset bins that can be of various shapes and sizes. Processes that use offset-azimuth information are optimized to operate on these cells of azimuth-offset bins and invert for seismic properties. The method provides for acquisition of 3D seismic data, selecting a seismic gather bin for sorting the data, selecting at least one cell structure for the gather that may or may not be space filling, and sorting the data in to the cell structure of the gather bin. The cell structures may be any shape including hexagonal, and may be of variable sizes and may overlap.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: August 3, 2010
    Assignee: Ion Geophysical Corporation
    Inventors: Russell Aaron Kappius, Edward Louis Jenner
  • Publication number: 20100172209
    Abstract: Implementations of various technologies for a method for processing seismic data. A first portion of a record of pre-stack seismic data may be displayed in a three-dimensional XYZ (3-D XYZ) space. A selection may be received of a second portion of the record of the pre-stack seismic data within the first portion. One or more attributes may be determined that define the second portion. One or more regions may be identified within the record of the pre-stack seismic data having the attributes that define the second portion.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 8, 2010
    Inventors: Matthew C. Miller, Richard Tachon, Alan G. Teague, Debra M. Dishberger, Yann Cudennec, Kamran Nadim, Stephen David Hall
  • Patent number: 7702463
    Abstract: Systems and methods for enhancing the resolution of a seismic data image displayed on a face of a sampling probe. The enhanced image represents a maximum resolution of at least a portion of the seismic data image. The seismic data image is enhanced by extracting seismic data that are perpendicular to a reflection surface that is closest to a center of the sampling probe and positioning the extracted seismic data in a visible planar face of the sampling probe.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 20, 2010
    Assignee: Landmark Graphics Corporation, a Halliburton Company
    Inventor: Stewart A. Levin
  • Patent number: 7697373
    Abstract: A method and computer instructions on computer readable media for determining and analyzing spatial changes in the earth's subsurface associated with dip vectors measured using 3D data in regions near a fluid contact or seismic flat spot event. The method obtains seismic attribute data, then derives corresponding 3D dip and azimuth as a 3D volume and derives corresponding 3D reliability volumes or 3D censor volumes. A set of vector is formed within a local subvolume of interest interior to the focused subvolume of interest for each reliability location, and a subset of local vectors within a user specified deviation of the azimuth of the structural dip vector are identified. A set of candidate flat spot dip vectors within the local subvolume of interest are identified enabling a significance measure for each vector within the set of candidate flat spot dip vectors to be determined.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: April 13, 2010
    Inventor: Michael John Padgett
  • Patent number: 7630872
    Abstract: A method for displaying a formation model includes displaying a trajectory representing a three-dimensional structure of the wellbore; and displaying objects representing a bed boundary along the trajectory, wherein the objects are displayed at distances from the trajectory according to measurement data, wherein the objects are displayed in orientations reflecting azimuth angles of planes corresponding to the bed boundary.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: December 8, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Peiwen Xia, Jan W. Smits, Lawrence Chou, Qiming Li, Dzevat Omeragic, James F. Bristow, Paul A. Wand, Jean-Michel Denichou
  • Patent number: 7617083
    Abstract: A method for simulating flows in reservoirs, such as hydrocarbons, by means of chimera type grid which fluid generates a chimera grid made up of a set of elementary grids for accounting for characteristics of the flows and of the geometry (e.g., radial grid in the well zone and CPG grid for the reservoir) so that their union covers the entire simulation domain and that there is a minimum overlap between two neighboring elementary grids. Interpolation parameters allowing connection of the flows calculated on the grid to the flows calculated on the neighboring grids are then determined on the border of each elementary grid. Finally, flows are simulated within the reservoir and the well, and the variables describing the flow on the border of the overlap zones are interpolated using the interpolation parameters.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: November 10, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Chakib Bennis, Isabelle Faille, Lionel Ladouari, Roland Masson, Bertrand Moraisin
  • Patent number: 7596056
    Abstract: The invention relates to a method for fracture plane reconstruction in a three-dimensional set (20) of values, comprising the steps of providing a computer with the three-dimensional set, display by the computer of a succession of plane sections (10) of the three-dimensional set, selection by the user of points of the fracture plane over some of these sections during their display; and reconstruction by the computer of the fracture plane from the selected points.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: September 29, 2009
    Assignee: Total S.A.
    Inventors: Naamen Keskes, Marc Donias, Yannick Berthoumieu, Sébastien Guillon
  • Patent number: 7545704
    Abstract: A method for analyzing seismic data from a formation. The method may first receive two-dimensional (2-D) seismic data of a formation comprising a number of individual seismic lines acquired over an exploration area and having a large interline spacing. The 2-D seismic data may then be preprocessed to enhance diffracted energy. For each respective hypothetical diffractor location, the method may then search for coherent diffraction arrivals on nearby 2-D seismic lines consistent with the respective hypothetical diffractor location. The method may then store information regarding identified diffractor locations. The method may then create a map based on the identified diffractor locations, wherein the map illustrates areas of high diffraction. The map may then be displayed on a display, wherein the map is useable to assess the formation.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: June 9, 2009
    Assignee: Landmark Graphics Corporation
    Inventor: Stewart Arthur Levin
  • Patent number: 7542037
    Abstract: A method for modeling geological structures includes identifying fault planes in a geologic structure, and creating a set of substantially vertically oriented pillars along the fault plane. The pillar grids are then combined into a common three-dimensional grid pillar network, and a two-dimensional plane is defined that intersects the middle node of the pillars. Planes are identified that are oriented in the substantially horizontal direction and horizontal node points are created, and such a process is repeated for other node levels. A skeleton grid is then created by drawing a substantially vertically oriented pillar through each corresponding grid intersection, and then primary horizons as defined by interpretation of seismic data are inserted into the skeleton grid. And, a final scale resolution is created by dividing the spaces bounded between actual horizons and fault planes, and eventual actual part of the outer boundary into one or more horizontally oriented fine layers.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: June 2, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Nils P. Fremming