Synthetic Seismograms And Models Patents (Class 367/73)
  • Patent number: 10877171
    Abstract: Wavelet estimation may be performed in a reservoir simulation model that is constrained by seismic inversion data and well logs. A synthetic seismic trace is generated along with an estimated wavelet. The reservoir simulation model is revised based on results from model comparisons to actual data or base seismic data and is then used to perform a wavelet estimation. The estimated wavelet may then be used to plan further production at the well site environment, additional production at additional well site environments or any other production and drilling operation for any given present or future well site environment.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 29, 2020
    Assignee: Landmark Graphics Corporation
    Inventors: Travis St. George Ramsay, Felix Rafael Segovia
  • Patent number: 10841006
    Abstract: A signal-to-noise ratio (SNR) estimation method includes an optical signal transmission step of inserting at least one pair of signal sequences into transmission data and transmitting the transmission data into which the at least one pair of signal sequences is inserted, a signal sequence extraction step of extracting the at least one pair of signal sequences from a received signal obtained by receiving the transmitted transmission data, an inner product calculation step of calculating an inner product value of the extracted at least one pair of signal sequences, a reception power calculation step of calculating reception power of the extracted at least one pair of signal sequences, and an SNR calculation step of calculating an SNR of the at least one pair of signal sequences on the basis of the calculated inner product value and the calculated reception power.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: November 17, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Seiji Okamoto, Yoshiaki Kisaka, Kengo Horikoshi, Mitsuteru Yoshida, Masahiro Suzuki
  • Patent number: 10824536
    Abstract: Embodiments of the present disclosure present devices, methods, and computer readable medium for techniques for measuring operational performance metrics, and presenting these metrics through an application programming interface (API) for developers to access for optimizing their applications. Exemplary metrics can include central processing unit or graphics processing unit time, foreground/background time, networking bytes (per application), location activity, display average picture luminance, cellular networking condition, peak memory, number of logical writes, launch and resume time, frame rates, and hang time. Regional markers can also be used to measure specific metrics for in application tasks. The techniques provide multiple user interfaces to help developers recognize the important metrics to optimize the performance of their applications. The data can be normalized over various different devices having different battery size, screen size, and processing requirements.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: November 3, 2020
    Assignee: Apple Inc.
    Inventors: Amit K. Vyas, Abhinav Pathak, Anthony R. Newnam, Anshul Dawra, Vincent B. Yeh, Steve Brashear, Andreas C. Bergen, Yue Li, Rohit Mundra, Ritika Kalia, Anca A. Chandra, Sanket Bedare
  • Patent number: 10802171
    Abstract: A system and method combines model-based inversion and supervised neural networks to develop high resolution rock property volumes from surface seismic data. These volumes have higher frequency and are calibrated to fit well log data. In addition to rock volumes, a Reflection Coefficient (RC) volume is derived from the acoustic impedance volume. The RC volume has much higher frequency, better lateral continuity, and ties to the well logs better than conventional seismic or frequency enhanced data. By interpreting and mapping with this RC volume, a much more accurate depth model can be built, which allows for a horizontal well to be accurately drilled.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 13, 2020
    Assignee: Pioneer Natural Resources USA, Inc.
    Inventor: Robert A. Meek
  • Patent number: 10754050
    Abstract: One embodiment of generating a pore pressure prediction through integration of seismic data and basin modeling includes crossplotting seismically derived velocities and effective stress at spatial coordinates; defining seismic transform functions and an uncertainty range from the crossplotting; transforming the seismically derived velocities into calculated effective stress using selected seismic transform functions and calculating pore pressure using an equation transforming the calculated effective stress into calculated pore pressure; identifying a subset of the selected seismic transform functions, where the subset is identified in response to the calculated pore pressure being adequate based on a comparison; using an inverse of the subset to convert the effective stress from the basin model into basin model derived velocities; building a hybrid velocity model by selecting velocities from the basin model derived velocities or from the seismically derived velocities in each region; and generating a digital
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 25, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Marek Kacewicz, Maisha Lara Amaru
  • Patent number: 10739482
    Abstract: The technical solution of the present application is applicable to the technical field of geophysical exploration, and provides a surface wave prospecting method and an acquisition equipment. This method comprises: obtaining vibration data by a vibration collecting device; calculating a dispersion graph by applying a vector wavenumber transform method to the vibration data, extracting dispersion curves from the dispersion graph, wherein the dispersion curves include fundamental mode and higher modes of dispersion curves of surface wave; establishing an initial stratigraphic model according to the dispersion graph; and performing a dispersion curves inversion based on the initial stratigraphic model and an inversion algorithm.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: August 11, 2020
    Assignee: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiaofei Chen, Zhentao Yang, Jiannan Wang
  • Patent number: 10739484
    Abstract: A computer implemented method for denoising a set of seismic datasets, specifically belonging to different 3D subsets of a 4D survey the method including: (a) receiving a baseline and a monitor seismic dataset which were acquired by surveying over the same subsurface formation over different periods of time; (b) cross-equalizing the monitor seismic dataset to match to the baseline seismic dataset in terms of amplitude, frequency, phase and timing of events; (c) computing an initial 4D difference between the monitor and baseline seismic datasets; (d) formulating a common noise template from the initial 4D difference; (e) de-noising the baseline and monitor seismic datasets, independently, using the common noise template in a curvelet domain; (f) updating the initial 4D difference to form an updated 4D difference, which reflects de-noised baseline and monitor datasets from step (e); and iterating the steps (d) through (F) until the updated 4D difference satisfies a predetermined criteria.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 11, 2020
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Arjun Srinivasan
  • Patent number: 10732310
    Abstract: A method to model a subterranean formation of a field. The method includes obtaining a seismic volume comprising a plurality of seismic traces of the subterranean formation of the field, computing, based on the seismic volume, a seismically-derived value of a structural attribute representing a structural characteristic of the subterranean formation, computing, based on a structural model, a structurally-derived value of the structural attribute, the structural model comprising a plurality of structural layers of the of the subterranean formation, comparing the seismically-derived value and the structurally-derived value to generate a difference value representing a discrepancy of modeling the structural attribute at a corresponding location in the subterranean formation, and generating a seismic interpretation result based on the difference value and the corresponding location.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: August 4, 2020
    Assignee: Schlumberger Technology Corporation
    Inventor: Laurent Arnaud Souche
  • Patent number: 10705250
    Abstract: A computer-implemented method for reservoir volumetric estimation, a non-transitory computer-readable medium, and a computing system. The method may include running a molecular dynamics simulation of a fluid-rock model of a first reservoir system at a plurality of pressures. The fluid-rock model includes a fluid that is at least partially adsorbed in the first reservoir system at one or more pressures of the plurality of pressures. The method may also include calculating a plurality of isothermal density profiles of the fluid in the first reservoir system, in association with the plurality of pressures using a result of the molecular dynamics simulation. The method may further include determining a first gas accumulation of the fluid in the first reservoir system for the plurality of isothermal density profiles. The first gas accumulation is at least partially a function of a pore surface area of a sample of the first reservoir system.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: July 7, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Mery Diaz Campos, Ravinath Kausik Kadayam Viswanathan
  • Patent number: 10677051
    Abstract: Methods, apparatus, and articles of manufacture are disclosed to characterize acoustic dispersions in a borehole. An example apparatus includes a dispersion analyzer to characterize an acoustic wave dispersion in a borehole in a formation by calculating a quality indicator corresponding to the acoustic wave dispersion, and a report generator to prepare a report including a recommendation to perform an operation on the borehole based on the quality indicator.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: June 9, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Naoki Sakiyama, Hiroaki Yamamoto, Takeshi Endo, Denis Syresin
  • Patent number: 10677948
    Abstract: A method of identifying bounded hydrocarbon formations of interest in a seismic data set includes obtaining a seismic data set, pre-processing the seismic data set, inputting the plurality of graphical model inputs and one or more rules to a graphical model, wherein the rules define a relationship between a plurality of attributes of a bounded hydrocarbon formation, running a graphical model on the graphical model inputs, post-processing the graphical model outputs, and displaying the ranked clusters in order of rank.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: June 9, 2020
    Assignees: GENERAL ELECTRIC COMPANY, EXXONMOBIL UPSTREAM RESEARCH COMPANY
    Inventors: Ali Can, Erhan Bas, Weina Ge, Shubao Liu, Xiaojie Huang, Mary Katherine Johns, Mark Wayne Dobin
  • Patent number: 10670750
    Abstract: A multi-stage FWI workflow uses multiple-contaminated FWI models to predict surface-related multiples. A method embodying the present technological advancement, can include: using data with free surface multiples as input into FWI; generating a subsurface model by performing FWI with the free-surface boundary condition imposed on top of the subsurface model; using inverted model from FWI to predict multiples; removing predicted multiples from the measured data; using the multiple-free data as input into FWI with absorbing boundary conditions imposed on top of the subsurface model; and preparing a multiple free data set for use in conventional seismic data processing.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: June 2, 2020
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Tetyana Vdovina, Reeshidev Bansal, Anatoly Baumstein, Yaxun Tang, Di Yang
  • Patent number: 10670755
    Abstract: Systems and methods for refining estimated effects of parameters on amplitudes are disclosed. Exemplary implementations may: (a) obtain ranges of parameter values for individual parameters within a subsurface region of interest; (b) generate a first model of the subsurface region of interest; (c) calculate a synthetic seismogram from the first model to determine corresponding amplitudes; (d) store results of applying the synthetic seismogram; (e) repeat steps (b)-(d) for multiple additional models; (f) obtain a subsurface distribution; (g) apply the subsurface distribution to the multiple models and the corresponding amplitudes; (h) generate a representation; and (i) display the representation.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 2, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Anandaroop Ray, Prasenjit Roy, James Magill, David Bartel, Reynaldo Cardona, Kabilan Krishnamurthy
  • Patent number: 10546394
    Abstract: A system, method and program product for annotating visualizations with uncertainty information. A system is provided that includes a visualization importer that imports a generated visualization; an uncertainty processor that locates a region of uncertainty in the generated visualization; and a graphics annotator that generates an annotated visualization having uncertainty artifacts that visually identify the region of uncertainty.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: January 28, 2020
    Assignee: International Business Machines Corporation
    Inventors: Paul Borrel, Alvaro Bueno Buoro, Carmen Nilda Mena Paz
  • Patent number: 10528681
    Abstract: In an exemplary embodiment, a method and system is disclosed for developing a subterranean geomechanics model of a complex geological environment. The method can include estimating a pore pressure field, a stress field, a geomechanics property field, and a geological structure field from a geological concept model; geostatistically interpolating vectors and tensors from the estimated fields; and combining the results from the estimated fields and the geostatistically interpolated vectors and tensors to derive a geostatistical geomechanical model of the geological environment.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: January 7, 2020
    Assignee: GeoScale, Inc.
    Inventor: Elan Yogeswaren
  • Patent number: 10514475
    Abstract: A method for processing seismic data includes obtaining a velocity model, determining a critical angle for an interface represented in the velocity model based on a ratio between velocity of the seismic wave on first and second sides of the interface, determining an orientation of a normal vector extending normal to a location of the interface, determining an orientation of an arrival direction vector of a wavefield at the location of the interface, calculating an angle between the normal vector and the arrival direction vector, determining that the angle between the normal vector and the arrival direction vector is greater than the critical angle at the location, and attenuating the wavefield associated with the location in response to determining that the angle between the normal vector and the arrival direction vector is greater than the critical angle at the location.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: December 24, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Richard Coates, Cintia Lapilli, Hannah Flath, Dmitry Kulakov
  • Patent number: 10452657
    Abstract: Sub-queries for a query are determined. The query is for retrieving a data item of a data graph. The data graph stores representations of the data item. Each representation of the data item stores knowledge represented by the data item in a different way or manner. Each sub-query corresponds to a different representation by which the data graph stores the data item. The sub-queries are evaluated to determine an appropriate representation of the data item in fulfillment of the query without duplicatively traversing the data graph, such as by reusing evaluation results of the sub-queries that overlap one another.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 22, 2019
    Assignee: International Business Machines Corporation
    Inventor: Scott N. Gerard
  • Patent number: 10444387
    Abstract: A system (100) for monitoring a subterranean structure comprises an array (10) with n acoustic sensors capable of detecting P-waves and/or S-waves from the subterranean structure and a central controller (120) for receiving a signal (X) from the sensors. The system further comprises a lookup table (20) comprising a pre-computed travel time curve (24) expressed as relative arrival times of a signal from a location (Lm) to each of the sensors (1-n); a comparison unit for comparing the received signal (X) with the pre-computed travel time curve (24), and means for raising an alarm if the received signal (X) matches the precomputed travel time curve (24). Preferably, the alarm is raised if a computed semblance value (26, 27) exceeds a predefined threshold. The system may monitor several locations (Lm) in parallel using a fraction of the computer resources and time required by prior art techniques.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: October 15, 2019
    Assignee: OCTIO AS
    Inventors: Helge Brandsaeter, John Even Lindgård, Tatiana Matv̲eeva
  • Patent number: 10416348
    Abstract: Inversion techniques are provided for imaging subsurface regions from geophysical data sets. The inversion techniques provide a geophysical data set containing data measured from a subsurface region to an objective function. These techniques further optimize the objective function to invert for an implicitly represented geologic structure of the subsurface region and at least one geophysical parameter of the subsurface region. In addition, the inversion techniques use a computer system to present results produced by the objective function optimization.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 17, 2019
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Huseyin Denli, Jeremy S. Brandman
  • Patent number: 10400570
    Abstract: A method for monitoring condition of a wellbore includes initializing a value of at least one parameter having a relationship to likelihood of a drill string becoming stuck in a wellbore (the HCF). During drilling operations, at least one drilling parameter having a determinable relationship to the HCF is measured. In a computer, the value of the HCF is recalculated based on the at least one measured parameter. The initial value of the HCF and the recalculated values of the HCF are displayed to a user.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: September 3, 2019
    Assignee: Schlumberger Technology Corporation
    Inventors: Oney Erge, James C. Brannigan, Wayne Kotovsky, Ginger Hildebrand
  • Patent number: 10379240
    Abstract: Methods and apparatuses are disclosed that assist in correlating subsequent geophysical surveys. In some embodiments, geophysical data may be generated including a first set of data from a monitor survey that is matched with a second set of data from a baseline survey. An attribute value may be generated for each datum in the first set of data and each attribute value generated may be stored with its corresponding datum. Then, the first set of data may be processed based on the stored attribute values. In some embodiments, the attribute values may be based upon the geometric closeness of sources and receivers in the baseline and monitor surveys.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: August 13, 2019
    Assignee: ION Geophysical Corporation
    Inventor: John Gregor
  • Patent number: 10359529
    Abstract: A method can include receiving locations of microseismic events associated with a fracturing operation performed in a geologic environment; determining an individual correlation exponent for one of the microseismic events based at least in part on distances where each of the distances is between the location of the one microseismic event and a location of another one of the microseismic events; and, based at least in part on the individual correlation exponent, associating the one of the microseismic events with a fracture generated or activated by the fracturing operation.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: July 23, 2019
    Assignee: Schlumberger Technology Corporation
    Inventor: Michael John Williams
  • Patent number: 10330824
    Abstract: The present invention relates to the processing of well data obtained from a completed wellbore. This processing comprises receiving initial well data comprising at least one lithologic segment, each segment representing a lithologic layer each of which comprises a line of inclination or a surface of inclination. This processing furthermore comprises converting the initial well data into restored well data; and delivering the restored well data. The conversion of the initial well data comprises, for each lithologic segment, projecting said lithologic segment onto a normal to the line of inclination or to the surface of inclination to form a projected lithologic segment, and the concatenation of at least one projected lithologic segment to form restored well data.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: June 25, 2019
    Assignee: TOTAL SA
    Inventor: Gérard Massonnat
  • Patent number: 10324205
    Abstract: Computing device, computer instructions and method for determining an image of a surveyed subsurface. The method includes receiving recorded wave fields D recorded with seismic sensors over the subsurface; generating a series of modified recorded wave fields Dn based on the recorded wave fields D; iteratively applying an objective function Fi to (1) one element Di of the series of modified recorded wave fields Dn and (2) predicted wave fields Pmi, where “i” is an index associated with a given iteration; calculating with a computing device an updated velocity model mi+1 based on a previous velocity model mi and a step length; and producing the image of the subsurface based on the recorded wave fields D and the updated velocity model mi+1. The predicted wave fields Pmi are predicted by the previous velocity model mi.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 18, 2019
    Assignee: CGG SERVICES SAS
    Inventors: Min Wang, Yi Xie, Weiquan Xu, Stephen Kefeng Xin
  • Patent number: 10274641
    Abstract: The present invention relates to a method of assistance in geological modeling by grouping meshes together in a geological model comprising a plurality of meshes, each mesh of said model being associated with at least one digital parameter representing a geological property. For at least one column of at least n meshes of the model, a plurality of decompositions of said column into m subsets of adjacent meshes can be determined. Then, for each composition determined, one determines, for each one of the m subsets, a new digital parameter associated with said subset depending on the digital parameters associated with the meshes of said subset. Finally, one can determine a dispersion value of said decomposition depending, at least, on the new digital parameters associated with said subsets.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: April 30, 2019
    Assignee: Total SA
    Inventor: Gérard Massonnat
  • Patent number: 10267940
    Abstract: Techniques are disclosed relating to reducing noise in geophysical marine survey data. According to some embodiments, a complex-valued, directional, multi-resolution (CDM) transform may be applied to marine survey input data and a noise template. Global adaptation constraints and, optionally, local adaptation constraints may be generated dependent on the transformed marine survey data and transformed noise template. The transformed noise template may be adapted dependent upon the global (and, optionally, local) constraints, and the adapted transformed noise template may be subtracted from the transformed marine survey data to remove noise. An inverse CDM transform may be performed on the resulting data to generate reduce-noise marine survey data in the input domain.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 23, 2019
    Assignee: PGS Geophysical AS
    Inventors: Truong Nguyen, Richard Dyer
  • Patent number: 10261205
    Abstract: A system for processing seismic data for a geologic formation generated by an array of acoustic transducers responsive to an acoustic source may include a seismic data storage device and a processor. The processor may cooperate with the seismic data storage device to use a volatility measurement model to generate current correlations of data from the array of acoustic transducers based upon a current estimate for at least one of density and velocity of the geologic formation, and compare the current correlations to a threshold. When the current correlations are below the threshold, the processor may update the current estimate for at least one of density and velocity of the geologic formation, and repeat use of the volatility measurement model to generate updated correlations of data from the array of acoustic transducers based upon the updated estimate for at least one of density and velocity of the geologic formation.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: April 16, 2019
    Assignee: HARRIS CORPORATION
    Inventors: Jessica L. Ascough, Mark D. Rahmes, George W. Lemieux, Raquel M. Cohen
  • Patent number: 10254441
    Abstract: Disclosed is a method of modelling a subsurface volume, and a corresponding computer program and apparatus. The method comprises defining a regular planar grid of regularly arranged locations in the two dimensions substantially parallel to the surface, and calculating a plurality of one dimensional arrays, each one dimensional array extending from a different one of the regularly arranged locations, in the direction from surface to subsurface. Each of the one dimensional arrays comprises a plurality of one dimensional cells, wherein the cells are delineated according to actual geological features of the subsurface volume.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 9, 2019
    Assignee: Total S.A.
    Inventor: Pierre Daniel Thore
  • Patent number: 10215869
    Abstract: A method is described that includes receiving one or more seismic measurements corresponding to a plurality of source and receiver locations and providing an earth model for a geologic medium having a heterogeneous tilted symmetry axis. The earth model includes a nonzero shear velocity in the direction of the symmetry axis. The one or more seismic measurements are propagated over a plurality of time-steps in accordance with the earth model and a set of energy-conservative self-adjoint pseudoacoustic equations. The set of energy-conservative self-adjoint pseudoacoustic equations describes one or more seismic wavefields.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: February 26, 2019
    Assignee: CHEVRON U.S.A. INC.
    Inventors: John Kenneth Washbourne, Kenneth Paul Bube, Raymond Andrew Ergas, Tamas Nemeth
  • Patent number: 10198141
    Abstract: A system and method for managing location-based information associated with the oil and gas industry. The system, in one embodiment, comprises a computing device connected to a location-based service, wherein the location-based information comprises energy operations data which is associated with a specific geographic location, and wherein the computing device is associated with a graphical map interface. The graphical map interface is configured to display location based information. The graphical map interface can also be configured to display an indication of the frequency of an event. The location based information can be associated with a geofence.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 5, 2019
    Inventors: Gary Sorden, Michael Hinsley
  • Patent number: 10121225
    Abstract: Visualization of three-dimensional data without loss of desired characteristics is enabled by receiving mapping data pertaining to a physical object in the world, the physical object represented by a series of segments, the three-dimensional data including a predetermined number of measurements of the series of segments, storing the mapping data in data storage and generating an average measurement value for each of the series of segments. The process further involves generating a first generalization of the mapping data by selecting, for each of the series of segments, a desired number of measurements, fewer than the predetermined number of measurements, that represent the largest deviations from the respective average measurement, storing the selected measurements as the first generalization of the mapping data in the data storage, and upon request, providing access to the first generalization of the mapping data for use in rendering the mapping data as three-dimensional data.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: November 6, 2018
    Assignee: Finger Food Studios, Inc.
    Inventors: Botrous Gerges, Steven William Pridie
  • Patent number: 10088586
    Abstract: Systems and methods are provided for detecting subterranean properties associated with a geological domain. One example method may comprise obtaining waveform information corresponding to a geological domain. The method may further comprise performing a global inversion on the waveform information. Furthermore, the method may comprise performing a deterministic inversion on the waveform information. The method may also comprise determining one or more subterranean properties associated with the geological domain based at least in part on the global inversion and the deterministic inversion.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: October 2, 2018
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Michael McVay, Khiem Tat Tran
  • Patent number: 10061046
    Abstract: Microseismic mapping using buried arrays with the integration of passive and active seismic surveys provides enhanced microseismic mapping results. The system is initially set up by recording seismic data with the buried array installation while shooting a significant portion of the 3D surface seismic survey. The 3D surface seismic survey provides the following data: shallow 3D VSP data from the buried arrays; P-wave and converted wave data for the area covered by the buried array that benefits from the planned data integration processing effort; and microseismic data and associated analysis.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: August 28, 2018
    Assignee: ION Geophysical Corporation
    Inventors: Gregg S. Hofland, Jacques P. Leveille, Daniel S. Kahn, Kees Faber, Rick Laroo, Jerry L. Lawson, William A. Balla, Michael J. Saur
  • Patent number: 10055884
    Abstract: The subject matter of this specification can be embodied in, among other things, a system that includes a three-dimensional fabricator. An image processing module acquires an image of a rock sample having a network of pores, a transformation module transforms the image into a binary matrix and determine a set of statistical moments of the binary matrix, a layer generation module generates a first representation of a first stochastic layer based on the set and emulative of the rock sample and generates a second representation of a second stochastic layer based on the set and emulative of the rock sample. An arrangement module arranges the first representation and the second representation as adjacent layers of a three-dimensional model emulative of the rock sample, and provides the first representation and the second representation to the 3D fabricator for fabrication as a physical three-dimensional fluid micromodel emulative of the rock sample.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 21, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Ali Alkhatib, Amar Alshehri, Ming Han
  • Patent number: 10036821
    Abstract: A method for generating an improved stack from wide azimuth data. This is accomplished by displaying gather traces in a geometrically sensible way that depends on gather and processing type. Once a gather is available in such a manner, a geoscientist can use various geometric or freehand shapes to indicate which traces from the gather to stack and which to ignore. Given sufficient computing power, this can be done interactively, allowing a geoscientist to determine a set of traces that create an optimal stack at a single location in the output cube. Multiple locations can be improved in this manner and a final stack can be generated that contains a blended agglomeration of all of the improvements.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 31, 2018
    Assignee: SHELL OIL COMPANY
    Inventors: Chris Thomas Corcoran, Jonathan Lewis Sheiman, Mark Edward Stockwell
  • Patent number: 9977142
    Abstract: Method for simultaneously inverting full-wavefield seismic data (51) for multiple classes of physical property parameters (e.g., velocity and anisotropy) by computing the gradient (53), i.e. search direction (54), of an objective function for each class of parameters, then applying (preferably exhaustive) first-pass independent line searches to each parameter class to obtain the corresponding step size (55) along the search direction for each parameter class; then without yet updating the model, using the step sizes to define a relative scaling between gradients of all parameter classes. Next, each scaled search direction is recombined to form a new search direction (56), and a new second-pass line search is performed along the new search direction (57), and all parameters are simultaneously updated with the resulting step size (58). Alternatively to the preceding alternating two-pass embodiment, the model may be updated after each first-pass line search, and no second-pass line search is performed.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: May 22, 2018
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Yaxun Tang, Gboyega Ayeni
  • Patent number: 9940416
    Abstract: Described herein is an apparatus and method for allocating hardware-based processing units for a wave modeling computation. The method generates a computational domain representing a physical region in which wave amplitudes for physical waves are determined. The domain is divided into a plurality of sub-domains, whereafter the method determines which sub-domains of the plurality of sub-domains are active. Further, the method, for each computational step of a plurality of computational steps and in each active sub-domain, executes a first portion of the wave modeling computation corresponding to the active sub-domain by at least one available hardware-based processing unit and determines whether the active sub-domain will remain active in a next computational step of the plurality of computational steps. When the active sub-domain is determined to become inactive in the next computational step, the method allocates the at least one available hardware-based processing unit to other computational tasks.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: April 10, 2018
    Assignee: SIMULA INNOVATION AS
    Inventor: Marcus Noack
  • Patent number: 9890616
    Abstract: Methods, systems, and computer program products for designing a horizontal well in a hydrocarbon field having naturally fractured reservoir integrates workflows from multiple oilfield related disciplines, including a geophysics workflow, geomechanics workflow, and completion and production workflow to achieve an a dynamic and integrated solution.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: February 13, 2018
    Assignee: Landmark Graphics Corporation
    Inventors: Luis A. Pabon, Daniel A. Revilla, Libertad Sanchez
  • Patent number: 9869783
    Abstract: An example method for tomographic migration velocity analysis may include collecting seismographic traces from a subterranean formation and using an initial velocity model to generate common image gathers and a depth image volume based, at least in part, on the seismographic traces. A structure tensor may be computed with the depth image volume for automated structural dip and azimuth estimation. A semblance may be generated using said plurality of common image gathers and said structure tensor. Image depth residuals may be automatically picked from said semblance. A ray tracing computation may be performed on said initial velocity models using said structure tensor. An updated velocity model may be generated with a tomographic inversion computation, wherein said tomographic inversion computation uses said plurality of image depth residuals and said ray tracing computation.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: January 16, 2018
    Assignee: Landmark Graphics Corporation
    Inventors: Shengwen Jin, Shiyong Xu, Fan Xia, Richard Ottolini, Yiqing Ren
  • Patent number: 9864083
    Abstract: A full wave inversion (FWI) may utilize an Amplitude-Frequency-Differentiation (AFD) or a Phase-Frequency-Differentiation (PFD) operation to form a velocity model of a subterranean formation utilizing recovered low wavenumber data. Received seismic data is processes to isolate two data signals at different frequencies. In an AFD operation, the two data signals are summed and the data of the envelope of the summed function is used for the FWI. In a PFD operation, the phase data of the quotient of the two data signals is used for the FWI. The FWI proceeds iteratively utilizing either the AFD or PFD data or with single frequency data until the cost function of the AFD or PFD is satisfied.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: January 9, 2018
    Assignee: Advanced Geophysical Technology, Inc.
    Inventor: Wenyi Hu
  • Patent number: 9864082
    Abstract: A method for migrating three dimensional seismic data in tilted transversely isotropic media (“TTI”) is based on generating numerical solutions to an exact relationship for a three dimensional dispersion relationship of seismic energy traveling through TTI media. The numerical solutions use selected input values of polar angle and azimuth angle of a transverse isotropic axis of symmetry, and selected values of Thomsen anisotropic parameters to generate tables of numerical values. Based on the tables of numerical values, optimized coefficients for a finite-difference relationship are estimated along multiple splitting directions. The seismic data are then migrated using a three dimensional Fourier finite difference extrapolation algorithm.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 9, 2018
    Assignee: PGS Geophysical AS
    Inventors: Alejandro Antonio Valenciano Mavilio, Nizar Chemingui, Sverre Brandsberg-Dahl
  • Patent number: 9835747
    Abstract: A fully automated method for correcting errors in one interpretation (13) of seismic data based on comparison to at least one other interpretation (14) of the same subsurface region. The errors may occur in any feature of the seismic data volume, for example a horizon, surface, fault, polyline, fault stick, or geo-body. In some embodiments of the invention, an error may be a hole in a horizon (53), and the whole is patched by a piece of a horizon in another interpretation (55). In an alternative embodiment of the invention, a single interpretation may be used to repair itself, for example by identifying similarly shaped, adjacent horizons (67), and merging them (68).
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: December 5, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Matthias Imhof, Ethan Nowak, Pavel Dimitrov
  • Patent number: 9708899
    Abstract: Apparatus and methods for controlling equipment to recover hydrocarbons from a reservoir including constructing a collection of reservoir models wherein each model represents a realization of the reservoir and comprises a subterranean formation measurement, estimating the measurement for the model collection, and controlling a device wherein the controlling comprises the measurement estimate wherein the constructing, estimating, and/or controlling includes a rolling flexible approach and/or a nearest neighbor approach.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: July 18, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Michael David Prange, William J. Bailey, Dadi Wang
  • Patent number: 9702993
    Abstract: Method for multi-parameter inversion using elastic inversion. This method decomposes data into offset/angle groups and performs inversion on them in sequential order. This method can significantly speed up convergence of the iterative inversion process, and is therefore most advantageous when used for full waveform inversion (FWI). The present inventive approach draws upon relationships between reflection energy and reflection angle, or equivalently, offset dependence in elastic FWI. The invention uses recognition that the amplitudes of small angle (near offset) reflections are largely determined by acoustic impedance alone (1), independent for the most part of Vp/Vs. Large angle (middle and far offset) reflections are affected by Ip, Vp/Vs (2) and other earth parameters such as density (3) and anisotropy.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: July 11, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Ke Wang, Spyridon Lazaratos
  • Patent number: 9684084
    Abstract: A roadmap for a field development strategy for optimal recovery is provided in a high quality 3D geological model. This geological model combines geological attributes, pore and rock properties for an optimum 3D representation of the reservoir thousands of feet beneath the surface. The model is based on the pertinent geological facies, derived from well core description and detailed studies of rock, as well as fluid and pore properties (Full Pore System) obtained from laboratory analyses of core material and well log data. These data differentiate various important pore throat and pore body regions and relationships, i.e., macroporosity and microporosity. Understanding hydrocarbon volumes in the various pore type groups and then establishing proper recovery techniques through focused laboratory studies yields a field development strategy that can significantly increase hydrocarbon recovery from a reservoir.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: June 20, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Roger R. Sung, Edward A. Clerke
  • Patent number: 9658353
    Abstract: A technique includes receiving data indicative of a wavefield in a processor-based system and processing the data on the processor-based system to generate a modeled wavefield. The processing includes varying boundary conditions of the modeled wavefield with respect to time to regulate coherent boundary reflections in the modeled wavefield.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 23, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Johan O. A. Robertsson, Robin Fletcher
  • Patent number: 9594802
    Abstract: Example embodiments involve a system, computer-readable storage medium storing at least one program, and computer-implemented method for graphical modeling and editing of database query statements. The method may include accessing a database query statement, and generating an abstract syntax tree (AST) representing a syntactic structure of the database query statement. The method may further include generating a graphical model of the database query statement based on the AST, and rendering the graphical model.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 14, 2017
    Assignee: SAP SE
    Inventors: Sundaresan Krishnamurthy, Vijayan Balasubramanian
  • Patent number: 9529944
    Abstract: A corridor modelling system models a corridor to be constructed along an existing terrain. The system obtains an electronic representation of the existing terrain, an electronic representation of a typical cross-section of the corridor, and an electronic representation of a 3D baseline of the corridor that aligns the typical cross-section relative to the existing terrain. The system also generates a digital surface model of the corridor based on the electronic representations. The system does so by extruding the typical cross-section along the 3D baseline and fundamentally modeling continuous surfaces of the corridor resulting from the extrusion as a collection of non-planar parametrically defined surfaces, rather than as a group of discrete facets formed from a triangulated irregular network.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: December 27, 2016
    Inventor: Paul T. Schrum, Jr.
  • Patent number: 9523782
    Abstract: The present disclosure provides a system and method for automatically identifying and classifying seismic terminations within a seismic data volume. A set of surfaces is obtained (step 303) describing the seismic data volume. A plurality of seismic terminations is identified within the set of surfaces (step 307). Based upon seismic attributes or geometric criterion, a termination direction can be determined (step 309) for at least one termination.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 20, 2016
    Assignee: ExxonMobile Upstream Research Company
    Inventor: Matthias G. Imhof
  • Patent number: 9518459
    Abstract: In one embodiment, a method includes facilitating a real-time display of drilling-performance data for a current well. The method further includes receiving new channel data for the current well from a wellsite computer system. The method also retrieving input data including historical drilling-performance data for an offset well relative to the current well. In addition, the method includes computing calculated data for the current well based on the channel data and the input data. Moreover, the method includes updating the real-time display with the calculated data.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: December 13, 2016
    Assignee: Petrolink International
    Inventors: Rafael Angel Bermudez Martinez, Concepcion Isidro Olán