Abstract: Machine data reflecting operation of a monitored system is ingested and made available for search by a data intake and query system (DIQS). Ingested data includes log data entries produced by an application that represent low-level instances of user interface or interaction events. Inference processing generates a new collection of data instances that each identifies a higher-level task performed by a user in a sequence of the low-level events without regard to any explicit task affiliation data component of the low-level instances. Information for the task may include a measure of confidence that each low-level event of the sequence is properly associated with the task. Tasks of the new collection may be advantageously visualized and included in downstream processing.

Abstract: A method may comprise recording a first reflected waveform with a first transducer to form a first data set from a first excitation, recording a second reflected waveform with a second transducer to form a second data set from a second excitation, estimating a first sensitivity correction factor for the first data set, applying the first sensitivity correction factor to at least a portion of the first data set to form a first sensitivity corrected data set. The method may further comprise estimating a second sensitivity correction factor for the second data set, applying the second sensitivity correction factor to at least a portion of the second data set to form a second sensitivity corrected data set, stacking the first sensitivity corrected data set amplitudes and forming a first image, stacking the second sensitivity corrected data set amplitudes and forming a second image, and comparing the images.

Abstract: A system to provide on-demand fetching of sequential sets of seismic data to local memory from slower storage mediums prior to performing computing operations, such as horizon auto-tracking, amplitude extraction and seismic attribute generation. As a result, the performance of the storage infrastructure (e.g., hard drives, storage filer “file server” over network, etc.) is maximized and the local memory/cache speed is fully utilized to deliver optimal system performance even when working with large seismic datasets that exceed the storage capacity of the local memory.

Abstract: A multimode seismic survey system is disclosed where seismic information for a given seismic survey is read out by different seismic units using different modes. Such multimode systems encompass hybrid arrays where information is read out via different output modes for a single seismic event, and other multimode arrays where seismic information is read out via different modes for different seismic events. The modes utilized in such arrays may include wireless, nodal and/or cable modes. The multimode arrays can be implemented using multimode seismic units or single mode seismic units. In any event, the multimode arrays can be utilized to achieve a combination of advantages associated with the different readout modes or to address any of various multimode mode contexts in relation to seismic surveys.

Abstract: A method for use in seismic imaging a subterranean geological formation, includes: displaying a gather of seismic images, the seismic images being generated from a set of seismic data representative of the geological formation; interactively selecting an illumination band based on the degree of signal and noise separation in the seismic images; decomposing each of the seismic images of the gather into a partial image, each partial image defined in the seismic image by the selected illumination band; interactively selecting at least a portion of one or more of the partial images based on a predominance of signal; interactively weighting the selected portions relative to the predominance of signal; stacking the selected, interactively weighted portions; and displaying an image of the stacked, weighted portions.

Abstract: The present invention is directed to a method and system for minimizing artifacts in a seismic image of a subsurface region of interest, wherein the image is determined a data beam set derived from recorded seismic data and a modeled beam set derived at least in part from a velocity model related to a subsurface region. The artifacts, which may result from cycle skipping and coherent noise, result in misalignment of the modeled and data beam sets. The present invention utilizes a Monte Carlo inversion technique to update the velocity model and thus minimize the artifact in the seismic image.

Abstract: A method for increasing similarity between a first seismic dataset and a second seismic dataset from at least one seismic survey of a subsurface. The first and second seismic datasets are migrated to a dip angle image domain. The migrated first and second seismic datasets are used in the dip angle image domain to calculate a set of decimating weights to be applied to the first seismic dataset and the second seismic dataset to maximize a similarity between the first seismic dataset and the second seismic dataset. The decimated weights are applied to the first and second seismic datasets, and an image of the subsurface is generated using the first seismic dataset and the second seismic dataset following application of the decimated weights.

Abstract: Method for determining visualization rendering parameters for seismic data to heighten subtle differences. The full data volume and at least one sub-volume are processed in the inventive method (12). Statistics are extracted for the data or attributes of the data (13). Rendering parameters are derived based on comparing and computing the statistical information for the volume and sub-volumes (14).

Abstract: A system and method are provided for visualizing an offset in static parameters in an echo sounding system by generating a difference grid by subtracting a first survey line from a second survey line to determine difference values at each point in the grid; and displaying the difference grid on a display device, where the difference values are represented on a visual scale. The difference values may be used to calibrate the echo sounding system or check the quality of the calibration of an echo sounding system.

Abstract: Systems and methods are provided for processing seismic data and displaying an output associated with the seismic data. A method includes: separating the seismic data into a fine-scale dataset and a coarse-scale dataset, wherein each dataset includes a non-zero portion of the data; applying a first interpolation to the coarse-scale dataset which results in an interpolated coarse-scale dataset; applying a second interpolation to the fine-scale dataset which results in an interpolated fine-scale dataset, wherein the first and second interpolation are different interpolations; summing together the interpolated coarse-scale dataset and the interpolated fine-scale dataset which results in a summed interpolated dataset; and displaying at least one image based on the summed interpolated dataset.

Abstract: A method for mapping and monitoring of hydraulic fracture includes capturing, using an array of sensors, a first magnetic image of a well pay zone. A second magnetic image is captured using the array of sensors, after a well bore is padded with a fluid. A background is established based on the first and the second magnetic images. A third magnetic image is captured using the array of sensors, after a doped proppant is injected into a stage. The third image is processed to subtract the background and to obtain information regarding distribution of the fluid and the proppant in the stage.

Abstract: A system for locating an interface between a first material and a second material including one or more acoustic sensing elements operatively arranged to measure a characteristic of one or more acoustic signals at a plurality of locations along a length thereof. An instrumentation unit is coupled with the one or more acoustic sensing elements, and arranged to determine a difference between at least a first value of the characteristic measured at a first location and a second value of the characteristic measured at a second location of the plurality of locations for identifying the interface between the first material and the second material as being located between the first and second locations if the difference is greater than a preselected threshold amount. A method of locating an interface is also included.

Abstract: According certain aspects, embodiments of the invention consider the problem of microseismic event localization from a parameter estimation perspective, and include a method and system for computing and displaying characteristics of event localization errors. According to certain other aspects, embodiments of the invention include techniques for deriving aggregate statistics from a set of event location estimates, including methods for computing and displaying the probability that an event occurred in any given volume, and methods for describing and displaying the smallest volume that contains a specified percentage of the event probability or expected to contain the specified percentage of the events.

Abstract: A method for performing chrono-stratigraphic interpretation of a subterranean formation. The method includes obtaining a seismic volume containing stratigraphic features of the subterranean formation deformed by structural events, performing structural restoration of the seismic volume to generate a restored seismic volume by removing deformation due to the structural events, performing a chrono-stratigraphic interpretation based on the restored seismic volume to generate chrono-stratigraphic objects each associated with a respective relative geologic age, and displaying the chrono-stratigraphic objects in a chrono-stratigraphic space according to the respective relative geologic age of each of the stratigraphic objects.

Abstract: A method for performing chrono-stratigraphic interpretation of a subterranean formation. The method includes obtaining a seismic volume containing stratigraphic features of the subterranean formation deformed by structural events, performing structural restoration of the seismic volume to generate a restored seismic volume by removing deformation due to the structural events, performing a chrono-stratigraphic interpretation based on the restored seismic volume to generate chrono-stratigraphic objects each associated with a respective relative geologic age, and displaying the chrono-stratigraphic objects in a chrono-stratigraphic space according to the respective relative geologic age of each of the stratigraphic objects.

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.

Abstract: An exemplary system for managing the deployment of a seismic data acquisition system uses a module configured to execute a plurality of task in the field by receiving one or more seismic devices. The module may include a power source that provides electrical power to the seismic devices. The module may also include a processor programmed to retrieve data stored in the seismic devices, perform diagnostics, facilitate inventory and logistics control, configure seismic devices and update data or pre-programmed instructions in the seismic device.

Abstract: A computer implemented method for the detection of features such as faults or channels in seismic images. First, edges are detected in a smoothed seismic image (106). To detect a fault line, an image intensity of the edges is projected in multiple spatial directions, for example by performing a Radon transform (118). The directions of maximum intensity are used to define a fault line (124c). To detect channels, smooth curves are identified within the detected edges (810). Sets of parallel smooth curves (812a) are then identified and used to define channels (812).

Abstract: A method for generating one or more maps of a survey area. In one implementation, the method may include receiving earth observation data, decomposing the earth observation data into pixels, georeferencing the earth observation data in pixel form with the curvature of the earth's surface, integrating the earth observation data in pixel form with seismic data, extracting one or more attributes from the integrated data and displaying the extracted attributes on one or more survey maps.

Abstract: One or more computer-readable media including computer-executable instructions to instruct a computing device to format multidimensional data, with respect to one or more dimensions of a multidimensional coordinate system, responsive to receipt of a first linear motion signal from manipulation of an input device; format multidimensional data, with respect to one or more dimensions of a multidimensional coordinate system, responsive to receipt of a second linear motion signal from manipulation of an input device where the first linear motion and second linear motion are orthogonal motions; format multidimensional data, with respect to one or more dimensions of a multidimensional coordinate system, responsive to receipt of a first rotational motion signal from manipulation of an input device; and format multidimensional data, with respect to one or more dimensions of a multidimensional coordinate system, responsive to receipt of a second rotational motion signal from manipulation of an input device where the fi

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.

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.

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.

Abstract: According to a preferred aspect of the instant invention, there is provided herein a system and method for imaging complex subsurface geologic structures such as salt dome flanks using VSP data. In the preferred arrangement, a receiver wave field will be downward continued through a salt flood model and a source wave field will be upward continued through a sediment flood model until they “meet” at the subsurface locations of the VSP receivers. The source and receiver wave fields will be cross correlated as an imaging condition at each depth interval.

Abstract: A piezoelectric thin film resonator includes: a piezoelectric thin film; a laminated structure which includes a first metal electrode film and a second metal electrode film that interpose at least a part of the piezoelectric thin film, and which is formed on a substrate; and an acoustic insulating layer which is formed on the substrate at a position corresponding to the laminated structure, wherein the first metal electrode film is formed on the substrate and the second metal electrode film is formed on the first metal electrode film while sandwiching the piezoelectric thin film, and a protection film laminated on the second metal electrode film is provided so as to cover the second metal electrode film.

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.

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.

Abstract: A method and system of detecting and mapping a subsurface hydrocarbon reservoir includes determining ratio data for a plurality of orthogonal spectral components of naturally occurring low frequency background seismic data. The ratio data may be compared, plotted, contoured and displayed as a subsurface hydrocarbon reservoir map or a hydrocarbon potential map. The ratio data may represent a vertical spectral component of the seismic data over a horizontal spectral component of the seismic data. The subsurface hydrocarbon reservoir map may include contouring the ratio data over a geographical area associated with the seismic data.

Abstract: Techniques for displaying sonic logging data that provide highly reliable, visual quality-control (QC) indicators. One aspect herein is directed to a display of sonic logging data corresponding to a slowness frequency analysis (SFA) projection log.

Abstract: A head-mounted display to visualize a medium through a surface by displaying an image characterizing the medium under the surface provided by a profiling system and referenced in the real environment of the user. An image of the medium under the surface is projected in front of one or both eyes of a person wearing the head-mounted display, in superimposition with the real environment of the user. The head-mounted display comprises a positioning sensor, such as an inertial positioning sensor, for determining its position and orientation in the real environment. As the user moves around the medium, the image of the medium is updated to display the medium as if it could be seen through the surface. In one embodiment of the invention, the image of the medium under surface is displayed in stereoscopy, the user thereby visualizing the medium in three dimensions.

Abstract: A method and system of detecting and mapping a subsurface hydrocarbon reservoir includes acquiring seismic data having a plurality of components, applying a data transform to the seismic data to obtain seismic data spectral component maxima and maxima profiles, and recording the maxima or maxima profile in a form for display.

Abstract: To generate an absorption parameter model, estimated values of an effective absorption parameter are received, where the estimated effective absorption parameter values represent absorption encountered by a seismic wave in a subterranean structure. Based on the estimated effective absorption parameter values, an absorption parameter model is generated that varies absorption parameter values along at least one dimension of the subterranean structure.

Abstract: A piezoelectric actuator includes a vibration plate covering pressure chambers and serving also as a common electrode, a piezoelectric layer arranged entirely on the upper surface of the vibration plate, an insulating layer formed entirely on upper surfaces of individual electrodes and the piezoelectric layer, and wirings formed on the upper surface of the insulating layer. A through hole is formed in the insulating layer at an area facing both one of the individual electrodes and one of the wirings, and the individual electrode and the wiring are connected by an electroconductive material filled in the through hole. With this, both the simplification of structure of electric contact and the improvement in reliability of electric connection can be realized, and a piezoelectric actuator is capable of suppressing the generation of excessive electrostatic capacitance during the application of drive voltage can be provided.

Abstract: A process and apparatus for producing signals for controlling a display to produce an image in an imaging system employing a plurality of transducers. First and second beam signals are produced in response to delayed channel signals associated with respective transducers, the delayed channel signals representing real and imaginary components of time domain signals associated with respective transducers suitably delayed to focus a receive beam pattern of the transducers at a beam angle, each of the first and second beam signals including separate real and imaginary component representations. The real and imaginary components of the first and second beam signals are combined to produce a composite beam signal, the composite beam signal including separate real and imaginary component representations.

Abstract: In accordance with the present invention, a method that utilizes 3D overall view (O-view) for interactively interpreting geophysical and geological data to produce instantaneously sub-surface geologic maps, geologic features, cross-sections and models, are disclosed. The system provides the user a new capability of interactively interpret seismic data for immediate response. The system allows users to make any corrections interactively on instantaneous basis that is necessary as the interpretation progresses.

Abstract: A computer display apparatus includes first and second display units operatively coupled to a display controller. The display controller receives imaging instructions for images and display mode instructions for displaying the images, and causes the display units to independently generate images from the imaging instructions according to the display mode instructions. The display controller may include a display processor programmed to generate pixel data according to the imaging instructions, and first and second refresh outputs programmed to independently generate image displays from the manipulated pixel data on the first and second display units in first and second display modes, respectively. A display re-mapper may manipulate the pixel data according to display mode instructions. A display memory fetcher may manipulate pixel data according to display mode instructions in response to a request for pixel data from the first and second refresh outputs independently.

Abstract: A method and apparatus for producing an amplitude value for use in controlling illumination of a pixel on a display, in response to a sampled sonar signal produced by an element of a sonar array. A pixel time associated with the pixel is found, the pixel time representing a time required for sound to travel a distance represented by the pixel, according to a range of distance to be viewed on the display. A sample point of the sampled sonar signal is then found, the sample point having a sample time nearest the pixel time. A delay value associated with the pixel is then found, the delay value including an array element delay value. A representation of a synthesized waveform is then produced, in response to the sonar signal, the representation comprising a plurality of sample points coinciding in time with the sample points of the sonar signal.

Abstract: The invention is a method for performing a stratigraphically-based seed detection in a 3-D seismic data volume. The method incorporates criteria that honor the layered nature of the subsurface so that the resulting seismic objects are stratigraphically reasonable. The method may be used to extract from a seismic data volume all seismic objects that satisfy the input criteria. Alternatively, the method may be used to determine the size and shape of a specific seismic object in a seismic data volume.

Abstract: A method for performing region growing in a data volume that accounts for noise in the data on a probabilistic basis. The data volume is divided into discrete cells, and a probability distribution for each cell's datum value is calculated. Each probability distribution is randomly sampled to generate one probabilistic, noise-free realization for the data volume, and region growing is performed using selected criteria. The process is repeated for different realizations until sufficient statistics are accumulated to estimate the probable size and connectivity of objects discovered.

Abstract: A graphical user interface (GUI) and control system for marine seismic data acquisition is described along with a method of real-time quality control of the seismic survey. The control system includes real-time data processing of individual source near-field measured signals and concurrent synthesis of array far-field signatures. The control system determines individual source out-of-specification conditions and computes far-field signatures based on an array configuration excluding the failed source. Source, array, and troubleshooting information are presented to a user in real-time over a GUI monitor to allow informed decision-making regarding continued and/or modified survey operations and operational parameters.

Abstract: The method for horizon binning for an area of interest entails merging an attribute file with a second horizon file, identifying an area of interest of the merged file, identifying a time range for a time horizon file or a depth range for a depth horizon file, to perform the analysis, proposing a theory that the identified area has a portion contiguous between a hydrocarbon and water-bearing area, binning the identified area of interest using a file with time or depth values, computing a calculated value for each bin, creating a plot of the computed value versus the first value for each bin, viewing the plot to ascertain if a magnitude shift corresponds to a fluid contact, using discontinuity of the water and hydrocarbon reservoir models to confirm the theory, and using the discontinuity to determine a boundary between the water and hydrocarbon reservoir model and the corresponding water and hydrocarbon reservoirs for an identified area.

Abstract: A parameter display portion of an acoustic signal processing apparatus (mixer) according to the present invention displays a setting of a parameter (channel group setting parameter) by use of a plurality of light-emitting display elements (LED) La through Lc. While the acoustic signal processing apparatus is under operating conditions with a setting of the parameter being established through a setting operation of an operator (on-switch) Bt, the display elements La through Lc in the entire parameter-establishable range are kept in display action. The parameter display portion is controlled such that, during the display action, the display element [(2)=La, (3)=Lb, (4)=Lc] corresponding to the established setting is displayed in the first display mode, while the other display elements [(2)=Lb and Lc, (3)=La and Lc, (4)=La and Lb] excluded from the established setting being displayed in the second display mode.

Abstract: A graphical user interface (GUI) and control system for marine seismic data acquisition is described along with a method of real-time quality control of the seismic survey. The control system includes real-time data processing of individual source near-field measured signals and concurrent synthesis of array far-field signatures. The control system determines individual source out-of-specification conditions and computes far-field signatures based on an array configuration excluding the failed source. Source, array, and troubleshooting information are presented to a user in real-time over a GUI monitor to allow informed decision-making regarding continued and/or modified survey operations and operational parameters.

Abstract: A method for analyzing and classifying the morphology of seismic objects extracted from a 3D seismic data volume. Any technique may be used to extract the seismic objects from the 3D seismic data volume. According to the inventive method, one or more morphologic parameters are selected for use in classifying the morphology of the selected seismic objects. Geometric analyses are then performed on each seismic object to determine geometric statistics corresponding to the selected morphologic parameters. The results of these geometric analyses are used to classify the morphology of the seismic objects according to the selected morphologic parameters.

Abstract: In a three-dimensional exploring method for finding location of a buried object by transmitting a wave signal (4) by means of e.g.

Abstract: While successively varying its orientation at specific intervals, a detecting apparatus transmits pulsed radio waves from an antenna (1), and data corresponding to input levels derived from one sweep are written in a primary memory (4). output values obtained in preceding signal processing operation are written in a secondary memory (9). A signal comparator circuit (7) determines current output values based on the input levels of the primary memory (4) and the preceding output values of the secondary memory (9) by reference to a table (8) and writes the current output values thus obtained in the secondary memory (9). The detecting apparatus causes display brilliance or color between a blip exhibiting large fluctuation in received signal strength and a blip exhibiting small fluctuation in received signal strength.

Abstract: A method for creating an image of an underground formation around a borehole. An omnidirectional seismic source is activated in the borehole and a three-component receiver records the components of the reflected energy from the formation. The direction or ray of the returned energy is computed as a function of the two-way travel time A position in the formation is selected as a potential formation reflection point compared with the directional ray and two-way travel time. Where the directional ray and two-way travel time substantially correspond to the selected point, the data is attributed to the selected point The process continues with the selection of additional points and calculation of attributed return energy direction and two-way travel time to such points to comprise a set of reflectors which form the image of the formation.

Abstract: Disclosed is a downhole video system that is suitable for use with a standard wireline transmission line, without the need for coaxial or fiber optic cable. A downhole video camera transmits a digitized video signal that may be multiplexed with orientation, sound, and other telemetry data. At the surface, an enhanced video is displayed simultaneously with processed sound to give an operator a better understanding of the conditions downhole. In addition, multiple modes are provided, including a “burst” mode to provide high resolution, full motion video, thereby circumventing the severe bandwidth limitations of standard electrical transmission lines.

Abstract: Methods are provided for automatic detection of linear seismic events and the detected events are used in correction of statics and geometry error.

Abstract: The general object of the present invention is to provide a method for determining and displaying the relative changes of elastic moduli and that of density of geologic formations and for utilizing these relative changes and plottings for gas/oil exploration, especially for direct gas and light oil detection. The said relative changes of elastic moduli are the relative change of Lame constant .DELTA..lambda./(.lambda.+2.mu.), the relative change of shear modulus .DELTA..mu./(.lambda.+2.mu.) and/or .DELTA..mu./[.kappa.+(4/3).mu.], the relative change of bulk modulus .DELTA..kappa./[.kappa.+(4/3).mu.]; and the relative change of density is .DELTA..rho./.rho..