Entries |
Document | Title | Date |
20080285379 | APPARATUS AND METHOD FOR COLLECTING GEOPHYSICAL INFORMATION - An apparatus for collecting geophysical information may include a geophysical information station disposed along a seismic communication cable. A bypass circuit responsive to a command signal is in communication with a switching circuit that is operable to route electrical power, commands, data or a combination to bypass the geophysical information station in response to the command signal. An exemplary method for bypassing a geophysical information station in a geophysical information collection system includes sending a command signal to a bypass circuit and activating one or more switching circuits using the bypass circuit to route electrical power, commands, data or a combination to bypass the geophysical information station in response to the command signal. | 11-20-2008 |
20090040870 | Attenuating a Surface Seismic Wave - To attenuate a surface seismic wave, seismic sensors having a predetermined orientation with respect to a surface are provided, where the seismic sensors receive seismic waves including a seismic wave reflected from a subterranean structure and the surface seismic wave propagating in at least a first direction that is generally parallel to the surface. A signal that represents a partial derivative of a wavefield containing the surface seismic wave is provided, and the signal is integrated to obtain a response in which the surface seismic wave is attenuated. | 02-12-2009 |
20090092002 | ACOUSTIC COMMUNICATION AND CONTROL FOR SEISMIC SENSORS - A method for wireless communication in a seismic sensor network is disclosed. The method comprises providing a first acoustic device having at least one seismic sensor with communication and control data to communicate over an acoustic energy wave on a first communications channel. The first acoustic device generates the acoustic energy wave with a first wave intensity. The first acoustic device is configured to receive a reflection of the generated wave at a prescribed signal sensitivity level based on a network configuration. If the first wave intensity is below the prescribed signal sensitivity level, the first wave intensity of the acoustic energy wave is tuned to the prescribed signal sensitivity level to interpret the communication and control data provided by the first communications channel. | 04-09-2009 |
20090245018 | COMBINED PROBE AND CORRESPONDING SEISMIC MODULE FOR THE MEASUREMENT OF STATIC AND DYNAMIC PROPERTIES OF THE SOIL - A combined probe includes a dilatometer probe, a gas conduit coupled to the dilatometer probe for providing a gas connection between the dilatometer probe and an external gas source, a wire located in the gas conduit for providing an electrical connection between the dilatometer probe and an external circuit, and a seismic module coupled to the wire located in the gas conduit to provide an electrical connection between the seismic module and the external circuit. | 10-01-2009 |
20090279384 | Control Methods for Distributed Nodes - A method of controlling distributed devices includes configuring the devices to respond to a controlled signal; positioning the devices in an area of interest; and transmitting the controlled signal into the earth. The earth acts as the signal transmission medium. The method may include controlling a signal generator with a controller to transmit the controlled signal. An illustrative controlled signal may have a fixed frequency, a fixed amplitude, a fixed wave form, a modulated frequency, a modulated amplitude, a modulated wave form, and/or a predetermined duration. In aspects, the method may include connecting the signal generator to the earth and transmitting the controlled signal into the earth using the signal generator. Afterwards, the signal generator may be operated to impart seismic energy into the earth. The devices may be used to detect and record seismic energy that has reflected from underground formations. | 11-12-2009 |
20100284246 | SEISMOGRAPHY SYSTEM - The present invention provides a method and apparatus for providing simplified seismological surveys with increased accuracy and ease of use. The present invention uses data received from satellite positioning systems to obtain time and position information. The information is used to determine transmission times of pressure waves between a seismic source and a seismic sensor. | 11-11-2010 |
20100309747 | SYNCHRONOUS RECORDING SYSTEM AND SYNCHRONOUS RECORDING METHOD - A synchronous recording system is configured with a first seismograph and a second seismograph. The first seismograph includes a sensor, a GPS receiver, a data buffer, and a synchronous information transmission program that transmits synchronous information to the second seismograph, the information designating recording start time. The second seismograph includes a sensor, a GPS receiver, a data buffer, a recorder, a synchronous information reception program that receives the synchronous information, and a recording control program that starts, based on the synchronous information, recording in the recorder of oscillation data, which is recorded in the data buffer, from the designated recording start time. | 12-09-2010 |
20110158041 | Random Sampling for Geophysical Acquisitions - The presently disclosed technique includes a method for geophysical survey having at least one source and one receiver, wherein the survey has two sets of survey locations within the survey area, one set of survey locations for the source(s) and the other set of survey locations for the receiver(s), wherein the survey locations in one set are randomized. | 06-30-2011 |
20110242934 | PASSIVE SEISMIC DATA ACQUISITION AND PROCESSING USING MULTI-LEVEL SENSOR ARRAYS - A method for passive seismic surveying includes deploying seismic sensors in a plurality of spatially distributed wellbores disposed above a volume of subsurface formations to be evaluated. The sensors in each wellbore form a line of sensors. Each sensor generate optical or electrical signals in response to seismic amplitude. The seismic signals from each sensor are recorded for a selected period of time. The response of the seismic sensor recordings is beam steered to at least one of a selected point and a selected volume in the subsurface. At least one microseismic event is identified in the beam steered response. | 10-06-2011 |
20110261645 | Non Explosive Process and Device for Triggering an Avalanche - The invention comprises a synergy of technology integrations including an acoustic device and method of using said device(s)—to initiate avalanche release as a non-explosive control alternative. The invention is an integration of technologies incorporating an acoustic device, power supply and amplification, inverter, digital signal processor, GPS, and RF receiver all housed in a rugged weather resistant enclosure with necessary gantry and rigging. The combination of these technologies allows control personnel to safely operate the equipment from a remote location. The invention is deployed remotely via a cable or network of cables to predetermined avalanche starting zone(s). The device can be rotated, panned the full length or range of the cable(s), and tilted offering the user comprehensive coverage of any topography. The invention can readily be integrated with equipment and infrastructures already in use such as bomb trams, cable and pylon networks, helicopters, chairlifts, and sensing and notification systems. | 10-27-2011 |
20110305105 | CONTROLLING SEISMIC SOURCES IN CONNECTION WITH A SEISMIC SURVEY - A technique includes receiving requests from mobile seismic sources and organizing the requests in a queue. The seismic sources are associated with respective paths of a survey plan, and each request indicates that one of the seismic sources is ready for an action to be performed by the seismic source. The technique includes regulating an ordering associated with the requests based on survey parameters and responding to the requests according to the ordering. | 12-15-2011 |
20120250455 | SELECTING A SURVEY SETTING FOR CHARACTERIZING A TARGET STRUCTURE - Complex-valued sensitivity data structures corresponding to respective candidate survey settings are provided, where the sensitivity data structures relate measurement data associated with a target structure to at least one parameter of a model of the target structure. Based on the sensitivity data structures, a subset of the candidate survey settings is selected according to a criterion for enhancing resolution in characterizing the target structure. | 10-04-2012 |
20120269032 | Magnetic Mass-Lift Impulsive Seismic Energy Source Including Attracting and Repulsing Electromagnets - A seismic energy source includes a base plate and a block fixedly coupled in a frame. The base plate is configured for contact with a part of the Earth's subsurface to be seismically energized. The frame has a first electromagnet associated therewith. A second electromagnet is disposed in a travelling reaction mass, which is movably disposed in the frame between the first electromagnet assembly and the top block. The reaction mass includes at least a third electromagnet associated therewith. The source has circuits for selectively energizing the first, second and at least a third electromagnets, and which are configured to energize the first and second electromagnets to repel each other such that the traveling reaction mass is lifted from the first electromagnet, and configured to energize the at least a third electromagnet after a selected delay time to cause attraction between the traveling reaction mass and the top block | 10-25-2012 |
20130176817 | DATA ACQUISITION SYSTEM WITH REMOVABLE BATTERY HAVING INTEGRATED DATA STORAGE - Data acquisition modules and systems including batteries with integrated data storage. The battery with integrated data storage can be selectively removed from the data acquisition module. This allows for reduced logistical effort associated with data retrieval and battery charging. For instance, the entire data acquisition module need not be transported to a central location for data recovery and charging, but rather the removable battery with integrated storage may be removed and transported. Also facilitated is extended surveys in that the battery or storage module may be replaced, such that survey design limitations such as storage capacity or battery life may be eliminated. | 07-11-2013 |
20130188447 | ANALOG IN POWER SUPPLY MODULE - The present disclosure relates methods and apparatus conducting a seismic survey. The apparatus includes an analog interface and power supply both disposed in a housing. The analog interface is configured to receive analog seismic data from a seismic sensor. The apparatus includes one or more of: (i) an isolation transformer disposed between the power supply and the analog interface and (ii) a analog interface clock configured to synchronized with a power supply clock. The method may include reducing power transmission losses and/or the effect of power supply noise on the seismic signals. | 07-25-2013 |
20130201788 | METHOD OF SEISMIC SOURCE INDEPENDENT OPERATION - A method of controlling seismic data acquisition may include sending a first message to place a plurality of energy sources into an operating mode; sending a second message to place at least one of plurality of energy sources into a non-operating mode; and sending a third message from at least one energy source to a controller. | 08-08-2013 |
20130201789 | METHOD OF SEISMIC VIBRATORY LIMITS CONTROL AT LOW FREQUENCIES - A method of performing a seismic sweep determining a user-defined force at a frequency using user defined inputs; determining a maximum force at the frequency using sweep parameters; and using the maximum force to drive a seismic source if the user-defined force is greater than the maximum force. | 08-08-2013 |
20130208563 | METHOD OF SEISMIC SOURCE SYNCHRONIZATION - A method of controlling seismic data acquisition includes synchronizing a sampling rate of at least one node configured to acquire seismic data with a GPS timing signal from a first GPS seismic device; and delaying sending a start signal to one or more seismic sources, the delay being with reference to a GPS timing signal from a second GPS device. | 08-15-2013 |
20130286771 | ALTERNATIVE VIBRATOR ACTUATOR SOURCE - The invention is an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power to drive a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion. Preferably, a foot is arranged on the bottom end of the rod or piston for contact with the ground and by engaging the grid of motors to push down against the ground in a rapid progression, acoustic energy is created and delivered into the ground for geophones to sense and record. | 10-31-2013 |
20140036621 | DETECTING AND QUANTIFYING HYDROCARBON VOLUMES IN SUB-SEISMIC SANDS IN THE PRESENCE OF ANISOTROPY - A method to detect presence of hydrocarbons in a subterranean formation. The method includes identifying a geological interval in the subterranean formation, analyzing a measurement of a rock sample obtained from the geological interval to generate a rock sample analysis result, wherein the rock sample analysis result indicates the presence of hydrocarbons in the geologic interval, analyzing, in response to the rock sample analysis result indicating the presence of hydrocarbons, a supplemental measurement different than the measurement of the rock sample to generate a supplemental analysis result, wherein the supplemental analysis result further indicates the presence of hydrocarbons in the geologic interval, performing, in response to the supplemental analysis result further indicating the presence of hydrocarbons, a logging operation to obtain azimuthal resistivity data of the geological interval, and presenting the rock sample analysis result, the supplemental analysis result, and the azimuthal resistivity data to a user. | 02-06-2014 |
20140043935 | HYPERBOLIC SHOOTING METHOD AND DEVICE - During a seismic survey, shots located close to one another are fired at a time interval shorter than an echo time interval and longer than a closest receiver time interval. During the echo time interval which follows a first shot, receivers located within a predetermined distance from the first shot location detect seismic reflections related to the first shot. During the closest-receiver time interval which follows the first shot, at least one seismic receiver located closest to the first shot location detects all the reflections from the first shot reaching this seismic receiver. | 02-13-2014 |
20140092707 | Operational Mode Switching in Seismic Data Acquisition Module via Supply Voltage Polarization - Described herein are various embodiments of methods and corresponding hardware and software that are configured to permit a seismic data acquisition module to switch between a data acquisition operational mode and a USB data downloading mode according to the sensed polarity of an external power supply that is connected to the module. | 04-03-2014 |
20140098631 | Coupling Device for Seismic Sensors - A coupling device is provided for a sensor unit having at least one sensor located within a housing. The coupling device includes at least one supporting portion, wherein the supporting portion is configured for maintaining the sensor unit in a stable position, with the coupling device either resting on or being buried into the ground, and at least one rod, arranged in a plane which is essentially perpendicular to a peripheral surface of the supporting portion and linked to the supporting portion. The coupling device further includes a fastener for connecting the sensor unit to the coupling device. The supporting portion maintains the sensor unit in a stable position when resting on the ground, while the rod provides an additional stiffness to the housing. | 04-10-2014 |
20140104980 | VIRTUAL ELECTRODE CURRENT INJECTION USING SEISMIC FOCUSING AND SEISMOELECTRIC CONVERSION - The present invention relates to acoustic wavefields produced using sources appropriately delayed in time and focused at known positions and times in a heterogeneous medium. Seismoelectric conversion occurs if the acoustic focus point coincides with a discontinuity in electrical and hydrological medium properties, thus generating a current density. The current generates a potential difference, which can be observed at a distance by an array of monitoring electrodes. Since the acoustic wavefield is precisely located at a position and time, this electrical source behaves like a controlled virtual electrode whose properties depend on the strength of the acoustic wavefield and on the medium properties. This procedure can be used to increase the robustness and resolutions of electrical resistivity tomography and to identify hydrological parameters at various points in the medium by scanning the medium by changing the position of the acoustic focus. | 04-17-2014 |
20140119158 | VOLTAGE LEAKAGE DETECTION FOR SERIALLY CONNECTED ELECTRICAL NODES IN A SEISMIC SURVEYING SYSTEM - A seismic survey apparatus includes a plurality of serially connected electrical nodes; a power supply capable of supplying power to the electrical nodes and detecting a voltage leakage among the electrical nodes; and a software component capable of locating the leakage upon its detection. A method for use in seismic surveying includes powering a plurality of serially connected electrical nodes in a seismic surveying system; automatically detecting a voltage leakage among the electrical nodes on the power domain; and automatically locating the detected voltage leakage. | 05-01-2014 |
20140140168 | SEISMIC SURVEY METHOD - Method of performing a 3-D seismic survey using a plurality of vibroseis sources, and an array of seismic sensors arranged within a survey area. Each vibroseis source emits a distinctive acoustic signal and each seismic sensor of the array is in a continuous state of readiness to detect reflected acoustic signals. The method includes assigning vibroseis points (VPs) to each vibroseis source, moving each vibroseis source to assigned VPs where the vibroseis source emits an acoustic signal, recording the emission time of the acoustic signal by each vibroseis source at its assigned VPs together with the geographic position of the assigned VPs, continuously listening for reflected acoustic signals using the seismic sensors and recording a time domain record of the reflected acoustic signals received by each seismic sensor. Reflected acoustic signals associated with emission of an acoustic signal by a vibroseis source at an assigned VP are then determined. | 05-22-2014 |
20140204703 | Acquisition Device Provided with Means for Detecting a Disconnection of a Set of at Least One Analog Seismic Sensor - An acquisition device includes a pair of input terminals for connection to an analog seismic sensor generating a seismic signal. The device includes a detector for detecting a disconnection of the sensor, which includes a current source for injecting a low current in the sensor to generate an offset signal which depends on electrical resistance of the sensor and is added to the seismic signal. The offset signal encroaches on only a part of an operating range of the acquisition device. The voltage measured at the input terminals is applied to an analog-digital converter and a filter to obtain a measured value of the offset signal. A processing unit either analyzes a temporal variation of the measured value and triggers an alarm if a determined condition is satisfied, or transmits the measured value to a remote device adapted to analyse the temporal variation. | 07-24-2014 |
20140204704 | SYSTEMS AND METHODS FOR IMPROVING BANDWIDTH OF WIRELESS NETWORKS - Systems and methods for seismic data acquisition with location aware network nodes. Based on location information of the nodes of the network, a multiplexing signature may be provided for the node. The location information may be used in conjunction with other information (e.g., location information of other nodes in the network and transmission ranges for nodes in the network) to determine collision domains. A multiplexing signature may be assigned to a node based on information regarding a collision domain to which the node belongs. As such, the assigned multiplexing signature may be used to avoid data collisions. | 07-24-2014 |
20140241116 | VIBRATOR SOURCE ARRAY LOAD-BALANCING METHOD AND SYSTEM - Method and controller for finding a best distribution of source elements that form a vibratory source array. The method includes inputting plural constraints for the source elements; generating plural distributions of the source elements that fulfill the plural constraints; calculating for each distribution a first attribute characterizing the source array; and selecting the best distribution from the plural distributions based on a value of the first attribute. | 08-28-2014 |
20140254308 | IDENTIFYING REFLECTION ACOUSTIC SIGNALS - Various implementations described herein are directed to identifying reflected acoustic signals. In one implementation, a method may include receiving initial positions of an acoustic positioning source and an acoustic positioning receiver of an acoustic positioning system in a seismic spread. The method may also include calculating an expected travel difference between the acoustic positioning source and the acoustic positioning receiver. The method may further include receiving an acoustic positioning signal from the acoustic positioning receiver. The method may additionally include calculating an actual travel difference between the acoustic positioning source and the acoustic positioning receiver based on the acoustic positioning signal. The method may further include comparing the actual travel difference to the expected travel difference. The method may also include identifying whether the acoustic positioning signal is a reflected positioning signal based on the comparison. | 09-11-2014 |
20140254309 | DIGITAL SEISMIC RECORDER INCLUDING WIRED, WIRELESS AND CABLE-LESS TELEMETRY - A digital seismic recorder including wired, wireless and cable-less telemetry, which is optimized and combined from three types of instrument: a wired telemetry digital seismic recorder, a wireless telemetry digital seismic recorder and a cable-less digital seismic recorder, is divided into four main parts: a central control operating system (CCOS), a wired telemetering Acquisition Station (AS), a Wireless telemetering Acquisition Station (WAS) and a Cable-less Acquisition Station (CAS). The CCOS is respectively connected to a wired communication Root Unit (RU), a Wireless communication Root Unit (WRU) and a Cable-less Data Unit (CDU), and controls and connects the AS via the RU, controls and connects the WAS via the WRU, and retrieves the data of the CAS via the CDU. The digital seismic recorder including wired, wireless and cable-less telemetry makes the best advantages of wired telemetry, wireless telemetry and cable-less operation, and can be applied to various complex earth surfaces and landforms, providing an optimal solution for seismic exploration and reducing cost of operation. | 09-11-2014 |
20140269167 | CONFIGURABLE SOURCE ENCODERS FOR SEISMIC SYSTEMS - A system for acquiring seismic information may include a seismic spread in signal communication with a central controller having a central recording system, a source encoder in signal communication with the seismic spread, and a source decoder in wireless signal communication with the source encoder. The source decoder and the encoder are each selectively responsive to a control signal and can be selectively configured to transmit the control signal. | 09-18-2014 |
20140293741 | SEISMIC RECEIVERS AS SEISMIC SOURCES - Seismic surveying techniques are described in which seismic receivers in a seismic array are used as seismic sources. These receiver-sources may be used to determine the near-surface structures of the Earth, geometric properties of the survey array, receiver locations and operations of the survey array. The receiver-sources may be driven by drive sequences to produce amplified receiver-source signals, plane waves, surface waves converging towards a point inside the seismic array, surface waves sweeping through the seismic array and/or the like. The receiver-sources may comprise geophones, hydrophones, accelerometers and/or the like. A driver may be used to drive the receiver-sources and the driver may be controlled by a processor. By encoding drive sequences, seismic data generated by the receiver-sources may be separated from seismic data generated by another seismic source in the seismic array. Similarly, seismic data can be separated by controlling the frequency of seismic signals produced by the receiver-sources. | 10-02-2014 |
20140334253 | Seismic Monitoring - The application describes methods and apparatus for seismic monitoring using fibre optic distributed acoustic sensing (DAS). The method involves interrogating a first optical fibre ( | 11-13-2014 |
20140362659 | BLENDED LAND SEISMIC DATA ACQUISITION EMPLOYING DISPERSED SOURCE ARRAYS WITH VARIABLE SWEEP LENGTH - An array of seismic energy receivers is deployed at fixed locations across the length and width of a land surface area of interest. A land fleet composed of a number of vibratory swept frequency or vibroseis seismic energy sources is deployed at predetermined initial locations within the receiver array. The sources are arranged in groups which at their initial locations are spaced from other groups of the source fleet by an intergroup spacing distance representing a segment of the receiver array. Each of the vibratory sources in a source group is assigned within that group a designated specific length for its energy emissions and a frequency sweep band different from the other sources in the group. The sources in all groups concurrently emit energy at a succession of spaced, assigned locations as they are moved incrementally over their respective intergroup spacings. The responses of subsurface formations to the emissions from the sources are recorded as a blended seismic record by the fixed array of processors and made available for processing. | 12-11-2014 |
20150085604 | APPARATUS, SYSTEM, AND METHOD FOR REAL-TIME SEISMIC DATA ACQUISITION MANAGEMENT - Implementations described and claimed herein provide apparatuses, systems, and methods for real-time seismic data acquisition management. In one implementation, seismic data captured using one or more monitoring devices at a remote seismic exploration project site is received. A seismic field record is detected in the captured seismic data automatically using at least one processor, and a network connection with a cloud storage array is established. The detected seismic field record is automatically sent to the cloud computing array over the network connection. | 03-26-2015 |
20150092516 | DETERMINING THE POSITION OF SEISMIC EQUIPMENT USING PINGERS - A method for transmitting acoustic signals from pingers. The method includes transmitting acoustic signals from a first group of pingers within a seismic spread. The method includes transmitting acoustic signals from a second group of pingers within the seismic spread after a predetermined amount of time has passed, wherein the signals from the first group and the second group are emitted between two seismic shots. The first group of pingers and the second group of pingers are mutually exclusive. | 04-02-2015 |
20150109882 | ATTENTUATING NOISE ACQUIRED IN AN ENERGY MEASUREMENT - A technique includes receiving sensor data; sorting the data into a gather representation that corresponds to a plurality of shots of an energy source; and determining a signal cone based at least in part on at least one characteristic of the gather representation. The technique includes processing the sensor data in a processor-based machine to attenuate noise to generate data representing a signal based at least in part on the determined signal cone and the gather representation. | 04-23-2015 |
20150124560 | COMPRESSIVE SENSING - Computer-implemented method for determining optimal sampling grid during seismic data reconstruction includes: a) constructing an optimization model, via a computing processor, given by min | 05-07-2015 |
20150124561 | Sound Velocity Profile Streamlining and Optimization Method Based on Maximum Offset of Velocity - The invention discloses a sound velocity profile (SVP) streamlining and optimization method based on maximum offset of velocity, and provides detailed comprehensive technical process so as to solve the problem that the work efficiency of multi-beam detection and data processing are seriously influenced because the original sound velocity profile has a large data quantity. An MOV method is provided and is used for deleting the redundant points automatically and quickly, and for evaluating the influence of the streamlined sound velocity profile on precision of multi-beam sounding through ray tracing and error analysis. The method has an important actual application value in the aspects of marine surveying and charting, multi-beam surveying, a marine geographic information system, computer graphics, submarine science research and the like, and can be popularized. | 05-07-2015 |
20150138917 | SEISMIC SURVEY SHOT COORDINATION APPARATUS METHOD AND SYSTEM - A method for controlling impulsive sources during a geophysical survey includes receiving a set of predetermined shooting times for an impulsive source, receiving a detonation authorization for the impulsive source, and delaying a triggering of the impulsive source until a next available shooting time of the plurality of predetermined shooting times. A corresponding apparatus and system are also disclosed herein. | 05-21-2015 |
20150138918 | SEISMIC SURVEY SHOT COORDINATION APPARATUS METHOD AND SYSTEM - A system for controlling impulsive sources during a geophysical survey includes a triggering unit that interfaces to an impulsive source and provides an estimated current location for the impulsive source and a shot controller configured to transmit a detonation authorization to the triggering unit. The shot controller or the triggering unit may inhibit detonation of an impulsive source connected to the selected triggering unit if an estimated current location of the impulsive source is substantially different than an intended shot location. A corresponding apparatus and method are also disclosed herein. | 05-21-2015 |
20150293242 | SEISMIC DATA PROCESSING - A method for seismic data processing can include obtaining seismic data acquired based upon trigger times and not based upon positions of triggered source elements. The seismic data can include near-continuously recorded seismic data in split records. The split records can be spliced together into a single near-continuous record to produce a trace with seismic data from a single acquired line. The seismic data can be processed by performing a spatial shift for each of a number of time samples to correct for motion of a number of seismic receivers. | 10-15-2015 |
20150338535 | SYSTEMS FOR ACQUIRING AND PROCESSING SEISMIC DATA - Systems and methods may be provided for setting up a geophysical seismic information-gathering grid utilizing a source pattern including but not limited to a “slant” or “diamond” source as well as a receiver pattern using base patterns including but not limited to “I+H” or “H+I” and “box plus.” Use of such base patterns may allow seismic data to be collected and processed using a reduced number of sources and receivers to provide a seismic imaging plot having increased and noticeably improved resolution than is presently available. | 11-26-2015 |
20160011324 | Method For Harvesting Seismic Data And Generating Seismic Output Files | 01-14-2016 |
20160018543 | QUALITY CHECK OF COMPRESSED DATA SAMPLING INTERPOLATION FOR SEISMIC INFORMATION - Computing systems, methods, and computer-readable media for improving data quality are disclosed. In some embodiments, a method of quality checking seismic interpolation data is provided, where the method includes obtaining first measured seismic data acquired by a first plurality of seismic sensors; obtaining second measured seismic data acquired by a second plurality of seismic sensors; interpolating, from the first measured seismic data, respective seismic data values at locations corresponding to respective sensors in the second plurality of seismic sensors; calculating a plurality of interpolation differences, where respective interpolation differences are calculated as numerical differences between respective interpolated seismic data values corresponding to respective sensor locations in the second plurality of sensors and respective measured seismic data values corresponding to respective sensors in the first plurality of sensors; and calculating an average interpolation difference using at least the plurality of interpolation differences. | 01-21-2016 |
20160061972 | DATA ACQUISITION APPARATUS USING ONE SINGLE LOCAL CLOCK - A seismic node, in a seismic data acquisition system, includes a housing having an input receiving analog seismic data and an output supplying corrected series of digital sampled and dated seismic data; a single local clock located inside the housing and configured to generate an inaccurate local clock signal (CLK); a gauging circuit configured to measure a frequency drift and a phase error of the local clock signal (CLK) based on received synchronization information; an analog-to-digital converter located inside the housing and configured to process the analog seismic signal based on the local clock signal (CLK) and to provide a series of digital sampled and dated seismic data; and a correcting circuit for generating the corrected series of digital sampled and dated seismic data based at least on the measured frequency drift and phase error of the local clock signal (CLK). | 03-03-2016 |
20160070010 | SYSTEM AND METHODS FOR REMOTE MONITORING - A system that detects signals and transmits data regarding certain detected signals for further analysis is disclosed. The detected signals may be analyzed to determine whether any of the detected signals correspond to a source. The system may transfer in near-real time data and information regarding the data to one or more client devices. Methods for detecting signals and transmitting data associated with the detected signals are also disclosed. | 03-10-2016 |
20160070011 | SEPARATING SURVEY DATA FOR A PLURALITY OF SURVEY SOURCES - Separating survey data for multiple survey sources where first survey data along a first axis measured by a survey sensor device is received, the first survey data responsive to activations of the plurality of survey sources at respective azimuths with respect to the survey sensor device. Second survey data is rotated towards a first azimuth of a first of the plurality of survey sources. The rotated second survey data is used as a model of interference caused by a subset of the plurality of survey sources excluding the first survey source. In other examples, a time dithering technique is performed to separate survey data for multiple survey sources. | 03-10-2016 |
20160139284 | MARINE SEISMIC PATTERNS FOR COORDINATED TURNING OF TOWING VESSELS AND METHODS THEREFOR - Methods for performing marine seismic surveys are disclosed. Survey lines can be traversed and the survey vessels can be turned by following determined turn paths which are based on a number of factors including, whether they are source or streamer vessels, the length of towed equipment, a turn radius, and/or other factors. Such methods can be applied using various seismic survey vessel configurations, e.g., a long-offset, diagonally-staggered configuration. | 05-19-2016 |
20160161620 | SYSTEM AND METHOD FOR ESTIMATING REPEATABILITY USING BASE DATA - In accordance with some embodiments of the present disclosure, systems and methods for estimating repeatability using base data are disclosed. The method includes obtaining data corresponding to a survey of an exploration area, where the data includes a plurality of traces associated with the exploration area, and an acquisition metric associated with each trace of the plurality of traces. The method also includes grouping the plurality of traces into a plurality of bins, the plurality of bins based on the acquisition metrics. The method further includes calculating an acquisition repeatability metric for each pair of traces in each bin based on the acquisition metrics, and calculating a seismic repeatability metric for each pair of traces in each bin. | 06-09-2016 |
20160178773 | CORRECTING TIME SHIFTS | 06-23-2016 |
20160187505 | Method of multi-triggering - A method of multi-triggering includes calculating a specific distance according to a plurality of parameters, deploying a plurality of earthquake detectors used for detecting a vertical acceleration of a surface vibration of the earth, and determining whether an earthquake happens or not according to the plurality of earthquake detectors. | 06-30-2016 |