Abstract: A brake system for a vehicle includes a first axle-pressure-modulator (APM) for service-brake-chambers associated with a first vehicle-axle, a second APM for spring-brake-cylinders associated with a second vehicle-axle, wherein the second APM is connected to an electronic-brake-control-unit configured to issue a first electric-control-signal for controlling the first APM and a second electric-control-signal for controlling the second APM, a further electronic-brake-control-unit configured to issue a further first electric-control-signal for controlling the first APM and a further second electric-control-signal for controlling the second APM, an electronic-parking-brake-controller configured to issue a second pneumatic-control-signal for controlling the spring-brake-cylinders, and a pressure-modulator-unit configured to convert a pneumatic signal or an electric signal issued by the electronic-parking-brake-controller into a first pneumatic-control-signal for controlling the first APM.

Abstract: An information transmission system for at least one commercial vehicle includes at least one information sending module, at least one repeating module and at least one receiving module. The information sending module is configured and arranged to send signals defining a message to the repeating module. The repeating module is configured and arranged to enhance the signals and forward the signals to the receiving module. A commercial vehicle and a commercial vehicle combination utilize the information transmission system.

Abstract: A method is described for predicting and preventing wellbore interactions at wells that are near the injection well. The method includes receiving fiber optics data; performing object detection by detecting object-like events in the fiber optic data; and sending instructions to a hydraulic fracturing system based on the object detection. The method is executed by a computer system.

Abstract: A method is described for predicting and preventing wellbore interactions at wells that are near the injection well. The method includes receiving fiber optics data; performing object detection by detecting object-like events in the fiber optic data; and sending instructions to a hydraulic fracturing system based on the object detection. The method is executed by a computer system.

Abstract: Embodiments of labeling an unlabeled dataset are provided. One embodiment comprises (a) obtaining a labeled dataset comprising a first plurality of data inputs and corresponding labels; (b) training a classification model using the labeled dataset; (c) obtaining the unlabeled dataset comprising a second plurality of data inputs without labels; (d) applying the classification model to the unlabeled dataset to generate a predicted label for each data input of the unlabeled dataset; (e) determining a verification quantity of the predicted labels to be verified by a user; (f) obtaining a verification dataset for the verification quantity of the predicted labels verified by the user; (g) updating the classification model using the verification dataset; and (h) applying the updated classification model to the remaining predicted labels that did not undergo verification and updating in response to the updated classification model. The verification dataset comprises an update to at least one predicted label.

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.

Abstract: A method of attenuating interbed multiples in multiply-reflected seismic waves is performed at a computer system, the method including: providing multiple beams of seismic data and an earth model related to a geological volume; selecting one of the beams as an input beam associated with a pair of source and detector located near a top surface of the geological volume; determining at least one of (i) a source-side stationary pegleg arrival and a corresponding detector-side primary beam and (ii) a detector-side stationary pegleg arrival and a corresponding source-side primary beam; predicting an interbed multiples beam using at least one of (i) the detector-side primary beam delayed by the source-side stationary pegleg arrival and (ii) the source-side primary beam delayed by the detector-side stationary pegleg arrival; and deconvolving the predicted interbed multiples beam with the input beam to remove at least a portion of interbed multiples present in the input beam.

Abstract: A finite difference wavefield modeling framework decouples the tasks of physical modeling and hardware-software optimization through the use of a platform-agnostic intermediate representation in the form of a dataflow graph. In at least some embodiments a wavefield simulation method includes specifying a kernel of operations to be applied at each point in a space and representing the kernel as a platform-agnostic dataflow graph. For each of multiple implementation platforms, the method further includes: deriving from the platform-agnostic graph a customized graph for the implementation platform; translating the customized graph into configuration information for the implementation platform; supplying the configuration information to the implementation platform to obtain a wavefield simulator; and employing the wavefield simulator to repeatedly apply said kernel of operations to each point in the space with specified input or output signals.

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.

Abstract: A system and method for processing seismic data on one or more co-processor devices that are operatively coupled to a host computing system via a communications channel. The compression of input data transmitted to the co-processor device and/or the size of the storage provided on the co-processor device may enhance the efficiency of the processing of the data on the peripheral device by obviating a bottleneck caused by the relatively slow transfer of data between the host computing system and the co-processor device or by the relatively slow transfer of data within the co-processor device between the co-processor information storage and the co-processor.

Abstract: A method is described that includes providing an earth model for a geologic medium having a tilted symmetry axis. The earth model includes a nonzero shear velocity in the direction of the symmetry axis for at least a subset of locations within the geologic medium. The method further includes processing seismic measurements using a set of pseudoacoustic equations applied and the earth model. The set of pseudoacoustic equations includes a first equation and a second equation describing the one or more seismic wavefields. The processing includes propagating the one or more seismic wavefields over a plurality of time-steps in accordance with the set of pseudoacoustic equations, determining whether a respective time-step of the plurality of time-steps meets predetermined criteria and, when the respective time-step meets the predetermined criteria, applying a set of constraints distinct from the earth model and the set of pseudoacoustic equations to adjust the one or more seismic wavefields.

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 pseudoacoustic equations. The set of energy-conservative pseudoacoustic equations describes one or more seismic wavefields and is derived from a set of energy non-conservative pseudoacoustic equations by approximating one or more derivative terms of the one or more seismic wavefields in the set of energy non-conservative pseudoacoustic equations.

Abstract: A finite difference wavefield modeling framework decouples the tasks of physical modeling and hardware-software optimization through the use of a platform-agnostic intermediate representation in the form of a dataflow graph. In at least some embodiments a wavefield simulation method includes specifying a kernel of operations to be applied at each point in a space and representing the kernel as a platform-agnostic dataflow graph. For each of multiple implementation platforms, the method further includes: deriving from the platform-agnostic graph a customized graph for the implementation platform; translating the customized graph into configuration information for the implementation platform; supplying the configuration information to the implementation platform to obtain a wavefield simulator; and employing the wavefield simulator to repeatedly apply said kernel of operations to each point in the space with specified input or output signals.

Abstract: A method of attenuating interbed multiples in multiply-reflected seismic waves is performed at a computer system, the method comprising: providing multiple beams of seismic data and an earth model related to a geological volume; selecting one of the beams as an input beam associated with a pair of source and detector located near a top surface of the geological volume; determining at least one of (i) a source-side stationary pegleg arrival and a corresponding detector-side primary beam and (ii) a detector-side stationary pegleg arrival and a corresponding source-side primary beam; predicting an interbed multiples beam using at least one of (i) the detector-side primary beam delayed by the source-side stationary pegleg arrival and (ii) the source-side primary beam delayed by the detector-side stationary pegleg arrival; and deconvolving the predicted interbed multiples beam with the input beam to remove at least a portion of interbed multiples present in the input beam.

Abstract: A system and method for processing seismic data on one or more co-processor devices that are operatively coupled to a host computing system via a communications channel. The compression of input data transmitted to the co-processor device and/or the size of the storage provided on the co-processor device may enhance the efficiency of the processing of the data on the peripheral device by obviating a bottleneck caused by the relatively slow transfer of data between the host computing system and the co-processor device or by the relatively slow transfer of data within the co-processor device between the co-processor information storage and the co-processor.

Abstract: A system and method for processing seismic data on one or more co-processor devices that are operatively coupled to a host computing system via a communications channel. The compression of input data transmitted to the co-processor device and/or the size of the storage provided on the co-processor device may enhance the efficiency of the processing of the data on the peripheral device by obviating a bottleneck caused by the relatively slow transfer of data between the host computing system and the co-processor device or by the relatively slow transfer of data within the co-processor device between the co-processor information storage and the co-processor.

Abstract: A method and corresponding system is provided for computation utilizing an earth model representation via a computing system having a first processor having access to an earth model dataset. The method includes compressing the earth model dataset at the first processor to generate a look-up table and a set of data indices (i.e., collectively a compressed earth model representation), wherein the look-up table includes quantized data values. By then storing the look-up table in a first level (“fast”) memory, and storing the indices in a second level (“slower,” higher memory capacity) memory, the look-up table and the indices can be accessed to selectively decompress the compressed earth model representation at the first processor such that the computation can be performed efficiently by the first processor.

Abstract: A method is performed at a FPGA coprocessor having memory that stores a plurality of blocks of compressed seismic traces. The method includes: receiving, from a host, a request for processing a predefined set of seismic traces, the request including block location and trace header information; accessing one or more of the blocks of compressed seismic traces from the memory in accordance with the block location information; decompressing each of the one or more accessed blocks into one or more seismic traces thereby forming a plurality of decompressed traces of seismic data; selecting all or a portion of the decompressed traces of seismic data in accordance with the trace header information; processing the selected decompressed traces of seismic data by applying one or more predefined operations to the seismic data; and returning the processed seismic data to the host.

Abstract: A system and method for processing seismic data on one or more co-processor devices that are operatively coupled to a host computing system via a communications channel. The compression of input data transmitted to the co-processor device and/or the size of the storage provided on the co-processor device may enhance the efficiency of the processing of the data on the peripheral device by obviating a bottleneck caused by the relatively slow transfer of data between the host computing system and the co-processor device or by the relatively slow transfer of data within the co-processor device between the co-processor information storage and the co-processor.

Abstract: A system and method for processing seismic data on one or more co-processor devices that are operatively coupled to a host computing system via a communications channel. The compression of input data transmitted to the co-processor device and/or the size of the storage provided on the co-processor device may enhance the efficiency of the processing of the data on the peripheral device by obviating a bottleneck caused by the relatively slow transfer of data between the host computing system and the co-processor device or by the relatively slow transfer of data within the co-processor device between the co-processor information storage and the co-processor.