Methods and systems for seismic data acquisition in a survey area use compressed sensing and take into consideration operational limitations. The operational limitations may be related to the equipment used for the survey, the topography of the surveyed area or limitations that otherwise optimize the survey path.

The invention discloses a landslide deep displacement remote visual monitoring system, comprising monitoring system and transmitting system, the monitoring system comprises displacement sensor, the displacement sensor is arranged on chassis, anchor eyes are provided on the chassis, wire embedding hole is arranged at centroid of the chassis, multiple bracing wires are provided in the wire embedding hole, the transmitting system comprises a data acquisition unit, the data acquisition unit is arranged on the displacement sensor for collecting data thereof, the data acquisition unit is connected to a network transmission module, the network transmission module is connected to a data receiving module through the network, the data receiving module is also provided with network transmission module, the data receiving module is connected to computer, the computer displays the data through display screen.

The present disclosure provides a method and a device for imaging diffracted waves based on azimuth-dip angle gathers and a storage medium, which relates to the technical field of seismic exploration, comprising firstly acquiring seismic data and generating target azimuth-dip angle gathers based on the seismic data, wherein the target azimuth-dip angle gathers are a set of all azimuth-dip angle gathers in which the Fresnel zones have been muted, and each of the azimuth-dip angle gathers represents a dip-angle gather corresponding to each azimuth angle; then detecting diffracted waves based on the target azimuth-dip angle gathers, and determining the type of the diffracted waves; and finally, imaging the diffracted waves based on the type of the diffracted waves to obtain a diffracted wave imaging result.

A method may include determining a portion of a microscale fracture using a well log acquired for a stratigraphic interval of interest. The method may further include obtaining seismic data for the stratigraphic interval of interest. The method may further include determining a seismic attribute that correlates the microscale fracture to a subset of the seismic data. The method may further include generating an attribute volume using the seismic attribute with a seismic volume for a region of interest. The method may further include generating, using the attribute volume, a fracture image of the microscale fracture throughout the region of interest.

Seismic exploration of an underground formation uses seismic excitations to probe the formation's properties such as reflectivity that can be imaged using reverse time migration. Using an equal area spherical binning at reflection points improves and simplifies RTM imaging together with adaptability to the data acquisition geometry, while overcoming drawbacks of conventional cylindrical binning.

The present invention disclosure is directed to a method, seismic sensor and system for wireless seismic networking. The system may comprise a low-power wide-area network (LPWAN) including wireless seismic sensors, the LPWAN being established for wireless transmission of data from the wireless seismic sensors.

The present disclosure describes methods and systems for interpreting geological features in a seismic volume based on mono-frequency filtering of the seismic volume. One computer-implemented method includes receiving a seismic data volume, decomposing the seismic data volume into multiple sub-volumes, generating one or more seismic horizons on each sub-volume, analyzing the generated seismic horizons for the multiple sub-volumes including determining a first sub-volume and a second sub-volume from the multiple sub-volumes, and subtracting the generated one or more seismic horizons for the first sub-volume from the generated one or more seismic horizons for the second sub-volume.

Systems and methods for evaluating simulation models are disclosed. In one embodiment, a method of evaluating a simulation model of a hydrocarbon field includes merging simulated reservoir data and actual reservoir data to generate merged reservoir data, and cross-linking the merged reservoir data with three-dimensional model data. The method further includes calculating one or more surface metrics from at least one of the merged reservoir data and the three-dimensional model data, calculating one or more subsurface metrics from at least one of the merged reservoir data and the three-dimensional model data, and calculating one or more overall history match indicators, one or more surface history match indicators, and one or more subsurface history match indicators from the one or more surface metrics, the one or more subsurface metrics, and the three-dimensional model data.

In order to monitor the subsoil of the earth under a target zone, seismic waves coming from an identified mobile noise source are recorded by means of at least one pair of sensors disposed on either side of the target zone, time periods are selected corresponding to the alignments of the pairs of sensors with the noise source, a seismogram of the target zone is reconstructed by interferometry based on the recorded seismic waves and on the selected time periods and an image of the subsoil of the target zone is generated using the seismogram.

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.