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First-break automatic picking technology based on semantic segmentation

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

With the wide application of the high-density and high-productivity acquisition technology in the complex areas of oil fields, the first-break picking......

Working mechanism and experimental study of electromagnetic measurement while drilling systems based on a relay station

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (4)

Electromagnetic measurement while drilling systems transmit downhole data via an information channel composed of a drill string and formation; the for......

Analytical model for rock effective elastic properties with aligned elliptical cracks embedded in transversely isotropic background

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (7)

Seismic methods are often used for fracture detection and characterization, for which many analytical rock physics models have been developed to link ......

Observation and theoretical calibration of the fluid flow mechanism of artificial porous rocks with various size fractures

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

Fractures usually spread over various scales and strongly influence velocity and anisotropy. We investigate elastic velocity and anisotropy in rocks w......

Suppression of motion noise based on a linear-homomorphic filtering algorithm in airborne electromagnetic survey

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (5)

The movement of the receiver coil in a magnetic field produces motion noise in the airborne electromagnetic field. With an amplitude that is several o......

Seismic responses to an earthquake source in stratified transversely isotropic porous media

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

In this paper, we study seismic responses to an earthquake source in horizontally stratified transversely isotropic porous media with a vertical axis ......

Analysis of the frequency dependence characteristics of wave attenuation and velocity dispersion using a poroelastic model with mesoscopic and microscopic heterogeneities

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

Seismic waves passing through partially saturated porous rocks produce pressure gradients in the fluid phase, and, hence, the resulting fluid flow is ......

Semi-supervised deep autoencoder for seismic facies classification

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

Facies boundaries are critical for flow performance in a reservoir and are significant for lithofacies identification in well interpretation and reser......

Detection of hidden reservoirs under strong shielding based on bi-dimensional empirical mode decomposition and the Teager-Kaiser operator

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (5)

In this paper, we propose a method for revealing hidden reservoirs that are shielded by strong amplitudes. The bi-dimensional empirical mode decomposi......

Learning from unlabelled real seismic data: Fault detection based on transfer learning

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

Significant advances have been made towards fault detection using deep learning. However, the fault labelling of seismic data requires great human eff......

Diffraction separation by variational mode decomposition

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (5)

Diffracted wavefields with superior illumination encode key geologic information about small-scale geologic discontinuities or inhomogeneities in the ......

A joint imaging method of vertical seismic profiling data by generalized radon transform migration

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (5)

The images produced by conventional vertical seismic profile imaging methods often suffer from the problems of illumination limitation and uncompleted......

An artificial neural network approach for the inversion of surface wave dispersion curves

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (7)

We describe a new algorithm for the inversion of one-dimensional shear-wave velocity profiles from dispersion curves of the fundamental mode of Raylei......

Seismic noise attenuation by signal reconstruction: an unsupervised machine learning approach

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (5)

Random noise attenuation is an essential step in seismic data processing for improving seismic data quality and signal-to-noise ratio. We adopt an uns......

Using microseismic events to improve the accuracy of sensor orientation for downhole microseismic monitoring

期刊: GEOPHYSICAL PROSPECTING, 2021; 69 (6)

Event locations are essential for microseismic monitoring endeavours to map hydraulic fractures. For downhole monitoring, the event back-azimuthal ang......

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