A Review of the Discrete Wavenumber Method Page 1 A Review of the Discrete Wavenumber
Method MICHEL BOUCHON 1 Abstract — We present a review of the discrete wavenumber …

The finite difference method is applied to the study of the dynamics of a three‐dimensional
fluid‐filled crack excited into resonance by the sudden failure of a small barrier of area ΔS …

The dynamics and seismic radiation of fluid‐filled cracks have been studied by numerous
authors, as models for tremor and for long‐period events observed at volcanoes. One of the …

The Mallik 2L‐38 research well was drilled to 1150 m under the Mackenzie Delta, Canada,
and penetrated a subpermafrost interval where methane hydrate occupies up to 80% of the …

Abstract Distributed Acoustic Sensing (DAS) is a new technology in which seismic energy is
detected, at high spatial and temporal resolution, using the propagation of laser pulses in a …

Introducing the first, self-contained reference on acoustic waveform logging Acoustic
measurements in boreholes were first made as a specialized logging technique in …

A study of the effects of macroscopic fractures on P and S wave velocities has been
conducted in four wells drilled in granitic rock to depths between 0.6 and 1.2 km. The effect …

Acoustic waveform measurements in boreholes have important applications in fracture
hydrology and radioactive waste disposal, but ambiguities in existing interpretation …

A general expression is derived for the dispersion relations and the impulse response of a
radially layered borehole. The model geometry consists of a central fluid cylinder …

Methods for the determination of in situ P and S wave attenuation from full waveform
acoustic logs are developed. For P waves, the peak amplitude ratios of the refracted P …