Stoneley wave

It is named after the British seismologist Dr. Robert Stoneley (1894–1976), a lecturer in the University of Leeds, who discovered it on October 1, 1924.

They make up a large part of the low-frequency component of the signal from the seismic source and their attenuation is sensitive to fractures and formation permeability.

Recent studies have found that Stoneley wave processing in borehole help to distinguish between fractured versus non-fractured coal seam.

The standard data processing of sonic logs to derive wave velocity and energy content is explained in[6] and.

Stoneley waves can be partly reflected at sharp impedance contrasts such as fractures, lithology, or borehole diameter changes.