J. Sothcott
University of Reading
21 Papers
110 Citations
J. Sothcott is an academic researcher from University of Reading. The author has contributed to research in topics: Pore water pressure & Shear waves. The author has an hindex of 9, co-authored 21 publications.
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Papers
The relationships between the velocities, attenuations and petrophysical properties of reservoir sedimentary rocks1
TL;DR: In this paper, the authors measured the velocities and attenuations of compressional and shear waves in 29 water-saturated samples of sandstones and shales at a confining pressure of 60 MPa and at frequencies of about 0.85 MHz.
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Variation in dynamic elastic shear modulus of sandstone upon fluid saturation and substitution
Jalal Khazanehdari,J. Sothcott +1 more
TL;DR: In this paper, the authors observed that the change in dynamic shear modulus upon fluid saturation is highly dependent on the type of saturant, its viscosity, rock microstructure, and applied pressures.
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Experimental measurements of seismic attenuation in microfractured sedimentary rock
TL;DR: In this article, empirical linear relationships between 1/Q and crack density were found to be:CD = 1.96 + or - 0.63 X 1 /Q, for compressional waves andCD = 6.7 + or 1.5 X 1/q, for shear waves.
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Velocity anisotropy and attenuation of shale in under- and overpressured conditions
TL;DR: In this article, the seismic velocity and attenuation of fully saturated shales were measured for the first time under overpressured conditions, using the ultrasonic reflection technique, with errors less than 0.3% and 0.1dB/cm, respectively, at a frequency of 0.75MHz.
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Seismic velocities in fractured rocks: an experimental verification of Hudson's theory1
TL;DR: In this article, the authors used ultrasound at 0.85 MHz in dry and water-saturated specimens at high and low effective pressures to detect cracks and fractures in Carrara marble.
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