Two methods of determining permeabilities of naturally fractured rocks from laboratory measurements
AssigneeSaudi Arabian Oil Company
InventorsChao Liu, Dung T. Phan, Younane N. Abousleiman
Life of this patent
Estimating the term…
Loading patent…
AssigneeSaudi Arabian Oil Company
InventorsChao Liu, Dung T. Phan, Younane N. Abousleiman
Estimating the term…
A method for measuring a fracture permeability and a matrix permeability of a naturally fractured cylindrical rock sample, includes sealing both flat ends of the cylindrical sample; immersing the naturally fractured cylindrical rock sample in a fluid, and attaching an axial and a radial strain sensor to the curved surface of the sample. Furthermore, the method includes attaching a signal generator to one flat end of sample, and a signal receiver to the other flat end of the sample, and generating a harmonic excitation using the signal generator at a plurality of frequencies and recording the excitation at each of the plurality of frequencies. The method includes calculating an elastic wave propagation attribute at each of the plurality of frequencies, and inverting the elastic wave propagation attribute at each of the plurality of frequencies to determine the fracture permeability and the matrix permeability of the naturally fractured cylindrical rock sample.
A method for measuring a fracture permeability and a matrix permeability of a naturally fractured cylindrical rock sample, comprising:
A non-transitory computer readable medium storing instructions executable by a computer processor, the instructions comprising functionality for:
Dependencies are inferred from the claim text.