Method for estimating the hydraulic conductivity of a...

Details Method for estimating the hydraulic conductivity of a... Method for estimating the hydraulic conductivity of a...

G - Physics

01

V

G01V 1/48 (2006.01) E21B 49/00 (2006.01)

Patent

CA 2200246

A method for modeling fracture zones in the sidewall of a borehole and for estimating the hydraulic conductivity thereof. The method first separates Stoneley wavefields into a directly-transmitted wavefield and a one-way (i. e. downgoing) reflected wavefield from which the depth configuration may be determined. The separated wavefields are corrected for the effects of borehole irregularity due to such effects as washouts and the like by numerically modeling Stoneley wave propagation using caliper and slowness measurements. The hydraulic conductivity is estimated from parameters derived from synthetic and measured Stoneley-wave data across the fracture zone in combination with measurements of the borehole radius.

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