G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 1/40 (2006.01) E21B 49/00 (2006.01)
Patent
CA 2574479
A method for estimating a permeability of a formation surrouning a borehole comprises applying transient well-test conditions to the borehole. A portion of the formation is excited with an acoustic signal. The acoustic response corresponding to the acoustic exciting is measured with an acoustic receiver located within the borehole. The permeability of the formation is estimated using the acoustic response.
L'invention concerne un procédé permettant d'estimer une perméabilité d'une formation entourant un trou de forage, qui consiste à appliquer au trou de forage des conditions d'essais de puits transitoires. Une partie de la formation est excitée par un signal acoustique. On mesure la réponse acoustique correspondant à l'excitation acoustique à l'aide d'un récepteur acoustique placé à l'intérieur du trou de forage. La perméabilité de la formation est estimée au moyen de la réponse acoustique.
Cao Di
Charara Marwan
Delhomme Jean-Pierre
Lacour-Gayet Philippe
Manin Yves
Schlumberger Canada Limited
Smart & Biggar
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