The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2007
Filed:
May. 19, 2003
Damien Despax, Aix-en-Provence, FR;
Damien Despax, Aix-en-Provence, FR;
Sondex PLC, Hook, GB;
Abstract
The present invention relates to a method of evaluating the hydraulic potential of a porous stratum defined between two depths zand z, the method consisting in generating periodic modulation in the rate of flow from the well, in lowering down the well and in activating for a few periods at the depth za measuring PLT sonde, in extracting from the resulting measurements the amplitude ΔQof the sinusoidal component of the flow rate modulation relating to one of the imposed periods T, the amplitude ΔPof the sinusoidal component of the pressure modulation relating to the same period T, and the phase delay of the pressure sinewave relative to the flow rate sinewave φ,