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:
May. 21, 1996
Filed:
Feb. 22, 1995
Applicant:
Inventors:
Jean-Pierre Pozzi, Meudon, FR;
Jean-Pierre Martin, La Garenne Colombes, FR;
Assignee:
Compagnie Generale de Geophysique, Massy, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01V / ;
U.S. Cl.
CPC ...
324346 ; 16625002 ; 324353 ;
Abstract
A method and the apparatus for in situ analysis of a rock formation that already contains fluid in its interstices an excitation device is provided for imparting motion to the fluid relative to the rock formation and the magnetic fields created by the relative motion of the fluid in the rock formation measured. The permeability of the rock formation are deduced from the measurement. The measurement system is particularly applicable to in situ measurement of the permeability of rocks, e.g. down an oil well.