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.

Date of Patent:
Nov. 05, 2002

Filed:

Dec. 14, 2001
Applicant:
Inventors:

Jean-Pierre Martin, 27100 Le Vaudreuil, FR;

Robert Dovis, Malemort, FR;

Jean-Michel Fedele, Marignane, FR;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/700 ; E21B 2/300 ; G01V 1/00 ;
U.S. Cl.
CPC ...
E21B 4/700 ; E21B 2/300 ; G01V 1/00 ;
Abstract

The present invention relates to analysis tools for analyzing the ground , from a surface thereof, by means of a sonde having a given analysis lobe and a resolution time T. The tool of the invention is essentially characterized by the fact that it comprises a drive head driven to move in continuous translation at a speed V relative to the surface and along a direction parallel to the surface , a skid , means for associating the sonde and the skid so that the sonde can analyze the rocks contained in its lobe , and means for coupling together the drive head and the skid so that the two elements can be displaced relative to each other along the direction over a distance D. The tool of the invention finds a particularly advantageous application in analyzing oil-bearing rocks surrounding the wall of an oil well , in order to determine both the distribution of the porosity of the rocks, and their associated permeability.


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