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:
Oct. 05, 2004
Filed:
May. 29, 2003
Damien Despax, Aix-en-Provence, FR;
Robert Dovis, Aix-en-Provence, FR;
Jean-Michel Fedele, Marignane, FR;
Jean-Pierre Martin, Le Vaudreuil, FR;
Innov-Pro, Le Vaudreuil, FR;
Abstract
Methods and devices for determining the quality of an oil well reserve or the like delivering a given fluid derived from a productive layer, by measuring the response R of the well. The method implemented by the device comprises modulating the fluid flow rate ( ) in the well ( ) by a sinusoidal function with a controllable preventer ( ), and measuring the variations in flow rate and pressure of the fluid respectively with a flow meter ( ) and a pressure sensor ( ), the response Rc of the well ( ); if the productive layer comprises a damaged zone having a positive formation damage of non-null thickness, is obtained by the equation (I), and the response Rf of the well; if the productive layer comprises a fracture having a negative formation damage, is obtained by the equation (II). The invention is applicable to oil prospecting.