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. 04, 1994
Filed:
Apr. 29, 1992
Applicant:
Inventor:
Jacques Lessi, Maule, FR;
Assignee:
Institut Francais du Petrole, Malmaison Cedex, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
73155 ;
Abstract
A process and a device for creating production logs in a gushing well. A seal permits measurement of at least part of the upstream flow and/or downstream flow in the well relative to the seal. The pressure differential is monitored on either side of the seal.