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:
Apr. 03, 1990
Filed:
Jan. 18, 1989
Applicant:
Inventors:
Andre Cheymol, Dange, FR;
Alain Basse, Pau, FR;
Francois C Gueuret, Voisins Le Bretonneux, FR;
Gilbert C Blu, Paris, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166285 ; 166187 ; 166192 ; 166313 ; 166387 ;
Abstract
The invention provides a method of separating at least two production zones in a well (P) using the following method and apparatus. The method is a method of making a sealing ring (18) in situ in an annular space (5) lying between a well (P) and casing (T) in the well, with the sealing ring being made adjacent to a production zone in the well, and with the method comprising the following stages:
Cheymol, Andre. (1990). Method of isolating production zones in a well, and apparatus for (U.S. Patent No. 4913232). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4913232
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile