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. 17, 2012
Filed:
Apr. 16, 2008
Frédéric Nicolas, Rennes, FR;
Yoann Riou, Laille, FR;
Benjamin Saltel, Cintre, FR;
Jean-louis Saltel, Le Rheu, FR;
Frédéric Nicolas, Rennes, FR;
Yoann Riou, Laille, FR;
Benjamin Saltel, Cintre, FR;
Jean-Louis Saltel, Le Rheu, FR;
Saltel Industries, , FR;
Abstract
The method of the invention comprises inserting into the well or the piping to be cased, a tube () including tube sections previously connected end to end, proceeding with the radial expansion of the tube using an inflatable bladder () so that the wall thereof bears against that (C) of the well or the piping; wherein the method is characterized in that the expansion is achieved not on the entire length of the tube but only at certain areas () thereof which are spaced from each other by non-expanded portions (), so that the total length of the expanded areas () is substantially smaller than the total length of the non-expanded areas (), the number of expanded areas () being at least equal to three. The invention can be used in the field of water or crude oil production.