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:
Sep. 04, 2001
Filed:
Jun. 11, 1999
Norbert Kohler, Villennes sur Seine, FR;
Jacques Jarrin, Nanterre, FR;
Jean-François Argillier, Saint-Cloud, FR;
Institut Francais Du Petrole, Rueil-Malmaison cedex, FR;
Abstract
A process for insulating a tubing string placed in a pipe and through which a fluid circulates, the insulant being a non-rigid foam produced from a liquid solution and placed in the annular space defined by the outside of the tubing string and the walls of the pipe in which these tubings are placed. A production well (,) opens, in the lower part thereof, onto a producing rock containing a fluid to be extracted. Tubing (,) is placed in production well (,). A zone (,) represents the annulus defined between the outside (,) of the tubing string and the walls of well (,) in which the tubing string is placed. A tube for injecting a liquid and/or gaseous fluid (,) is placed in annulus (,) and a liquid and/or gaseous fluid injection nozzle (,) opens into zone (,).