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:
Jan. 09, 2001
Filed:
Sep. 22, 1998
Applicant:
Inventors:
Jean-François Argillier, Suresnes, FR;
Annie Audibert-Hayet, Croissy sur Seine, FR;
Sabine Zeilinger, Saint Germain en Laye, FR;
Assignee:
Institut Francais du Petrole, Rueil, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 7/08 ; B01F 3/04 ;
U.S. Cl.
CPC ...
C09K 7/08 ; B01F 3/04 ;
Abstract
The invention concerns a water based foaming composition and the method of making it. The composition is optimized in that it contains a surfactant specifically selected according to the polymer also present in the composition. The surfactant and the polymer are selected so that they are oppositely charged. The invention is very useful in drilling or treating wells.