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. 20, 2015
Filed:
Apr. 09, 2009
Simon James, Le Plessis-Robinson, FR;
Michel Michaux, Verrieres-le-Buisson, FR;
Clara Carelli, Paris, FR;
Sylvaine Le Roy-delage, Paris, FR;
Simon James, Le Plessis-Robinson, FR;
Michel Michaux, Verrieres-le-Buisson, FR;
Clara Carelli, Paris, FR;
Sylvaine Le Roy-Delage, Paris, FR;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Fluid compositions containing a silica-particle suspension with no intrinsic cementitious properties may be pumped into a wellbore. Upon making downhole contact with previously placed well cements from primary-cementing or previous remedial-cementing operations, the silica suspension reacts to form a gel that seals voids, cracks or fissures in the cement sheath. Portland cement is the preferred cement with which the silica-particle suspensions interact downhole.