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:
May. 18, 2010
Filed:
Apr. 20, 2006
Applicants:
Samuel Danican, Clamart, FR;
Bruno Drochon, Noisy le Grand, FR;
Simon James, Le Plessis-Robinson, FR;
Beilin Ding, Nozay, FR;
Inventors:
Samuel Danican, Clamart, FR;
Bruno Drochon, Noisy le Grand, FR;
Simon James, Le Plessis-Robinson, FR;
Beilin Ding, Nozay, FR;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/138 (2006.01); E21B 33/14 (2006.01); C09K 8/516 (2006.01); C09K 8/518 (2006.01);
U.S. Cl.
CPC ...
Abstract
A permeable cement composition including an aqueous slurry of a hydraulic cement which is based upon a water-immiscible dispersed fluid phase and a hollow particulate material. The hollow particulate material breaks down in the presence of the cement so as to leave voids which together with the dispersed phase create a permeable structure in the cement.