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. 11, 2011
Filed:
Oct. 22, 2008
Applicants:
Neil Warrender, Calgary, CA;
Amir Mahmoudkhani, Calgary, CA;
Nga Tu Huynh, Calgary, CA;
Charles Sylvestre, Calgary, CA;
Inventors:
Neil Warrender, Calgary, CA;
Amir Mahmoudkhani, Calgary, CA;
Nga Tu Huynh, Calgary, CA;
Charles Sylvestre, Calgary, CA;
Assignee:
Sanjel Limited Partnership, Calgary, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 17/00 (2006.01); C04B 40/00 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cement composition comprises fine pumice particles, for use in cementing subterranean wells, and oil and gas wells in particular. The pumice containing cement blends feature enhanced compressive strength, and favorable compressive strength to Young's Modulus ratios. Lightweight cement blends containing pumice, and their use in cementing oil and gas wells are also described.