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:
Apr. 26, 1983
Filed:
Oct. 09, 1980
Applicant:
Inventors:
Rudolf J Novotny, Arlington, TX (US);
Richard G Gandy, Grand Prairie, TX (US);
Assignee:
BJ-Hughes Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166292 ; 106 89 ;
Abstract
A well cementing composition and method of cementing well bores are disclosed in which a slurry is first prepared utilizing cement, mixing water, and aluminum hydroxychloride in the range of 0.1 to 4.5 weight percent based on the dry weight of cement. The slurry thus prepared when pumped into place in the well bore has zero free water content thereby reducing the bridging or channeling in the cement column which is associated with free water formation.