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:
Feb. 23, 1999
Filed:
Oct. 31, 1997
Applicant:
Inventors:
Joseph Mzik, Calgary, CA;
Ronald G Pierce, Calgary, CA;
Denis R Gaudet, Calgary, CA;
Dwight M Bobier, Calgary, CA;
Assignee:
Canadian Fracmaster Ltd., , CA;
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; C09K / ;
U.S. Cl.
CPC ...
507211 ; 166308 ;
Abstract
A fracturing fluid composition for use in fracturing underground formations, such as oil or gas wells is described. It includes at least one anhydrous aliphatic alcohol, a modified guar gum polymer, and as a complexor, a sodium borate salt. A gel breaker which acts over a time period to degrade the guar gum cross linked polymer and thereby reduce the viscosity of the gel is provided as well to aid in the removal thereof from an oil or gas well that has been fractured by application of the fluid under pressure.