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:
Jun. 30, 1998
Filed:
Jun. 03, 1996
Applicant:
Inventors:
David Horton, Calgary, Alberta, CA;
Alan Jones, Calgary, Alberta, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166283 ; 166295 ;
Abstract
Clay stabilizing agents used in fracturing fluids produce noxious odours, raise environmental concerns or are less than effective in subterranean formations of low permeability. Disclosed herein is an alternate stabilizing agent comprising at least one organic amine selected from the group consisting of primary diamines with a chain length of 8 or less and primary alkyl amines with a chain length of 4 or less. The organic amine is admixed with the fracturing fluid in an amount not less than 0.03% by volume of the fluid and typically in the range of from about 0.06% to 0.3% by volume of the fluid.