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. 09, 2000
Filed:
Nov. 26, 1997
Applicant:
Inventors:
Jiten Chatterji, Duncan, OK (US);
Lewis R Norman, Duncan, OK (US);
David D Onan, Duncan, OK (US);
Bobby J King, Duncan, OK (US);
Roger S Cromwell, Walters, OK (US);
Assignee:
Halliburton Energy Services, Inc., Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; E21B / ;
U.S. Cl.
CPC ...
166294 ; 106605 ; 106633 ; 106634 ; 166292 ; 166330 ; 507202 ; 507269 ;
Abstract
The present invention provides methods and compositions for sealing subterranean zones. The methods of the invention basically comprise the steps of preparing a sealing composition comprised of an aqueous alkali metal silicate solution, a gelling agent and a delayed acid activator for causing the composition to set into a rigid mass, placing the sealing composition in said subterranean zone and allowing the sealing composition to set into a rigid sealing mass therein.