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. 13, 1980
Filed:
Sep. 28, 1978
Applicant:
Inventors:
John W Burnham, Duncan, OK (US);
James E Briscoe, Duncan, OK (US);
Eugene A Elphingstone, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252332 ; 252331 ; 252358 ; 252 / ; 166308 ;
Abstract
Methods and additives are provided for bringing about the delayed release of a chemical such as a gel breaker or demulsifier in an aqueous fluid. The additives are pelletized solids comprised of the chemical to be released, a hydratable gelling agent and a breaker for the gel produced by the gelling agent when hydrated.