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. 20, 1980
Filed:
Feb. 22, 1979
Applicant:
Inventor:
David J Watanabe, Orange, CA (US);
Assignee:
Union Oil Company of California, Brea, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166300 ; 166307 ; 166308 ; 2528 / ;
Abstract
An aqueous fluoride salt solution and a substantially anhydrous acid precursor are introduced through a well into a high temperature subterranean formation containing siliceous materials. The acid precursor, which is a normally liquid halogenated hydrocarbon having one or two carbon atoms, hydrolyzes in situ to generate a hydrohalic acid which combines with the fluoride salt to acidize the siliceous materials.
Watanabe, David. (1980). Method for acidizing siliceous materials contained in high temperature (U.S. Patent No. 4203492). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4203492
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile