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:
Jul. 21, 2020
Filed:
May. 13, 2009
Applicants:
Abdullah Al-dhafeeri, Al-Yarmok, SA;
Nader M. Obeid, Rabwah, SA;
Inventors:
Abdullah Al-Dhafeeri, Al-Yarmok, SA;
Nader M. Obeid, Rabwah, SA;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/60 (2006.01); C09K 8/72 (2006.01); C09K 8/58 (2006.01); E21B 43/25 (2006.01);
U.S. Cl.
CPC ...
C09K 8/60 (2013.01); C09K 8/58 (2013.01); C09K 8/72 (2013.01); E21B 43/25 (2013.01);
Abstract
A method and a composition for stimulating oil production from wells which have ceased production by pumping in a mixture of gluconic, oxalic and citric acids, isopropanol, ethylene glycol and sodium citrate between pre-flush and over-flush intervals, which composition and method does not include the use of hydrochloric acid or hydrofluoric acid.