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:
Jan. 26, 2010
Filed:
Aug. 21, 2004
Applicants:
Juanita M. Cassidy, Duncan, OK (US);
Chad E. Kiser, Comanche, OK (US);
Jim L. Lane, Duncan, OK (US);
Inventors:
Juanita M. Cassidy, Duncan, OK (US);
Chad E. Kiser, Comanche, OK (US);
Jim L. Lane, Duncan, OK (US);
Assignee:
Halliburton Energy Services, Inc., Duncan, OK (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/60 (2006.01); C09K 8/74 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and aqueous acid solutions for acidizing wells containing sludging and emulsifying oil are disclosed. An aqueous acid solution of the invention comprises water, hydrochloric acid, a cationic hydrochloric acid corrosion inhibitor and a conjugate ion pair of a cationic amine oxide surfactant and an anionic surfactant that does not react with the cationic hydrochloric acid corrosion inhibitor.