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. 07, 1996
Filed:
Dec. 27, 1994
Applicant:
Inventor:
Robert D Sydansk, Littleton, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
175 69 ; 175 65 ; 507102 ; 507120 ; 507134 ; 507135 ; 507136 ;
Abstract
A process employing a polymer enhanced foam in a wellbore as a drilling fluid during a wellbore drilling operation. The polymer enhanced foam is formed from an uncrosslinked acrylamide polymer, a surfactant, an aqueous solvent, and an added gas.
Sydansk, Robert. (1996). Polymer enhanced foam drilling fluid (U.S. Patent No. 5513712). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5513712
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile