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:
Aug. 16, 1994
Filed:
Jun. 07, 1993
Applicant:
Inventors:
Leon M Marmorstein, San Francisco, CA (US);
Ignaty M Petuhov, Sankt-Petersburg, SU;
Vladimir S Sidorov, Leningrad Oblast, SU;
Piotr A Aleksandrov, Sankt-Petersburg, SU;
Valentin T Grebennikov, Moscow, SU;
Assignee:
UMA Ltd., St. Petersburg, RU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166307 ; 166298 ; 166300 ;
Abstract
Oil wells productivity is increased by cyclically treating a shaft-adjacent zone of the well with a seam-forming liquid which contains additional activating components.