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. 24, 1989
Filed:
Sep. 04, 1987
Sandorne Bauer, Nagykanizsa, HU;
Zoltan Biro, Zalaegerszeg, HU;
Sandor Doleschall, Budapest, HU;
Eva Farkas, Budapest, HU;
Gyula Milley, Nagykanizsa, HU;
Tibor Paal, Nagykanizsa, HU;
Antal Szittar, Zalaegerszeg, HU;
Gyorgy Tiszai, Nagykanizsa, HU;
Geza Udvardi, Nagykanizsa, HU;
Jozsef Papay, Budapest, HU;
Magyar Szenhidrogenipari Kutato-Fejleszto Intezet, Szazhalombatta, HU;
Abstract
There is provided a process for the enhanced recovery of oil from oil bearing strata with gaseous or liquid form of carbon dioxide, the improvement which comprises prior to or simultaneously with the injection of carbon dioxide, injecting into the strata in a single slug or in a plurality of slugs a material consisting essentially of at least one compound which has a clay-effect inhibiting cation with a hydrated ion diameter of from about 0.136 to about 0.15 nm and a coordination number of 12, in a concentration number of 12, in a concentration of from about 0.001 mol to about 50 mol.