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. 15, 2002
Filed:
May. 11, 2000
Applicant:
Inventors:
Steven Catania, New Windsor, NY (US);
Neil Mansuy, Kansas City, MO (US);
Assignee:
Subsurface Technologies, Rock Tavern, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/708 ; E21B 4/706 ; B09B 1/00 ;
U.S. Cl.
CPC ...
E21B 3/708 ; E21B 4/706 ; B09B 1/00 ;
Abstract
Gaseous and liquid carbon dioxide (CO ) are applied to a landfill well to penetrate the landfill under rapid pressurization and depressurization repeated in cycles, with or without leachate or fluid in the well. These cycles can be repeated until the CO flows more freely down a lower pressure gradient in the well into the landfill surrounding the well screen, creating fissures in the landfill which allow methane and other gases to enter the well, thereby significantly enhancing methane and other landfill gas recovery.