公开(公告)号：US06338386B1

公开(公告)日：2002-01-15

申请号：US09568726

申请日：2000-05-11

申请人： Steven Catania ,  Neil Mansuy

发明人： Steven Catania ,  Neil Mansuy

IPC分类号： E21B3708

CPC分类号： E21B43/26 ,  B09B1/00 ,  B09B1/006 ,  E21B43/164 ,  Y02C20/20 ,  Y02W30/35

摘要： Gaseous and liquid carbon dioxide (CO2) 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 CO2 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.