DOWNHOLE BURNER WELLS FOR IN SITU CONVERSION OF ORGANIC-RICHROCK FORMATIONS

摘要

A method for in situ heating of an organic-rich rock formation is provide d Preferably the organic-.pi.ch rock formation comprises kerogen. The method may include the steps of providing a first wellbore extending at least to a depth of the organic-rich rock formation, and providing a second wellbore a lso extending to a depth of the organic-rich rock formation and intersecting the first wellbore. The method may also include injecting air and a combust ible fuel into the first wellbore, and providing a downhole burner in the we llbore so as to cause the air and the combustible fuel to mix and to combust at substantially the depth of the organic-rich rock formation. The method m ay further include circulating combustion products into and up the second we llbore.