Diluent-enhanced in-situ combustion hydrocarbon recovery...

Direct combustion stimulation of a producing well

Enhanced crude oil recovery

Enhanced oil recovery for oil reservoir underlain by water

Enhanced oil recovery process utilizing in situ steam generation

Enhanced recoveries of petroleum and hydrogen from underground r

Enriching off gas from oil shale retort

Establishing a combustion zone below a sill pillar in an in situ

Fire flood method for recovering petroleum from oil reservoirs o

Fire floor process

Formation fracturing

Fracture preheat oil recovery process

Gasification of coal

Generating medium BTU gas from coal in situ

Heavy oil recovery

Heavy oil recovery by high velocity non-condensible gas injectio

Heavy oil recovery from deep formations

Heavy oil recovery with fluid water and carbon dioxide

Hydrologic cells for recovery of hydrocarbons or thermal energy

Ignition of fragmented oil shale below a sill pillar in an in si