Patent ID: 7069990

Claim:
A process for enhanced oil recovery from within a target stratum comprising the steps of: selection of a target stratum having the following characteristics: permeable, porous, unconsolidated, laterally continuous sandstones or other hydrocarbon bearing strata; and providing at least one oil production well entering into said target stratum; providing at least one injection well in the region of said production well; providing a supply of slurried wastes comprising sand or viscous liquids or oily sludge in slurried form; delivering said slurried wastes into the target stratum with sufficient pressure to induce fracturing within said target stratum; monitoring on a continuous basis bottom hole pressure (“bhp”) of the slurried wastes and delivering the slurried wastes into the injection well in a series of injection episodes separated by interinjection episodes, whereby each of said injection episodes terminates approximately upon determining an increase in the bhp above a first selected level, and the interinjection episode terminates approximately upon determining a drop in bhp below a second selected level, thereby maintaining a generally constant bottom hole pressure between the first and second levels throughout the injection process thereby achieving a generally continuous long term waste disposal; and recovering desirable hydrocarbons through the production well or wells.