Patent ID: 7618925

Claim:
A method of disposing of drill cuttings into a subterranean formation, the method comprising: grinding the drill cuttings in a water-base fluid to form a slurry, wherein the water based fluid includes: an aqueous based continuous phase and a shale hydration inhibition agent which includes an acid salt or free-base of a mixed polycycloaliphatic amine having the formula: in which R and R′ independently selected from hydrogen, methyl, ethyl or propyl, R″ is a bridging group having 1 to 20 carbon atoms and n has a value from 1 to 4 and X is an amine, hydroxyl, alkoxy, carboxy group, in which at least one of the amine functional groups have been reacted with a predetermined amount of C1 to C25 carboxylic acid; and wherein the concentration of shale hydration inhibition agent is from about 0.5 to about 20 pounds per barrel of the water based fluid, and injecting the slurry into the subterranean formation.