| http://www.w3.org/ns/prov#value | - drogen having a temperature within a range of from about 350??? F. to about 900??? F., continuing to inject said hydrogen until sufficient pressure is achieved to cause hydrogenation of the Petroleum in said formation zone, terminating the injection of said hydrogen, recovering fluids including petroleum from said formation zone by way of said well, by way of another well penetrating said formatio
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