Experimental Evaluation of H2S Yields in Reservoir Rocks Submitted to Steam Injection

D08 EXPERIMENTAL EVALUATION OF H2S YIELDS IN RESERVOIR ROCKS SUBMITTED TO STEAM INJECTION Abstract 1 Steam injection can induce H2S generation resulting from physicochemical transformations of sulfur compounds in reservoirs at temperatures from 200°C to 300°C: reactions between organic sulfur compounds and water (aquathermolysis) organic and mineral interactions (sulfate reduction and/or pyrite oxidation). The occurrence of these processes depends on the availability of the different sources of sulfur in reservoirs: organic sulfur sulfates and pyrite. The organic and mineral sulfur contents of bulk reservoir rocks might therefore be correlated to the yield of H2S that is potentially generated within reservoirs