Study on relationship between bottom water and interbed of heavy oil during steam stimulation

Steam stimulation belongs to depletion production.In contrast with normal inject water development,the pressure decrease of it is great,so it is easier to cause bottom water coning and flood hydrocarbon zone,and the utilization efficiency of hydrocarbon zone and recovery of reservoir will also be decreased.In view of general analytic method can’t describe this effect quantificationally.Based on principle of bottom water conning and by-passing of interbed,used numerical simulation method of three phases with two components,combined with actual production data,studied effect and relationship of bottom water and interbed to steam stimulation effectiveness of heavy oil reservoir with bottom water.This result can give some construction to development of bottom water heavy oil reservoir.