3D waterflood monitoring at Lost Hills with crosshole EM

Abstract

Producing oil and gas at the Lost Hills Field in central California has always been a challenge. Although the reserves are significant, production is hampered by low matrix permeability and unusual mechanical properties in the diatomite (marine mudstone/siltstone) reservoir. Since 1911 operators have struggled with methods to improve production, control local subsidence and well failure, and improve recovery that presently is projected to be less than 10%.