Water shutoff treatments in eastern alberta: doubling oil production, decreasing water cut by 20

摘要

Poor primary cement jobs in the Provost area of eastern Alberta, Canada, have resulted in approximately 200 wells being classified as economically marginal. The inadequate cement bonding in these wells has caused the channeling of water from the formation below (as in Dina "C", Fig.1). Analysis of the production data supported the thesis that channeling was the principal reason for the increase in water production. In 90