Evaluation of Shaly Sands with Low Deliverability


Darrel E. Cannon, Schlumberger

CIMM’s General Meeting
Vancouver, B.C., April 18, 1973



Historically, wells encountering only shaly sands with low deliverabilities have been abandoned as dry holes; and explorat- ion for such reservoirs has been considered uneconomical. With an increasing demand for hydrocarbons, however, shaly reservoirs such as the Second White Specks, Milk River, Medicine Hat, and Belly River of Southern Alberta and Saskatchewan, formerly consid- ered uneconomical plays, have now become sought-after prospects.