A method of using surface acquired radiation data has proven successful in Kentucky's shallow oil reservoirs of the southern Illinois Basin. The theory adhered to is that measured surface radiation shows characteristic low activity above petroleum deposits when compared to surrounding areas. Mapping measured potassium data layered with total radiation data can aid in identifying pooled hydrocarbon deposits as well as the area and extent of these deposits.

An overview of proper field acquisition operations is given as well as an analysis of three radiometric surveys taken in Kentucky.

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