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Title: Single well tracer method to evaluate enhanced recovery

Patent ·
OSTI ID:6274419

Data useful to evaluate the effectiveness of or to design an enhanced recovery process (the recovery process involving mobilizing and moving hydrocarbons through a hydrocarbon-bearing subterranean formation from an injection well to a production well by injecting a mobilizing fluid into the injection well) are obtained by a process which consists of sequentially determining hydrocarbon saturation in the formation in a volume in the formation near a well bore penetrating the formation, injecting sufficient of the mobilizing fluid to mobilize and move hydrocarbons from a volume in the formation near the well bore penetrating the formation, and determining by the single well tracer method a hydrocarbon saturation profile in a volume from which hydrocarbons are moved. The single well tracer method employed is disclosed by US 3,623,842. The process is useful to evaluate surfactant floods, water floods, polymer floods, CO/sub 2/ floods, caustic floods, micellar floods, and the like in the reservoir in much less time at greatly reduced costs, compared to a conventional multiwell pilot test. 14 claims.

Assignee:
Continental Oil Co.
Patent Number(s):
US 4099565
OSTI ID:
6274419
Resource Relation:
Patent File Date: Filed date 18 Mar 1977
Country of Publication:
United States
Language:
English