Method of using seismic data to monitor firefloods

Details Method of using seismic data to monitor firefloods Method of using seismic data to monitor firefloods

1984-04-18

1986-03-25

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166256, E21B 43243, E21B 4700

Patent

active

045776903

ABSTRACT:
A method for identifying the location of the extent of travel of a combustion front following an in situ oil recovery operation employs a source of seismic energy and at least one seismic receiver for detecting seismic reflection signals from boundaries between subterranean formations on either side or opposite sides of such location. The properties of these seismic reflection signals are changed by the reduction in water saturation in the oil reservoir caused by the drying effect of the combustion front, and any such change is detected as an identification of the location of the extent of travel of the combustion front through the oil reservoir.

REFERENCES:
patent: 2670047 (1954-02-01), Mayes et al.
patent: 2803305 (1957-08-01), Behning et al.
patent: 3379248 (1968-04-01), Strange
patent: 3399721 (1968-09-01), Strange
patent: 3470954 (1969-10-01), Hartley
patent: 4184548 (1980-01-01), Ginsburgh et al.
Farr, "How Seismic is used to Monitor EOR Projects", World Oil, Dec. 1979, pp. 95-102.

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