Communications: directive radio wave systems and devices (e.g. – Transmission through media other than air or free space
Patent
1994-02-09
1995-03-21
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Transmission through media other than air or free space
G01S 1304
Patent
active
054000300
ABSTRACT:
Radar is used to detect and map near-surface geochemical alteration of rock and soil. The radar waves penetrate a buildup of carbonate and silica on the earth surface above micro-seepage of hydrocarbons dissolved in water. The hydrocarbon source may be an oil or gas reservoir buried many thousands of feet, or it may be from near-surface, man-made features. The thickness and sensitivity of the buildup is related to the size of the underground source or reservoir. Radar echoes from the bottom of the buildup provide a reservoir detection and mapping tool.
REFERENCES:
patent: 2075808 (1937-04-01), Fliess
patent: 2139460 (1938-12-01), Potapenko
patent: 2901689 (1959-08-01), Barret et al.
patent: 4218678 (1980-08-01), Fowler et al.
patent: 5280284 (1994-01-01), Johler
Duren Richard E.
Warren Roy K.
Exxon Production Research Company
Hellner Mark
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