Method for locating and identifying the type and geometrical...

Details Method for locating and identifying the type and geometrical... Method for locating and identifying the type and geometrical...

G - Physics

01

V

G01V 1/30 (2006.01)

Patent

CA 2368978

The invention relates to a method for locating and identifying the type and geometrical dimensions of hydro-carbon deposits and other underground fluid deposits. The anomalies in the Earth's natural frequency spectrum that are caused by a deposit are measured using sensors and different frequencies between 0.1 and 10 Hz that are char-acteristic of the respective deposits are filtered out respec-tively and analysed. The amplitudes of the maximums of the different frequencies measured are evaluated separately in at least two different frequency ranges, the relationship between the amplitude values of these maximums is deter-mined and measuring points are established.

L'invention concerne un procédé pour localiser des gisements d'hydrocarbures ainsi que d'autres gisements fluides souterrains et pour identifier leur type et leurs dimensions géométriques. Ce procédé consiste à mesurer au moyen de détecteurs les anomalies dans le spectre naturel des fréquences terrestres, provoquées par un gisement, puis à éliminer par filtrage différentes fréquences caractéristiques de chaque gisement dans la plage comprise entre 0,1 et 10 Hz, avant de les analyser. Il consiste également à mesurer séparément les amplitudes des maxima des différentes fréquences mesurées dans au moins deux plages de fréquences différentes, et à établir un rapport entre les valeurs d'amplitude des maxima, avant de déterminer des points de mesure.

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