Method and apparatus for analysing geological features

Details Method and apparatus for analysing geological features Method and apparatus for analysing geological features

G - Physics

01

V

G01V 3/00 (2006.01) G01V 3/15 (2006.01) G01V 3/16 (2006.01) G01V 3/17 (2006.01)

Patent

CA 2677105

An apparatus (10) for analysing geological features comprises a receiver (20) for measuring a magnetic field received from adjacent geological features (18) excited by a periodic transmitted electromagnetic signal, wherein the measured magnetic field is a scalar amplitude of the magnetic field or a scalar amplitude of the magnetic field is derivable from the measured magnetic field, wherein the receiver generates a received signal from the measured magnetic field; and a processor (28) for filtering unwanted signal components which are substantially synchronous with the periodic transmitted electromagnetic signal from the scalar amplitude of the received signal or the scalar amplitude derived from the received signal, such that target geological features are able to be analysed using the filtered scalar amplitude.

La présente invention concerne un appareil (10) pour analyser des caractéristiques géologiques, comprenant un récepteur (20) destiné à mesurer un champ magnétique envoyé par des caractéristiques géologiques adjacentes (18) excitées par un signal électromagnétique périodique transmis, le champ magnétique mesuré étant une amplitude scalaire du champ magnétique ou une amplitude scalaire du champ magnétique étant dérivée du champ magnétique mesuré, le récepteur générant un signal envoyé par le champ magnétique mesuré; et un processeur (28) destiné à filtrer des composants indésirables du signal qui sont sensiblement synchrones avec le signal électromagnétique périodique transmis par l'amplitude scalaire du signal reçu ou de l'amplitude scalaire dérivée du signal reçu, de telle sorte que les caractéristiques géologiques puissent être analysées en utilisant l'amplitude scalaire filtrée.

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