High-resolution high-speed nmr well logging device

Details High-resolution high-speed nmr well logging device High-resolution high-speed nmr well logging device

G - Physics

01

V

G01V 3/32 (2006.01) G01R 33/44 (2006.01) G01R 33/383 (2006.01)

Patent

CA 2415824

The present invention targets Bound Volume Irreducible (BVI) and clay bound water (CBW) measurements for NMR logging. A horseshoe-like magnet is housed within a sensor assembly (101) which is attached by an arm mechanism (102) to the body of the logging tool (103). The magnet poles are designed such that the magnetic field is uniform and perpendicular to tool motion. One transmitter coil and two receiver coils may be used.

L'invention porte sur des mesure par RMN du volume limité irréductible et du volume limité par l'argile pour la diagraphie des sondages. Un aimant en fer à cheval est placé dans un détecteur (101) lui-même attaché par un mécanisme à bras (102) au corps de l'outil (103) de diagraphie. Les pôles de l'aimant sont conçus pour produire un champ magnétique uniforme et perpendiculaire au mouvement de l'outil (103) . On peut utiliser une bobine émettrice et deux bobines réceptrices.

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