Method and apparatus for tensorial micro-resistivity imaging...

Details Method and apparatus for tensorial micro-resistivity imaging... Method and apparatus for tensorial micro-resistivity imaging...

G - Physics

01

V

G01V 3/20 (2006.01) E21B 47/026 (2006.01) G01V 3/24 (2006.01)

Patent

CA 2651097

An unfocused resistivity imaging device horizontal and vertical currents conveyed into the borehole. Pad mounted electrodes are used to make voltage measurements in orthogonal directions. The voltage measurements are then rotated to give principal resistivity measurements in an anisotropic formation with dipping beds.

L'invention concerne un dispositif d'imagerie par mesure de résistivité non focalisée qui estime une résistivité horizontale et une résistivité verticale de courants acheminés dans un forage. Des électrodes montées sur patins sont utilisées pour prendre des mesures de tension dans des directions orthogonales. Les mesures de tension sont ensuite tournées pour obtenir des mesures de résistivité principale dans une formation anisotrope avec lits inclinés.

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