Induction resistivity imaging principles and devices in oil...

G - Physics – 01 – V

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G01V 3/38 (2006.01)

Patent

CA 2592363

An induction logging tool having transmitter and receiver antennas is used to make measurements of earth formations. The antennas may be mounted on the mandrel of a bottomhole assembly for MWD applications, or may be pad mounted for wireline applications. The induction measurements are inverted using a linearized model. The model parameters are determined in part from caliper measurements.

L'invention porte sur un outil de diagraphie par induction muni d'antennes d'émission et de réception servant à effectuer des mesures sur les formations. Les antennes peuvent être montées sur le mandrin d'un appareil de fond de puits pour des applications en cours de forage ou être montées sur le patin pour des applications en bout de câble. On inverse les mesures d'induction à l'aide d'un modèle linéarisé dont les paramètres sont déterminés en partie à partir de mesures faites au calibre.

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