Patent ID: 7932723
Filing Date: 2011-04-26
Classification: G01V

Abstract:
1. A method of preparing a multicomponent induction logging tool having a plurality of transmitter antennas and a plurality of receiver antennas, the method comprising: (a) positioning the logging tool in a calibration area substantially free from components capable of interfering with magnetic and electric fields produced by the tool; (b) activating a first antenna of the plurality of transmitter antennas and measuring a signal in a first antenna of the plurality of receiver antennas; (c) using an antenna arrangement to produce a magnetic field at a position of the first receiver antenna substantially equal to a magnetic field that would be produced upon activation of the first transmitter antenna at the position of first receiver antenna with the logging tool in a borehole; and (d) moving at least one of: (i) the first antenna of the plurality of receiver antennas, or (ii) the first antenna of the plurality of transmitter antennas relative to a longitudinal axis of the logging tool to reduce a magnitude of the signal.