Synthetic focusing method for excited polarized logging
A technology of excitation polarization and focusing method, which is applied in the direction of electric/magnetic detection for well logging records, can solve the problems of limited practical application range, low resolution and measurement accuracy, and achieve the purpose of improving layering ability and improving The effect of measurement accuracy
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[0019] Embodiment of the invention
[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] The electrode system of the present invention has nine annular electrodes embedded in a cylindrical insulating rod. The main electrode is A 0 ,M 1 , M 1 ' and M 2 , M 2 ′ are two pairs of supervisory electrodes, and two pairs of shielding electrodes are A 1 、A 1 ' and A 2 、A 2 ’, taking the main electrode as the center, and aligning each pair of electrodes with respect to A 0 The electrodes are arranged symmetrically, and each pair of electrodes is short-circuited with each other. B is the power supply loop electrode, N is the measurement loop electrode.
[0022] The object of the present invention is achieved in the following way: no matter the deep survey or the shallow survey, the induced polarization logging is divided into two sub-fields or a plurality of sub-fields, and the ...
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