Induction measurement in the presence of metallic, magnetic wall

Details Induction measurement in the presence of metallic, magnetic wall Induction measurement in the presence of metallic, magnetic wall

1995-12-11

1997-07-08

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

324345, G01V 328

Patent

active

056465335

ABSTRACT:
A device for induction measurement of a medium adjacent a cylindrical, metallic, magnetic walled well of a well casing includes at least two magnetic circuits for magnetically saturating the metallic wall. Each of the magnetic circuits has a plate-like central portion, situated between two lateral portions, each of which lateral portions has a lateral end which comes into contact with the wall, along a zone parallel to the cylindrical axis of the wall. After magnetic saturation of the metallic wall, an induction signal is induced into the medium beyond the metallic wall and retransmitted by the medium in response to the induction signal.

REFERENCES:
patent: 2194229 (1940-03-01), Johnston et al.
patent: 2770773 (1956-11-01), Cooley
patent: 3277363 (1966-10-01), Schuster
patent: 4748415 (1988-05-01), Vail
patent: 5038107 (1991-08-01), Gianzero et al.
patent: 5283520 (1994-02-01), Martin et al.
patent: 5426367 (1995-06-01), Martin et al.
Doll; "Introduction To Induction Logging and Application To Logging Of Wells Drilled With Oil Base Mud"; Jun. 1949; pp. 148-162; Petroleum Transactions, AIME.
Kojima et al; "Polymer-Alanine Dosimeter and Compact Reader"; 1989; pp. 851-857; Journal of Radiation Applications and Instrumentation.

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