Logging of cased well by induction logging to plot an induction

Details Logging of cased well by induction logging to plot an induction Logging of cased well by induction logging to plot an induction

1994-01-12

1995-06-20

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

324221, 324368, G01V 328, G01B 706

Patent

active

054263670

ABSTRACT:
Well logging method and apparatus which provides a magnetic saturation signal to at least a transmitter and one receiver mounted in a well casing of a well so as to open "windows" in the casing to allow the impedances of the formations outside the casing to be logged and recorded and also to detect faults in the casing.

REFERENCES:
patent: 2357666 (1944-09-01), Kuehni
patent: 2770773 (1956-11-01), Cooley
patent: 2817808 (1957-12-01), Gieske
patent: 3277363 (1966-10-01), Schuster
patent: 3405353 (1968-10-01), Smith et al.
patent: 4704579 (1987-11-01), Pyatt et al.
patent: 4715442 (1987-12-01), Kahil et al.
patent: 5038107 (1991-08-01), Gianzero et al.

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