Microwave electromagnetic borehole dipmeter

Details Microwave electromagnetic borehole dipmeter Microwave electromagnetic borehole dipmeter

1984-04-18

1986-07-15

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

G01V 330

Patent

active

046008870

ABSTRACT:
A microwave electromagnetic logging tool for use in the determination of the dip of subsurface earth formations includes a continuous source of microwave energy, three microwave antennas positioned from the longitudinal axis of the logging tool and spaced approximately equally around such axis, and a device for measuring the loading effect on the three antennas as the three antennas continuously transmit microwave energy into the formations during movement of the logging tool through the borehole.

REFERENCES:
patent: 2455942 (1948-12-01), Coggeshall et al.
patent: 3114875 (1963-12-01), Haagensen
patent: 3125717 (1964-03-01), Ghose
patent: 3388323 (1968-06-01), Stripling
patent: 3582766 (1971-06-01), Iizuka
patent: 3849721 (1974-11-01), Calvert
patent: 3944910 (1976-03-01), Rau
patent: 4013950 (1977-03-01), Falls
patent: 4019126 (1977-04-01), Meador
patent: 4045724 (1977-08-01), Shuck et al.
patent: 4107597 (1978-08-01), Meador et al.
patent: 4383220 (1983-05-01), Baldwin
"Electromagnetic Propagation . . . A New Dimension in Logging," Society of Petroleum Engineers of AIME, Paper No. SPE 6542, by Thomas J. Calvert and Rama N. Rau, 1977.

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