Well logging apparatus for determining dip, azimuth, and invaded

Details Well logging apparatus for determining dip, azimuth, and invaded Well logging apparatus for determining dip, azimuth, and invaded

1986-06-20

1988-08-23

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

324338, 343767, G01V 318, G01V 328, H01Q 1310

Patent

active

047663847

ABSTRACT:
A well logging apparatus is disclosed which employs slot antennas having a plurality of conductive probes traversing the slot. Also disclosed are a logging apparatus having electrically isolated antenna probes and a logging apparatus with an improved circuit for generating and applying a reference signal used in phase detection.

REFERENCES:
patent: 2431124 (1947-11-01), Kees et al.
patent: 4052662 (1977-10-01), Rau
patent: 4054876 (1977-10-01), Hoople
patent: 4383220 (1983-05-01), Baldwin
patent: 4422043 (1983-12-01), Meador
patent: 4511842 (1985-04-01), Moran et al.
patent: 4529938 (1985-07-01), Hagiwara
patent: 4571592 (1986-02-01), Justice
patent: 4651100 (1987-03-01), Janes
patent: 4652829 (1987-03-01), Safinya
Serov et al.; Probe for the Measurement of Magnetic Fields with Sub-Nanosecond Resolution, Review of Scientific Instrum., vol. 46, No. 7, Jul. 1975, pp. 886-888.

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