Well logging system arranged for stable, high-sensitivity recept

Details Well logging system arranged for stable, high-sensitivity recept Well logging system arranged for stable, high-sensitivity recept

1995-03-28

1997-09-30

O'Shea, Sandra L.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

343720, 343744, G01V 330

Patent

active

056729715

ABSTRACT:
The present invention is directed to an improved logging apparatus. The logging apparatus includes transmitters, receivers, and a controller member. The controller member is utilized to selectively energize the transmitters to generate an interrogation signal. The receivers are utilized to obtain measurements of the interrogation signal. The controller member can be utilized to substantially simultaneously process the recorded samples--such as by mathematically combining a plurality of measurements in order to obtain a measure of an attribute value which relates to at least one of the wellbore and surrounding formation.

REFERENCES:
patent: 3849721 (1974-11-01), Calvert
patent: 4107597 (1978-08-01), Meador et al.
patent: 4553097 (1985-11-01), Clark
patent: 4703278 (1987-10-01), Nussbaum et al.

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