Probe for radiologically determining the density of rock in a drilled well

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United States of America Patent

PATENT NO 5736636
SERIAL NO

08661082

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Abstract

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A probe for determining the density of the material forming the wall of a wellhole provided with a selectively actuable source of gamma radiation pulses, including a pulse electron accelerator having an anode and cathode in axial alignment with a control electrode therebetween, the anode being connected to the output of the secondary coil of a Tesla transformer the primary coil of which is connected to the output of a capacitive high voltage charge unit. Emitted and scattered radiation are measured by first and second detectors the outputs of which are fed to a divider to derive a quotient of the outputs as a value representative of the density.

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Patent Owner(s)

Patent OwnerAddress
BBI-GESELLSCHAFT FUER BRUNNEN UND BOHRLOCHINSPEKTION M B HWIESENSTRASSE 34 D-39245 GOMMERN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Krabi, Jaanus Berlin, DE 1 9
Kravtsov, Vladimir Ivanovich Moscow, RU 1 9
Maurer, Michael Biederitz, DE 55 622
Mozelev, Alexander Alexeevich Moscow, RU 1 9
Schaale, Andreas Berlin, DE 1 9
Voigt, Wolfgang Gommern, DE 10 47

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