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Calibrator for radioactivity well logging tools

Patent ·
OSTI ID:6512080
A radioactivity well logging tool including a gamma radiation detector is field calibrated with the help of a flexible sheet with a radioactive substance dispersed therein, is wrapped about the tool so as to completely surround the detector. The sheet is made of an elastomer such as polyurethane, and the radioactive substance is carnotite. This sheet is placed within a nylon sheath which has straps for holding the calibrator wrapped around the tool.
Assignee:
Schlumberger Technology Corp.
Patent Number(s):
US 4119847
OSTI ID:
6512080
Country of Publication:
United States
Language:
English

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Related Subjects

440400* -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
ACTINIDE COMPOUNDS
BOREHOLES
CALIBRATION
CARNOTITE
CAVITIES
COVERINGS
DESIGN
DETECTION
ELECTRONIC CIRCUITS
GAMMA DETECTION
GAMMA SOURCES
GAMMA-GAMMA LOGGING
GEOLOGIC FORMATIONS
INTERFACES
MEASURING INSTRUMENTS
METAMORPHIC ROCKS
MINERALS
NYLON
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOTOMULTIPLIERS
PHOTOTUBES
PLASTICS
POLYAMIDES
POLYMERS
POLYURETHANES
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RADIOACTIVITY LOGGING
ROCKS
SCINTILLATION COUNTERS
SHALES
SLEEVES
TRANSITION ELEMENT COMPOUNDS
URANIUM COMPOUNDS
URANIUM MINERALS
URANIUM VANADATES
VANADATES
VANADIUM COMPOUNDS
WELL LOGGING