Natural Gamma Logging  Tool 2009 All Rights Reserved-Century Wireline Services
Used when the natural gamma log is required. This tools slim design permits logging in small diameter boreholes and through steel or PVC drill pipe of 2 inch inside diameter or larger. The sensor is located near the bottom of the tool to permit data acquisition near the total depth of the borehole. This tool can also be used with a spacer and gamma source to record 4 p density.
FEATURES Properties Measured 1.   Natural Gamma: 2.2 x 10.2 cm (0.875 x 4.0 in.) NAI Scintillation Offset: 101 cm (40.8 in.) Specifications: Length: 128.9 cm (50.75 in.) Temperature: 85 C (185 F) Diameter: 41 mm (1.625 in.) Pressure: 281 kg/cm2 (4000 PSI) Weight: 7.46 kg (20 lb.) Logging Speed: 9 m/min. (30 ft./min.) Tool Voltage Required: 36 VDC  Sensor Response Ranges Sensor Response Limits Accuracy Natural Gamma (NG) 0 - 400,000 API units +/-5% TOOL# 9012 Part #  318400  
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