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  

Natural Gamma Logging  Tool