The       Compensated       Neutron       tool contains   a   two   detector,   neutron   system which    uses    a    5.0    Curie,    Am241Be source   to   record   neutron   porosity   of   the formation.    Additionally,    the    tool    also records   short   and   long   neutron   counts, natural     gamma,     temperature     and     a deep guard resistivity.

Compensated Neutron Tool

FEATURES Properties Measured 1.   Natural Gamma: 2.9 x 10.2 cm (1.125 x 4.5 in.) NaI Scintillation Offset: 30.5 cm (12 in.) 2.   Deep Guard Resistivity: Upper guard, measure and lower guard electrodes, 3 m (10 ft.) Offset for measure electrode:147.3 cm (58 in.) 3.   Neutron Detector, Far Spacing: He3 5.1 x 25.4 cm (2 x 10 in.) 61cm (24 in.) spacing Offset: 218.4cm (86 in.) 4.   Neutron Detector, Near Spacing: He3 2.9 x 10.1 cm (1.125 x 4.0 in.) 32.4 cm (12.75 in.) spacing Offset: 241.3cm (95 in.) 5.   Temperature Measurement: Thermal temperature on needle sensor. Offset: 265.4 cm (104.5 in.) 6.   Radioactive Source: 5 Ci AmBe 241 neutron source, bullplug Offset: 276.9 cm (108 in.) Length: 282 cm (111 in.) Temperature: 85 C (185 F) Diameter: 5.1 cm (2.0 in.) Pressure: 232 kg/cc (3300 PSI) Weight: 16.4 kg (36 lb.) Logging Speed: 9 m/min. (30 ft./min.) Tool Voltage Required: 70 VDC TOOL# 9075