is designed to measure the thermal neutron flux caused by fast neutron moderation in the rock to provide the formation total waterlogged porosity and lithology within different kind of wells.

DescriptionFeatures and advantages

• downhole tool small diameter;
• pulse miscount elimination thanks to recording channel “dead time” correction for analog signal transmission with bipolar pulses 10-20 microsec due to statistic adjustment;
• high-efficiency neutron counter with helium filling agent.

TzSP-2NNK-43/60 is to be run with the log recorder Volcan V3 with one-core and tree-core cable.

Specifications

Waterlogged porosity range, %

1-40

Relative measurement error, %

5

Probe length (small/large), mm

300/600

Probe length variability (build-up number/length), mm

3/100

Neutron generator type

IBN-8-5

Neutron source emission rate, n/sec

2·108

Maximal operating temperature, °C

120

Maximal operating pressure, MPa

60

Downhole tool dimensions, mm:

diameter

length

 

43/60

1600

Weight, kg, up to

12/18

Certificate