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KuTh Tool

KuTh tools supply information about the mineralogy of formations. The most frequent sources of natural radiation in the formations are thorium, uranium and potassium; the gamma rays generated by different elements or elementary interactions have different energy levels. The spectral gamma ray kut tool can identify the source of a particular gamma ray by measuring their amplitude or energy level. This way the tool can identify the amount of potassium, thorium, and uranium present in the shales and sands.


• detailed stratigraphic correlation
• marker bed identification
• location of radioactive tracers
• identification of fractures and zones of high permeability
• identification of depositional environments


Length: 1.14 m (45”)
Detector Position: 0.39 m (14.40”) from the bottom
Diameter: 2-3/4″
Weight: 3.9 kg (8.7 lbs)
Pressure Rating: 70 MPa (10 000 psi)
Temperature Rating: 175°C (350°F)
Power: 55 VDC / 35 mA Single conductor cablehead
Output Signal: Positive pulses from the tool are separated from negative pulses on the line using anti-coincidence circuitry. Pulse polarity can be set according to user requirements.
Detector Type: He3 proportional neutron detector