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Gamma-ray spectrometry tool SGK-1024

СГК-1024 The tool has the following modifications by max operating temperature T max and upper value of borehole hydrostatic pressure Pmax :
 by temperature: 120, 150, 175, 200 °С,
 by pressure: 80, 100, 120, 140 МPа.
Designed for evaluation of natural radioelements mass content: thorium (Th), uranium (U) and potassium (K) in rocks.

Used for logging of open oil and gas holes filled with any mud; the tool operates with a three-conductor carrying logging cable up to 7000m long and log recorders that provide for command transfer and data receipt in “Manchester-2” code.

Applications:
 well sections and lithological changes correlation;
 detailed lithological identification;
 clayiness evaluation;
 stratigraphic studies;
 reservoir properties identification/refinement;
 rocks mineral composition identification/refinement.

 Measured parameters Range Error
Thorium mass content (THOR) 0.5÷200×10-4% ±1.5×10-4%, 10% at THOR >15×10-4%
Uranium mass content (URAN) 0.5÷200×10-4% ±1.5×10-4%, 10% at URAN >15×10-4%
Potassium mass content (POTA) 0.1÷20 % ±0.3 %

 General specifications
Tool length, mm 1810 not more than
Tool diameter, mm 76 not more than
Tool weight, kg 37 not more than
Power supply:
supply voltage, V
supply frequency, Hz

220
50

10%
1%
Borehole diameter, mm 110÷350  
Logging speed, m/hr
- in active (terrigenous) section (JGR >5mR/h) 
General studies
Detailed studies
- in low active (carbonate) section (JGR‹5mR/h)
General studies
Detailed studies

140÷180
80÷120

110÷150
60÷100

 
Combinability feed-through  
Location in the borehole free