is designed for rocks bulk density estimation in section of engineering geological coal wells with a depth up to 1 000 m and hole diameters ranging from 42 to 200 mm.
The apparatus is adapted to Russian digital log recorders such as GEKTOR, VULCAN, KEDR, etc.
Features and Advantages
• scattered gamma-ray measurements are conducted at two different distances from source;
• during measurements the sonde is forced against the well side by the surface control clamping system;
• wide range of measured density;
• drilling mud and clay coating doesn’t effect instrument readings;
• open-hole investigation;
• dry and all type of mud system investigation.
|
Measured density range, kg/m3 |
1.1·103÷3.0·103 |
|
Density measurements error, % |
±2÷3 |
|
Operating temperature, °C |
-30÷90 |
|
Maximum Pressure, MPa |
10÷20 |
|
Gamma-ray source |
СS-137 |
|
Source activity, mg-eq Ra |
20÷40 |
|
Overall dimension, mm: diameter (when arms are closed) length |
36 1200 |
|
Max. arm opening, mm |
150 |
|
Weight, kg |
15 |