is designed for rocks bulk density estimation in section of oil-bituminous, ore and coal wells with a depth up to 5 000 m and hole diameters ranging from 76 to 400 mm.
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;
• cased-hole investigation.
|
Measured density range, kg/m3 |
1·103÷4.5·103 |
|
Density measurements error, % |
±2 |
|
Operating temperature, °C |
-30÷120 |
|
Maximum Pressure, MPa |
60 |
|
Gamma-ray source |
СS-137 |
|
Source activity, mg-eq Ra |
20 – 40 |
|
Overall dimension, mm: diameter (when arms are closed) length |
48 1700 |
|
Max. arm opening, mm |
400 |
|
Weight, kg |
25 |