 |
DESIGNED FOR evaluation of annulus cementing quality and identification of casing wear zones in oil and gas wells.
USED FOR logging of cased holes filled with any mud; operates with a three-conductor logging cable not more than 7000 m long.
APPLICATIONS:
 cement raising evaluation;
identification of intervals with different cement types (cement, gel-cement etc.);
casing string eccentricity determination;
dentification of collars, cementing cages, packers;
perforation intervals and casing wear identification.
The sonde consists of a gamma ray source Cs-137 (activity 0.3÷1.4 Cu), six gas-filled counters in differential channels of densitometer, one gas-filled counter in integral channel of thickness gage, and one scintillation detector in GK channel.
|
MEASURED PARAMETERS |
Range |
Error |
|
Cement density |
1.0÷2.0 g/cm³ |
±1.15 g/cm³ |
|
Casing string thickness |
5.0÷12 mm |
±0.5 mm |
|
GENERAL SPECIFICATIONS |
|
Tool length, mm |
3185 |
не более |
|
Tool mаx diameter, mm |
110 |
не более |
|
Tool weight, kg |
100 |
не более |
Tool power supply:
Supply voltage, V
Supply frequency, Hz |
220
50 |
10%
1% |
|
Ambient operating temperature, °С |
175 |
|
|
Max operating pressure, MPa |
120 |
|
|
Borehole diameter, mm |
120÷180 |
|
|
Logging speed, m/hr |
200÷300 |
|
|
Records frequency, pollings per 1 m |
5÷10 |
|
|
Combinability |
bottom |
|
|
Location in the borehole |
must be centralized |
|
|
