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The tool has the following modifications by max operating temperature T max and upper value of borehole hydrostatic pressure Pmax:
by temperature: 120°С,
by pressure: 80 МPа.
Tool code: AST-K-80-Tmax/Pmax
DESIGNED for borehole wall imaging, casing inner diameter and thickness measuring, cement bond evaluation.
USED in open and holes cased with a steel casing and filled with oil- and water-base mud.
APPLICATIONS:
casing technical control;
formation fracturing identification.
MEASURED PARAMETERS |
Range |
Error |
Borehole inner radius |
55÷120 mm |
±0.4 mm |
Casing thickness |
6.5÷10 мм |
±0.2 mm |
Bonding between cement stone and casing |
0÷1 |
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GENERAL SPECIFICATIONS |
Tool length, mm |
2500 |
not more |
Tool max diameter (without centralizers), mm |
80 |
not more |
Tool weight, kg |
70 |
not more |
Tool power supply:
Supply voltage, V
Supply frequency, Hz |
220
50 |
10%
1% |
Ambient operating temperature, °С |
120 |
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Max operating pressure, MPa |
80 |
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Borehole diameter, mm |
110÷240 |
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Logging speed, m/hr |
125 m/hr at the sampling rate of 10 cm
250 m/hr at the sampling rate of 20 cm |
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Records frequency per 1 rotation |
32 or 128 waveforms |
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Combinability |
bottom |
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Location in the borehole |
centralized |
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