Description
A-One Oil Multi-finger Caliper Tools is a high-precision logging tool used for measuring the changes in the inner diameter of the wellbore, through multiple independent extendable finger (24-finger, 40-finger, or 60-finger), it can fully detect deformation, corrosion, scaling, and holes in casing, providing the main data for reservoir development and wellbore integrity evaluation.
Through the MFCT interpretation software can display the actual condition of the measured casing inner wall in three dimensions, and at the same time, calculate the engineering data of the measured casing and perform statistical analysis.



Technical Parameters
|
General Specs |
|
|
Pressure Rating |
100Mpa |
|
Temperature Rating |
175℃ (350°F) |
|
Working Voltage |
18-24V |
|
Working Current |
100mA |
|
Length |
1848.5mm |
|
Connection Length |
1798.5mm |
|
Logging Speed |
10m/min |
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Connector Type |
13-Core |
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Logging Conditions |
|
|
Is it possible to have H2S here |
Measurable |
|
Tool Position |
Center of Casing |
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Dimensional Parameters |
|
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Can be with an Extended Arm |
Can |
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Diameter |
43mm (24-Arm) |
|
73mm (40-Arm) |
|
|
100mm (60-Arm) |
|
|
Well Diameter Measurement Range |
50mm~170mm (24-Arm) |
|
80mm~245mm (40-Arm) |
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|
110mm~270mm (60-Arm) |
|
|
Measurement Accuracy |
|
|
Accuracy |
±1mm |
|
Resolution Ratio |
0.1mm |
|
Relative Azimuthal Accuracy |
±3° |
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Relative Azimuthal Range |
0~360° |
|
Well Deviation Accuracy |
±3° |
Features
A-One Oil Multi-finger Caliper Tools adopts a 13-core connector, which can be connected with a variety of tools, such as Electro-Magnetic Flaw Detector, Electromagnetic Thickness Measurement, Gamma Well Temperature, Gyro Inclinometer, Downhole TV etc. Multiple sets of logging data can be obtained from a single trip down the well.
Applications
Casing Inspection: Evaluate casing deformation, corrosion, or wear, locate the points of damage, and complete well intervention operations.

FAQ
Q: Are your Multi-finger Caliper Tools for real-time mode or memory mode?
A: Memory mode.
Q: How to ensure logging accuracy.
A: Before downhole operations, using a calibrator to correct ensuring the well logging accuracy.
Q: Do you have case studies of actual data of tool in operations?
A: Yes, we have.
Q: How to operate the tools?
A: We will provide the Operating Manual.
In addition, our technical team will arrange professional operators to conduct online training for you . Easy to operate and safe to use.
Q: What's the maximum logging range of this tool?
A: 24-finge Well Diameter Measurement Range is 50~180mm
40-finger Well Diameter Measurement Range is 80~250mm
60-finger Well Diameter Measurement Range is 110~270mm
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