Ultrasonic Borehole Imaging Logging
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Basic Information
| Model | Diameter (mm) | Length (mm) | Weight (kg) | Pressure (MPa) | Working Temp. (℃) |
| SALM-S1 | Φ40 | 1620 | 15.0 | 40 | -30~150 |
Description
Ultrasonic imaging logging measures and records the geological features of the borehole wall such as bedding, fractures and cavities. It presents this information intuitively and vividly as a two-dimensional image, with formation attitude displayed clearly and richly, providing a sound scientific basis for studying the geological phenomena and features near the borehole.
The acoustic borehole imaging system consists of a downhole tool, surface electronics, an acquisition computer and interpretation software. The downhole tool uses an ultrasonic transducer with axial rotating-scan measurement and two sets of centralizers at top and bottom. The acquired pixels are processed by the CPU and uploaded to the surface electronics in real time; the surface electronics then sends the data into the computer via a network port for image display.
Specification
| Parameter | Fracture Dip (°) | Fracture Azimuth (°) | Caliper (mm) | Fracture Resolution |
| Range | 0~90° | 0~360° | 60~400 mm | 0.5 mm |
| Accuracy | ≤0.2° | <±3° | ±1 mm | — |
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