JJY-3D Three-Arm 500m 1000m 2000m 3000m Borehole Logging Equipment Diameter Liquid Level Geophysical Well Logging Equipment Borehole Logger
JJY-3D 3-Arm Caliper
Probe Functionality
The 3-Arm Caliper tool creates an uninterrupted record of borehole diameter through three mechanically linked arms that maintain continuous contact with the borehole surface. This instrument also includes a liquid level detection sensor, enabling it to measure the depth of fluids present within the borehole.
Importance in Hydrological Logging
In hydrological surveys, two key parameters-liquid level depth and caliper measurements-are essential for comprehensive well logging. The 3-Arm Caliper probe provides vital data by continuously logging the borehole diameter while simultaneously measuring the depth of any liquids encountered.
Features & Advantages
1.
Commanded Arm Movement: The probe's motor-driven caliper arms can be extended or retracted based on commands sent from the surface, allowing for efficient entry into the borehole with the arms safely retracted during deployment.
2.
Modular Design: The caliper arms and wear tips are easily interchangeable, facilitating maintenance and customization to suit various borehole conditions.
Practical Uses
•
Rock Structure Evaluation: Ideal for assessing the integrity and stability of rock formations encountered in drilling operations.
•
Detection of Geologic Features: Assists in locating fractures and cavities within the borehole, providing valuable insights for geotechnical analysis.
•
Diameter Logging: Offers precise measurements of the borehole diameter, critical for detailed geological surveys.
•
Volume Determination: Enables accurate calculation of the borehole volume before final completion stages, such as cementation.
•
Enhanced Data Accuracy: Commonly used to apply environmental correction factors to other log data, improving overall measurement precision.
Parameters of Borehole Geophysics Logging
Water Well Logging Equipment, Geo Logging Equipment
| 12bit A/D Conversion, Program-Controlled Magnification |
K=0.5~128 |
| Counting Channel |
f≤500KHz |
| Digital Signal Transmission Frequency |
9600bit/s |
| Power Supply Cycle |
400ms |
| Current |
2mA~500 mA Optional |
| Signal Input Range |
≤±10V |
| Continuous Working Time |
≤24 hr |
| Power Consumption |
<200W |
| Volume |
420×260×210mm |
| Weight |
<7Kg |
| Working Temperature Range |
-10ºC~ +50ºC |
| Working Power Supply |
AC220V±10% 50Hz ±5% |
| Logging Speed |
0~30 m/min Adjustable (as per sampling interval) |
System Composition of Borehole Geophysics Logging
Water Well Logging Equipment, Geo Logging Equipment
| No. |
Name |
Qty |
| 1 |
GDQ-2D Logging System Box |
1 |
| 2 |
Well Logging Probe |
1 |
| 3 |
Logging Winch and Logging Cable |
1 |
| 4 |
Drilling Mouth Pulley |
1 |
| 5 |
Depth Encoder |
1 |
| 6 |
Laptop (Optional) Printer (Optional) |
1 |
The probes of Borehole Logging Downhole Caliper Logging Groundwater Logging Borehole Gamma Logger Water Well Logging System
| Model/ Name |
Parameter to measure |
| JDX-2Dr Resistivity & Gamma probe |
SP, Apparent resistivity, natural gamma |
| JDX-3Dr Combined probe |
16"/64"resistivity, SP, natural gamma, temperature, SPR |
| JJH-2 Res/IP probe |
16"/64"resistivity, SP, IP |
| JCX3-GMD Laterology & Gamma |
Laterology-3 resistivity, natural gamma, SP |
| JCC-2A Three-component magnetometer |
Magnetic Tri-component |
| JCH-2 Magnetic susceptibility probe |
Susceptibility |
| JWY-1 Temperature & Fluid resistivity |
Temperature, fluid resistivity |
| JWL-2W Flow Combined probe |
Temperature, water level, flow |
| JJX-3DA High precision inclination probe |
Vertex angle, azimuth |
| JJY-3D Three-arm caliper |
Diameter, liquid level |
| JSS-3 Sonic probe |
Travel-time, Equation of time, Amplitude1, Amplitude2 |
| JMZD-2D Combined density probe |
Density, laterology,resisitivity, natural gamma, SP, caliper |
| JZZ-3 Neutron & gamma probe |
Natural gamma, porosity |
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