About Borehole Camera
The rotary downhole camera is professionally developed for hydrogeological engineering and borehole inspection. It is widely used to detect borehole anomalies and geological defects, including borehole wall cracks, pipe misalignment, well collapse, filter pipe blockage and sand outflow positions. Suitable for well maintenance, oilfield inspection, geological freezing holes, geological exploration, geotechnical engineering and construction quality inspection.
Main Features
- Ultra-high resolution color imaging
- Stable operation in low-light environments
- Built-in underwater LED lighting
- Aluminum alloy control box equipped with a 12-inch large LED screen
- Military-grade fully watertight cable
- Deep-water deployment capability with strong high-pressure resistance
- Equipped with a 79 mm 360° rotary probe for clear and intuitive borehole observation
- Matched with electric motor winch and communication cable for simple operation
- Integrated waterproof, high-pressure resistant and high-temperature resistant performance
- Real-time high-definition color images and videos provide reliable data for downhole fault analysis and maintenance
- Ideal for borehole maintenance and repair, enabling fast, accurate detection of borewall abnormalities and defect locations
Product Advantages
- Versatile power supply: The main control box supports DC 12 V, AC 220 V and AC 380 V power input, with ultra-low power consumption of only 20 W.
- Lightweight and portable design: The electric winch adopts an automatic brake structure, featuring compact size and durable performance.
- The stainless steel 360° rotary probe features exquisite craftsmanship, excellent waterproof, high-pressure and high-temperature resistance.
- High stability and reliability: Equipped with high-quality electronic components and solidified program modules, it reduces discrete circuit failures and greatly improves system stability.
- The rotary probe is fitted with 18 to 24 high-power LED beads with intelligent dimming function. The cold light source ensures soft and uniform illumination for clear underground imaging.
- The stainless steel probe supports vertical lifting and full 360° free rotation, allowing pause at any angle for detailed observation. After strict factory pressure testing, the probe withstands a maximum working pressure of 25 MPa and supports deep-water detection up to 3000 m without water seepage. Adopting high-strength tempered steel glass, the lens is anti-breakage and highly durable.
Multiple detection depth configurations are optional according to working pressure and cable requirements: 50 m, 100 m, 200 m, 300 m, 400 m, 500 m, 800 m, 1000 m, 1200 m, 1500 m, 2000 m.
Camera Probe Technical Parameters
| Item | Specification |
| Imaging Sensor | Sony 1/3-inch industrial wide dynamic high-speed camera |
| Horizontal Resolution | 1200 TVL |
| Video Format | PAL |
| Minimum Illumination | 0.001 LUX / F1.2 |
| White Balance | Automatic |
| Backlight Compensation | HLC (Highlight Compensation) |
| Operating Voltage | DC 12V ± 5% |
| Optional Probe Sizes | • Rotary probe: 79 mm, 60 mm • Wide-angle probe: 80 mm, 50 mm, 40 mm |
Main control box
* Aluminum Alloy Control Box
* Depth Interface: Connect the depth sensor
* Probe Interface: Connect the probe, transmit video and power
* Data Interface: Can be written into well location, well number, can be self-calibration depth
* Video System: 8G SD Card Video System
* Depth Zero: Please return the depth to zero before logging, so that the counting is accurate.
* Monitor: 12” High Brightness LED Monitor, 210*310mm, Outdoor Visual, Screen resolution 1027*768* Expansion Interface: Video Capture Expansion Interface
Winch
* Electric Winch: control the speed and probe lift by the control button of the main control box
* Down hole Pulley: Down hole pulley has the function of depth counting, but need the data line to connect the main control box to use
* Motor: Permanent Magnet DC Motor
* Winch: Iron Ram Stamping Wire Disc Motor
* Split Docking Probe: Easy to exchange the probes of different size and specification.
Communication Cable
* Cable Material: Custom Logging Cable
* Bearing: 260KG
* Outside Diameter: 8 mm
* Temperature Tolerance: 65º
Rotation Camera Probe (optional for various diameter probes)
* Camera Size: Φ65mm(Φ50mm wide angle camera Optional)
* Camera Material: Zinc-coated, 304 Stainless Steel optional
* Camera Window: Explosion-proof Optical Acrylic Glass Or Explosion-proof Glass Window
* Camera Pixels: CCD Camera, 1200 TVL High-definition Low-light
* Lens Angle: Side 360°
* Camera Light: Φ79mm dual camera, bottom camera has 6 lights, side camera has a luminous surface. Φ50mm wide angle camera, 6 or 9 lights
* Brightness Adjustment: Front and rear lamp beads, can adjust the brightness of the light source through the button in the control box, five-level dimming.
* Probe Pressure: 1500m, Pressure 15Mpa
Camera Rotating Probe Box
* Down hole Pulley: Down hole pulley has the function of depth counting, but need the data line to connect the main control box to use
* Depth Counting Function: With Japanese Omron depth sensor, the depth display reaches millimeter
Manual Automatic One-Piece Vertical Detachable Winch
* Hand-in-one vertical detachable winch: 220V / battery power supply (0-600 available battery function)
* Control box manual control cable lift and speed
* Main control tray: Stainless steel tray, detachable, easy to transport
* Depth counting pulley: the lower pulley has a depth counting function, which requires the data cable to be connected to the main control box.
* Pulley support rod: Retractable pulley support rod, detachable.
* Depth counting function: the depth is accurate to 0.005 meters, if there is an error, the depth can be calibrated
* Depth to zero: Zero the depth before logging so that the count is accurate* Motor: permanent magnet DC motor, self-locking
Display
* 12 inch LED monitor
* Aspect ratio: 4:3
* Contrast: 450:1
* Brightness: 800cd/m2
* Resolution: 1027 × 768
* Power DC 12V,220V ,380V* Color system: PAL/NTSC/SECAM
