Borehole Logging
Borehole Scintillation Radiometer SRP-20
Main Features:
- Fast assessment of rocks’ natural radioactivity
- High sensitivity of measurements
- Portable and easy to use
- Adjustable averaging window
- Supplied with control source (Co-60)
Why SRP-20?
- Borehole radiometer SRP-20 includes both probe and control unit, making it an all-sufficient system for gamma-ray logging
- Waterproof detection unit of borehole version can be used in dry or liquid-filled boreholes with any types of casing (or without it)
- Waterproof control unit
- User-friendly interface and simple operation
- Built-in Bluetooth and USB enable real-time data visualization on a PC or smartphone (tablet)
- The instrument can be supplied with a well logging rod feeder system and a set of rods for use in various types of wells and drillings
- Adjustment of time averaging window enables stable data recording on low-level anomalies and provides immediate response during quick scanning
- Detection unit can be manufactured for placing in boreholes deeper than 300 m upon request
- Easy-to-use pointer indicator equipped with a stepper motor eliminates oscillations caused by measuring console movement
- Indicator backlight provides comfortable measurements under any conditions
- Rugged transport case, Co-60 control source, and high-quality open-type headphones included
Areas of SRP-20 Application:
- Radioactive/non-radioactive ore exploration
- Lithology studies in boreholes
- Identification and refinement of reservoir intervals (oil and gas-saturated formations)
- Tying to depth during perforating operations
- Determination of clay content and fracturing of rocks
Package Contents:
- Logging probe
- Measuring console with built-in battery
- Charger
- Headphones
- Control source (Co-60) in a container
- Rugged Case
- Reel with slip ring
- Well logging rod feeder system with rods (optional)
Specifications:
| Specification | Value |
|---|---|
| Measurement range of exposure dose rate of gamma radiation | 0 ÷ 3 000 mcR/h |
| Fundamental error of measurement of exposure dose rate of gamma radiation of 226Ra radionuclide | no more than ±15% (not standardized in the measurement subrange 30 mcR/h) |
| Measurement range of the average count rate of recorded gamma | 0 ÷ 10 000 s-1 |
| Fundamental error of measurement of average count rate of recorded gamma | no more than ±10% |
| Energy range of detecting gamma | 35 ÷ 3 000 keV |
| Variation limit of averaging window | 1 ÷ 20 s |
| Setting time of operating mode | no more than 1 min |
| Power supply voltage | 12.5 ± 2 V |
| Average power | 0.9 W |
| Life time of power supply | no less than 25 h |
| Operating temperature range | -40 ÷ +50 ˚С |
| Dimensions (detection unit) | 36 × 1010 mm |
| Dimensions (measuring console with power supply) | 200 × 90 × 145 mm |
| Interfaces | USB, Bluetooth |
| Weight (detection unit) | 2.5 kg |
| Weight (measuring console with power supply) | 2.6 kg |
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