Borehole Scintillation Dadiometer SRP-20
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)
Borehole scintillation radiometer SRP-20 − the most advanced version of well-known logging radiometers SRP-97K and SRP-68-02/03 and their analogue in terms of functionality and application. The device is designed to conduct gamma-ray logging in wells up to 300 m depth and drillings. The borehole and hand-held (analogue of SRP-68-01, SRP-88 and SRP-97) versions are in series production.
When conducting gamma-ray logging, a continuous curve or chart is recorded, which displays the intensity of gamma radiation in µR/hr. Due to natural absorption by host rock, ionizing radiation from rocks and objects within a radius of up to 30 cm from the scintillation detector is recorded.
Why SRP-20?
- Borehole radiometer SRP-20 includes both probe and control unit, so that it becomes all-sufficient system for gamma-ray logging
- Waterproof detection unit of borehole version can be used both in dry / filled with liquid boreholes and 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 in order to use the probe in horizontal, inclined, and ascending wells and drillings
- Adjustment of time averaging window enables to record stable data on low level anomalies and provides immediate response during quick scanning
- Upon request, the detection unit can be manufactured for placing in a more than 300 m deep boreholes
- Easy-to-use pointer indicator equipped with a stepper motor eliminates oscillations caused by measuring console movement
- Indicator backlight provides comfort measurements at any conditions
- Rugged transport case, Co-60 control source and high-quality open type headphones
Areas of SRP-20 application:
- Radioactive / nonradioactive 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 (optionally)
| 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 |
| - measuring console with power supply | 200 × 90 × 145 mm |
| Interfaces | USB, Bluetooth |
| Weight | |
| - detection unit | 2.5 kg |
| - measuring console with power supply | 2.6 kg |