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:

SpecificationValue
Measurement range of exposure dose rate of gamma radiation0 ÷ 3 000 mcR/h
Fundamental error of measurement of exposure dose rate of gamma radiation of 226Ra radionuclideno more than ±15% (not standardized in the measurement subrange 30 mcR/h)
Measurement range of the average count rate of recorded gamma0 ÷ 10 000 s-1
Fundamental error of measurement of average count rate of recorded gammano more than ±10%
Energy range of detecting gamma35 ÷ 3 000 keV
Variation limit of averaging window1 ÷ 20 s
Setting time of operating modeno more than 1 min
Power supply voltage12.5 ± 2 V
Average power0.9 W
Life time of power supplyno 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
InterfacesUSB, Bluetooth
Weight (detection unit)2.5 kg
Weight (measuring console with power supply)2.6 kg

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