Geotech Mastehead


Geophysical Equipment

Geotech Gamma Ray Logger

Geotech Gamma Ray System

The Geotech Gamma Ray System is used in exploration for uranium, potash and base metals as well as for petroleum and groundwater. The system identifies lithologies and stratigraphic correlations in boreholes, cased or uncased, liquid or air filled. For petroleum and groundwater exploration, the system provides information on the sequence of rocks in the borehole, and it can also be used to locate non-radioactive minerals such as coal.

  • Measures the total gamma ray radiation emitted by uranium, thorium or potassium-40 present in the subsurface strata
  • Portable and hand-operated
  • Measured data points are taken in intervals and then plotted on logging forms for graphic presentation and interpretation
  • The probe is 1.5" O.D. x 28" (70cm x 3.8cm) in length, constructed of stainless steel
  • Can be used in combination with the Borehole Resistivity System for a more precise determination of subsurface lithology

Call 1-800-833-7958

Geotech Gamma Ray System Specifications
Geotech Gamma Ray System Manual

Geotech Borehole Resistivity System

Geotech Borehole Resistivity System

The Geotech Borehole Resistivity System is a rugged, portable, hand-operated downhole logger which
measures both apparent resistivity and the natural self-potential (SP).

Applications include mineral exploration, subsurface mapping (isopachs), locating fresh and salt-water bearing information; lithologic and structural correlation between wells, and well construction.

  • Measures both resistivity and self-potential (SP)
  • Resistivity is read in a range of 0-10,000 ohm-feet
  • Self-potential is read in a range of 1-1,000 millivolts, positive or negative
  • Battery powered readout instrument, and indicator for resistivity and SP in a rugged water tight case
  • 500 feet (152m) of four-conductor downhole logging cable mounted on a portable hand reel
  • 1" (2.5cm) diameter probe assembly
  • Two-single conductor insulated surface lines
    on storage reels

Call 1-800-833-7958

Geotech Borehole Resistivity System Specifications
Geotech Borehole Resistivity System Manual

Geotech Sand Shaker

Geotech Sand Shaker
Portable Handheld Sieve
Grain-Size Analyzer

The Geotech Sand Shaker is a manual sieve kit designed to provide reliable grain size analysis. It features 20 stainless steel screens ranging in size from US sieve No. 4 to 270. The sample is placed into the top of five clear acrylic cylinders, shaken to distribute particles, and volumetric percentages are indicated on the Shaker frame for quick and accurate gradation.

  • Improved frame design for easier operation
  • Lightweight and portable
  • 20 interchangeable sieves with stainless steel mesh and edging
  • Indication of volumetric percentages on the
    shaker frame
  • Clear acrylic cylinders
    2" (5 cm) I.D. and 1.85" (4.7 cm) long
  • ABS plastic frame
    4" (10 cm) I.D. and 14.5" (37 cm) long

Call 1-800-833-7958

Geotech Sand Shaker Specifications
Geotech Sand Shaker Manual

Enviro Data Graph Display

Enviro Data Map Display

Enviro Data®
Data Management Software

Enviro Data is a flexible, easy-to-use program designed for managing and displaying site environmental data. It uses Microsoft® Access® as a front-end user interface and any ODBC-compliant database such as Access®, SQL Server® or Oracle® as a back-end database server. The open system based on industry standard software allows program modification for specific project requirements. It is available with Single Use or Concurrent Use licensing.

  • Plan your sample events
  • Manage field and lab data
  • Track water, soil, air, etc.
  • Centralize data storage
  • Enforce data integrity
  • Verification and validation
  • Graphs and maps
  • Reports and limits
  • Access® front-end
  • Access®, SQL Server®, or Oracle® data storage
  • Inexpensive to buy
  • Easy to learn and use
  • Best support in the industry!

Call 1-800-833-7958

Enviro Data® Specifications

Enviro Spase Screen

Enviro Spāse
Display & Analysis Software

With Enviro Spāse you can incorporate your data's spatial component into effective, attractive and informative GIS displays with a minimum outlay of time and maximum accuracy.

Create a single-user or company-wide integrated database and GIS system that is central to all your site data workflow applications – from the field and lab to the regulators.

  • Easily map your data
  • Customize your displays
  • Display supporting data
  • Create sophisticated graphics
  • Highlight important information
  • Use with Enviro Data® or any database

Call 1-800-833-7958

Enviro Spāse Specifications



Geotech 40th Anniversary


2650 East 40th Avenue
Denver, Colorado 80205

Other Locations
North Carolina

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