GeoVista Borehole Equipment for Geotechnical Applications


Site Investigation

Construction

Engineering

Subsurface


Field Proven & Reliable

Real Time Data

Cheaper the coring

Rock Strength

Fracture Analysis

Column Integrity

Engineering Works

Dewatering

Safety

Save Time & Money

 

 

Understanding the sub-surface for new construction and geotechnical applications is imperative for successful and safe project completion. GeoVista supply portable and reliable equipment to acquire data from the subsurface to better understand the rock mechanics, strength and location of fractures. Often, this can be cheaper and faster then coring. GeoVista equipment is used worldwide as part of large construction projects such as dams, tunnels, engineering foundations, offshore wind farms and power stations.

 


 

Common tools for Geotechnical applications

 

Gamma and Spectral Gamma Probes

  • A range of different Gamma probes including: Natural, Spectral, Filtered & GM probes for different ore objectives.
  • Lithology & Bed Boundaries
  • Geological correlation & fault determination

DPS – Downhole P&S Logger

  • Rock strength and elasticity
  • Engineering work
  • Acquires formation compressional and shear wave velocity

Formation Side Wall Density with Caliper

  • Lithology and ore-body identification
  • Quantitative Density
  • Bed Boundaries
  • Calculated Density Porosity
  • Borehole Diameter

Trisonde – 2pi Gamma-Gamma Probe

  • Lithology and ore-body identification
  • Qualitative Density
  • Bed Boundaries

Compensated Neutron Sonde

  • Quantitative Porosity
  • Lithology Identification & Shale Content
  • Aquifer location & Engineering
  • Coal fracture analysis

Neutron-Neutron Sonde

  • Qualitative Porosity
  • Lithology Identification
  • Aquifer Quality and Gas zone identification

Resistivity Probe (DLL3 Focused Short, Long and SP)

  • Lithology, Ore body thickness, and source rock identification
  • Bed Boundary and Facies changes

EM Induction Probe

  • Ore Body Identification
  • Lithology
  • Hydrocarbon indication and formation water salinity

Caliper Probes (2, 3-arm and 4-arm versions)

  • Structural borehole measurement & Borehole Volume
  • Engineering work and casing evaluation
  • Physical location of washouts, cavings, faults, fractures and changes in borehole dimensions
  • Explains/confirms changes in geophysical logs

Borehole Inclinometer Probe or Verticality Probe

  • Borehole deviation
  • Drift and TVD
  • Azimuth (with Verticality probe)
  • Confirmation of drilling work through surveying

North Seeking Fibre Optic Gyro

  • Borehole deviation
  • Drift and TVD
  • Azimuth
  • Confirmation of drilling work through surveying
  • Staying on target while drilling

Full Wave Form Sonic Probe

  • Cement Bond Log
  • Formation velocity
  • Engineering investigations
  • Sonic Porosity
  • Characterization and Rock Strength
  • Surface seismic correlation
  • Rock strength, elasticity, porosity

Optical and Acoustic Televiewers

  • Deviation
  • Fracture Identification, orientation & structural information
  • Breakout analysis and thin bed detection
  • Bedding dips and lithology analysis