Seismic Applications

Seismic Applications

Geophysics with a DAS seismic sensor array

Advantages of a DAS seismic sensor array over conventional geophones for surface and borehole applications:

  • Faster deployment
  • Large, low cost seismic sensor arrays
  • Cheaper acquisitions
  • Denser spatial sampling
  • Higher fold
  • Non-aliased wavefield
  • Deployable in sensitive/hazardous areas
  • Pre-existing fiber optic cables usable (dark fiber)
  • Larger acoustic bandwidth
  • Repeatable surveys for long term operations
  • Cost effective permanent monitoring

Near-Surface Geophysics / Geotech

Distributed acoustic sensing for geophysical and geotechnical applications offers multiple advantages over conventional geophone acquisitions. The increased seismic sensor density combined with the broad acoustic sensitivity and relative low-cost per sensor means affordable high-resolution surveys are now a reality.

The patented design of the Treble DAS interrogators provide users with ultimate flexibility and sensitivity for these applications. Configurable acquisition parameters, dense channel spacing, unmatched high frequency sensitivity for resolving shallow structures, and native save formats that increase sensitivity to broad side wave arrivals. These are some of the features that make Trebles the leading interrogators for near-surface geophysics.

Mine Site Geophysics

Minesites are often harsh environments that produce large amounts of vibrations which translate to strong ground motion. These vibration sources are plentiful and intense, but more importantly they help with the characterisation of the surrounding rock-mass.

Treble DAS interrogators minesite implementations:

  • Precondition monitoring
  • Microseismic monitoring
  • Borehole geophysics
  • Hydraulic conductivity
  • Active and passive seismic tomography
  • Blast monitoring
  • Vibration monitoring
  • Timelapse TSF monitoring
  • 2D and 3D surface reflection seismic

Why choose us?

  • Industry leading low instrument noise at microseismic frequencies.
  • Native save formats include strain rate and velocity
  • Native velocity (gauge free) offers industry leading broadside sensitivity
  • Compatible with single-mode, multi-mode or engineered fibers
  • Software configurable pulse and gauge length
  • Optical interrogator and server integrated in one device
  • Access to open API for solution integrators
  • Industry first patented Treble DAS interrogator design, using proprietary and next generation distributed acoustic sensing technology