Innovating to better characterize: the evolution of combined seismic at Geostack
- Martin Blouin
- Apr 10
- 2 min read
Over the past few years, Géostack has undertaken a major transformation of its seismic acquisition methods for site characterization. Thanks to the introduction of autonomous wireless technologies, we now offer services that are more efficient, accurate, and tailored to the diverse needs of our clients.
Our approach allows in a single acquisition to obtain the information necessary to analyze seismic refraction, MASW2D and seismic reflection, with a constant concern to optimize the quality and speed of operations in the field.
Systems adapted to all terrains
1. Landstreamer with 3-component wireless geophones
For roads, trails and passable areas, we have developed a landstreamer system, equipped with 3-component sensors, the GCL-3 from the company Geospace . This device allows us to carry out up to 3 km of measurements per day in ideal conditions with a single team of 3 people.
Unlike our old cable system:
Deployment is faster and more flexible.
The spacing between sensors is adjustable depending on the geological context and the project objectives.
The three components (vertical, transverse and longitudinal) are recorded systematically, without additional cost or lengthening of acquisition time.
This tri-axial capacity significantly improves the robustness of the data and the quality of the interpretations.
2. Stryde Standalone Accelerometers
For non-driveable areas, the addition of hundreds of Stryde autonomous accelerometers in fall 2024 has opened up new possibilities:
High measurement density with long offsets
Lighter and faster deployment
Reduced environmental footprint
Continuous recording promoting the use of passive seismic technology
Flat spectrum and good response down to 1 Hz, ensuring exceptional data quality even at low frequencies
Their reduced weight also makes them easier to transport to remote areas.
More efficiency for better interpretations
Data acquisition is often a bottleneck in larger projects. By combining these new acquisition approaches with:
accelerated data processing via automated routines, and
interpretations consolidated by combined seismic,
Today, we are better equipped than ever to offer high-quality seismic services, while controlling costs and deadlines.
These innovations are part of our mission to democratize access to geophysical methods and their integration into site characterization projects.
At Geostack, we pride ourselves on providing our clients with more efficient campaigns that are better adapted to their geological challenges and respect the environment.
