Distributed Acoustic Sensing (DAS)
Unlock cost‑effective seismic insight for site monitoring with industry‑leading DAS processing, imaging and 4D workflows.
As industry leaders in imaging fiber optic DAS data, we leverage experience from more than 50 2D, 3D and 4D DAS projects, partnering with operators to turn fiber‑optic cables into high‑fidelity seismic arrays, delivering reliable data, rapid monitoring and actionable subsurface intelligence across energy, carbon storage, geothermal, mining, defense, and infrastructure projects.
We are uniquely positioned to realise the full value of DAS across all acquisition geometries and monitoring objectives. Our global imaging teams combine deep DAS expertise with best-in-class inversion, advanced algorithms and geoscience-tuned HPC power to turn fiber‑optic data into high‑impact subsurface insight.
Clearer data and stronger models for faster interpretation
Our teams combine advanced DAS algorithms, integration with Full‑Waveform Inversion (FWI), and scaled HPC to handle the largest datasets and the most challenging geology.
What sets us apart
- Proven expertise across 2D, 3D and 4D DAS projects in wells, on land, on the seabed and using repurposed dark fiber
- Best-in-class, robust Elastic FWI and Imaging workflows that can be directly paired with DAS to improve velocity models, maximize data potential and enhance 4D interpretability
- HPC infrastructure tuned for large seismic and DAS processing workloads
Learn more about the value of DAS in subsurface imaging and monitoring from Viridien expert Kunpeng Liao in a recent EAGE webinar.
Distributed acoustic sensing in real-world settings
Discover how DAS is being applied to deliver scalable seismic imaging and repeatable monitoring across a range of environments.
What is distributed acoustic sensing
DAS turns standard optical fiber into a dense seismic sensor array. An interrogator measures minute strain changes along the cable as seismic waves pass, producing rich data suitable for full wavefield imaging and monitoring. Because the fiber is permanently fixed, DAS behaves like a PRM‑style system, enabling cost‑effective, reliable time‑lapse monitoring with excellent repeatability. The same fiber can be used for both active surveys and continuous passive seismic recording, and deployment is rapid, using existing telecom or power cables, or purpose‑laid surface, seabed, or borehole fiber.
Fiber cable options are installed either in-well or on the surface/seabed:
Fiber installed in a borehole, outside casing, on tubing, or free‑hanging in the well to deliver high‑fidelity 2D/3D imaging away from the well (whether vertical or deviated) and demonstrable 4D changes when repeated
Low‑impact cable layouts (temporary or permanent) enable 2D/3D imaging onshore and offshore. Dark fiber or seabed fiber can be reused for monitoring
Request a DAS presentation
From feasibility and acquisition design through processing, imaging, FWI integration and interpretation, we provide a complete, technology‑led service.
Discuss your monitoring objectives with our experts. We’ll tailor a short session to your subsurface setting, available deployment options, whether in‑well, seabed or surface, and data ambitions (active, passive, or both).
