Baseline DAS VSP acquisition at the Meadowbrook Carbon Storage Hub

Kevin W. Hall, Kevin L. Bertram, Khalid Abdulrahman, Kristopher A. Innanen

Bison Low Carbon Ventures invited CREWES to participate in a baseline seismic program in late October 2025 at the Meadowbrook Carbon Storage Hub, just north of Edmonton, Alberta, Canada. Our role was to monitor optical fiber in the injection well using Distributed Acoustic Sensing (DAS) to produce a walk-away Vertical Seismic Profile (VSP) dataset for Vibe Points (VP) that were being acquired during a surface seismic program.

DAS data was acquired overnight to help characterize background noise and for future use in developing event detection algorithms, as well as during active seismic acquisition. Uncorrelated source gathers were extracted from the continuous data for each VP in the program. After depth registration, correlated and uncorrelated source gathers were stored as SEG-Y files for future work.

The source gather closest to the injection well was processed to VSP stack and corridor stack traces. A synthetic seismic trace was created using well logs and a wavelet extracted from the NMO corrected up-going P-wavefield. The VSP stacks compare well to the synthetic seismic, showing that we can interpret seismic reflections from below the end of fiber with seismic acquired using a single Vibroseis sweep at this site