Nine component DAS acquisition on experimental multi-component sensors

Newell Count Field Research Station (FRS) in September and October of 2024 to gather test data from two experimental fibre configurations designed to sense multiple components of the elastic wavefield at local points along an otherwise standard trench or borehole deployment. P-, SH-, and SV- Vibe and weight-drop sources were recorded on three-component downhole geophones in an observation borehole, on the main fibre loop at the FRS, and on the two sensors, referred to as the Pretzel and the Croissant. These data will permit research to be carried out to understand (1) how standard single-component DAS data may be augmented to support elastic inversion, and (2) how sparse acquisitions can be optimally designed for low-cost monitoring, in both cases without adding new hardware or infrastructure. Several future studies are planned, including a partial repeat of a time-lapse VSP experiment during a single CO2 injection cycle, and source and receiver comparisons. This abstract describes the experimental fibre sensors, the 2024 seismic surveys, and provides a preliminary look at the distributed acoustic sensing (DAS) data acquired on the multi-component fibre sensors.