EGU22-5392
https://doi.org/10.5194/egusphere-egu22-5392
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

4D physics-based pore pressure monitoring in the shallow subsurface of Groningen, the Netherlands

Eldert Fokker1,2, Elmer Ruigrok1,2, Rhys Hawkins1, and Jeannot Trampert1
Eldert Fokker et al.
  • 1Utrecht University, Earth Science, Utrecht, Netherlands (e.b.fokker@uu.nl)
  • 2Royal Netherlands Meteorological Institute, R&D Seismology and Acoustics, De Bilt, the Netherlands

We previously developed a physics-based model relating changes in pore pressure and vertical stress to seismic velocity variations and validated the model in a small area of Groningen gas field. Using the entire Groningen seismic network, near-surface velocity changes are estimated over a three-year period, using passive image interferometry. Using our developed model, we invert these observations of velocity change for pore pressure variations as a function of space and time, and thus we construct a 4D pore pressure model for the shallow subsurface of Groningen. Pressure-head recordings in the southeastern region of Groningen allow us to calibrate our inference tool.

How to cite: Fokker, E., Ruigrok, E., Hawkins, R., and Trampert, J.: 4D physics-based pore pressure monitoring in the shallow subsurface of Groningen, the Netherlands, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-5392, https://doi.org/10.5194/egusphere-egu22-5392, 2022.

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