Valhall 4D (2003-2019)

Timeshift calculated from modelled strain using the TOE model show good qualitatively agreement with Timeshift from seismic in period 2003 to 2019 • R-factors calculated from modelled strain and TOE model show ‒ Dependency on strain calculation method ‒ Dependency of using local velocity change versus time shift ‒ Dependency of polar angle • Using one average value for R-factor and local axial strain from geomechanical model shows good agreement with relative vertical velocity change