Egg Benchmark: Result mismatch from the paper

[AbrightWay]

Hi,

I'm learning GEOSX through the Multiphase Flow with Wells (Basic Example - https://geosx-geosx.readthedocs-hosted.com/en/latest/docs/sphinx/basicExamples/multiphaseFlowWithWells/Example.html).

To veirfy the results solved by GEOSX, I visualize the well rates of the production wells. Here's what I find confusing: The patterns of oil & water production rates are quite similar to the paper, but the days and rates are totally off.
GEOSX results:

Paper results:

p/s: also, why is the massRate (which is the 'wellRateHistory' of the saved wellRateHistory{i}.hdf5) has a shape of (170,7). I understand that 170 corresponds to 170 timesteps, but why at each time, there's 7 values and we only use the first one out of 7 values, i.e. massRate[:,0]?