Raw and reconstructed time series data of X-ray tomographic microscopy (XTM) on drainage in a porous medium, with flow-tracing microparticles in the non-wetting phase (oil) while the latter displaces brine from the pores (dataset 073). Additionally, raw and reconstructed X-ray tomograms of the sample before the experiment are provided, in dry state (dataset 064) and brine-satured state (dataset 065). All reconstructed datasets are provided both with Paganin phase retrieval (in 8 bit format) and without (in 16 bit format).