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We investigate the dynamical interaction and merging of Milky Way like galaxy with low mass satellites(mass ratio~1:10 and lower).We start our simulations with the exponential initial radial distribution of heavy elements in the galactic disk and use the high performance N-body TREE-GPU code that runs on our different GPU clusters.Running the large set of models with different satellite masses and initial positions we find that in case of merging satellite with mass less then 109 M⊙(galaxy mass ratio 1:70)there is no significant chemical abundances changes in all considered range of galactocentric distances.We also found no evidence that observed oxygen abundance gradient flattening in some of the disk galaxies can be caused by dynamical effects after merging with low mass satellite.But minor merging process,in our point of view,can significantly increase the abundance mixing and contribute to other mechanism which reduce radial abundance gradient slope in such a disk galaxies.