Drilling cuttings were added (2.5-15% by mass) to soil and used for growing red clover (Trifolium pratense). The effect of the concn. of Ca, Mg, K and Na in soil on their bioaccumulation inside the biomass was studied. Migration of the metals inside the plant tissues was also evaluated. The addn. of drilling waste to the soil resulted in an increase in the accumulation of Na, K, and Ca both in the overground and underground parts of the plant.