The assessment of sea water composition change under the action of drilling cuttings
The article deals with the change of sea water composition under the action of drilling cuttings models which are formed during drilling with the use of water and oil drilling solutions for further modeling and prediction of drilling waste influence on the ecosystem. The experimental modeling of pollutants spreading in water depth was carried out under the the imitation of The Black Sea natural conditions. It is found out that during the contact of the neutralized drilling cuttings both on water and oil basis with sea water, toxic components are leached to the water. The concentrations of these leached components are considerably higher than values of fishery maximum concentration limits. Integrated migration of the leached toxic elements in sea water was calculated. The risk of the water area pollution as a result of the neutralized drilling cuttings direct dumping into the Black Sea was investigated.