READ: In drilling operations, drilling fluids are prone to be deteriorated by pollutions of H2S, plaster, brine, CO2, etc., exposing drilling safety to great risks and elevating the costs. As the mud attributes to successful drilling operations, environmental problems should be emphasized. Now, lets discuss about causes and solutions of mud-related pollutions. In drilling operations, drilling fluids are prone to be deteriorated by pollutions of H2S, plaster, brine, CO2, etc., exposing drilling safety to great risks and elevating the costs. As the mud attributes to successful drilling operations, environmental problems should be emphasized. Now, lets discuss about causes and solutions of mud-related pollutions. I. How does the mud pollute? 1. On one hand, its difficult organic chemicals wil