The need, consumption, and extraction of oil, coal, and gas is contrary to each other’s. The prime source of all power generation the world needs and relies on today, comes from petroleum resources but the extraction and production of the same doesn’t fall on the same page. The polluting agents produced by the drilling and production operation of are not negligible. This thesis addresses the evaluation of the environmental impact associated with variations in drilling fluid rheology and assesses the efficacy and sustainability of different cuttings disposal methods. Drilling fluid, a vital component in the drilling process, influences wellbore stability, lubrication, and the overall efficiency of drilling operations.