Objective: to analyze the effect of non-toxic components on physical andchemical characteristics of drilling fluids. Methodology: determination of physical characteristics (density, plastic viscosity, yield point, effective viscosity, gel strength, water cut, mud cake thickness), determination of chemical characteristics (ph). results: threeиdifferent drilling fluids were prepared, their physical and chemical characteristics were studied, a Comparative analysis was carried out, the impact on the marine ecosystem was assessed. Conclusions: the considered drilling fluids are competitive with others fluids used in well construction in terms of their physical and chemical properties, also the less damage to the environment is expected.