Microbiological waste decomposition in drilling pit at the oil-gas-condensate fields

The article considers microbiological processes in drilling mud pits in the result of keeping in storage solid and liquid drilling mud wastes in them. It was proved that in the result of microorgans activity in the pit toxic biogases are formed-hydrogen sulfide, methane, carbon dioxide. In some cases these processes advanced sulfate access from the well and continued up to gas saturated productive formations opening. The usage of bactericides, such as cuprates, potassium bichromate, paraform and etc, inhibits microorgans activity and first of all SRB, which produce hydrogen sulfide in anaerobic conditions. In the result of microorgans inactivation environmental contamination is prevented