Increasing the level of environmental safety of drilling sludge storages

The main sources of soil pollution due to the development of oil and gas fields are analyzed. It is shown that the main sources of oil products entering the soil are sludge accumulators and drilling barns. A new construction of a drilling barn and a scheme of reclamation of the existing ones are proposed. The implementation of such developments will minimize the ingress of oil-containing fluids into the soil and increase the level of environmental safety of oil and gas development processes.

Nodule bacteria in the remediation of soil contaminated by drilling waste

The paper studies the possible application of salt-tolerant strains of nodule bacteria such as 340b, 348a, 1360, 367a, 363a, 375a for clover and lupine in bioremediation of the soil contaminated by drilling waste in the Tyumen Region. Chemical composition of drilling sludge at the Nivagal’skoe oil field in KMAO (cluster No 924) was determined using XRF analysis, eight types of salinization wereidentified: MgSO4, Na2SO4, NaCl, NaHCO3, Na2CO3, sulfate-soda, sulfhate-chloride, and gypsum. Laboratory studies on nodule bacteria survival were carried out. Inhibiting influence of most salinization types was found, however, all samples have shown positive survival. Moreover, increaseof essential nutrients in the soil was noted. These results indicate that the application of given strains in the remediation of soil contaminated by drilling waste- is possible.

ORGANIZATION AND MANAGEMENT OF CONSTRUCTION IN THE OIL AND GAS SPHERE WITH RESPONSIBLE ENVIRONMENTAL SAFETY

The article outlines the issues of organization and management in the oil and gas complex, describes the features of work during the construction of oil and gas wells, including the construction of drilling sludge accumulators, indicates the disadvantages of sludge collectors, leading to environmental pollution, suggests the use of rolled concrete for the environmental safety of an object of increased risk.