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Book DOI: 10.21467/abstracts.93 With a total length of field pipelines of all types of about 220 thousand km the number of leaks in field pipelines only in 2018 was about 30 thousand or, on average, one leak per 7.1 km. According to the data provided by the Ministry of Energy of the Russian Federation, in 2018 there were 8,126 leakages with oil spills and environmental pollution in the amount of at least 1.0 million tons, of which 7,017 leakages in the oil pipelines (90 %) occurred because of corrosion. The social and economic damage is estimated at about 500 billion rubles. According to the Ministry of Natural Resources and Ecology of the Russian Federation estimation, the replacement of field pipelines should be 7-12% per year (about 20 thousand km), of the total length, and in fact 1-2% (about 3.0 thousand km) is replaced. This creates extremely unfavorable social and environmental conditions in the areas of oil production. The novelty of the proposed solution lies in the discharge of oil-field water directly on the well clusters or at a short distance from them by means of modular water treatment and injection facilities. This decision will significantly decrease the risk of environmental pollution by reducing the volume of pumped liquid, and reduce the load on the main oil treatment facilities and the number of vertical tanks. Electricity consumption for transporting water from treatment units to reservoir pressure maintenance system facilities are also significantly reduced. By discharging associated water near the wells, the length of the pipelines of reservoir pressure maintenance system is reduced from 24.8 km to 13.9 km, and metal consumption is reduced by 44%. Due to the reduced volume of pumped liquid, it becomes possible to replace existing pipes with polymer-metal pipes with a smaller diameter which will significantly reduce the metal consumption of field pipelines and the cost of their repair. The replacement of steel pipes with polymer-metal pipes will reduce the risk of the environment contamination as the low electrical conductivity of polymer materials included in the design of polymermetal pipes eliminates the possibility of stray currents in them and associated corrosion damage to the pipelines. There is no need for an electrochemical protection device, which also reduces the costs of both the proposed reconstruction and subsequent operating costs. The period of trouble-free operation of steel pipelines in aggressive environments is 3-5 years, and the accident rate reaches 30 or more accidents per 1 km per year. Polymer-metal pipes can be safely operated for 20 years or more. To ensure environmental safety it is necessary to have an automated system to control technological processes and technical condition of equipment and pipelines which is part of an automated field monitoring system. The monitoring system will allow to quickly influence technological processes, to control the dynamics of excessive pressure and temperature, the presence or absence of defects and on the basis of received information analysis to predict the occurrence of critical defects as well as the period of troublefree maintenance of pipelines and equipment.

Resource-Saving Technology for the Gathering, Treatment and Injection of Oil-Field Water