Waste management measures
In 2017, Surgutneftegas will continue to be guided by the principles of waste production reduction and drawing waste into production circulation to cut the amount of wastes to be buried.
Given that drill cuttings are the most large-tonnage oil production waste, the Company’s major activities will be carried to reduce its production volume. To this end, in 2017, Surgutneftegas plans to construct well pads using pitless drilling technology with drill cuttings to fill the body of the mound (91% of total number of the facilities under construction). The pitless drilling technology used in the territories with special conservation status and limited business activity, within which geological study is permitted by law (for example, in the “Numto” nature park), will allow the Company, in 2017, to maintain the achieved utilization rate of drill cuttings (over 80%).
For many years, to decontaminate oily sludge and soil, Surgutneftegas successfully has been employing equipment systems which consist of a three-phase centrifuge to effectively perform separation of sludge and recycling of the produced oil and water, equipment for processing solid phases and units for thermal decontamination of processed sludge. The existing specialized systems (one system for several fields) will make it possible, in 2017, to fully decontaminate oil sludge of various viscosities.
Due to lack of the specialized facilities for utilization, decontamination and disposal of production and consumption waste at new fields, in 2017, the Company is planning to complete construction of oil sludge utilization sites at the Vatlorskoye and Fedorovskoye fields and a site for waste disposal, accumulation and decontamination at the Yuzhno-Nyurymskoye field in Uvatsky District, Tyumenskaya Oblast. In 2017, Surgutneftegas is to spend RUB 2,056.2 million on capital construction and reconstruction of facilities for waste utilization, decontamination and disposal, including RUB 1,335.6 million – in Tyumenskaya Oblast (construction of a site for waste disposal, accumulation and decontamination at the Yuzhno-Nyurymskoye field), RUB 701 million – in KhMAO-Yugra (construction of an oil sludge utilization sites at the Vatlorskoye and Fedorovskoye fields) and RUB 19.6 million – in the Republic of Sakha (Yakutia) (extension of the landfill for solid municipal and industrial wastes at the Talakanskoye oil and gas condensate field).
In warm season of 2017, it is expected to decontaminate 20.4 thousand tonnes of oil sludge and drilling cuttings at 6 centers for oil sludge and oily soil decontamination and 3 liquid phase processing lines upgraded with oil sludge phase separation units and 40.6 thousand tonnes of sludge at 10 Szhigatel incineration units for thermal oil sludge decontamination. Thirty three sludge pits of the Company will temporary store all year round oil sludge, drilling cuttings, oil containing fluids and contaminated soil to be further processed and decontaminated.
In 2017, the Company is planning to use 23 Forsazh incineration units for thermal decontamination of solid oily waste (oily waste cloth, fuel filter and other). Waste utilization and recycling activities will be continued in the tire recycling shop. In 2017, Surgutneftegas is to utilize 2.23 thousand tonnes of used casing tires and obtain 0.96 thousand tonnes of crumb rubber which is used for bitumen modification at the Company’s asphalt concrete plants to enhance reliability of the hard crust road surface.
In 2017, the Company will recycle 321.2 tonnes of waste using equipment for shredding and pressing waste paper and cardboard. This will make it possible not only to reduce the amount of waste disposed at the landfill, but also earn a profit on transition of recyclables to consumers.
In 2017, utilization of used oils is to remain at the previous year’s level (over 3 thousand tonnes).
Comprehensive approach to solving waste management tasks facing the Company, technologies and equipment employed allow the Company to maintain low specific factor of waste production and disposal at the level of 2016 (0.012 tonnes and 0.003 tonnes per 1 tonne of produced oil respectively).