Главная Учебники - Разные НАК „НАФТОГАЗ УКРАЇНИ“. Річний звіт англійською (2017 рік)
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OUR RESPONSIBILITY ANNUAL REPORT 2017 197 196 tightness of shut-off valves, pipelines and other GTS equipment using mobile laboratories able to detect and eliminate natural gas leaks in GTS equipment. In 2017, Ukrtransgaz began operating a mobile compressor station which allows, during repairs on the gas pipeline, to minimize the amount of natural gas that is bleeded into the atmosphere and transfer it into a leakproof system. During the first application of the mobile compressor, 1.3 mcm of natural gas was saved. Rational use of water resources The use of water by the enterprises of the company decreased by 30.4% in 2017 compared to the previous year and amounted to 4.42 mcm, with a total water withdrawal of 5.3 mcm. During the year, 1.7 mcm of reverse (sewage) waters were treated. 2.6 mcm have been withdrawn from the surface water sources, which is about 59% of the total used water; the underground water intake amounted to 1.2 mcm (27%); intake from communal water supply was 0.6 mcm (13%), with drainage water of 0.005 mcm (less than 1%). Water intake was for production and technological needs, as well as the drinking, sanitary and hygienic needs of workers. In addition, 9.1 mcm of associated water was produced in the process of extraction of hydrocarbons. During 2017, 325 621 tcm of wastewater was treated at biological treatment plants, 10.7 tcm at physical and chemical treatment facilities, and 88.5 tcm at mechanical sewage treatment facilities. The volume of water used by the enterprises of the group in recycling supply systems in 2017 amounted to 5.04 mcm: • Ukrtransgaz – 32.6 mcm • Ukrnafta – 137.3 mcm • Ukrgazvydobuvannya – 24.5 mcm • Ukrspetstransgaz – 0.04 mcm The volume of water used by the enterprises of the group in the formation-pressure maintenance systems at Ukrnafta amounted to 5.04 mcm. 9.2 mcm of associated water was returned to the underground horizons during 2017: 0.2 mcm of associated water was pumped into wells at the Ukrhazvydobuvannya production facilities and 8.96 mcm at Ukrnafta facilities. The use of this method significantly mitigates the negative impact on surface water objects and groundwater. It partially restores the natural conditions of the areas of subsoil that are provided for use for oil and gas production purposes and contributes to the conservation of land. In 2017, Ukrnafta renewed the embanking of reservoirs and wells (226 items altogether). It replaced, revised, and repaired 373 safety breathing valves of tanks and apparatus, audited and replaced 326 sliding valves on waterways and 29 water meters, and assessed the state of 88 operational columns of oil and injection wells. In addition, the company liquidated and reclaimed 19 oil, earth and other barns and reservoirs. Every year Ukrnafta develops and implements "Measures to Mitigate the Consequences of Long-Term Extraction of Oil and Gas and Reduce Environmental Pollution in Boryslav town". As of 1 January 2018, Ukrnafta had spent UAH 31.4 million on implementation of measures in 2017. This included UAH 1.3 million on monitoring and preventive measures, UAH 15.7 million on repair and isolation works, and UAH 14.2 million spent on exploitation and reconstruction of objects connected with the liquidation of gas pollution of the city, with UAH 0.3 million on research. In 2017, Ukrtransgaz conducted 1527 environmental and heat engineering examinations, which allowed control of compliance of the effective indicators of fuel-using equipment with the specifications in the technical passports and technological regulations. For the purposes of obtaining permit documentation, an inventory of 1835 stationary sources of emissions was conducted. Substantiating materials were prepared and an expert examination of 556 project materials was conducted. Use of water resources by Naftogaz group in 2015-2017, tcm Total water resources used 2015 2016 2017 % 2017 compared to 2016 Total, including*: 7 017.2 6 369.9 4 418.5 -30.4 Ukrtransgaz 708.6 680.3 645.4 -5.1 Ukrnafta 3 081.7 3 361.3 2 650.0 -21.2 Ukrgazvydobuvannya 2 229.2 2 131.5 947.8 -55.5 Ukrtransnafta 171.99 179.1 168.6 -5.9 Waste management The total amount of waste generated at the enterprises of Naftogaz group in 2017 amounted to 210.1 thousand tons, including: • waste of hazard class I – 0.075 thousand tons, which is less than 1% of the total generated waste. Among the class I waste, the most common items are spent fluorescent lamps, lead batteries and accumulators. All class I waste is transported for further environmentally sound disposal to specialized enterprises on a contractual basis. In addition, most companies in the group and the company's head office arranged collection of spent batteries and fluorescent lamps from all interested persons; • waste of hazard class II – 0.4 thousand tons (less than 1%). Among the waste of class II, the most common items are used oils and lubricants (284.1 tons accumulated), and accumulator batteries – 59 tons; • waste of hazard class III – 12.4 thousand tons (about 6%). The most widespread waste of hazard class III at the enterprises of Naftogaz group that emerged in 2017 is spent petroleum products and petroleum products totaling 8098.8 tons. • waste of hazard class IV – 197.3 tons (about 94%). Hazard class IV includes the following main types of waste: drilling sludge (drilled solids, spent drilling mud and drilling wastewater) – 147.2 thousand tons; household mixed waste – 24.1 thousand tons; scrap of ferrous metals – 6.1 thousand tons; automobile tires worked out and damaged – 0.7 thousand tons; construction waste – 0.5 thousand tons; agricultural waste (various) – 0.2 thousand tons and other waste generated mainly via construction, drilling, extraction, transportation, storage and of oil and gas processing facilities. Ukrnafta has all the appropriate permits and equipment for the disposal of hazardous oil- containing waste at its own facilities. Due to the use of special equipment for processing oil slime plants, spent petroleum products, and stable oil emulsions, Ukrnafta utilized *Including other enterprises of the group |