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НАК „НАФТОГАЗ УКРАЇНИ“. Річний звіт англійською (2017 рік) - 13
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2.6 mcm have been withdrawn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