Surgil ESIA Report - Volume III - EKN

“O’ZLITINEFTGAZ” PC
PFS “Surgil field complex costruction with valuable
components retrieval”
3 ALTERNATIVE DECISIONS ANALYSIS
There is provided in the performance specification for development of “Surgil field
complex construction with valuable components retrieval” PFS, in section I “Surgil field
construction”:
I variant
II variant
- gas production, treatment and transport in volume of 2.0х10 9 m 3 per
year, gas condensate recovery, treatment and transport in volume of 100
thousand tons per year.
- gas production, treatment and transport in volume of 3.0х10 9 m 3 per
year, gas condensate recovery, treatment and transport in volume of 140
thousand tons per year.
Both variants assume to carry out wells production gathering and gas preparation on
the gas complex treatment plant (CGTU) located on the field area. Dry gas and allocated
condensate during gas treatment to supply to the gas and chemical complex (GCC) located
in Akchalak settlement or the Kungrad town.
There are considered two variants of the location GCC in section II of “Gas and
chemical complex construction” project: in the region of Akchalak settlement and in the
region of Kungrad town (Ravshan). Therefore, there are allocated sub-variants of the
finished goods transport:
Iа variant
Ib variant
IIа variant
IIb variant
- GCC capacity for raw gas processing in volume of 2.0х10 9 m 3 per year
with location in the region of Akchalak settlement;
- GCC capacity for raw gas processing in volume of 2.0х10 9 m 3 per year
with location in the region of Kungrad city;
- GCC capacity for raw gas processing in volume of 3.0х10 9 m 3 per year
with location in the region of Akchalak settlement;
- GCC capacity for raw gas processing in volume of 3.0х10 9 m 3 per year
with location in the region of Kungrad city.
There is presented the schematic diagram of Surgil CGTU finished goods transport
by variants in the figure 7.
Variants analysis shows that the variant IIа have maximum advantages with
extraction of 3 billion and GCC location in Akchalak settlement (nearness of the railway
and oil loading rack, highways, TL, main gas pipeline, water conduit and others).
Main purpose of planned activity is fuller use of valuable components containing in
natural gas of Surgil field: ethane, propane-butane fraction, gas condensate, and deeper tank
gas dewatering.
Rational and full retrieval of ethane, propane-butane fraction and gas condensate
from natural gas provides output expansion of polyethylene and liquid hydrocarbons on
GCC.
Volume 2. Part 1. EIS Project for Surgil field construction
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