Surgil ESIA Report - Volume III - EKN

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“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 70
“O’ZLITINEFTGAZ” PC PFS “Surgil field complex costruction with valuable components retrieval” Thus, necessity for urgent designing and building of constructions for fuller valuable components retrieval does not require proofs. Designed object could be safely referred to nature-conservation and resource-saving (rational use of mineral resources). Thus, it is difficult to choose more optimum variants for designed technology and for constructions arrangement. Volume 2. Part 1. EIS Project for Surgil field construction 71
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