9 January 2018

Since the end of 2017, gas turbine power plant (GTPP) for own needs has been operating at the South-Nyurymskoye field of PJSC Surgutneftegas.

GTPP operates in the cogeneration cycle - it generates electricity and heat for the field infrastructure. The power plant consists of two power units of type "Ural-4000" (manufactured by the JSC UEC-Aviadvigatel) with electric capacity of 4 MW each made on the basis of gas turbine units GTU-4P. For issuance of the thermal power there are mounted waste heat exchangers with total capacity of 8 MW.

The new facility operates around the clock, year-round. The GTPP equipment has full redundancy. This excludes its full shutdown when conducting preventive and repair works.

Being located directly at the field, the GTPP uses associated petroleum gas as fuel. This helps solve the problem of recovery of associated gas and significantly reduces the amount of pollutant emissions into the atmosphere.

Compression of APG and its feeding to the turbines under required operating pressure of 2 MPa are provided by the booster compressor station. BCS of hangar type comprises two compressor units (CU) of Enerproject brand EGS-S-170/600WA on base of screw oil-filled compressors. Capacity of each CU is 6,000 m3 / h.



CUs are placed inside a separate capital building. They are equipped with individual ACS and group system of automated control, as well as with two-tier systems of capacity regulation. Operation mode of the units as a part of the facility of oil and gas production complex is uninterrupted with scheduled shutdowns for maintenance.

Gas purification at the inlet of each compressor is implemented by high-efficient separator – two-stage filter-scrubber with automatic drainage system. The process scheme of the BCS also provides for the provision of a set gas feeding temperature to the GTPP.



The phased commissioning of the booster compressor station of fuel gas, including erection supervision, start-up, individual testing and operability check of the BCS during comprehensive testing of gas turbine power plant was performed by the company ServicENERGAS (ENERGAS Group).

REFERENCE. South- Nyurymskoye oil field is situated in the south of the Tyumen region, in the Uvat district within two licensed areas: Nelymskoye and Shalimovskoye. A preliminary assessment of the geological reserves of industrial categories is 20 million tons of oil.

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