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Further development of Chilkuvar field with BCS-2 construction

BCS-2 is designed to maintain sweet gas pressure under formation energy depletion conditions in order to ensure processing and further transportation of the gas.

Raw sweet gas is fed to BCS inlet from downstream of the Chilkuvar Preliminary Gas Treatment Unit (PGTU) in the amount of 535.41-418.3 103MSCM/d (modifications to production rate +10/-30%).

BCS-2 technical data:

  • Gas production rate, 103.MSCM/d 535.41...418.3
  • Inlet gas pressure, МРа (g) 1.2...0.27
  • Discharge gas pressure, МРа (g) 1.55...0.9
  • Gas compressor unit outlet temperature, 0С 40
  • Gas compressor unit outlet temperature, 0С 60
  • H2S content, % mol. 0.07
  • Number of Gas compressor units, pcs. 2 (2+0)

Gas Compressor Units are located in block containers basing on: electrically driven screw.

The following units and systems are included in BCS-2:

  • Inlet and outlet valve assembly
  • Compressor station inlet separator unit С-001
  • Screw compressor unit GCU-100/К-200 with inlet separator unit С-101/С-201, air cooler unit AC-101/AC-201, outlet separator unit С-102/С-202

BCS-2 auxiliary systems:

  • Oil supply system
  • Liquid collection and transfer system
  • Gas discharge to the flare
  • Control room
  • Transformer substation
  • Operational and maintenance block
  • Fire pump house
  • Water treatment unit