CO2 injection technology


  • CO2 injection technology is a proven concept in the West specially the US and Canada which increases oil extraction from ageing oil fields.
  • Under it, CO2 gas is injected with residual oil in the ageing field in which total oil production has been declining.
  • It reduces its viscosity and makes it easier to displace oil from the rock pores.
  • CO2 gas also swells oil, thereby pushing it towards the producing well for extraction.
  • Why in news? ONGC is introducing it in Gandhar Oil field, Gujarat

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