(T.E.T)
India lost 3.8 million tonnes of crude oil worth Rs 11,276 crore in four years due to less than planned water injection by ONGC in its western offshore fields, the Comptroller and Auditor General of India (CAG) said. Oil and Natural Gas Corporation’s (ONGC) aging Mumbai High, Neelam and Heera fields off the Mumbai coast have been on a decline and water is injected into wells to push out the remaining oil. “There was inadequate water injection,” the CAG said in a report tabled in Parliament on Thursday.
“Water injection in the field was affected due to aging of injection infrastructure, frequent pipeline leakages due to poor quality of injection water, non-implementation of feasibility report inputs and to some extent, production from high gas-oil ratio wells.”
“Decline in reservoir pressure is further accentuated by higher gas production from the reservoir,” it said. “Periodic recommendations of the (Oil) Ministry on importance of water injection, its distribution and maintenance of reservoir health were not fully implemented.”
