
Abdol-Hossein Koutaki said 4.5 bcm of gas was injected into the fields for enhancing oil recovery.
He said 900 mcm was injected into Karanj-Parsi field, 380 mcm to Koupal field and 3.3 bcm to Aghajari field.
Iran injects into gas fields in order to increase recovery from them.
Gas injection is a method applied to mature fields.
By SHANA
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