Santos downgrades Indonesia oil resource

Oil and gas producer Santos Ltd has been forced to downgrade the size of its Jeruk offshore Indonesian oil discovery which may now be less than half the size originally thought.

Data from the third appraisal well drilled to test the reservoir has seen the height of the hydrocarbon column at Jeruk slashed to about 145 metres from the previous estimate of 379 metres.
A spokeswoman for Santos said the difficult conditions have been made tougher by the multiple fractures in the volcanic rock that held the reservoir.

“We are really pushing the limits of technology,” she said.

The Age