Statoil has previously applied Scrams for remote operation of wells from platforms on its Gullfaks and Sleipner fields.
The system makes it possible to monitor and control well operations without expensive interventions, reports Hermod Johansen, reservoir development manager for the Gullfaks satellites. That contributes to improving the recovery factor without adding heavily to costs. Evaluation of the recently completed job will help to determine whether Statoil should continue with remotely-operated well completion.
"The advantage of Scrams is that valves on the seabed can be operated from Gullfaks A," explains Mr Johansen. "In a reservoir containing oil, water and gas, we can shut off a zone producing water and choke back production from zones which primarily produce gas."
I-3 H, which lies in 135 meters of water, was cleaned and brought back on stream, but has now been temporarily shut down because of a turnaround.
Statoil has 140 subsea wells, making it the world's second-largest operator of such installations after Brazil's Petrobras. By December 31st that number will rise to about 200.
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