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Low downtime and minimal maintenance improve remote oil field economics.
With 150 million bbl of recoverable reserves, the Nexen Hay River Bluesky oil pool is among Western Canada’s largest oil finds in the past 20 years. Initial pilot production testing led to a finding that, to economically produce the field, several things would be needed:
* Triple, lateral, horizontal producing wells.
* •n-field horizontal water injection/ water disposal wells for pressure maintenance.
* Artificial lift from the outset.
Further complicating output at Hay Pool, in remote, northeastern British Columbia, road access would be limited to four out of 12 months. This is because roads must be "frozen in" prior to use. So, it was extremely important, economically, that the artificial lift method chosen should be very reliable and require minimal maintenance. The method should be safe and capable of lifting large fluid volumes with significant pressure drawdown
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