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The AAPG/Datapages Combined Publications Database
Indonesian Petroleum Association
Abstract
Downhole Oil and Water Separation – Potential of a New Technology
Abstract
Chevron has to lift, separate, treat, and dispose of over 5 million barrels of water per day in its worldwide operations. Shutting off water production is a key area of technology development. To data, this method has only been marginally successful and often leaves reserves behind. Another approach, which was developed by C-FER (Centre for Engineering Research, Inc.), utilizes the Downhole Oil-Water Separator (trade name AQWANOT™). The AQWANOT™ system separates oil and water downhole and lifts a concentrated oil-water stream to the surface. The separated water stream is reinjected into the formation or into a downhole disposal zone within the same wellbore. While reviewing the AQWANOT™ system, evidence is herein provided to show that downhole separation is possible. Recognizing inherent limitations a review of advantages to reduce operating and capital expense, increase recoverable reserves through reservoir flood modifications and reduction in environmental risks leads into a discussion of the possible current and future uses of this technology within the oil field.
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