New Technology Reduces High Water Production in Heavy-Oil Field in Oman
Field N is a complex heavy-oil field in the north of the Sultanate of Oman. The dynamic behavior of Field N is characterized by strong aquifer and is dominated by bottomwater drive.
The subject field is one of the largest mature oil accumulations in the South Oman Salt Basin. Production and integrity issues have been challenging in recent years, manifesting in abnormal water cut with time. A multidisciplinary study concluded that this water-cut behavior was the result of naturally occurring fractures that are limited in length and not vertically extensive. The proposed solutions included detecting fractures early using borehole imaging techniques and using elastomeric zonal isolation packers (EZIPs) in sealing as many fractures as possible.