A Simulation Case Study for Different Scenarios of Pressure Maintenance to Revive Oil Production From Nukhul Reservoir at East Zeit Oil Field

Document Type : Original Article

Authors

1 Faculty of Petroleum & Mining Engineering, Suez University, Suez, Egypt

2 East Zeit Petroleum Company

3 Schlumberger Company

Abstract

This  paper  describes  a  simulation  study  for  pressure  maintenance  in  the Nukhul reservoir of the East Zeit Field, offshore Gulf of Suez, Egypt. Results of a  black-oil  reservoir  simulation  study have been  used  as the basis  for evaluation of pressure maintenance project alternatives.  Different operating scenarios have been examined for their efficiencies in terms of recovery. Alternatives considered are: (1) Base case (continued natural depletion) (2) recompletion using gas shut-off (3) infill wells (4) water injection  (5) gas injection (6) simultaneous injection of gas and water. Production is mainly derived from solution gas drive. The study concludes that gas injection into the crest of the reservoir will be the most efficient pressure maintenance program. Water injection and other production scheme would be less efficient and show low oil recovery.

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