Abstract
ABSTRACT Under a different and healthier pricing environment, Esso initiated engineering and laboratory work to evaluate a miscible gas process at Flounder. The objective of the evaluation was to study the benefits of immiscible gas injection as well as the potential of achieving miscibility and hence, an incremental oil recovery from the field. To accomplish the project objective, a simulation study and laboratory evaluation of Flounder oil and gas samples were undertaken. The laboratory studies were necessary to define the miscibility conditions to be expected at Flounder. The simulation study was undertaken to determine if the Flounder reservoir characteristics, such as dip, stratification and permeability contrast, are favourable to achieving higher oil recoveries by gas injection. This paper reviews the results of the simulation and laboratory work which was undertaken at Esso, Exxon Production Research Company and the University of New South Wales.
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