1887

Abstract

The paper discusses the potential increase in oil recovery due to injection of water alternating gas (WAG). The WAG process is compared to waterflooding and gas injection. The mechanisms of the WAG process which makes the process interesting for a North Sea reservoir are discussed. The application of a WAG scheme is discussed with regard to the field restrictions and possibilities of Norwegian reservoirs. The WAG process is found to improve the oil recovery primarily due to improved vertical sweep efficiency. Cross-sectional models have been used to study the sensitivity to variations in vertical permeability.

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/content/papers/10.3997/2214-4609.201411206
1991-05-21
2020-10-24
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