Title

Model for Prediction of Recovery and Pressure History for 2-D Displacement of Oil Through Porous Media by Gas/Surfacant

Abstract

Based on the observations made during a series of experiments on a scaled-model, a semi-analytical model is proposed to predict the oil recovery and pressure history from two-dimensional (x,z) systems undergoing gas/surfactant injection. The model is based on the concept of a combination flood, in which gas/foam and surfactant solution flow in separate gravity tongues. The gas/foam displacement is assumed to follow the Buckley Leverett theory, whereas the surfactant displacement follows the Dietz model. The displacements through these tongues are mutually dependent and, therefore, these theories are combined at each stage. The predictions from the model gave a good match with the experimental results for a fairly broad range of operating conditions. The semi-analytical approach adopted in developing the combination drive model has potential for application to certain other types of frontal behaviors.

Meeting Name

Proceedings - 56th Annual California Regional Meeting, Society of Petroleum Engineers.

Department(s)

Mining and Nuclear Engineering

Sponsor(s)

Soc of Petroleum Engineers, Golden Gate Sect, CA, USA

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 Society of Petroleum Engineers (SPE), All rights reserved.

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