PHYSICAL SIMULATION FOR FORMATION AND DISTRIBUTION OF FINGERING AND REMAININGOIL

Abstract

Abstract: Water-oil displacment experiments with various viscosity and displacing rates are performed on plain percolation model.Origination of fingering and remaining oil as well as their influnce on recovery percent are analyzed.The potential of exploiting remaining oil in areas around inlets and outlets is first proposed, furthermore, the factors of production rate influnce on recovery percent, such as cri tical characteristics, backflow phenomena, self similari ty of fingering in irregular percolation field and fluctuation of oil flow at outlets are clarified.Recovery strategy for remaining oil and methods to reduce remaining oil during production are presented.

Key words: Percolation, Remaining oil, Fingering, Recovery rate, Displacement test

Zhu Jiucheng, Lang Zaoxin, Huang Yanzhang. PHYSICAL SIMULATION FOR FORMATION AND DISTRIBUTION OF FINGERING AND REMAININGOIL[J]. Xinjiang Petroleum Geology, 1998, 19(2): 154-158.

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PHYSICAL SIMULATION FOR FORMATION AND DISTRIBUTION OF FINGERING AND REMAININGOIL

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