Experimental Study on Saturation Distribution of Heterogeneous Reservoir

DOI

10.2991/ap3er-15.2015.96How to use a DOI?

Keywords

saturation distribution; the remaining oil; sweep efficiency; oil saturation monitoring technology; polymer flooding

Abstract

Polymer flooding has a large-scale promotion in Daqing oilfield, this paper prepared two-dimensional heterogeneous model according to the typical reservoir in Daqing oilfield and did the experiments of water flooding and polymer flooding with the method of three tubes parallel, monitored the oil saturation distribution in the process of displacement timely by using the advanced saturation monitoring method. The results show that, the recovery rate was 30.35% in the water flooding stage and improve the degree of recovery to 8.28% in the polymer flooding stage. The mainstream channels in the high permeability layer was formed and occurred the phenomenon of fingering in each layers after water flooding, the remaining oil is mainly distributed in the medium and low permeability layer. The polymer advanced to the high permeability layer and increased the injection pressure and the amount of liquid absorption of the medium and low permeability layer after polymer injection, the distribution of remaining oil mainly in low permeability layer after polymer flooding.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanfu Pi
AU  - Xiaosai Guo
AU  - Jing Wang
AU  - Yongcun Jia
PY  - 2015/06
DA  - 2015/06
TI  - Experimental Study on Saturation Distribution of Heterogeneous Reservoir
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 408
EP  - 412
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.96
DO  - 10.2991/ap3er-15.2015.96
ID  - Pi2015/06
ER  -