Experimental Research for Chemical Flooding of Heavy Oil

DOI

10.2991/ap3er-15.2015.75How to use a DOI?

Keywords

polymer flooding;offshore oilfield;recovery efficiency;swept efficiency;displacement efficiency.

Abstract

Polymer flooding has already been the preferred development mode for the efficient development in offshore, aim at the conditions of the reservoirs in offshore, this paper has used two-dimensional physical model to conduct three tube parallel experiments to study the displacement efficiency of water flooding and polymer flooding, used real-time monitoring system of saturation to monitor the conditions of the use and swept for the heterogeneous reservoirs. The results showed that when the composite water cut reached 95% during the water flooding, from the overall perspective, the recovery efficiency was 26.5%, the swept efficiency was 48%, the oil displacement efficiency was 55.2%; the polymer was injected when the water cut was 70% during the stages of water flooding, from the overall perspective, the recovery efficiency was 36.2%, the sweep efficiency was 65%, the oil displacement efficiency was 59.4%. It could be seen from the curve of shunt index that the shunt index for the middle permeability layer during the stage of polymer flooding increased apparently, which turned out that the efficiency of expanding swept volume is better than the efficiency of enhancing displacement efficiency during the stage of 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  - Quanzhi Li
AU  - Yingjie Liu
AU  - Xiaofang Yang
PY  - 2015/06
DA  - 2015/06
TI  - Experimental Research for Chemical Flooding of Heavy Oil
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 318
EP  - 321
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.75
DO  - 10.2991/ap3er-15.2015.75
ID  - Pi2015/06
ER  -