The Influence of the Carbon Dioxide-steam Alternate Ratio and the Permeability Difference Affect Oil Recovery of Steam Composite Flooding

DOI

10.2991/icmeim-17.2017.13How to use a DOI?

Keywords

Heavy Oil, Carbon Dioxide-Steam Composite Flooding, Permeability Difference, Enhanced Oil Recovery

Abstract

By means of 4 groups 10 m single-filled sand pipe models with the same permeability and 5 groups of double-filling sand pipe models with 10 m average 5 permeability difference of 1.00, 1.85, 2.80, 3.65 and 4.29, The optimal alternation ratio of carbon dioxide-steam flooding after steam flooding and the effectiveness of composite flooding to enhance oil recovery in a range of permeability difference are studied. The experimental temperature is 200 , 4 groups of single-tube model oil displacement experiments are carried out. The steam is driven to water cut of more than 98%, 0.5 ml(0.0078 PV) high-temperature foaming agent is injected. Then carbon dioxide-steam is injected alternately by 1:1, 1:2, 1:3, 1:4.The result shows that the optimal ratio of carbon dioxide-steam is 1:1. Base on carbon dioxide-steam optimal proportion of 1:1 alternately 5 permeability difference for 1~4.29 double tube model oil displacement experiments are finished. The result shows that the composite flooding increase recovery is 13.29% ~ 23.82% under the condition of heterogeneity, the effect is remarkable.

Copyright

© 2017, 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  - Tao-Ping Chen
AU  - Shuang Liu
AU  - Rui-Jie Cui
PY  - 2017/02
DA  - 2017/02
TI  - The Influence of the Carbon Dioxide-steam Alternate Ratio and the Permeability Difference Affect Oil Recovery of Steam Composite Flooding
BT  - Proceedings of the 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017)
PB  - Atlantis Press
SP  - 67
EP  - 72
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmeim-17.2017.13
DO  - 10.2991/icmeim-17.2017.13
ID  - Chen2017/02
ER  -