Chemical Flooding Experiment After the Polymer Flooding in Offshore Oilfield

Li Liu; Yanming Pi; Ying He; Zhenxing Zhang; Zetian Meng; Zhipeng Dai

doi:10.18311/jmmf/2017/27013

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Authors

Li Liu
Northeast Petroleum University, Daqing 163 318 ,CN
Yanming Pi
EnerTech-Drilling & Production Co., CNOOC, Tanggu 300 457 ,CN
Ying He
Northeast Petroleum University, Daqing 163 318 ,CN
Zhenxing Zhang
CNOOC EnerTech-Safety & Environmental Protection Co., Toutai Company of Daqing Oil field.166 512 ,CN
Zetian Meng
No.6 Oil Production Company of Daqing Oilfield Co., Ltd. 163 114 ,CN
Zhipeng Dai
Northeast Petroleum University, Daqing 163 318 ,CN

DOI:

https://doi.org/10.18311/jmmf/2017/27013

Keywords:

Viscous Oil, Polymer Flooding, Chemical Flooding, Alkaline-Polymer Flooding.

Abstract

The offshore oilfield are mostly viscous oil reservoirs. Tertiary oil recovery technology is mainly composed of the injection of the polymer solution. It is a problem to be solved for researchers to improve the oil recovery further. In the current study, we designed the heterogenetic physical model for the typical offshore area. The comparative study was carried out by experiments. In the meantime, we discussed the plan optimization of the chemical flooding after the polymer flooding in an offshore oilfield and evaluated the production level under different injection mode. The experimental results proved that the alkaline-polymer flooding is the preferred mode of chemical flooding after the polymer flooding in offshore typical area.