Title: Experimental Research on Chemical Auxiliary Hot-water Flooding for NB35-2 Oilfield
Abstract: Through the core displacement test,the hot-water flooding and chemical auxiliary hot-water flooding for NB 35-2 Oilfield were studied and the effects of injected water temperature on chemical displacement efficiency were investigated.The experimental results show that raising temperature of injected water and adding injecting chemical agent can effectively improve the effect of water flooding.When the temperature of injected water was raised by 20℃ and 40℃,the oil displacement efficiency of hot-water flooding can be improved for 12.0% and 18.2% respectively,the oil displacement efficiency of chemical auxiliary hot-water flooding can be improved for 21.0% and 29.0%.respectively.Chemical auxiliary hot-water flooding is used in offshore heavy-oil oilfields,the oil recovery can be further improved in offshore oilfields.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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