西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (1): 106-109.

• 石油与天然气工程 • 上一篇    下一篇

羊三木稠油油藏复合驱提高采收率实验研究

伊向艺1,李涧松1,王洪波2   

  1. 1.“油气藏地质及开发工程”国家重点实验室 成都理工大学,四川成都610059;2. 中国石油大港油田第六采油厂,河北沧州061100
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-02-01 发布日期:2013-02-01

Experimental Research on Combination Flooding System for EOR inYangsanmu Heavy Oil Reservoir

Yi Xiangyi1, Li Jiansong1, Wang Hongbo2   

  1. 1. State Key Lab of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,Sichuan,610059,China2. Sixth Oil Production of Dagang Oilfield Company,CNPC,Cangzhou,Hebei,061100,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-02-01 Published:2013-02-01

摘要: 针对羊三木普通稠油油藏特征,通过界面张力实验和乳化实验筛选了聚表(SP)二元复合驱体系,体系组成为
2 000 mg/L 表面活性剂PS–2+1 000 mg/L 聚合物HPAM。该聚表二元体系使油水界面张力降至10􀀀2 mN/m 数量级,并
形成稳定的O/W 型乳状液。乳状液60 min 析水率为10.8%,降黏率为95.8%。岩芯流动实验表明,注入0.3 PV 驱油
体系采收率提高幅度分别为聚表二元复合驱15.7%、聚合物驱10.8% 和表面活性剂驱7.9%。聚表二元复合驱提高羊
三木稠油油藏采收率效果最好,适合用于提高普通稠油油藏采收率。

关键词: 稠油, 表面活性剂, 聚合物, 复合驱

Abstract: A surfactant-polymer(SP)system screened by interfacial tension experiments and Emulsifying test is prepared for
EOR in view of Yangsanmu heavy oil reservoir. This system is composed of a surfactant(PS-2)with a density of 2 000 mg/L and
HPAM with a density of 1 000 mg/L,which can reduce the oil-water interfacial tension to the magnitude of 10􀀀2 mN/m and form
stable water-in-oil(W/O)emulsion with a water separation rate of 10.8% and a viscosity-reducing rate of 95.8% for 60 min.
Core flow experiments demonstrate that the enhanced recovery of three different systems referring to SP,single polymer and
single surfactant system is 15.7% ,10.8% and 7.9% respectively when 0.3 PV flooding system was injected. Thus,SP system
is the best for EOR in Yangsanmu heavy oil reservoir,and is also helpful to applied to improve oil recovery for ordinary heavy
oil reservoir

Key words: heavy oil, surfactant, polymer, combination flooding