西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (6): 72-73.DOI: 10.3863/j.issn.1000-2634.2006.06.020

• 油气化学工程与化工 • Previous Articles     Next Articles

DETERMINING THE ABILITY OF INSITU CO2 TO REDUCE OIL′S VISCOSITY BY THE METHOD OF RESISTANCE COEFFICIENT

LIN Bo PU Wan-fen ZHAO Jin-zhou DIAO Su ZHOU Ming   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation;Southwest Petroleum University, Chengdu Sichuan 610500, China
  • Received:2005-09-19 Revised:1900-01-01 Online:2006-12-20 Published:2006-12-20
  • Contact: LIN Bo

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Abstract: It is a new and effective technology to enhance oil recovery by using insitu CO2 to reduce oil viscosity. The authors research the method to determine the oil viscosity reduction by using insitu CO2, and bring forward the method of resistance coefficient. The evaluation is done to the single liquid system and dual liquids system of insitu CO2 ability of reducing oil viscosity in the sand pack. The results indicate that the single liquid system can reduce the oil viscosity by 42.15%, and the dualliquid system can reduce the oil viscosity by 52.69% when the oil viscosity is 12904.1mPa•s, the temperature 70℃, the pressure 6MPa. It shows the method of resistance coefficient to determine the degree of viscosity reduction is feasible and effective.

Key words: insitu CO2, viscosity reduction, resistance coefficient

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