西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (1): 119-121.DOI: 10.3863/j.issn.1000-2634.2008.01.033

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

Oil Replacement by the Combination of Enzyne and Rhamnolipid Fermentation Liquor

ZHAO Li1 SUN Yang2 JIN Yan-fang1 SHEN Yu-jiang1 WANG Fang1   

  1. 1.Victex Extracts Oil Engineering Institute of Technology,Daqing Heilongjiang 163411,China;2.Daqing Petroleum Institute,Daqing Heilongjiang 163411,China
  • Received:2007-04-14 Revised:1900-01-01 Online:2008-02-20 Published:2008-02-20
  • Contact: ZHAO Li

Abstract: Aiming at the technological problem that enzyme does not improve water absorbent index in the oil replacement in high permeability reservoirs,by means of simulating formation oil recovery,replacement and interface tension experiment,as well as the mechanism of replacement adjustment of marcromolecule micellar in rhamnolipid fermentation liquor,the combination agent of enzyme and rhamnolipid fermentation liquor of concentration 0.8% is applied to replace oil,the recovery rate is obtained and the curves of water cut,pressure and recovery rate in different phases are analyzed.Through the comparison of interface tension and the effect of oil replacement,it is shown that combination replacement of rhamnolipid fermentation liquor and enzyme matches well,and apparently improves recovery of high permeability reservoirs.

Key words: Rhamnolipid, oil recovery, enzyme, interfacial tension, curve

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