西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (3): 127-130.DOI: 10.3863/j.issn.1000-2634.2008.03.033

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

PROGRESS IN POLYMER/SURFACTANT BINARY COMBINATION DRIVE

LV Xin,ZHANG Jian,JIANG Wei   

  1. Research Center,CNOOC,Beijing 100027,China
  • Received:2007-05-31 Revised:1900-01-01 Online:2008-06-20 Published:2008-06-20

Abstract: Aimed at the presentation and characteristics of polymer-surfactant binary system,indoor research situation of polymer-surfactant binary system and the test in the seventh block 54-61 of Gudong,Shengli oilfield are summarized.The polymersurfactant binary combination drive is a low concentration one formed on the basis of dealkali ternary system,which can greatly enhance the viscosity and elastic of polymer,minimize the negative effect induced by emulsion treatment,totally wipe out scaling of formation and well bore due to the existence of alkali.By researching home and abroad literatures,it is suggested that the polymersurfactant binary system can increase recovery by 20%,good result is achieved in field test.The system can overcome the weak point of ternary system,there is a bright prospective as a new oildisplacing method.

Key words: polymer/surfactant binary system, combination drive, EOR, field experiment, displacement method

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