西南石油大学学报(自然科学版) ›› 2003, Vol. 25 ›› Issue (1): 59-61.DOI: 10.3863/j.issn.1000-2634.2003.01.017

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

INFLUENCE OF METALLIC IONS AND TOTAL SALINITY ON WEAK GEL

CHEN Tie-long1 XIE Yu-qing2 ZHAO Ji-kuan1 et al
  

  1. Southwest Petroleum Institute, Nanchong Sichuan 637001, China
  • Received:2002-05-10 Revised:1900-01-01 Online:2003-02-20 Published:2003-02-20

Abstract: Weak gel has been applied successfully in water flooding reservoirs to modify profile and to control mobility for a few years. Results of laboratory experiments and field trials have indicated that the injection of the weak gel could observably improve sweep efficiency and enhance oil recovery in water flooding reservoirs. The laboratory investigation was conducted to
determine the influence of metallic ions and total salinity on weal gel. The results have showed that the factors, including types and concentration of the metallic ions ( Na+ 、K+ 、Mg 2+ 、Ca 2+ )the total salinity, have important impacts on the properties of the weak gel.

Key words: weak gel, profile modification, salt tolerant property, salinity

CLC Number: