RESEARCH ON OIL DISPLACEMENT FORMULA OF THREE-COMPONENT COMPOUND SYSTEM IN HONGGANG OILFIELD SAERTU RESERVOIR

doi:10.3863/j.issn.1000-2634.2001.01.013

西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (3): 44-46.DOI: 10.3863/j.issn.1000-2634.2001.01.013

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RESEARCH ON OIL DISPLACEMENT FORMULA OF THREE-COMPONENT COMPOUND SYSTEM IN HONGGANG OILFIELD SAERTU RESERVOIR

HONG Ling¹ ZHANG Zhong-lin¹ DONG Xian-hong¹ et al

Exploration and Development Research Institute of Jilin Oilfield, Songyuan Jilin 138001,China

Received:2000-11-20 Revised:1900-01-01 Online:2001-08-20 Published:2001-08-20
Contact: HONG Ling

Abstract

Abstract: It is getting more and more difficult to enhance oil recovery by conventional methods because of the high-water-cut development in Honggang oilfield. Three-component compound system that consists of alkali, surfactant and polymer can reach the ultralow interfacial tension with oil as well high viscosity. It can both increase the oil displacement efficiency and improve the
swept volume so that the ultimate recovery is increased. According to the reservoir features in Honggang oil field Saertu reservoir, the oil displacement formula of the system is screened by using quadrature test design method. The determined formula is 1.5%A+0.06%S+0.2%P+0.2%N. Main indexes
of the system: the interfacial tension is (3-7)×10^-3 mN/m,the viscosity is more than 20 mPa.s, the oil displacement efficiency by natural test core increase more than 10% water flooding recovery.

Key words: polymer, surfactant, oil displacement, interfacial tension, enhanced oil recovery

CLC Number:

TE357.46

HONG Ling ZHANG Zhong-lin DONG Xian-hong et al. RESEARCH ON OIL DISPLACEMENT FORMULA OF THREE-COMPONENT COMPOUND SYSTEM IN HONGGANG OILFIELD SAERTU RESERVOIR[J]. 西南石油大学学报(自然科学版), 2001, 23(3): 44-46.

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RESEARCH ON OIL DISPLACEMENT FORMULA OF THREE-COMPONENT COMPOUND SYSTEM IN HONGGANG OILFIELD SAERTU RESERVOIR

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