Experimental investigation of surfactant enhanced spontaneous imbibition in Chinese shale oil reservoirs using NMR tests

Junrong Liu; James J. Sheng

doi:10.1016/j.jiec.2018.12.044

Experimental investigation of surfactant enhanced spontaneous imbibition in Chinese shale oil reservoirs using NMR tests

Junrong Liu, James J. Sheng

Petroleum Engineering

Research output: Contribution to journal › Article

12 Scopus citations

Abstract

Surfactant enhanced spontaneous imbibition is an effective method to enhance oil recovery in shale reservoirs, however the mechanism is still unclear. This work attempts to investigate the effect of added surfactants on the spontaneous imbibition into shale rocks using NMR tests. Contact angles and IFT are measured to evaluate the efficiency of different surfactants in terms of wettability alteration and IFT reduction. According to the experimental results, the studied anionic surfactants perform better on the wettability alteration of shale rocks than studied nonionic surfactants, and the key factor to enhance the shale oil recovery may be wettability alteration.

Original language	English
Pages (from-to)	414-422
Number of pages	9
Journal	Journal of Industrial and Engineering Chemistry
Volume	72
DOIs	https://doi.org/10.1016/j.jiec.2018.12.044
State	Published - Apr 25 2019

Keywords

NMR
Shale Oil
Spontaneous imbibition
Surfactant

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10.1016/j.jiec.2018.12.044

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Liu, J., & Sheng, J. J. (2019). Experimental investigation of surfactant enhanced spontaneous imbibition in Chinese shale oil reservoirs using NMR tests. Journal of Industrial and Engineering Chemistry, 72, 414-422. https://doi.org/10.1016/j.jiec.2018.12.044

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