Research on the Application Potential of New Nano-Oil Displacement Agents to Improve Shale Oil Recovery Rates

Haibo He, Jixiang Guo (), Bo Wang, Yuzhi Zhang, Fan Lei, Tao Wang, Tiantian Zhang and Jing Wang
Additional contact information
Haibo He: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China
Jixiang Guo: Unconventional Petroleum Research Institute, China University of Petroleum, Beijing 102249, China
Bo Wang: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China
Yuzhi Zhang: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China
Fan Lei: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China
Tao Wang: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China
Tiantian Zhang: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China
Jing Wang: Research Institute of Petroleum Engineering and Technology, Tuha Oil Field, Hami 839000, China

Energies, 2024, vol. 18, issue 1, 1-17

Abstract: To meet the demand for enhanced oil recovery in shale reservoirs and to improve the fluidity of shale oil while strengthening its imbibition effect, a multifunctional, thermally stable nanofluid agent, SDP-3, was synthesized using acrylamide (AM) and 2-acrylamido-2-methylpropanesulfonicacid (AMPS) as the primary raw materials. A series of characterizations and tests were conducted to evaluate its interfacial properties, stability, viscosity reduction performance, wettability, and imbibition-driven oil recovery capabilities. Furthermore, the mechanisms by which SDP-3 enhances the recovery of shale oil were analyzed. The results demonstrated that a mass concentration of 2% SDP-3 could reduce the oil–water interfacial tension to 0.071 mN/m. When the concentration increased to 2.0%, the interfacial tension further decreased to 0.071 mN/m, at which point the viscosity reduction rate for shale oil reached 92.02%, and the imbibition recovery rate was 36.57%. Microscopic observations revealed that SDP-3 could disperse shale oil into fibrous and spherical forms, effectively detaching the adhering shale oil from minute pores. This nanofluid agent not only exhibits excellent compatibility and stability but also achieves an ideal oil recovery effect while significantly improving recovery rates, showcasing its immense application potential in oilfield development.

Keywords: nano-oil displacement agent; shale oil; viscosity reduction mechanism (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/1/61/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/1/61/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2024:i:1:p:61-:d:1554569

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().