10.1007/s40089-019-0272-8

An overview of chemical enhanced oil recovery: recent advances and prospects

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  • Afeez O. Gbadamosi1,
  • Radzuan Junin*1,
  • Muhammad A. Manan1,
  • Augustine Agi1,
  • Adeyinka S. Yusuff2,
  1. Department of Petroleum Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru, 81310, MY
  2. Department of Chemical and Petroleum Engineering, Afe Babalola University, Ado-Ekiti, NG
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Published in Issue 2019-04-29

How to Cite

Gbadamosi, A. O., Junin, R., Manan, M. A., Agi, A., & Yusuff, A. S. (2019). An overview of chemical enhanced oil recovery: recent advances and prospects. International Nano Letters, 9(3 (September 2019). https://doi.org/10.1007/s40089-019-0272-8
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Abstract

Abstract Despite the progress made on renewable energy, oil and gas remains the world’s primary energy source. Meanwhile, large amounts of oil deposits remain unrecovered after application of traditional oil recovery methods. Chemical enhanced oil recovery (EOR) has been adjudged as an efficient oil recovery technique to recover bypassed oil and residual oil trapped in the reservoir. This EOR method relies on the injection of chemicals to boost oil recovery. In this overview, an up-to-date synopsis of chemical EOR with detailed explanation of the chemicals used, and the mechanism governing their oil recovery application have been discussed. Challenges encountered in the application of the various conventional chemical EOR methods were highlighted, and solutions to overcome the challenges were proffered. Besides, the recent trend of incorporating nanotechnology and their synergistic effects on conventional chemicals stability and efficiency for EOR were also explored and analysed. Finally, laboratory results and field projects were outlined. The review of experimental studies shows that pore-scale mechanisms of conventional chemical EOR is enhanced by incorporating nanotechnology, hence, resulted in higher efficiency. Moreover, the use of ionic liquid chemicals and novel alkaline–cosolvent–polymer technology shows good potentials. This overview presents an extensive information about chemical EOR applications for sustainable energy production.

Keywords

  • Polymer,
  • Surfactant,
  • Foam,
  • Nanofluid,
  • Enhanced oil recovery,
  • Nanotechnology
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