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Study of Oil-Bearing Drill Cuttings Cleaning and De-Oiling Treatment Method for Shale Gas Reservoirs

Jialuo Rong1,2, Shuixiang Xie3,4, Huijing Geng5, Hao Hu1,2, Shanfa Tang1,2,*, Yuanpeng Cheng1,2,*

1 School of Petroleum Engineering, Yangtze University, Wuhan, 430100, China
2 Key Laboratory of Drilling and Production Engineering for Oil and Gas, Wuhan, 430100, China
3 State Key Laboratory of Petroleum and Petrochemical Pollutant Control and Treatment, Beijing, 102206, China
4 China National Petroleum Group Safety and Environmental Protection Technology Research Institute Co., Ltd., Beijing, 102206, China
5 Underground Gas Storage Branch, CNPC, Beijing, 100101, China

* Corresponding Authors: Shanfa Tang. Email: email; Yuanpeng Cheng. Email: email

Energy Engineering 2023, 120(8), 1899-1917. https://doi.org/10.32604/ee.2023.027650

Abstract

Due to its extensive use in shale gas exploration and development, oil-based drilling fluids generate large amounts of oil-bearing drill cuttings during the drilling process. The large amount of oil-bearing drill cuttings generated during the drilling process can lead to serious secondary contamination. In this study, a wetting agent FSC-6 with good hydrophobic and oleophobic properties was synthesized to construct an efficient oil removal system. For the first time, the mechanism of this system was analyzed by using the theory of adhesion function, interfacial tension and wettability. At the same time, a combined acoustic-chemical treatment process was applied to the wastewater and slag generated after the cleaning of the oil-bearing drill cuttings. The experimental results show that the application of this pollution-free technology can effectively solve the environmental pollution and resource recovery problems of oil-bearing drill cuttings. It meets the standard of drilling chips with oil content less than 2% in SY/T7422-2018 “Oil-based drilling fluid drilling chips treatment system for oil and gas drilling equipment”.

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APA Style
Rong, J., Xie, S., Geng, H., Hu, H., Tang, S. et al. (2023). Study of oil-bearing drill cuttings cleaning and de-oiling treatment method for shale gas reservoirs. Energy Engineering, 120(8), 1899-1917. https://doi.org/10.32604/ee.2023.027650
Vancouver Style
Rong J, Xie S, Geng H, Hu H, Tang S, Cheng Y. Study of oil-bearing drill cuttings cleaning and de-oiling treatment method for shale gas reservoirs. Energ Eng. 2023;120(8):1899-1917 https://doi.org/10.32604/ee.2023.027650
IEEE Style
J. Rong, S. Xie, H. Geng, H. Hu, S. Tang, and Y. Cheng "Study of Oil-Bearing Drill Cuttings Cleaning and De-Oiling Treatment Method for Shale Gas Reservoirs," Energ. Eng., vol. 120, no. 8, pp. 1899-1917. 2023. https://doi.org/10.32604/ee.2023.027650



cc Copyright © 2023 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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