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Nanomaterials
Volume 15
Issue 17
10.3390/nano15171324
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Experimental Evaluation of the Treatment Effect of High Viscosity Drilling Fluid and Floating Oil Using Ozone Fine Bubble Technology

by
Xiaoxuan Guo
1,2,
Lei Liu
1,2,
Nannan Liu
3,*,
Fulong Hu
3 and
Lijuan Zhang
4
1
CNOOC Key Laboratory of Offshore Drilling Fluids and Cementing, Tianjin 300459, China
2
China Oilfield Services Limited, Tianjin 300459, China
3
School of Petroleum and Natural Gas Engineering, Changzhou University, Changzhou 213164, China
4
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2025, 15(17), 1324; https://doi.org/10.3390/nano15171324
Submission received: 4 August 2025 / Revised: 25 August 2025 / Accepted: 26 August 2025 / Published: 28 August 2025
(This article belongs to the Special Issue Nano Surface Engineering: 2nd Edition)
Versions Notes

Abstract

Drilling fluid plays a critical role in drilling engineering. With the deepening implementation of clean production concepts and increasingly stringent environmental regulations, the treatment standards for drilling wastewater at operational sites have been significantly elevated. In response to the characteristics of high oil content, high COD, high chromaticity, high ammonia nitrogen, and total phosphorus content in drilling, the use of fine bubbles to improve gas utilization efficiency and mass transfer effect, combined with ozone gas, is aimed at degrading difficult-to-degrade high-molecular-weight organic compounds, aiming to solve the problems of high viscosity and high oil content in drilling fluids returned from offshore platforms. Indoor simulation experiments have shown that by using ozone fine bubble technology to treat drilling fluids, the viscosity reduction rate can reach over 29%, and the oil removal rate can reach 40%. Ozone fine bubble technology has significant viscosity reduction and oil removal effects on high viscosity drilling fluids.
Keywords: ozone; fine bubbles; drilling fluid; air flotation; high molecular polymer ozone; fine bubbles; drilling fluid; air flotation; high molecular polymer

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MDPI and ACS Style

Guo, X.; Liu, L.; Liu, N.; Hu, F.; Zhang, L. Experimental Evaluation of the Treatment Effect of High Viscosity Drilling Fluid and Floating Oil Using Ozone Fine Bubble Technology. Nanomaterials 2025, 15, 1324. https://doi.org/10.3390/nano15171324

AMA Style

Guo X, Liu L, Liu N, Hu F, Zhang L. Experimental Evaluation of the Treatment Effect of High Viscosity Drilling Fluid and Floating Oil Using Ozone Fine Bubble Technology. Nanomaterials. 2025; 15(17):1324. https://doi.org/10.3390/nano15171324

Chicago/Turabian Style

Guo, Xiaoxuan, Lei Liu, Nannan Liu, Fulong Hu, and Lijuan Zhang. 2025. "Experimental Evaluation of the Treatment Effect of High Viscosity Drilling Fluid and Floating Oil Using Ozone Fine Bubble Technology" Nanomaterials 15, no. 17: 1324. https://doi.org/10.3390/nano15171324

APA Style

Guo, X., Liu, L., Liu, N., Hu, F., & Zhang, L. (2025). Experimental Evaluation of the Treatment Effect of High Viscosity Drilling Fluid and Floating Oil Using Ozone Fine Bubble Technology. Nanomaterials, 15(17), 1324. https://doi.org/10.3390/nano15171324

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