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Chemistry and Technology of Fuels and Oils

, Volume 55, Issue 5, pp 590–598 | Cite as

Oil Removal Technology and the Mechanism of Oily Cuttings by Silicic Acid Micromicelles

  • Xiaodong BaiEmail author
  • Xingyuan Zhang
  • Tao Ning
  • Zhihong Fu
  • Yumei Luo
  • Zhaozhong Yang
INNOVATIVE TECHNOLOGIES OF OIL AND GAS
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A large amount of oily cuttings is produced in the drilling process when the oil-based drilling fluid is used. The oil and oil-soluble additives adsorbed on the surface of the cuttings may pollute the environment. In this paper the method of silicic acid precipitation and formation of silicic acid micromicelles is used to encapsulate oil and to remove oil from the cuttings. The authors analyze the influence of the stirring time and the solution pH on the oil removal efficiency. When the pH is 2 and the stirring time is 10 min, the oil removal rate is 96%. Research into the mechanism shows the successive formation of silicic acid sol and gel in the process of silicic acid precipitation. The structure of the silicic acid micromicelles is characterized by scanning electron microscopy (SEA). The results of differential scanning calorimetry (DSC) indicate the existence of the exothermic decomposition peak of the hydrocarbons in the range from 350°C to 500°C, which proves that the micromicelle inner phase contains oil.

Keywords

oily cuttings silicic acid micro-micelle oil removal rate scanning electron microscopy differential scanning calorimetry 

Notes

Acknowledgement

This paper was supported by the National Natural Science Foundation of China (NSFC), within the project “Dispersion process and mechanism of multi-component nanoparticles in drilling fluids” (serial number 51104122).

References

  1. 1.
    J. A. Veil, J. of Energy Rasour. Technol., 125, 238-248 (2003).CrossRefGoogle Scholar
  2. 2.
    A. Ramadan et al., J. Pet. Sci. Eng., 30, 129-141 (2001).CrossRefGoogle Scholar
  3. 3.
    R. D. Rufino et al., J. Pet. Sci. Eng., 109, 117-122 (2013).CrossRefGoogle Scholar
  4. 4.
    Xiaodong Bai et al., J. Appl. Polym. Sci., 132, No. 14, 27-34 (2015).CrossRefGoogle Scholar
  5. 5.
    V. P. Sokolov et al., Chem. Technol. Fuels Oils, 15, No. 4, 295-298 (1979).CrossRefGoogle Scholar
  6. 6.
    F.V. Jones and A. J. J. Leuterman, Alternate Environmental Testing of Drilling Fluids: An International Perspective, SPE European Petroleum Conference. The Hague, Netherlands, 21-24 October, 1990.Google Scholar
  7. 7.
    D. P. J. Morrish et al., Drilling Fluids: Economics and Planning to Achieve Environmental Targets, SPE Health, Safety and Environment in Oil and Gas Exploration and Production Conference. Jakarta, Indonesia, 25-27 January, 1994.Google Scholar
  8. 8.
    A. K. Wojtanowicz, Environmental Control Potential of Drilling Engineering: An Oveniew of Existing Technologies, SPE/IADC Drilling Conference. Amsterdam, Netherlands, 11-14 March, 1991.Google Scholar
  9. 9.
    Yan Jienian and Zhao Xionghu, Rheological properties of oil-based drilling fluids at high temperature and high pressure, Acta Pet. Sin., 24, No. 3, 104-109 (2003).Google Scholar
  10. 10.
    Li Xueqing et al., The harmless treatment technique of oily cuttings on oil-based drilling fluid (in China], Drill. Fluid Completion Fluid, 30, No. 4, 81-83 (2013).Google Scholar
  11. 11.
    J. P. Robinson et al., Chem. Eng. 152, 458-463 (2009).CrossRefGoogle Scholar
  12. 12.
    C. G. Street and S.E. Guigard. J. Can. Pet. Technol., 48, No. 6, 26-29 (2009).CrossRefGoogle Scholar
  13. 13.
    R. H. Adams, Environ. Asia, 4, No. 2, 33-37 (2011).Google Scholar
  14. 14.
    G.A.M. Shaw and B. Slater, Removing Oil from Drill Cuttings - An Offshore Solution. SPE Offshore Europe Conference, Aberdeen, United Kingdom, 5-8 September, 1989.Google Scholar
  15. 15.
    N.P. Thurman and M.T. Heydeman, A Microbial Approach to Cleaning Used Oil Based Drilling Muds, SPE Offshore Europe Conference, Aberdeen, United Kingdom, 3-6 September, 1991.Google Scholar
  16. 16.
    Xiaodong Bai et al., J. of Appl. Polym. Sci., 134, No. 46, 1-9 (2017).CrossRefGoogle Scholar
  17. 17.
    Zhouyang Lian et al., Chem. Technol. Fuels Oils, 50, No. 6, 501-507 (2015).CrossRefGoogle Scholar
  18. 18.
    Li Qiuhong et al., Research on technology of oil removal from oily waste water, Sci. Technol. Chem. Ind., 16, No. 5, 24-28 (2008).Fig.6. Scanning calorimetry curve of silicic acid microraicelle.Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Xiaodong Bai
    • 1
    Email author
  • Xingyuan Zhang
    • 1
  • Tao Ning
    • 1
  • Zhihong Fu
    • 1
  • Yumei Luo
    • 1
  • Zhaozhong Yang
    • 1
  1. 1.School of Materials Science and EngineeringSouthwest Petroleum UniversityChengduChina

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