We have developed a flush fluid for alkaline oxidation degradation of the mud cake for inhibited drilling fluid. The permeability of the smeary core when treated with the flush fluid increases by 125.6%. The mechanism of the washing process was studied by IR spectroscopy, scanning electron microscopy, and energy-dispersive x-ray spectrometry. The polymer backbone is broken down by the strong oxidant; the oligomers or even lower molecular weight fragments formed in this case are easily washed out.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 37 – 41, November – December, 2014.
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Lian, Z., Chen, D., Wei, W. et al. Washing Technology for the Mud Cake of Inhibited Drilling Fluid. Chem Technol Fuels Oils 50, 501–507 (2015). https://doi.org/10.1007/s10553-015-0556-2
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DOI: https://doi.org/10.1007/s10553-015-0556-2