Abstract
Theoretical and experimental investigations of localized structures appearing in filtration of nonlinear viscoplastic drilling fluids are reported. The depth of penetration of mud into a porous medium is shown to be dependent on the rate of change of the pressure on the boundary. This fact has been suggested for use in creation of colmatage barriers that prevent penetration of drilling mud into strata.
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Central Asia State Scientific-Research and Design Institute of the Gas Industry, Tashkent, Uzbekistan. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 66, No. 5, pp. 573–579, May, 1994.
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Khasanov, M.M., Mamadzhanov, É.U. Justification of rheotechnological methods of control of colmatage. J Eng Phys Thermophys 66, 508–514 (1994). https://doi.org/10.1007/BF00851713
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DOI: https://doi.org/10.1007/BF00851713