Abstract
Sludge injection, i. e., injection of a mixture of water and solid particles (rock waste or drilling cuttings), can be interpreted as the penetration of a plastic mass into an elastoplastic water-pressurized stratum under the action of high gradients of the pore pressure. A system of elastoplastic deformation of a saturated porous medium describing the injection processes in both the sand formation and the zone occupied by sludge is formulated. An axisymmetric self-similar problem implying the frontal stable displacement of sand by sludge is considered. The chosen interval of variables and the results obtained correspond to the field experimental data.
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Kapustyanskii, S.M., Nikolaevskii, V.N. & Schmidt, J.H. Elasticoplastic Model of Sludge Injection into a Weak Water-Pressurized Reservoir. Fluid Dynamics 38, 293–302 (2003). https://doi.org/10.1023/A:1024281321151
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DOI: https://doi.org/10.1023/A:1024281321151