Effect of nonuniform drill mud cake on stress state of reservoir rocks |
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| Authors: | V Ya Rudyak A V Seryakov |
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| Affiliation: | 1. Novosibirsk State University of Architecture and Civil Engineering, ul. Leningradskaya 113, Novosibirsk, 630008, Russia
2. The Baker Hughes Russian Science Center, pr. Kutateladze 4a, Novosibirsk, 630128, Russia
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| Abstract: | The article describes simulation of stress state and pore pressure in a reservoir, in the vicinity of a horizontal well, subjected to the hydromechanical effect of drilling mud, using the poroelastic model of reservoir deformation, which accounts for the dynamics of the drill mud cake formation on the wellbore walls. It is illustrated how the stress and pore pressure are distributed when no cake is formed and in cases f the uniform-permeable and nonuniform-permeable cake. |
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