Li Jingyuan, Li Zifeng. ROCK ELASTIC-PLASTIC STRESSES AROUND A WELLBORE AND WELLBORE STABILITY UNDER PERMEATION OSMOSIS[J]. Engineering Mechanics, 1997, 14(1): 131-137.
Citation: Li Jingyuan, Li Zifeng. ROCK ELASTIC-PLASTIC STRESSES AROUND A WELLBORE AND WELLBORE STABILITY UNDER PERMEATION OSMOSIS[J]. Engineering Mechanics, 1997, 14(1): 131-137.

ROCK ELASTIC-PLASTIC STRESSES AROUND A WELLBORE AND WELLBORE STABILITY UNDER PERMEATION OSMOSIS

  • To keep wellbore stability is important in oil drilling and production.In this paper,an incompressible fluid to flow radially into or out of a wellbore being allowed,the elas-tic and plastic stresses around the wellbore were analysed according to the Mohr-Coulomb failure criterion and the condition of stability of the wellbore is discussed.
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