Modeling of Inelastic Deformation around Vertical and Horizontal Wellsстатья
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Дата последнего поиска статьи во внешних источниках: 28 июня 2016 г.
Аннотация: The paper presents numerical modeling results on plastic deformation development around vertical and horizontal wells in rocks for four lithologies typical of the Bazhenov formation. Estimates of irreversible deformation were obtained depending on wellbore pressure, in-situ stress distribution and rock dilation factor. Computational results showed that for the considered lithology borehole pressure management does not always provide wellbore stability if the contrast between principal stresses is large enough