Издание: AIP Conference Proceedings. Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 (21-25 September 2015, Tomsk, Russia)
Год издания: 2015
Страницы: 020221-1-020221-4
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
