Abstract
Based on the proposed modeling approach to deep well drilling with the use of equations of state of an elastoplastic medium with dilatancy, the authors have found nonlinear relationship between dimension of probable failure zones in the wellbore vicinity and the value of lateral thrust coefficient, as well as they explain the causes of rise in speed of drilling at the depth of 3–4 kilometers.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 3–10, November–December, 2010.
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Nazarova, L.A., Nazarov, L.A., El’tsov, I.N. et al. Geomechanics rock mechanics aspects in deep well drilling. J Min Sci 46, 593–599 (2010). https://doi.org/10.1007/s10913-010-0075-9
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DOI: https://doi.org/10.1007/s10913-010-0075-9