Geomechanics rock mechanics aspects in deep well drilling

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,...

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Veröffentlicht in:	Journal of mining science 2010-11, Vol.46 (6), p.593-599
Hauptverfasser:	Nazarova, L. A, Nazarov, L. A, El'tsov, I. N, Kindyuk, V. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Drilling Earth and Environmental Science Earth Sciences elastoplastic medium with dilatancy Elastoplasticity Equations of state Failure finite element method Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences irreversible strains Mineral Resources Nonlinearity Rock mass Rock mechanics Thrust vertical well Well drilling
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Beschreibung
Zusammenfassung:	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.
ISSN:	1062-7391 1573-8736
DOI:	10.1007/s10913-010-0075-9