2006. Vol. 4. Issue 1, Pp. 68–72
URL: https://multiphasesystems.online/uim2006.1.006,en
DOI: https://doi.org/10.21662/uim2006.1.006
URL: https://multiphasesystems.online/uim2006.1.006,en
DOI: https://doi.org/10.21662/uim2006.1.006
Stress deformed state of a drill string under off-design conditions
Khakimov A.G.∗, Sharafutdinov Z.Z.∗∗
∗Institute of Mechanics, Ufa
∗∗OAO Giprotruboprovod, Moscow
∗∗OAO Giprotruboprovod, Moscow
Abstract
The paper gives a methodology for calculating the drill string performance under off-design conditions, including the passage through the interface separating rocks with very different physico-mechanical characteristics, drilling of boulder rocks, and dynamic modes of operation. One of the mechanisms of the destruction of drill string elements and roller cutters is revealed.
Citation
Khakimov A.G., Sharafutdinov Z.Z. Stress deformed state of a drill string under off-design conditions Proceedings of the Institute of Mechanics of Ufa Branch of RAS. 4 (2006). 68–72.
Keywords
stress state,
drill string,
off-design conditions