Nonlinear dynamics of directional drilling with fluid and borehole interactions
| Autor: | Quang-Thinh Tran, Régis Dufour, Lionel Manin, Marie-Ange Andrianoely, Mohamed Ali Mahjoub, Stéphane Menand, Khac-Long Nguyen |
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| Přispěvatelé: | Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), DrillScan |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Timoshenko beam theory
Acoustics and Ultrasonics Mechanical Engineering Directional drilling Drilling 02 engineering and technology Mechanics Rotordynamics Condensed Matter Physics 01 natural sciences Rate of penetration 020303 mechanical engineering & transports [PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph] 0203 mechanical engineering Mechanics of Materials Drilling fluid 0103 physical sciences Fluid–structure interaction Drill bit 010301 acoustics Geology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Journal of Sound and Vibration Journal of Sound and Vibration, Elsevier, 2019, 462, pp.114924. ⟨10.1016/j.jsv.2019.114924⟩ |
| ISSN: | 0022-460X 1095-8568 |
| Popis: | In rotary drilling, a drillstring is an assembly of slender pipes. It is used to transmit the driving torque of a motor at the drilling surface to the drill bit at the bottom hole of a 3D well. Numerous vibratory phenomena are induced during the drilling: whirling, stick-slip, bit-bouncing, lateral instability, inducing in particular reduction of the rate of penetration and mean time between failures. For the rotordynamics prediction of such a structure, the drillpipes are modelled with Timoshenko beam elements, containing 12° of freedom, equipped with distributed radial stop-ends. The rotary motion is assumed to have a constant speed of rotation imposed at the top of the drillstring. The drilling mud is taken into account by using a fluid-structure interaction model. The numerical simulations concern a real 3D-borehole and a parametric analysis is carried out for determining the role of the mud density and of the flows rate on the drillstring dynamics. It is shown that increasing the flow rate and densifying the drilling fluid reduce the fluid damping effect that increases drillstring lateral vibrations. |
| Databáze: | OpenAIRE |
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