Xiaohua Zhu1,*, Li Zeng1, Bo Li1
CMES-Computer Modeling in Engineering & Sciences, Vol.121, No.2, pp. 631-660, 2019, DOI:10.32604/cmes.2019.06755
Abstract The complicated geological conditions will bring great challenges to the
drillstring of horizontal wells for the reason that the increase of the well depth in SichuanChongqing
region. Since drillstring failure and friction during drilling are generally caused
by drillstring vibration, great importance must be attached to computer simulation methods
for the prediction of drillstring vibration. A finite element model considering axial, lateral
and torsional vibration is established. In order to verify the established numerical model,
an indoor experimental device based on the similarity principle was established. The
vibration characteristics of three shale gas horizontal wells drillstrings are described. The
reasons… More >
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