Fig 13 -

Fig 13 -

<div><p>The rib working resistance of push-the-bit rotary steerable drilling system seriously affects its dynamic performance. For example, the backing pressure problem caused by steps in the well wall during the working process of CNOOC Welleader static push-the-bit rotary steerable dri...

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Bibliographic Details
Main Author: Jianbo Jia (717814) (author)
Other Authors: Youhong Sun (2821276) (author), Ke Gao (1521607) (author), Yan Zhao (58882) (author), Bing Li (43671) (author), Xu Li (23864) (author)
Published: 2024
Subjects:
Neuroscience
Evolutionary Biology
Biological Sciences not elsewhere classified
test block crossed
optimal design method
front chamfer area
corresponding theoretical model
backing pressure problem
8 %, 27
8 %, 25
5 &# 176
mean value decreased
cnooc welleader system
3mm height decreased
rib working resistance
simulation results show
optimal polyline angle
welleader system
3mm height
results show
simulation results
peak value
forward resistance
working process
working principle
numerical simulation
xlink ">
well wall
three heights
good performance
experimental research
dynamic performance
circular arc
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