The impact of multidirectional excitation on the stick–slip vibration characteristics of a drill string [PDF]
Stick–slip vibration is a common phenomenon in ultra-deep drilling that significantly impacts the failure of both drill bits and drill tools. The most direct and efficacious approach to alleviating the stick–slip vibration of the drill string in the ...
Zhao Hongshan, Wang Wenchang, An Kaixian
doaj +3 more sources
Stick-Slip Vibration Suppression in Drill String Using Observer-Based LQG Controller. [PDF]
Hydrocarbon exploration and production activities are guaranteed through various operations including the drilling process, which is realized by using rotary drilling systems. The process involves crushing the rock by rotating the drill bit along a drill
Riane R +4 more
europepmc +2 more sources
Stick-slip vibration characteristics of drilling tool during drilling in coal seam with gangue. [PDF]
Aiming at the problem of stick-slip vibration caused by sudden drilling resistance torque during drilling in coal seam with gangue, the drilling tool dynamic model with two degree of freedom was established based on the interaction between the bit ...
Han X, Li P, Xue L, Xu J.
europepmc +2 more sources
Stick–Slip Vibration Characteristics Study of the Drill String Based on PID Controller
In order to address the issue of drill string stick–slip vibration, which leads to drill bit wear and reduces the drilling velocity, we conducted a study on the characteristics of stick–slip vibration using a proportional-integral-derivative (PID ...
Baoyong Yan +3 more
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Dynamic models and analysis of key factors influencing stick–slip vibration in disc brake system
The stick–slip vibration of the disc brake system at low speed is caused by the interaction of multiple factors. This paper focuses on the disc brake system of the high-speed train as the research object, establishing three- and four-degree-of-freedom ...
Hangyu Zhou +5 more
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Analysis of the effects of torsional impact tools on drill string stick–slip vibration
Torsional impactor is widely used in deep and ultra-deep wells because it can suppress stick–slip vibration and increase ROP. As the direct factor affecting torsional impactor effect, it's working parameters study is still not sufficient.
Chaoyi She +5 more
doaj +2 more sources
Stick-slip vibration behaviors of BHA and its control method in highly-deviated wells
Stick-slip vibration is a common phenomenon met in oil gas drilling, especially in the complex trajectory wells such as highly-deviated wells, it will cause the earlier failure of BHA (bottom hole assembly) and lower drilling efficiency.
Weiji Liu +3 more
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Experimental Study on Axial Impact Mitigating Stick-Slip Vibration with a PDC Bit
Stick-slip vibration reduces the drilling rate of penetration, causes early wear of bits, and threatens the safety of downhole tools. Therefore, it is necessary to study suppression methods of stick-slip vibration to achieve efficient and safe drilling ...
Yong Wang +7 more
doaj +2 more sources
The inhibition mechanism of ultrasonic vibration on stick-slip phenomenon of sliding friction pair [PDF]
Frictional vibration often occurs during sliding, commonly referred to as the stick-slip phenomenon. It is more likely to occur in the range of the Stribeck curve, where friction and velocity have negative gradient characteristics.
Lingjie Luo +6 more
doaj +2 more sources
Fractional-order controllers for stick-slip vibration mitigation in oil well drill-strings
Drillstring–borehole interaction can produce severely damaging vibrations. An example is stick–slip vibration, which negatively affects drilling performance, tool integrity and completion time, and costs.
Massinissa Derbal +4 more
doaj +2 more sources

