Study on Sticking Motion of Torsional Impact Tool
DOI:
https://doi.org/10.53469/wjimt.2023.06(05).10Keywords:
Bohai Oilfield, Torsion Impactor, Field ApplicationAbstract
The mechanical model of stick-slip vibration system of PDC drill bit was established, the boundary conditions of drill bit stick-slip vibration were analyzed, the influencing factors of drill bit stick-slip mechanism were studied, and the transfer efficiency model of torsional impact energy was given. The analysis showed that the longer the length of PDC drill bit, the faster the energy attenuation, the lower the transfer efficiency of torsional impact energy, and the larger the cross-sectional area of PDC drill bit. The smaller the length is, the higher the energy transfer efficiency of the impact system of the high-frequency hydraulic oscillation pup joint tool is.
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