S type directional well drag reduction drilling tool

The utility model relates to a S type directional well drilling tool technical field is a S type directional well drag reduction drilling tool. Including drilling rod, drill collar, screw rod and thedrill bit that is the S form, the drilling rod, drill collar, screw rod and the drill bit top -down t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LI JUNSHENG, JIANG CHAOMIN, SONG ZHAOHUI, LUO LIANG, WAN JIAOYU, DING HONG, YUAN XINWEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model relates to a S type directional well drilling tool technical field is a S type directional well drag reduction drilling tool. Including drilling rod, drill collar, screw rod and thedrill bit that is the S form, the drilling rod, drill collar, screw rod and the drill bit top -down that are S form be in the same place according to preface fixed mounting, and the drilling rod thatis the S form includes flex point section and flex point section down, the outside of last flex point section flex point section under and respectively fixed mounting have the gyro wheel stabilizer. The utility model has the advantages of reasonable and compact structure, convenient to use, through the roll of gyro wheel on the gyro wheel stabilizer, the drilling rod that will be S form and the sliding friction of the wall of a well change the rolling friction of gyro wheel and the wall of a well into to reduce the frictional resistance of drilling tool. 本实用新型涉及S型定向井钻具技术领域,是种S型定向井减阻钻具。包括呈S状的钻杆、钻铤、螺杆和钻头;呈S状的钻杆、钻铤、螺杆和钻头自