Direction control assembly for directional drilling of wellbore

The direction control assembly includes a housing having a longitudinal axis, a mandrel having a front connecting end and a rear connecting end, the mandrel passing through the housing and being arranged in a first position coaxial with the longitudinal axis of the housing, the deflector device is c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FARRA, JOHN, HARRISON, JR, LASATER JEFFREY BOWDEN, SUTHERLAND GEORGE BRIAN, ALTHOFF GARY DEAN
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The direction control assembly includes a housing having a longitudinal axis, a mandrel having a front connecting end and a rear connecting end, the mandrel passing through the housing and being arranged in a first position coaxial with the longitudinal axis of the housing, the deflector device is configured to exert a lateral force on the mandrel to offset the front connecting end of the mandrel from the longitudinal axis, and the tool face assembly is configured to rotate the front connecting end of the mandrel into a desired direction. 控向组件包括具有纵向轴线的壳体、具有前部连接端和后部连接端的心轴、偏转器装置以及工具面组件,心轴穿过壳体并布置在与壳体的纵向轴线同轴的第一位置中,偏转器装置被配置为在心轴上施加侧向力以将心轴的前部连接端从纵向轴线偏移,工具面组件被配置为将心轴的前部连接端旋转到期望的方向中。