发明申请
US20050126826A1 Directional casing and liner drilling with mud motor 审中-公开
定向套管和带泥浆马达的衬管钻孔

Directional casing and liner drilling with mud motor
摘要:
A directional casing drilling system includes a casing string, a mud motor operatively coupled to the casing string, a rotary steerable system operatively coupled to the mud motor, and a drill bit operatively coupled to the rotary steerable system.
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