Drilling system with a barrel drilling head driven by a downhole tractor,申请号AU20080243507-传众专利搜索

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发明名称	Drilling system with a barrel drilling head driven by a downhole tractor
摘要
申请公布号	AU2008243507(A1)	申请公布日期	2008.11.06
申请号	AU20080243507	申请日期	2008.04.28
申请人	WELLTEC A/S	发明人	JORGEN HALLUNDBAEK
分类号	E21B25/00;E21B4/18;E21B23/14;E21B49/02	主分类号	E21B25/00
代理机构		代理人
主权项
地址

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