Drilling and sampling drill rod

The utility model aims to solve the technical problem that a traditional drill rod cannot achieve linear drilling and driving under forces, so that the adverse influence on the sampling result is caused. In order to solve the problem, a drilling and sampling drill rod is provided. The drill rod is f...

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Bibliographische Detailangaben
Hauptverfasser:	WEI XIAOLI, GAN CUNTAO, ZHU ZHEN, SU JINHUA, GAN XINFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	The utility model aims to solve the technical problem that a traditional drill rod cannot achieve linear drilling and driving under forces, so that the adverse influence on the sampling result is caused. In order to solve the problem, a drilling and sampling drill rod is provided. The drill rod is formed by mutually connecting sub drill rods; sub drill rods comprise twisted drill rods sleeved by an external spiral sleeve; a supporting framework is arranged between the external spiral sleeve and the twisted drill rods. The drilling and sampling drill rod can be free from the influence of various external forces, can achieve linear drilling and driving, and does not cause the adverse influence on the sampling result.