VANE-TYPE POWER DRILLING TOOL FOR WELL

This invention discloses a kind of vane-type power drilling tool for anderground, and is suitable for use as a power drilling tool for underground in the exploration and exploitation of petroleum and natural gas. The principal grinding and sealing elements in the power section auch as vane body, wea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAN ZHENLU ET AL, YAN BO, ZHU GUOXIN
Format:	Patent
Sprache:	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:	This invention discloses a kind of vane-type power drilling tool for anderground, and is suitable for use as a power drilling tool for underground in the exploration and exploitation of petroleum and natural gas. The principal grinding and sealing elements in the power section auch as vane body, wear-rcsistant bodies and stator sliding blocks, all of them soft metal or wear-resistant materials are selected daring manufacturing, their structures are so selected that these elments possess the function of automatic compensation after being worn. Therefore, the vane-type power drilling tool has its service life raised and its suitable working scope expanded, i.e. it can be used both in shallow shaft or in extra-deep shaft undergroun.