A hold angle screw rod drilling tool for big displacement directional well

The utility model discloses a hold angle screw rod drilling tool for big displacement directional well, the brill is personally experienced sth. Part of the body by the valve body, is prevented falling assembly, motor assembly, cardan shaft assembly and transmission shaft assembly and constitutes, t...

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU FENG, ZHOU PING, KONG JINWEI, GUO YUBING, DAI HONGBO, PIAO XINGLU, YIN BING, XIA CHUNYU, LI MUHENG, SONG ZHIWEI, CHEN DAOFU
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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