Blowout preventer for high-temperature high-pressure hot spring drilling of core drill

The utility model discloses a blowout preventer for high-temperature and high-pressure hot spring drilling of a core drill. The blowout preventer comprises a blowout preventer body and a drill rod, wherein the blowout preventer body is of a cylindrical structure capable of accommodating the length o...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG JIFA, GONG PIREN, MA YANBO, WU HUANHENG, LIU QIANG, WANG CHANGBAO, TAN WEI, XU ZHENG, YUAN LEI, YANG JUN, LI MIANDONG, ZHANG MAOCHUN, HU XIAORONG, CHEN XIN, YUE ZHOU, XIANG MINGZHI, LUO YI, YANG JIN, GUO HUA, HE HAIQING
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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