Anti-rotation anchoring structure beneficial to drilling

The invention relates to the field of petroleum industry oil and gas production devices, in particular to an anti-rotation anchoring structure beneficial to drilling. The structure is used for a pressure bridge plug and comprises clips, clamping rings and a cone back ring. The eight clips are evenly...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG JIAN, ZOU GANG, ZHOU XIN, LI YINGHU, YANG XIAOCHENG
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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