Reverse cone type core catcher

The utility model provides a reverse cone type core catcher which comprises a cylindrical core clamping seat, a plurality of guide bars, a plurality of guide bars, a plurality of guide bars, a plurality of guide bars, a plurality of guide bars, a plurality of guide bars, a plurality of guide bars, a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HU YULE, LIU NAIPENG, ZHANG HUI, YAO ZHENTONG, YANG YING, CHENG SHILONG, ZOU YONGLI
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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