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...

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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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Beschreibung
Zusammenfassung:	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 plurality of guide bars, a plurality of guide bars and a plurality of guide bars, wherein the inner wall of the core clamping seat is provided with a conical surface; the number of the clamping-breaking wedge blocks is the same as that of the windows, the inner wall of each clamping-breaking wedge block is a conical surface, positioning grooves are formed in the two opposite side faces of each clamping-breaking wedge block, and the two positioning grooves of each clamping-breaking wedge block are clamped into the two guide strips of the corresponding window respectively; the breaking wedge block can slide in the window so that the inner wall of the breaking wedge block can protrude relative to the inner wall of th