Tool for grappling object falling from well wall

The utility model relates to a tool for grappling object falling from well walls, which is characterized in that the upper part of a core shaft 2 is connected with a scraping pulling device body 4, and the scraping pulling device body 4 is provided with a pulling scraper 1. The pulling scraper is pr...

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Bibliographische Detailangaben
Hauptverfasser:	YONG WANG, HONGSHENG ZHANG, QUANJIE MU
Format:	Patent
Sprache:	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 relates to a tool for grappling object falling from well walls, which is characterized in that the upper part of a core shaft 2 is connected with a scraping pulling device body 4, and the scraping pulling device body 4 is provided with a pulling scraper 1. The pulling scraper is provided with an elastic structure, the lower part of the core shaft 2 is connected with a grappling sub 3 and a guide shoe 4, and the grappling sub 3 and the guide shoe 4 are connected as integration via threads. The utility model has the advantages of simple structure, high grappling success ratio and simplified grappling procedure and cost.