Annular blind hole orientation perforator

The utility model is suitable for the technical field of oil well completion perforation, and provides an annular blind hole orientation perforator which comprises a gun body, a bullet carrier assembly, a tensioning disc and perforating bullets. The bullet frame assembly comprises a bullet frame, an...

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Bibliographische Detailangaben
Hauptverfasser:	LEE SANG-KEOL, YANG XIZHI, XU XIN, LIN LIMING, LI AOWEI, WANG HAO, LI BIHONG, HUO YONG, WANG ZHAO, YANG JIALE, MENG CHUNXUE, ZHAO WENJIE, ZHANG YIKUI, CHEN ZHENG, LU KUN, TIAN BIN, WANG FENG, WANG XI
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 is suitable for the technical field of oil well completion perforation, and provides an annular blind hole orientation perforator which comprises a gun body, a bullet carrier assembly, a tensioning disc and perforating bullets. The bullet frame assembly comprises a bullet frame, an upper positioning disc assembly and a lower positioning disc assembly. The upper positioning disc assembly comprises an upper bearing outer sleeve and an upper positioning disc, and the upper bearing outer sleeve and the upper positioning disc are connected through a standard deep groove ball bearing. The lower positioning disc assembly is provided with a lower bearing outer sleeve and a lower positioning disc, the lower bearing outer sleeve and the lower positioning disc are connected through a standard deep groove ball bearing, and the tensioning disc is fixedly installed at the bottom of the lower positioning disc. The bullet carrier is a circular steel pipe, and a plurality of perforating bullet loading holes