Ejection-proof slip device

The utility model discloses an ejection-proof slip device, which comprises an ejection-proof joint and a pressure plate, wherein the pressure plate sleeves on the upper part of the ejection-proof joint; inner threads are formed on the upper part of the ejection-proof joint, and outer threads are for...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG SHUQIANG, QI SHENGPING, CHEN CHEN, FAN CHAOPENG, WU YICHEN, LI NING, JIA ZUOMIN, FU YONGHUA, QU DENGHUI, ZHANG ZHIYUAN, HUANG QIU, XU JING, WANG ZHAOQING, CHEN JUNJIE, YU YABO, SUN TONGTONG, HAN YAOLONG, SUN HE, CHEN GUO, FU LIANBIN
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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