Multifunctional hydraulic anchorage draining apparatus

The utility model relates to a downhole tool used for oil well operations in oil fields, in particular to a multi-functional hydraulic anchoring oil drain device which comprises a top joint, an oil drain pin, an oil drain pipe, a limit ring, anchor teeth, a long pressure plate, a short pressure plat...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GONG JIAYONG, CHEN MING, ZHOU JIANSHENG, LI JUN, DONG KEWU, SUN WEIMIN, GONG YUPENG, GONG YANGCHENG, LIU QINGSONG, BI SHENG, LUO JINGQUAN, PENG SEN, GAO YANLI, QIU KUNTAI, DAI DASHAN, QU YUCHENG, QIU JIE, QU YUBIN, LI JIANGHAO, WU ZUDE, DENG YANHUI
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!