Feeding device for solid foam discharging rod

The invention discloses a feeding device for a solid foam discharging rod, and belongs to the technical field of natural gas collection. The feeding device comprises an upper pressure measuring valve mounted at the top of a natural gas collecting tree, and the top of the upper pressure measuring val...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NIU JUNSHUAI, LU LEI, GE PENGFEI, AI JINGJING, FANG CHAO, ZHANG YONGLONG, ZAN QINGHAI, DUAN XIAOQIANG, PENG LISHA
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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