Throttle nozzle structure, high-sulfur-resistance fixed underground throttler and fishing method thereof

The invention discloses a throttling nozzle structure, a high-sulfur-resistance fixed downhole throttler and a fishing method of the throttling nozzle structure, relates to the technical field of natural gas extraction, and solves the technical problems that an existing throttler is long in pressure...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG HUALI, YI DEZHENG, YU CHENGGANG, JIANG YUAN, YU BING, MA HUIYUN, WU YONG, FU YUKUN, YANG YONGTAO, YANG JIAN, LI KUI, DENG WU, LI MENGXUE
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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