FIXED THROTTLE VALVE FOR SAND CONTROL

Disclosed is a fixed throttle valve for sand control, comprising a throttle assembly, a sand control assembly and a locking assembly. The throttle assembly comprises a valve body and a throttle nozzle, and the throttle nozzle is provided in the valve body. The sand control assembly comprises an inne...

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Bibliographische Detailangaben
Hauptverfasser:	WAN, Renjun, FENG, Yonghui, ZOU, Yong, MENG, Fanlong, CHEN, Bihui, CHANG, Helin, CHEN, Yongliang, CHEN, Wei
Format:	Patent
Sprache:	chi ; eng ; fre
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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a fixed throttle valve for sand control, comprising a throttle assembly, a sand control assembly and a locking assembly. The throttle assembly comprises a valve body and a throttle nozzle, and the throttle nozzle is provided in the valve body. The sand control assembly comprises an inner tube, an outer tube and a fixing member, the outer tube is sleeved on the outer side of the inner tube, and the inner tube and the outer tube are connected by means of the fixing member; and the sand control assembly is provided in the valve body and is connected to the throttle nozzle. The locking assembly comprises a union plug, a union nut and a pressure relief valve, the union plug is partially arranged in the valve body and is connected to the inner tube, the union nut is sleeved on the outer side of the union plug and is connected to the valve body, and the pressure relief valve is provided at the end part of the union plug. Une vanne d'étranglement fixe pour la régulation de sable, comprenant un ensemble d