Safety operation system for combustible gas at wellhead based on adjustable annular suction and assisted discharge

The invention provides a safety operation system for combustible gas at a wellhead based on adjustable annular suction and assisted discharge. The safety operation system comprises a sand draining pipeline, adjustable annular suction and assisted discharge mechanisms, an ignition device, a gas injec...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YANG XIAOFENG, DUAN MUBAI, FAN LIMING, LIAO BING, HE XIANJIE, ZHANG JICHUAN, DENG HU, LI LEI
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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