Full-metal seal dual-pipe steam injection well head device used for inclined shaft

The invention discloses a full-metal seal dual-pipe steam injection well head device used for an inclined shaft, and relates to the technical field of oil exploitation. A production casing pipe is sleeved with a surface layer casing pipe, the top of the surface layer casing pipe is welded with a sim...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GUO CONG, MA RUI, WANG DONGSHENG, LIU FUDONG, LIU WENKE, LEI GUANGCAI, LI XUEYE, JIANG CHAO, LEI YUEXIN
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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