Wellhead casing reinforcing device

The utility model belongs to the field of oil-gas field development, and particularly relates to a wellhead casing reinforcing device. A wellhead casing reinforcing device comprises an oil-string casing, a surface casing is arranged on the outer side of the lower end of the oil-string casing, and an...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG WENZHE, WANG TAO, ZHAO YI, MA ZHENFENG, LI WEIFENG, YANG QUANZHI, HOU YUNYI, CHI LIBIN
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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