High-temperature resistant thermal recovery packer

The utility model provides a high-temperature resistant thermal recovery packer, which is characterized by comprising an upper joint, a first-stage hydraulic cylinder, a first rubber bucket, a second rubber bucket, a second-stage hydraulic cylinder, a third rubber bucket, a third-stage hydraulic cyl...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TONG WENKE, LU GUOZHU, WANG SHUYIN, CAO XUEHONG
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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