BOREHOLE TOOL TO EXTEND CASING AND METHOD FOR CASING EXTENSION WITH ITS USE

FIELD: mining engineering.SUBSTANCE: group of inventions refers to tools for drilling and completion of wells. The tool contains an extension module and a drive module for driving the expansion module and performing the expansion. The drive module comprises a central pipe, an intermediate pipe and a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PEN Chzhigan, NIN Syujtao, MA Tszyanchzhun, TAN Min, U Lyugen, TEN Chzhaochzhen, CHZHU Khajbo, LI Zuosyuj, TSAI Pen, TAN Chenlej, CHZHU Vanshen, SHEN Syujsyan
Format:	Patent
Sprache:	eng ; rus
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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