DEVICE FOR PERFORATING WATER WELL PIPE CASINGS

A tool for perforating water well pipe casings is disclosed. The tool is designed for use with air rotary well drilling apparatus. The tool includes a slideable casing perforator wheel actuated by a pneumatic cylinder carried within the tool. The casing may be perforated and subsequent development o...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	JANNSEN, EDWARD M
Format:	Patent
Sprache:	eng ; fre
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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