LAUNCHING TOOL FOR OBJECTS DOWNHOLE

The invention comprises a tool for launching objects downhole, such as one or more plugs in a desired sequence. The movements leading to the release of the individual plugs are regulated by virtue of displacement of o il through at least one orifice. The wiper plugs are retained in the tool until su...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SMITH, SIDNEY K., JR
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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