DOWNHOLE APPARATUS

A coupling (126) connects an inner string (124) to a lower end of a bore-lining tubing, such as a liner (118). The coupling (126) includes a catcher (160) and may be provided in combination with at least one member for translating through the inner string (124) and landing in the catcher (160). The...

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Bibliographische Detailangaben
Hauptverfasser:	BRUCE, Stephen Edmund, HORN, Tristam Paul, SHAND, David Michael, REYNOLDS, Tyler Rhes
Format:	Patent
Sprache:	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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Beschreibung
Zusammenfassung:	A coupling (126) connects an inner string (124) to a lower end of a bore-lining tubing, such as a liner (118). The coupling (126) includes a catcher (160) and may be provided in combination with at least one member for translating through the inner string (124) and landing in the catcher (160). The member may be an occluding member, such as a ball (136) for 10 occluding a flow passage through the coupling (126).