COILED TUBING SET INFLATABLE PACKER, BRIDGE PLUG AND RELEASING TOOL THEREFOR

COILED TUBING SET INFLATABLE PACKER, BRIDGE PLUG AND RELEASING TOOL THEREFOR

A downhole inflatable packer comprises an adapter having an inflation port (162) therein, a mandrel (72) slidable within the adapter, the mandrel having an inflation port (160) therein which is alignable with port (162) of the adapter when packer inflation is required, the apparatus also including m...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MACLAUGHLIN, SCOTT T, LUBITZ, ERIC P
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 downhole inflatable packer comprises an adapter having an inflation port (162) therein, a mandrel (72) slidable within the adapter, the mandrel having an inflation port (160) therein which is alignable with port (162) of the adapter when packer inflation is required, the apparatus also including means (110,128) for retaining the mandrel in the inflating position which retaining means is pressure actuable to release the mandrel for it to move to a sealed position in which the inflation ports are not aligned. The retaining means can subsequently be re-engaged to hold the mandrel in the inflating position if required.