Flow diversion valve for downhole tool assembly

Flow diversion valve for downhole tool assembly

A flow diversion valve 324 for casing removal comprising a housing 340 comprising an opening 342, a housing port 339 through the housing and offset from the opening; a central bore 336; a flow diverter 350 inside the housing, the flow diverter being moveable between first and second positions which...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Adam M Bennett, Gavin Ray Packard, Richard Caminari, David A Stokes
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 flow diversion valve 324 for casing removal comprising a housing 340 comprising an opening 342, a housing port 339 through the housing and offset from the opening; a central bore 336; a flow diverter 350 inside the housing, the flow diverter being moveable between first and second positions which block and allow fluid communication between the housing port and the central bore; a flow switch 344 extending through the opening and configured to move the flow diverter from the first position to the second position. Also independently claimed is a system for removing casing having the flow diversion valve located between a jack and a mud motor and a spear.