panier de repêchage à circulation inverse

Désignations

Codes : pays ou zone où la désignation a cours (CH, FR, DE, EU = Union européenne, INT = usage international). Une désignation barrée est déconseillée.

Définitions

anglais

A special junk basket that is lowered into the hole to a position over the junk with normal circulation. A ball is then pumped down to cause the drilling fluid to exit through nozzles in the tool so that reverse circulation occurs and creates a vacuum inside the tool so that the junk is sucked into it.