公开(公告)号：EP2521833A2

公开(公告)日：2012-11-14

申请号：EP11700197.4

申请日：2011-01-06

申请人： Halliburton Energy Services, Inc.

发明人： MANKE, Kevin, Ray ,  MARTIN, Tracy, M. ,  CLAYTON, Robert, Preston

IPC分类号： E21B17/06

CPC分类号： E21B17/06 ,  E21B31/00 ,  E21B31/007 ,  E21B31/18

摘要： A downhole tool releasing mechanism which includes a collet for releasably engaging a mandrel of a downhole tool. A retaining band is circumferentially disposed about the fingers of the collet for maintaining engagement of the collet and the mandrel prior to application of a predetermined axially directed force on the releasing mechanism. Upon application of such a force the collet fingers expand, breaking the shear band, the mandrel is released and the downhole tool is disengaged.

公开(公告)号：EP2521833B1

公开(公告)日：2014-04-30

申请号：EP11700197.4

申请日：2011-01-06

申请人： Halliburton Energy Services, Inc.

发明人： MANKE, Kevin, Ray ,  MARTIN, Tracy, M. ,  CLAYTON, Robert, Preston

IPC分类号： E21B31/00 ,  E21B31/18 ,  E21B17/06

CPC分类号： E21B17/06 ,  E21B31/00 ,  E21B31/007 ,  E21B31/18