公开(公告)号：EP1206623A1

公开(公告)日：2002-05-22

申请号：EP00962040.2

申请日：2000-08-02

申请人： Frank's International, Inc.

发明人： LATIOLAIS, Burney, Jr. ,  HAWKINS, Samuel, P., II ,  LUTGRING, Keith, T.

IPC分类号： E21B33/16 ,  E21B43/00

CPC分类号： E21B29/00 ,  E21B17/14 ,  E21B33/1204 ,  E21B33/16

摘要： A drillable, anti-rotation device (10) for limiting the rotation of a downhole tool, such as a cement plug, when drilling out the downhole tool. The drillable, anti-rotation device (10) comprises a drillable sleeve (12) connected within a non-drillable outer tubular member (20) connected within a pipe string. The sleeve (12) has one or more grooves (46) or other indentation, and/or one or more ribs (14) or other protrusions extending inwardly within the interior of the device for gripping or otherwise retarding the rotation of such downhole tool.

公开(公告)号：EP1206623B1

公开(公告)日：2007-04-25

申请号：EP00962040.2

申请日：2000-08-02

申请人： Frank's International, Inc.

发明人： LATIOLAIS, Burney, Jr. ,  HAWKINS, Samuel, P., II ,  LUTGRING, Keith, T.

IPC分类号： E21B33/16 ,  E21B43/00 ,  E21B33/12 ,  G01N1/12

CPC分类号： E21B29/00 ,  E21B17/14 ,  E21B33/1204 ,  E21B33/16

摘要： A drillable, anti-rotation device (10) for limiting the rotation of a downhole tool, such as a cement plug, when drilling out the downhole tool. The drillable, anti-rotation device (10) comprises a drillable sleeve (12) connected within a non-drillable outer tubular member (20) connected within a pipe string. The sleeve (12) has one or more grooves (46) or other indentation, and/or one or more ribs (14) or other protrusions extending inwardly within the interior of the device for gripping or otherwise retarding the rotation of such downhole tool.