公开(公告)号：EP1680349A4

公开(公告)日：2012-08-22

申请号：EP04795552

申请日：2004-10-19

申请人： FRANK S INR INC

发明人： LATIOLAIS BURNEY J JR ,  LUTGRING KEITH T ,  BRAXTON MOODY I V ,  SAICHUK JOHN K M ,  HAWKINS SAMUEL P III

IPC分类号： B66C1/00 ,  E21B19/10

CPC分类号： E21B19/12 ,  E21B19/02 ,  E21B19/06 ,  E21B19/10

摘要： Methods for gripping an oilfield tubular include engaging a band with a ring member to form a load ring. The band has an arcuate component with a gap separating first and second ends, an interior surface, and an inclined exterior surface. The ring member has an interior surface with a groove therein. The inclined exterior surface of the band is associated with the groove of the interior surface to form the load ring. The load ring can be engaged with an oilfield tubular, and a force can be applied such that the groove of the ring member engages the inclined exterior surface of the band for securing the load ring to the oilfield tubular.