公开(公告)号：EP2960426A2

公开(公告)日：2015-12-30

申请号：EP15173195.7

申请日：2015-06-22

申请人： Weatherford/Lamb, Inc.

发明人： RODRIQUE, Maxime R. ,  DUFRENE, Philip E. ,  MARTIN, Beau H. ,  KIESS, Christian ,  HELMS, Martin ,  KYZAR, Adam

IPC分类号： E21B17/10

CPC分类号： E21B17/1078 ,  E21B17/1028 ,  E21B33/14

摘要： A centralizer sub for cementing a tubular string in a wellbore includes: a tubular body; a centralizer disposed along an outer surface of the body and having a pair of collars and a plurality of bow springs connecting the collars; and a joint longitudinally linking the centralizer to the body. The joint has: a groove formed in and around the body outer surface, and a plurality of protrusions formed integrally with or mounted to one of the collars and extending into the groove.

公开(公告)号：EP2960426A3

公开(公告)日：2016-03-23

申请号：EP15173195.7

申请日：2015-06-22

申请人： Weatherford/Lamb, Inc.

发明人： RODRIQUE, Maxime R. ,  DUFRENE, Philip E. ,  MARTIN, Beau H. ,  KIESS, Christian ,  HELMS, Martin ,  KYZAR, Adam

IPC分类号： E21B17/10 ,  E21B33/14

CPC分类号： E21B17/1078 ,  E21B17/1028 ,  E21B33/14

摘要： A centralizer sub for cementing a tubular string in a wellbore includes: a tubular body; a centralizer disposed along an outer surface of the body and having a pair of collars and a plurality of bow springs connecting the collars; and a joint longitudinally linking the centralizer to the body. The joint has: a groove formed in and around the body outer surface, and a plurality of protrusions formed integrally with or mounted to one of the collars and extending into the groove.

摘要翻译： 用于将管柱固定在井眼中的扶正器子包括：管状体; 沿着所述主体的外表面设置并具有一对轴环和连接所述轴环的多个弓形弹簧的扶正器; 以及将所述扶正器纵向连接到所述主体的接头。 接头具有：形成在主体外表面中和周围的凹槽，以及多个突起，与突出部中的一个一体地形成或安装到该凹槽中并延伸到凹槽中。