公开(公告)号：EP3247865A1

公开(公告)日：2017-11-29

申请号：EP15876047.0

申请日：2015-12-22

申请人： Antelope Oil Tool & Mfg. Co., LLC

发明人： ROGER, Greg, P. ,  MUSSELWHITE, Jeff ,  LIRETTE, Brent, James ,  LEVIE, Iain

IPC分类号： E21B17/10 ,  E21B23/00 ,  E21B7/20

CPC分类号： E21B17/1028

摘要： A centralizer assembly and method for manufacturing a centralizer assembly. The centralizer assembly includes a mandrel including a first raised region having a first diameter, and a turned-down region having a second diameter, the second diameter being smaller than the first diameter. The centralizer assembly also includes a first stop segment extending at least partially around the mandrel in the turned-down region, and a centralizer disposed at least partially in the turned-down region. The first stop segment is received between axial extents of the centralizer, to limit a range of motion of the centralizer relative to the mandrel.