公开(公告)号：CA2682316A1

公开(公告)日：2008-10-16

申请号：CA2682316

申请日：2008-04-04

Applicant: WEATHERFORD LAMB

Inventor： STULBERG MARTY ,  XU WEI ,  REDLINGER THOMAS M ,  CARTER THURMAN B ,  RHINEHART BILL ,  HALFORD HUBERT E

IPC: E21B10/26 ,  E21B10/32 ,  E21B29/10

Abstract: A method of removing a restriction in a tubular located in a well include s providing a drilling assembly with a drill bit and a reamer, the reamer ha ving a cutting structure for removing the restriction; drilling through a lo wer portion of the tubular; expanding the reamer at a location below the res triction; and urging the reamer back toward the restriction to remove the re striction.

公开(公告)号：CA2682316C

公开(公告)日：2013-02-19

申请号：CA2682316

申请日：2008-04-04

Applicant: WEATHERFORD LAMB

Inventor： RHINEHART BILL ,  STULBERG MARTY ,  CARTER THURMAN B ,  XU WEI ,  REDLINGER THOMAS M ,  HALFORD HUBERT E

IPC: E21B10/26 ,  E21B10/32 ,  E21B29/10

Abstract: A method of removing a restriction in a tubular located in a well includes providing a drilling assembly with a drill bit and a reamer, the reamer having a cutting structure for removing the restriction; drilling through a lower portion of the tubular; expanding the reamer at a location below the restriction; and urging the reamer back toward the restriction to remove the restriction.