公开(公告)号：CA2596094C

公开(公告)日：2011-01-18

申请号：CA2596094

申请日：2007-08-03

Applicant: WEATHERFORD LAMB

Inventor： SULLIVAN MICHAEL ,  REDLINGER THOMAS M ,  HALFORD HUBERT E ,  BAILEY THOMAS F

IPC: E21B29/00 ,  B23C5/16 ,  E21B10/00 ,  E21B23/00

Abstract: A method and apparatus for milling an item in a wellbore. The method and apparatus including providing a milling tool having one or more blades which are geometrically configured to resist deflection by distributing cutting forces in multiple directions.

公开(公告)号：CA2492626C

公开(公告)日：2010-04-20

申请号：CA2492626

申请日：2005-01-14

Applicant: WEATHERFORD LAMB

Inventor： VUYK ADRIAN ,  SULLIVAN MICHAEL ,  HALFORD GENE ,  FINCH ROBERT ,  SCHNITKER MARK ,  FISHER JERRY ,  WINTERROWD KEN

IPC: E21B7/10 ,  E21B7/28 ,  E21B10/26 ,  E21B11/00 ,  E21B17/20 ,  E21B29/10 ,  E21B37/02 ,  E21B37/08 ,  E21B43/11

Abstract: Methods and apparatus for milling and/or broaching within a wellbore are disclosed. A flexible broach runs into the wellbore and is located adjacent a portion of the wellbore to be broached. The broach reciprocates axially within the wellbore and removes at least part of the portion to be broached. Weight may be coupled to the broach, thereby applying a resultant side load for broaching an offset portion of the wellbore. The broach comprises a flexible member that may be a bare cable. When an abrasive material is disposed on an outer surface of the flexible member, the flexible member may be a cable, a continuous rod, or pressurized coiled tubing. Alternatively, sleeves positioned on the flexible member may have an abrasive material on their outer surface. A rotational mill that is either coupled to the broach or run in separately from the broach can further mill the wellbore.

公开(公告)号：CA2596094A1

公开(公告)日：2008-02-08

申请号：CA2596094

申请日：2007-08-03

Applicant: WEATHERFORD LAMB

Inventor： SULLIVAN MICHAEL ,  BAILEY THOMAS F ,  REDLINGER THOMAS M ,  HALFORD HUBERT E

IPC: E21B29/00 ,  B23C5/16 ,  E21B10/00 ,  E21B23/00

Abstract: A method and apparatus for milling an item in a wellbore. The method and apparatus including providing a milling tool having one or more blades which are geometrically configured to resist deflection by distributing cutting forces in multiple directions.

公开(公告)号：GB2410045B

公开(公告)日：2007-03-14

申请号：GB0500651

申请日：2005-01-14

Applicant: WEATHERFORD LAMB

Inventor： VUYK ADRIAN ,  SULLIVAN MICHAEL ,  HALFORD GENE ,  FINCH ROBERT ,  SCHNITKER MARK ,  FISHER JERRY ,  WINTERROWD KEN

IPC: E21B29/10 ,  E21B7/10 ,  E21B10/26 ,  E21B17/20 ,  E21B37/02 ,  E21B37/08 ,  E21B43/11

Abstract: A method and apparatus for milling and/or broaching within a wellbore. A flexible broach runs into the wellbore and is located adjacent a portion of the wellbore to be broached. The broach reciprocates axially within the wellbore and removes at least part of the portion to be broached. Weight may be coupled to the broach, thereby applying a resultant side load for broaching an offset portion of the wellbore. The broach comprises a flexible member that may be a bare cable. When an abrasive material is disposed on an outer surface of the flexible member, the flexible member may be a cable, a continuous rod, or pressurized coiled tubing. Alternatively, sleeves positioned on the flexible member may have an abrasive material on their outer surface. A rotational mill that is either coupled to the broach or run in separately from the broach can further mill the wellbore.

公开(公告)号：CA2492626A1

公开(公告)日：2005-07-16

申请号：CA2492626

申请日：2005-01-14

Applicant: WEATHERFORD LAMB

Inventor： SCHNITKER MARK ,  FISHER JERRY ,  WINTERROWD KEN ,  FINCH ROBERT ,  HALFORD GENE ,  VUYK ADRIAN ,  SULLIVAN MICHAEL

IPC: E21B7/10 ,  E21B10/26 ,  E21B17/20 ,  E21B29/10 ,  E21B37/02 ,  E21B37/08 ,  E21B43/11 ,  E21B11/00 ,  E21B7/28

Abstract: Methods and apparatus for milling and/or broaching within a wellbore ar e disclosed. A flexible broach runs into the wellbore and is located adjacent a portion of the wellbore to be broached. The broach reciprocates axially within the wellbore and removes at least part of the portion to be broached. Weight may be coupl ed to the broach, thereby applying a resultant side load for broaching an offset portion of the wellbore. The broach comprises a flexible member that may be a bare cabl e. When an abrasive material is disposed on an outer surface of the flexible member, the flexible member may be a cable, a continuous rod, or pressurized coiled tubing. Alternatively, sleeves positioned on the flexible member may have an abrasi ve material on their outer surface. A rotational mill that is either coupled to the broach or run in separately from the broach can further mill the wellbore.

公开(公告)号：GB2440817B

公开(公告)日：2011-03-09

申请号：GB0715115

申请日：2007-08-06

Applicant: WEATHERFORD LAMB

Inventor： SULLIVAN MICHAEL ,  REDLINGER THOMAS M ,  HALFORD HUBERT EUGENE ,  BAILEY THOMAS F

IPC: E21B29/00 ,  E21B10/46 ,  E21B10/54 ,  E21B10/55 ,  E21B10/60

Abstract: A method and apparatus for milling an item in a wellbore. The method and apparatus including providing a milling tool having one or more blades which are geometrically configured to resist deflection by distributing cutting forces in multiple directions.

公开(公告)号：GB2440817A

公开(公告)日：2008-02-13

申请号：GB0715115

申请日：2007-08-06

Applicant: WEATHERFORD LAMB

Inventor： SULLIVAN MICHAEL ,  REDLINGER THOMAS M ,  HALFORD HUBERT EUGENE ,  BAILEY THOMAS F

IPC: E21B29/00 ,  E21B10/46 ,  E21B10/54 ,  E21B10/55 ,  E21B10/60

Abstract: A tool for milling an item in a wellbore includes a number of cutting blades 210 which protrude from a surface 208 of the tool. The blades 210 are attached to the face 208 in a non-planar configuration which can be in the form of an L-shape (fig 7). A reinforcing member 216 may be present to prevent buckling of the blades 210.

公开(公告)号：GB2410045A

公开(公告)日：2005-07-20

申请号：GB0500651

申请日：2005-01-14

Applicant: WEATHERFORD LAMB

Inventor： VUYK ADRIAN ,  SULLIVAN MICHAEL ,  HALFORD GENE ,  FINCH ROBERT ,  SCHNITKER MARK ,  FISHER JERRY ,  WINTERROWD KEN

IPC: E21B7/10 ,  E21B10/26 ,  E21B17/20 ,  E21B29/10 ,  E21B37/02 ,  E21B37/08 ,  E21B43/11

Abstract: A flexible broach 104 runs into the wellbore 100 and is located adjacent to a portion of the wellbore 100 to be broached. The broach 104 reciprocates axially within the wellbore 100 and removes at least part of the portion to be broached. A weight 114 may be coupled to the broach 104, thereby applying a resultant side load for broaching an offset portion of the wellbore 100. The broach 104 comprises a flexible member that may be a bare cable. When an abrasive material is disposed on an outer surface of the flexible member, the flexible member may be a cable, a continuous rod, or pressurized coiled tubing. Alternatively, sleeves positioned on the flexible member may have an abrasive material on their outer surface. A rotational mill that is either coupled to the broach or run in separately from the broach can further mill the wellbore 100.