CA2223517A1 - Mill guide and anchor assembly for subterranean well casings - Google Patents
Mill guide and anchor assembly for subterranean well casingsInfo
- Publication number
- CA2223517A1 CA2223517A1 CA002223517A CA2223517A CA2223517A1 CA 2223517 A1 CA2223517 A1 CA 2223517A1 CA 002223517 A CA002223517 A CA 002223517A CA 2223517 A CA2223517 A CA 2223517A CA 2223517 A1 CA2223517 A1 CA 2223517A1
- Authority
- CA
- Canada
- Prior art keywords
- casing
- mill
- anchor
- mill guide
- milling pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003801 milling Methods 0.000 abstract 6
- 239000012530 fluid Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/0411—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for anchoring tools or the like to the borehole wall or to well tube
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Supports For Pipes And Cables (AREA)
- Crushing And Grinding (AREA)
Abstract
A retrievable mill guide and anchor assembly is provided for use in forming a side wall window in a vertical subterranean well casing for subsequent connection to the casing of a lateral bore liner member extending through the casing window. The mill guide extends upwardly from the top end or the anchor. With the assembly in its run-in orientation, a milling pipe with a first mill bit on its lower end is releasably locked within the upper mill guide end, and pressurized fluid within the milling pipe is used to hydraulically set the anchor in the casing. After the anchor is set, the first mill bit is rotated, lowered and deflected by the mill guide to engage and form an initial opening in the casing side wall. The milling pipe is then removed from the casing, the first mill bit is replaced with a second mill bit, and a specially designed retrieval collet is installed on the milling pipe. The milling pipe is then lowered into the casing, and the second mill bit is used in conjunction with the mill guide to enlarge the casing side wall opening to the final desired window size. The retrieval collet is then latched into the upper mill guide end and pulled up to sequentially release the anchor and pull the mill guide and anchor assembly out of the casing with the milling pipe.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/759,508 | 1996-12-05 | ||
| US08/759,508 US5832997A (en) | 1996-12-05 | 1996-12-05 | Retrievable milling guide anchor apparatus and associated methods |
| US08/779,146 | 1997-01-03 | ||
| US08/779,146 US5829518A (en) | 1996-12-05 | 1997-01-03 | Mill guide and anchor assembly for subterranean well casings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2223517A1 true CA2223517A1 (en) | 1998-06-05 |
| CA2223517C CA2223517C (en) | 2004-02-24 |
Family
ID=27116689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002223517A Expired - Fee Related CA2223517C (en) | 1996-12-05 | 1997-12-04 | Mill guide and anchor assembly for subterranean well casings |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0846837B1 (en) |
| AU (1) | AU4689197A (en) |
| BR (1) | BR9707749A (en) |
| CA (1) | CA2223517C (en) |
| DE (1) | DE69726098T2 (en) |
| DK (1) | DK0846837T3 (en) |
| NO (1) | NO314153B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835648B (en) * | 2013-11-06 | 2016-06-15 | 北京中煤矿山工程有限公司 | One improves rock stratum performance mine shaft rising boring technique by surface grout injection |
| US11333004B2 (en) | 2020-06-03 | 2022-05-17 | Weatherford Technology Holdings, Llc | Piston initiator for sidetrack assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1970761A (en) * | 1932-10-03 | 1934-08-21 | John Eastman | Whipstock |
| US2586878A (en) * | 1947-05-08 | 1952-02-26 | Eastman Oil Well Survey Co | Drilling apparatus |
| US4436150A (en) * | 1981-09-28 | 1984-03-13 | Otis Engineering Corporation | Bridge plug |
| GB2299114A (en) * | 1992-10-19 | 1996-09-25 | Baker Hughes Inc | Single trip milling tool |
| US5335737A (en) * | 1992-11-19 | 1994-08-09 | Smith International, Inc. | Retrievable whipstock |
| WO1995023274A1 (en) * | 1994-02-23 | 1995-08-31 | Tiw Corporation | Retrievable whipstock arrangement and method |
| US5564503A (en) * | 1994-08-26 | 1996-10-15 | Halliburton Company | Methods and systems for subterranean multilateral well drilling and completion |
-
1997
- 1997-12-04 CA CA002223517A patent/CA2223517C/en not_active Expired - Fee Related
- 1997-12-04 AU AU46891/97A patent/AU4689197A/en not_active Abandoned
- 1997-12-04 NO NO19975626A patent/NO314153B1/en unknown
- 1997-12-05 DK DK97309894T patent/DK0846837T3/en active
- 1997-12-05 BR BR9707749A patent/BR9707749A/en not_active IP Right Cessation
- 1997-12-05 EP EP97309894A patent/EP0846837B1/en not_active Expired - Lifetime
- 1997-12-05 DE DE69726098T patent/DE69726098T2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69726098T2 (en) | 2004-08-26 |
| CA2223517C (en) | 2004-02-24 |
| NO975626D0 (en) | 1997-12-04 |
| DK0846837T3 (en) | 2004-03-22 |
| NO975626L (en) | 1998-06-08 |
| AU4689197A (en) | 1998-06-11 |
| EP0846837A2 (en) | 1998-06-10 |
| BR9707749A (en) | 1999-06-01 |
| DE69726098D1 (en) | 2003-12-18 |
| NO314153B1 (en) | 2003-02-03 |
| EP0846837A3 (en) | 2001-10-17 |
| EP0846837B1 (en) | 2003-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |