CA2329472A1 - Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion - Google Patents
Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion Download PDFInfo
- Publication number
- CA2329472A1 CA2329472A1 CA002329472A CA2329472A CA2329472A1 CA 2329472 A1 CA2329472 A1 CA 2329472A1 CA 002329472 A CA002329472 A CA 002329472A CA 2329472 A CA2329472 A CA 2329472A CA 2329472 A1 CA2329472 A1 CA 2329472A1
- Authority
- CA
- Canada
- Prior art keywords
- main well
- well flow
- flow conductor
- bushing
- window
- 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
Abstract
A guide bushing for use proximate a junction between a main well flow conductor and a lateral wellbore, said guide bushing comprising a tubular member having a predetermined inner diameter less than that of said main well flow conductor and an outer diameter sufficient substantially to centralize said guide bushing within said main well flow conductor. The tubular member having a bushing window defined in a sidewall thereof, said bushing window having a defined height thereof, said guide bushing locatable proximate said junction, said bushing window registerable with a main well flow conductor window, said guide bushing centralizing a tool having a diameter less than said predetermined inner diameter with respect to said main well flow conductor, said bushing window protecting a periphery of said main well flow conductor window from contact with said tool; and an anchoring structure coupled to said tubular member for fixing said tubular member at a predetermined location and orientation within said main well flow conductor.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38076895A | 1995-01-30 | 1995-01-30 | |
US08/380,768 | 1995-01-30 | ||
CA002156984A CA2156984C (en) | 1994-08-26 | 1995-08-25 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002156984A Division CA2156984C (en) | 1994-08-26 | 1995-08-25 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2329472A1 true CA2329472A1 (en) | 1996-02-27 |
CA2329472C CA2329472C (en) | 2006-03-14 |
Family
ID=25678124
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002329472A Expired - Lifetime CA2329472C (en) | 1995-01-30 | 1995-08-25 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
CA002329471A Expired - Lifetime CA2329471C (en) | 1995-01-30 | 1995-08-25 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002329471A Expired - Lifetime CA2329471C (en) | 1995-01-30 | 1995-08-25 | Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2329472C (en) |
-
1995
- 1995-08-25 CA CA002329472A patent/CA2329472C/en not_active Expired - Lifetime
- 1995-08-25 CA CA002329471A patent/CA2329471C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2329471C (en) | 2005-05-03 |
CA2329472C (en) | 2006-03-14 |
CA2329471A1 (en) | 1996-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20150825 |