DE69524109D1 - centering - Google Patents
centeringInfo
- Publication number
- DE69524109D1 DE69524109D1 DE69524109T DE69524109T DE69524109D1 DE 69524109 D1 DE69524109 D1 DE 69524109D1 DE 69524109 T DE69524109 T DE 69524109T DE 69524109 T DE69524109 T DE 69524109T DE 69524109 D1 DE69524109 D1 DE 69524109D1
- Authority
- DE
- Germany
- Prior art keywords
- centering
- 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.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9419313A GB9419313D0 (en) | 1994-09-24 | 1994-09-24 | Centralisers |
US08/388,603 US5566754A (en) | 1994-09-24 | 1995-02-14 | Centralisers |
PCT/GB1995/002272 WO1996009459A1 (en) | 1994-09-24 | 1995-09-25 | Centralisers |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69524109D1 true DE69524109D1 (en) | 2002-01-03 |
DE69524109T2 DE69524109T2 (en) | 2002-06-06 |
Family
ID=26305686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69524109T Expired - Fee Related DE69524109T2 (en) | 1994-09-24 | 1995-09-25 | centering |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0782660B1 (en) |
CN (1) | CN1159848A (en) |
AU (1) | AU691665B2 (en) |
BR (1) | BR9509169A (en) |
CA (1) | CA2198619C (en) |
DE (1) | DE69524109T2 (en) |
WO (1) | WO1996009459A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2316422A (en) * | 1996-08-24 | 1998-02-25 | Weatherford Lamb | Centralizer |
GB9715006D0 (en) * | 1997-07-15 | 1997-09-24 | Weatherford Lamb | Centralizer |
GB2331534B (en) | 1998-02-23 | 2000-01-19 | Weatherford Lamb | Centralizer |
CA2322631C (en) | 1998-03-05 | 2007-09-18 | Austoil Technology Limited | An axle, a friction reducing fitting and an axle installation method |
EP1144796B1 (en) | 1999-01-22 | 2004-01-02 | Weatherford/Lamb, Inc. | Friction reducing tool and method for its use in a wellbore |
EP4107358A4 (en) * | 2020-02-18 | 2024-04-03 | Kwik Zip Pty Ltd | A spacer segment and a spacer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1997880A (en) * | 1932-03-25 | 1935-04-16 | Louis T Watry | Guide coupling |
US2389906A (en) * | 1944-02-03 | 1945-11-27 | Willis J Heard | Rod guide |
US2602512A (en) * | 1949-02-12 | 1952-07-08 | Baker Oil Tools Inc | Casing centering device |
US2622684A (en) * | 1950-01-26 | 1952-12-23 | Kluck Louis | Rib type casing centralizer |
GB682362A (en) * | 1950-12-18 | 1952-11-05 | Baker Oil Tools Inc | A centring device for centring conduits and the like in well bores |
US3666013A (en) * | 1969-12-30 | 1972-05-30 | Texaco Inc | Reinforced concrete stabilizer for an insulated tubing string in a secondary recovery steam stimulation operation |
US3762472A (en) * | 1972-07-24 | 1973-10-02 | Gem Oil Tool Co | Casing stand-off band for use during the running and cementing of casing in wellbores |
CA1231642A (en) * | 1985-02-22 | 1988-01-19 | Raymond F. Mikolajczyk | Casing centralizer/stabilizer |
US5377751A (en) * | 1992-01-29 | 1995-01-03 | Rickert Precision Industries | Apparatus and method for centralizing downhole pipe and blast joints |
-
1995
- 1995-09-25 WO PCT/GB1995/002272 patent/WO1996009459A1/en active IP Right Grant
- 1995-09-25 AU AU35705/95A patent/AU691665B2/en not_active Expired
- 1995-09-25 BR BR9509169A patent/BR9509169A/en not_active IP Right Cessation
- 1995-09-25 CN CN 95195249 patent/CN1159848A/en active Pending
- 1995-09-25 DE DE69524109T patent/DE69524109T2/en not_active Expired - Fee Related
- 1995-09-25 CA CA002198619A patent/CA2198619C/en not_active Expired - Lifetime
- 1995-09-25 EP EP95932810A patent/EP0782660B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0782660B1 (en) | 2001-11-21 |
WO1996009459A1 (en) | 1996-03-28 |
CA2198619C (en) | 2005-08-02 |
CA2198619A1 (en) | 1996-03-28 |
EP0782660A1 (en) | 1997-07-09 |
CN1159848A (en) | 1997-09-17 |
BR9509169A (en) | 1997-09-30 |
AU691665B2 (en) | 1998-05-21 |
AU3570595A (en) | 1996-04-09 |
DE69524109T2 (en) | 2002-06-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |