DE2656541A1 - Zentrierer zum zentrieren von rohrfoermigen teilen in bohrloechern - Google Patents
Zentrierer zum zentrieren von rohrfoermigen teilen in bohrloechernInfo
- Publication number
- DE2656541A1 DE2656541A1 DE19762656541 DE2656541A DE2656541A1 DE 2656541 A1 DE2656541 A1 DE 2656541A1 DE 19762656541 DE19762656541 DE 19762656541 DE 2656541 A DE2656541 A DE 2656541A DE 2656541 A1 DE2656541 A1 DE 2656541A1
- Authority
- DE
- Germany
- Prior art keywords
- longitudinal direction
- opening
- tab
- tabs
- ribbon spring
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 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
- 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
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
- E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
- E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/642,264 US4011907A (en) | 1975-12-19 | 1975-12-19 | Knockdown centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2656541A1 true DE2656541A1 (de) | 1977-06-23 |
Family
ID=24575870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762656541 Withdrawn DE2656541A1 (de) | 1975-12-19 | 1976-12-14 | Zentrierer zum zentrieren von rohrfoermigen teilen in bohrloechern |
Country Status (11)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133398A (en) * | 1977-02-28 | 1979-01-09 | Smith International, Inc. | Collapsible spider for use in supporting casing during upward drilling operations |
| US4241789A (en) * | 1978-05-12 | 1980-12-30 | Grosch Gottlieb W | Concrete wall casing with centralizers embedded therein |
| US4269269A (en) * | 1979-05-14 | 1981-05-26 | Halliburton Company | Lock tab for centralizer end ring |
| US4422504A (en) * | 1981-03-16 | 1983-12-27 | Moore Boyd B | Protective clamp assembly |
| US4520869A (en) * | 1983-09-29 | 1985-06-04 | Svenson Bert N | Centralizer for well casings |
| GB2179079A (en) * | 1985-08-15 | 1987-02-25 | William Hunt Engineers Limited | Well casing tools |
| US4651823A (en) * | 1986-05-19 | 1987-03-24 | Antelope Oil Tool & Mfg. Company | Centralizer |
| US4875524A (en) * | 1988-09-29 | 1989-10-24 | Halliburton Company | Casing centralizer |
| US4909322A (en) * | 1989-04-26 | 1990-03-20 | Davis-Lynch, Inc. | Casing centralizer |
| US5143154A (en) * | 1990-03-13 | 1992-09-01 | Baker Hughes Incorporated | Inflatable packing element |
| US5575333A (en) * | 1995-06-07 | 1996-11-19 | Weatherford U.S., Inc. | Centralizer |
| US7182131B2 (en) * | 2000-09-06 | 2007-02-27 | Casetech International, Inc. | Dual diameter and rotating centralizer/sub and method |
| US7156171B2 (en) * | 2000-09-06 | 2007-01-02 | Casetech International, Inc. | Dual diameter and rotating centralizer/sub |
| US6457519B1 (en) * | 2001-02-20 | 2002-10-01 | Antelope Oil Tool And Manufacturing Company, Inc. | Expandable centralizer |
| CN102359350B (zh) * | 2011-10-09 | 2013-09-18 | 中国海洋石油总公司 | 一种扶正器 |
| USD930046S1 (en) * | 2018-02-22 | 2021-09-07 | Vulcan Completion Products Uk Limited | Centralizer for centralizing tubing in a wellbore |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1801334A (en) * | 1926-01-11 | 1931-04-21 | Dalldorf Lloyd | Tailpiece for well tools |
| US2248160A (en) * | 1938-08-12 | 1941-07-08 | Earl L Crawford | Well apparatus |
| US2738019A (en) * | 1951-05-22 | 1956-03-13 | Atkinson Albert Edward | Devices for centralizing casing in boreholes |
| US2727576A (en) * | 1952-04-09 | 1955-12-20 | Jesse E Hall | Centralizers |
| US2728399A (en) * | 1953-12-10 | 1955-12-27 | Kluck Louis | Floating spring type casing centralizer |
| US2944603A (en) * | 1956-01-30 | 1960-07-12 | Baker Oil Tools Inc | Subsurface electric current generating apparatus |
| US3055432A (en) * | 1960-06-23 | 1962-09-25 | Baker Oil Tools Inc | Well conduit centering devices |
-
1975
- 1975-12-19 US US05/642,264 patent/US4011907A/en not_active Expired - Lifetime
-
1976
- 1976-10-20 CA CA263,815A patent/CA1053577A/en not_active Expired
- 1976-10-28 GB GB44929/76A patent/GB1564962A/en not_active Expired
- 1976-11-11 AR AR265422A patent/AR210378A1/es active
- 1976-11-23 MX MX167131A patent/MX143666A/es unknown
- 1976-12-01 NL NL7613365A patent/NL7613365A/xx not_active Application Discontinuation
- 1976-12-03 FR FR7636429A patent/FR2335690A1/fr active Granted
- 1976-12-06 BR BR7608147A patent/BR7608147A/pt unknown
- 1976-12-14 DE DE19762656541 patent/DE2656541A1/de not_active Withdrawn
- 1976-12-17 NO NO764279A patent/NO764279L/no unknown
- 1976-12-17 JP JP15100676A patent/JPS5296901A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4011907A (en) | 1977-03-15 |
| NL7613365A (nl) | 1977-06-21 |
| GB1564962A (en) | 1980-04-16 |
| AR210378A1 (es) | 1977-07-29 |
| FR2335690B1 (US06650917-20031118-M00005.png) | 1982-08-20 |
| NO764279L (US06650917-20031118-M00005.png) | 1977-06-21 |
| MX143666A (es) | 1981-06-22 |
| CA1053577A (en) | 1979-05-01 |
| FR2335690A1 (fr) | 1977-07-15 |
| JPS5296901A (en) | 1977-08-15 |
| BR7608147A (pt) | 1977-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |