DE8903038U1 - - Google Patents
Info
- Publication number
- DE8903038U1 DE8903038U1 DE8903038U DE8903038U DE8903038U1 DE 8903038 U1 DE8903038 U1 DE 8903038U1 DE 8903038 U DE8903038 U DE 8903038U DE 8903038 U DE8903038 U DE 8903038U DE 8903038 U1 DE8903038 U1 DE 8903038U1
- Authority
- DE
- Germany
- 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
Links
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8903038U DE8903038U1 (es) | 1989-03-13 | 1989-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8903038U DE8903038U1 (es) | 1989-03-13 | 1989-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8903038U1 true DE8903038U1 (es) | 1989-05-18 |
Family
ID=6837019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8903038U Expired DE8903038U1 (es) | 1989-03-13 | 1989-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8903038U1 (es) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4113898A1 (de) * | 1991-04-27 | 1992-10-29 | Weatherford Prod & Equip | Zentriereinrichtung fuer bohr- und futterrohre |
| WO2004101949A1 (en) * | 2003-05-14 | 2004-11-25 | Halliburton Energy Services, Inc. | Limit clamp for use with casing attachments |
| US7140432B2 (en) | 2000-09-06 | 2006-11-28 | 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 |
| US10113372B2 (en) | 2013-07-30 | 2018-10-30 | Weatherford Technology Holdings, Llc | Centralizer |
| US10280695B2 (en) | 2014-06-27 | 2019-05-07 | Weatherford Technology Holdings, Llc | Centralizer |
-
1989
- 1989-03-13 DE DE8903038U patent/DE8903038U1/de not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4113898A1 (de) * | 1991-04-27 | 1992-10-29 | Weatherford Prod & Equip | Zentriereinrichtung fuer bohr- und futterrohre |
| EP0512154A1 (de) * | 1991-04-27 | 1992-11-11 | Weatherford Oil Tool GmbH | Zentriereinrichtung für Bohr- und Futterrohre " |
| US7140432B2 (en) | 2000-09-06 | 2006-11-28 | 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 |
| US7182131B2 (en) | 2000-09-06 | 2007-02-27 | Casetech International, Inc. | Dual diameter and rotating centralizer/sub and method |
| WO2004101949A1 (en) * | 2003-05-14 | 2004-11-25 | Halliburton Energy Services, Inc. | Limit clamp for use with casing attachments |
| US6957704B2 (en) | 2003-05-14 | 2005-10-25 | Halliburton Energy Services Inc. | Limit clamp for use with casing attachments |
| US10113372B2 (en) | 2013-07-30 | 2018-10-30 | Weatherford Technology Holdings, Llc | Centralizer |
| US10280695B2 (en) | 2014-06-27 | 2019-05-07 | Weatherford Technology Holdings, Llc | Centralizer |