DE58909164D1 - Teleskop-Bohrgestänge. - Google Patents
Teleskop-Bohrgestänge.Info
- Publication number
- DE58909164D1 DE58909164D1 DE58909164T DE58909164T DE58909164D1 DE 58909164 D1 DE58909164 D1 DE 58909164D1 DE 58909164 T DE58909164 T DE 58909164T DE 58909164 T DE58909164 T DE 58909164T DE 58909164 D1 DE58909164 D1 DE 58909164D1
- Authority
- DE
- Germany
- Prior art keywords
- inner rod
- string
- telescopic drill
- drill pipe
- adjacent
- 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
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 230000035939 shock Effects 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
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)
- Drilling Tools (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8815738U DE8815738U1 (de) | 1988-12-19 | 1988-12-19 | Teleskop-Bohrgestänge |
Publications (1)
Publication Number | Publication Date |
---|---|
DE58909164D1 true DE58909164D1 (de) | 1995-05-11 |
Family
ID=6830918
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8815738U Expired DE8815738U1 (de) | 1988-12-19 | 1988-12-19 | Teleskop-Bohrgestänge |
DE58909164T Expired - Fee Related DE58909164D1 (de) | 1988-12-19 | 1989-12-18 | Teleskop-Bohrgestänge. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8815738U Expired DE8815738U1 (de) | 1988-12-19 | 1988-12-19 | Teleskop-Bohrgestänge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0374788B1 (de) |
AT (1) | ATE120829T1 (de) |
DE (2) | DE8815738U1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116537751A (zh) * | 2023-07-05 | 2023-08-04 | 黑龙江省水利学校(黑龙江水利高级技工学校) | 一种水文地质孔施工用填砾料输送管及施工方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8815738U1 (de) * | 1988-12-19 | 1989-02-02 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz | Teleskop-Bohrgestänge |
US5263899A (en) * | 1990-06-12 | 1993-11-23 | Hitachi Construction Machinery Co., Ltd. | Cylindrical telescopic kelly-bar apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3460619A (en) * | 1967-02-27 | 1969-08-12 | Byron Jackson Inc | Hydraulically locked adjustable tail pipe for well tools |
US3517760A (en) * | 1968-03-22 | 1970-06-30 | Delmag Maschinenfabrik | Telescopic drill rods for soil drilling equipments |
DE2057101C2 (de) * | 1970-11-20 | 1974-03-07 | Wirth Co Kg Masch Bohr | Teleskop-Bohrgestänge |
DE8815738U1 (de) * | 1988-12-19 | 1989-02-02 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz | Teleskop-Bohrgestänge |
-
1988
- 1988-12-19 DE DE8815738U patent/DE8815738U1/de not_active Expired
-
1989
- 1989-12-18 AT AT89123365T patent/ATE120829T1/de not_active IP Right Cessation
- 1989-12-18 DE DE58909164T patent/DE58909164D1/de not_active Expired - Fee Related
- 1989-12-18 EP EP89123365A patent/EP0374788B1/de not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116537751A (zh) * | 2023-07-05 | 2023-08-04 | 黑龙江省水利学校(黑龙江水利高级技工学校) | 一种水文地质孔施工用填砾料输送管及施工方法 |
CN116537751B (zh) * | 2023-07-05 | 2023-09-08 | 黑龙江省水利学校(黑龙江水利高级技工学校) | 一种水文地质孔施工用填砾料输送管及施工方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0374788A2 (de) | 1990-06-27 |
EP0374788B1 (de) | 1995-04-05 |
EP0374788A3 (de) | 1991-03-13 |
ATE120829T1 (de) | 1995-04-15 |
DE8815738U1 (de) | 1989-02-02 |
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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 |