DD123550A1 - - Google Patents
Info
- Publication number
- DD123550A1 DD123550A1 DD192527A DD19252776A DD123550A1 DD 123550 A1 DD123550 A1 DD 123550A1 DD 192527 A DD192527 A DD 192527A DD 19252776 A DD19252776 A DD 19252776A DD 123550 A1 DD123550 A1 DD 123550A1
- Authority
- DD
- German Democratic Republic
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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- 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
- E21B10/00—Drill bits
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD192527A DD123550A1 (ro) | 1976-04-27 | 1976-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD192527A DD123550A1 (ro) | 1976-04-27 | 1976-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD123550A1 true DD123550A1 (ro) | 1977-01-05 |
Family
ID=5504329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD192527A DD123550A1 (ro) | 1976-04-27 | 1976-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| DD (1) | DD123550A1 (ro) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1015000A5 (fr) * | 2000-07-21 | 2004-08-03 | Baker Hughes Inc | Trepan tournant et son procede de realisation. |
-
1976
- 1976-04-27 DD DD192527A patent/DD123550A1/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1015000A5 (fr) * | 2000-07-21 | 2004-08-03 | Baker Hughes Inc | Trepan tournant et son procede de realisation. |