DE8421397U1 - - Google Patents
Info
- Publication number
- DE8421397U1 DE8421397U1 DE19848421397 DE8421397U DE8421397U1 DE 8421397 U1 DE8421397 U1 DE 8421397U1 DE 19848421397 DE19848421397 DE 19848421397 DE 8421397 U DE8421397 U DE 8421397U DE 8421397 U1 DE8421397 U1 DE 8421397U1
- 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/205—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19848421397 DE8421397U1 (el) | 1984-07-18 | 1984-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19848421397 DE8421397U1 (el) | 1984-07-18 | 1984-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8421397U1 true DE8421397U1 (el) | 1987-01-08 |
Family
ID=6768949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19848421397 Expired DE8421397U1 (el) | 1984-07-18 | 1984-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8421397U1 (el) |
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1984
- 1984-07-18 DE DE19848421397 patent/DE8421397U1/de not_active Expired