BE717985A - - Google Patents
Info
- Publication number
- BE717985A BE717985A BE717985DA BE717985A BE 717985 A BE717985 A BE 717985A BE 717985D A BE717985D A BE 717985DA BE 717985 A BE717985 A BE 717985A
- Authority
- BE
- Belgium
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
- 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
- E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
-
- 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
- E21B17/18—Pipes provided with plural fluid passages
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- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
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)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1558971A DE1558971C3 (de) | 1967-07-12 | 1967-07-12 | Vorrichtung zum Überlagerungsbohren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE717985A true BE717985A (en:Method) | 1968-12-16 |
Family
ID=5677427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE717985D BE717985A (en:Method) | 1967-07-12 | 1968-07-12 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE717985A (en:Method) |
| CH (1) | CH474659A (en:Method) |
| DE (1) | DE1558971C3 (en:Method) |
| FR (1) | FR1578238A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3032107A1 (de) * | 1980-08-22 | 1982-04-01 | Andreas Dr.-Ing. 1000 Berlin Hampe | Erdwaermeaustauscherelement |
| DE102015103678A1 (de) * | 2015-03-13 | 2016-09-15 | August Reiners Bauunternehmung GmbH | Vortriebsbohrvorrichtung zum Setzen von Rohrschirmsystemen, Rohrschirmrohr und Muffe |
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1967
- 1967-07-12 DE DE1558971A patent/DE1558971C3/de not_active Expired
-
1968
- 1968-07-08 CH CH1038668A patent/CH474659A/de not_active IP Right Cessation
- 1968-07-11 FR FR1578238D patent/FR1578238A/fr not_active Expired
- 1968-07-12 BE BE717985D patent/BE717985A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH474659A (de) | 1969-06-30 |
| DE1558971C3 (de) | 1974-01-24 |
| DE1558971A1 (de) | 1970-07-30 |
| DE1558971B2 (de) | 1973-06-20 |
| FR1578238A (en:Method) | 1969-08-14 |