DE275245C - - Google Patents
Info
- Publication number
- DE275245C DE275245C DENDAT275245D DE275245DA DE275245C DE 275245 C DE275245 C DE 275245C DE NDAT275245 D DENDAT275245 D DE NDAT275245D DE 275245D A DE275245D A DE 275245DA DE 275245 C DE275245 C DE 275245C
- Authority
- DE
- Germany
- Prior art keywords
- drum
- drilling
- drill
- shaft
- jaws
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 241000947840 Alteromonadales Species 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 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
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
- E21B1/04—Devices for reversing the movement of the rod or cable at the surface
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)
- Drilling And Boring (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE275245C true DE275245C (enrdf_load_stackoverflow) |
Family
ID=531545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT275245D Active DE275245C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE275245C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT275245D patent/DE275245C/de active Active
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