IT8483388A0 - Utensile per fori di grande diametro. - Google Patents
Utensile per fori di grande diametro.Info
- Publication number
- IT8483388A0 IT8483388A0 IT8483388A IT8338884A IT8483388A0 IT 8483388 A0 IT8483388 A0 IT 8483388A0 IT 8483388 A IT8483388 A IT 8483388A IT 8338884 A IT8338884 A IT 8338884A IT 8483388 A0 IT8483388 A0 IT 8483388A0
- Authority
- IT
- Italy
- Prior art keywords
- tool
- large diameter
- diameter holes
- holes
- diameter
- Prior art date
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
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8483388A IT1181199B (it) | 1984-07-13 | 1984-07-13 | Utensile per fori di grande diametro |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8483388A IT1181199B (it) | 1984-07-13 | 1984-07-13 | Utensile per fori di grande diametro |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8483388A0 true IT8483388A0 (it) | 1984-07-13 |
IT1181199B IT1181199B (it) | 1987-09-23 |
Family
ID=11321139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8483388A IT1181199B (it) | 1984-07-13 | 1984-07-13 | Utensile per fori di grande diametro |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1181199B (it) |
-
1984
- 1984-07-13 IT IT8483388A patent/IT1181199B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1181199B (it) | 1987-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950725 |