BE484816A - - Google Patents
Info
- Publication number
- BE484816A BE484816A BE484816DA BE484816A BE 484816 A BE484816 A BE 484816A BE 484816D A BE484816D A BE 484816DA BE 484816 A BE484816 A BE 484816A
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR953145T | 1947-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE484816A true BE484816A (en]) |
Family
ID=9486955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE484816D BE484816A (en]) | 1947-09-15 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE484816A (en]) |
| FR (1) | FR953145A (en]) |
-
0
- BE BE484816D patent/BE484816A/xx unknown
-
1947
- 1947-09-15 FR FR953145D patent/FR953145A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR953145A (fr) | 1949-11-30 |