BE510410A - - Google Patents
Info
- Publication number
- BE510410A BE510410A BE510410DA BE510410A BE 510410 A BE510410 A BE 510410A BE 510410D A BE510410D A BE 510410DA BE 510410 A BE510410 A BE 510410A
- Authority
- BE
- Belgium
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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1053123X | 1951-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE510410A true BE510410A (en) |
Family
ID=7717685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE510410D BE510410A (en) | 1951-04-05 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE510410A (en) |
| FR (1) | FR1053123A (en) |
| NL (2) | NL87581C (en) |
-
0
- NL NL7709718.A patent/NL167484B/en unknown
- NL NL87581D patent/NL87581C/xx active
- BE BE510410D patent/BE510410A/xx unknown
-
1952
- 1952-03-27 FR FR1053123D patent/FR1053123A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL87581C (en) | |
| NL167484B (en) | |
| FR1053123A (en) | 1954-02-01 |