BE501533A - - Google Patents
Info
- Publication number
- BE501533A BE501533A BE501533DA BE501533A BE 501533 A BE501533 A BE 501533A BE 501533D A BE501533D A BE 501533DA BE 501533 A BE501533 A BE 501533A
- Authority
- BE
- Belgium
- Prior art keywords
- groove
- drawer
- spool
- piston
- fluid
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 37
- 230000006837 decompression Effects 0.000 claims description 16
- 238000009527 percussion Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007787 solid Substances 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
- E21B1/12—Percussion drilling with a reciprocating impulse member
- E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
- E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (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)
- Multiple-Way Valves (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501533A true BE501533A (enrdf_load_stackoverflow) |
Family
ID=143325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501533D BE501533A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE501533A (enrdf_load_stackoverflow) |
-
0
- BE BE501533D patent/BE501533A/fr unknown
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