BE620678A - - Google Patents
Info
- Publication number
- BE620678A BE620678A BE620678DA BE620678A BE 620678 A BE620678 A BE 620678A BE 620678D A BE620678D A BE 620678DA BE 620678 A BE620678 A BE 620678A
- Authority
- BE
- Belgium
- Prior art keywords
- rod
- fitting
- annular
- steel
- drill
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 101100379081 Emericella variicolor andC gene Proteins 0.000 claims 1
- 244000105017 Vicia sativa Species 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910017818 Cu—Mg Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000008207 working material 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
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)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE620678A true BE620678A (pm) |
Family
ID=194028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE620678D BE620678A (pm) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE620678A (pm) |
-
0
- BE BE620678D patent/BE620678A/fr unknown
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