BE701391A - - Google Patents
Info
- Publication number
- BE701391A BE701391A BE701391DA BE701391A BE 701391 A BE701391 A BE 701391A BE 701391D A BE701391D A BE 701391DA BE 701391 A BE701391 A BE 701391A
- 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
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH59958A DE1275017B (de) | 1966-07-15 | 1966-07-15 | Bohreinrichtung, insbesondere zur bohrenden Gewinnung von Kohle |
| DE1966J0031663 DE1263652C2 (de) | 1966-08-27 | 1966-08-27 | Bohrverfahren und Bohrkopf zur Herstellung von Bohrungen, insbesondere grossen Durchmessers, in Mineralien, bevorzugt Kohle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE701391A true BE701391A (it) | 1968-01-15 |
Family
ID=25980473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE701391D BE701391A (it) | 1966-07-15 | 1967-07-14 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE701391A (it) |
| GB (1) | GB1196765A (it) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123160A (en) * | 1997-04-02 | 2000-09-26 | Baker Hughes Incorporated | Drill bit with gage definition region |
| US6206117B1 (en) | 1997-04-02 | 2001-03-27 | Baker Hughes Incorporated | Drilling structure with non-axial gage |
| CN107401376B (zh) * | 2017-08-21 | 2023-04-07 | 福建亿钻机械有限公司 | 一种可远程监控的水平定向钻机及水平钻洞方法 |
-
1967
- 1967-07-14 BE BE701391D patent/BE701391A/xx unknown
- 1967-07-14 GB GB3251567A patent/GB1196765A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1196765A (en) | 1970-07-01 |