NL7107605A - - Google Patents
Info
- Publication number
- NL7107605A NL7107605A NL7107605A NL7107605A NL7107605A NL 7107605 A NL7107605 A NL 7107605A NL 7107605 A NL7107605 A NL 7107605A NL 7107605 A NL7107605 A NL 7107605A NL 7107605 A NL7107605 A NL 7107605A
- Authority
- NL
- Netherlands
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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7020472A FR2092646B2 (en) | 1970-06-03 | 1970-06-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL7107605A true NL7107605A (en) | 1971-12-07 |
| NL160358B NL160358B (en) | 1979-05-15 |
| NL160358C NL160358C (en) | 1979-10-15 |
Family
ID=9056651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7107605.A NL160358C (en) | 1970-06-03 | 1971-06-03 | DRILLING CHISEL. |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE767901R (en) |
| CA (1) | CA940911A (en) |
| FR (1) | FR2092646B2 (en) |
| GB (1) | GB1356294A (en) |
| NL (1) | NL160358C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2434922A1 (en) * | 1978-08-28 | 1980-03-28 | Inst Francais Du Petrole | DEVICE FOR REVERSE THE DIRECTION OF FLOW OF A FLUID AT A DRILLING TOOL |
| AUPN400195A0 (en) * | 1995-07-06 | 1995-07-27 | Aba-Sun Pty. Limited | Drilling apparatus |
| CN101029560B (en) * | 2007-03-27 | 2012-06-13 | 中国石油大学(华东) | Wellbottom rock-fragment abrasive jet-flowing drilling tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2849214A (en) * | 1954-09-02 | 1958-08-26 | Gulf Research Development Co | Borehole drilling apparatus for preventing lost circulation |
-
1970
- 1970-06-03 FR FR7020472A patent/FR2092646B2/fr not_active Expired
-
1971
- 1971-05-28 GB GB1797371A patent/GB1356294A/en not_active Expired
- 1971-06-01 BE BE767901A patent/BE767901R/en active
- 1971-06-02 CA CA114684A patent/CA940911A/en not_active Expired
- 1971-06-03 NL NL7107605.A patent/NL160358C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1356294A (en) | 1974-06-12 |
| NL160358C (en) | 1979-10-15 |
| DE2127661B2 (en) | 1976-12-09 |
| DE2127661A1 (en) | 1971-12-30 |
| CA940911A (en) | 1974-01-29 |
| FR2092646B2 (en) | 1973-12-21 |
| BE767901R (en) | 1971-12-01 |
| FR2092646A2 (en) | 1972-01-28 |
| NL160358B (en) | 1979-05-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NZ80 | Patents of addition are not granted since law of 1.1.78 |
Ref document number: 156781 Country of ref document: NL Date of ref document: 19780919 Format of ref document f/p: P |
|
| V3 | Additional patents lapsed at the same time as the main patent |