NL42651C - - Google Patents
Info
- Publication number
- NL42651C NL42651C NL42651DA NL42651C NL 42651 C NL42651 C NL 42651C NL 42651D A NL42651D A NL 42651DA NL 42651 C NL42651 C NL 42651C
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL451825X | 1935-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42651C true NL42651C (en) |
Family
ID=19786315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL42651D NL42651C (en) | 1935-01-23 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2073263A (en) |
| GB (1) | GB451825A (en) |
| NL (1) | NL42651C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2553032A (en) * | 1948-10-11 | 1951-05-15 | Security Engineering Co Inc | Coring bit |
| US2783969A (en) * | 1953-04-14 | 1957-03-05 | Int Minerals & Chem Corp | Method and apparatus for cutting cores |
| BE1011199A3 (en) * | 1997-06-09 | 1999-06-01 | Dresser Ind | Core drill |
| SE517190C2 (en) * | 1999-08-24 | 2002-05-07 | Atlas Copco Rocktech Ab | Locking device for a link core drill, link core drilling device and method for link core drilling |
| GB0806094D0 (en) * | 2008-04-04 | 2008-05-14 | Corpro Systems Ltd | Core sampling apparatus and method |
| CN102155176A (en) * | 2011-03-04 | 2011-08-17 | 中南大学 | Waterproof rock soil core drilling tool |
| CA2784195C (en) | 2011-08-01 | 2014-08-05 | Groupe Fordia Inc. | Core barrel assembly including a valve |
| CN104806177B (en) * | 2015-03-03 | 2017-08-25 | 铁道第三勘察设计院集团有限公司 | A kind of rock core pipe assembly |
| CN106761513B (en) * | 2016-12-15 | 2019-04-12 | 中国地质科学院勘探技术研究所 | A kind of rope salvaging type coring drilling with keep up pressure drilling tool |
| CN109667557B (en) * | 2019-02-28 | 2023-04-25 | 湖南科技大学 | Standard coring device for breaking coal rock mass sample and construction method |
-
0
- NL NL42651D patent/NL42651C/xx active
-
1935
- 1935-03-29 US US13728A patent/US2073263A/en not_active Expired - Lifetime
- 1935-12-27 GB GB35846/35A patent/GB451825A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2073263A (en) | 1937-03-09 |
| GB451825A (en) | 1936-08-12 |