GB2263489B - A drill bit - Google Patents
A drill bitInfo
- Publication number
- GB2263489B GB2263489B GB9201200A GB9201200A GB2263489B GB 2263489 B GB2263489 B GB 2263489B GB 9201200 A GB9201200 A GB 9201200A GB 9201200 A GB9201200 A GB 9201200A GB 2263489 B GB2263489 B GB 2263489B
- Authority
- GB
- United Kingdom
- Prior art keywords
- drill bit
- drill
- bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
- Sampling And Sample Adjustment (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9201200A GB2263489B (en) | 1992-01-21 | 1992-01-21 | A drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9201200A GB2263489B (en) | 1992-01-21 | 1992-01-21 | A drill bit |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9201200D0 GB9201200D0 (en) | 1992-03-11 |
GB2263489A GB2263489A (en) | 1993-07-28 |
GB2263489B true GB2263489B (en) | 1995-03-22 |
Family
ID=10708934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9201200A Expired - Fee Related GB2263489B (en) | 1992-01-21 | 1992-01-21 | A drill bit |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2263489B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2306987B (en) * | 1995-11-04 | 1999-08-11 | Xcalibre Equipment Ltd | Drill chuck |
GB9522651D0 (en) | 1995-11-04 | 1996-01-03 | Xcalibre Equipment Ltd | Drill chuck |
BE1013336A3 (en) * | 2000-03-01 | 2001-12-04 | Diamant Boart Nv | Tubular drill. |
US6908264B1 (en) * | 2002-11-06 | 2005-06-21 | William P. Gundy | Quick change drill bit |
GB2437961B (en) * | 2006-05-06 | 2008-06-25 | Geoffrey Kevin Ellison | Environmental improvements for drilling on landfill sites |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4657445A (en) * | 1984-03-12 | 1987-04-14 | Joseph Bossler | Core drill and method of removing a core therefrom |
-
1992
- 1992-01-21 GB GB9201200A patent/GB2263489B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4657445A (en) * | 1984-03-12 | 1987-04-14 | Joseph Bossler | Core drill and method of removing a core therefrom |
Also Published As
Publication number | Publication date |
---|---|
GB2263489A (en) | 1993-07-28 |
GB9201200D0 (en) | 1992-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20110121 |