GB630049A - Improvements in or relating to a rotary impact drill - Google Patents
Improvements in or relating to a rotary impact drillInfo
- Publication number
- GB630049A GB630049A GB2307247A GB2307247A GB630049A GB 630049 A GB630049 A GB 630049A GB 2307247 A GB2307247 A GB 2307247A GB 2307247 A GB2307247 A GB 2307247A GB 630049 A GB630049 A GB 630049A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- secured
- cam
- drill stem
- vanes
- 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
Links
- 238000005553 drilling Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/10—Down-hole impacting means, e.g. hammers continuous unidirectional rotary motion of shaft or drilling pipe effecting consecutive impacts
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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
630,049. Well boring equipment. STEVENS, A. H. (Snyder Oil Tool Corporation). Aug. 20, 1947, No. 23072. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 20, 1947.] [Class 85] A rotary impact drill has secured to a bit 17a cam 28 engaging another cam 31 secured to a perforated sleeve capable of freely rotating about a continuously rotating drill stem 11. Rotation of this sleeve is impeded by vanes 37 projecting into the drilling fluid 19 so that differential rotation occurs between the two cams so that the tube 36 rises to drop suddenly so imparting a blow to the bit. The vanes may be either continuous or interrupted vertical strips, right or left helices or rows of rods. The upper cam can be spring - biassed and the sleeve 37 secured to the lower cam which is free to rotate, the upper cam having a splined connection with the drill stem. Rubber or metal bushes secured either to the drill stem or the sleeve 36 position the upper end of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2307247A GB630049A (en) | 1947-08-20 | 1947-08-20 | Improvements in or relating to a rotary impact drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2307247A GB630049A (en) | 1947-08-20 | 1947-08-20 | Improvements in or relating to a rotary impact drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB630049A true GB630049A (en) | 1949-10-04 |
Family
ID=10189677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2307247A Expired GB630049A (en) | 1947-08-20 | 1947-08-20 | Improvements in or relating to a rotary impact drill |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB630049A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306600A (en) * | 2013-06-27 | 2013-09-18 | 深圳市百勤石油技术有限公司 | Cam-type axial rotary punching tool |
-
1947
- 1947-08-20 GB GB2307247A patent/GB630049A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306600A (en) * | 2013-06-27 | 2013-09-18 | 深圳市百勤石油技术有限公司 | Cam-type axial rotary punching tool |
| CN103306600B (en) * | 2013-06-27 | 2016-02-10 | 深圳市百勤石油技术有限公司 | The axial instrument that spins of a kind of cam-type |
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