GB206169A - Improvements in or relating to jars for use in rotary well drilling apparatus - Google Patents
Improvements in or relating to jars for use in rotary well drilling apparatusInfo
- Publication number
- GB206169A GB206169A GB27207/23A GB2720723A GB206169A GB 206169 A GB206169 A GB 206169A GB 27207/23 A GB27207/23 A GB 27207/23A GB 2720723 A GB2720723 A GB 2720723A GB 206169 A GB206169 A GB 206169A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head
- string
- faces
- threaded
- 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 title abstract 3
- 239000004519 grease 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
206,169. Kammerdiner, J. A. Oct. 30, 1922, [Convention date]. Bore-hole apparatus.-A jar for use in hydraulic rotary well-drilling comprises a. cylindrical shell 20 threaded to a lower head 15 and to. an upper head 7, the latter being connected at 6 to the upper part of the string of boring tubes; slidable through the lower head is a tubular T-member 21, the head 22 of which may be received in transverse pockets 12, 18 of the upper and lower heads 7, 15. The kwer faces of the head 22 of the T-member and the upper faces of the head 15 are correspondingly inclined. A conduit 23 is threaded to the T-member and slidably passes through the upper head 7. Grease is placed in the shell 20. In drilling, the head 22 of the T-member is engaged with the pocket 12 of the upper head 7 and the string is rotated. If the drill sticks, the upper part of the string is raised and turned until the head 22 engages the upper faces of the head 15 on which posts 19 are provided to limit the relative turning movement. An upward strain is then applied and the upper part of the string is rotated so as to cause the head 22 suddenly to engage the pocket 18 of the lower head and impart a jarring action.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US206169XA | 1922-10-30 | 1922-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB206169A true GB206169A (en) | 1924-09-04 |
Family
ID=21799629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27207/23A Expired GB206169A (en) | 1922-10-30 | 1923-10-30 | Improvements in or relating to jars for use in rotary well drilling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB206169A (en) |
-
1923
- 1923-10-30 GB GB27207/23A patent/GB206169A/en not_active Expired
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