GB255754A - Improvements in or relating to fishing tools for use in well drilling operations - Google Patents
Improvements in or relating to fishing tools for use in well drilling operationsInfo
- Publication number
- GB255754A GB255754A GB503726A GB503726A GB255754A GB 255754 A GB255754 A GB 255754A GB 503726 A GB503726 A GB 503726A GB 503726 A GB503726 A GB 503726A GB 255754 A GB255754 A GB 255754A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tool
- drilling operations
- well drilling
- relating
- axis
- 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 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000000717 retained effect Effects 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
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
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
255,754. Hinderliter, F. J. Feb. 22, 1926 Borehole apparatus. - A fishing tool for use in well drilling operations has bypasses 30 leading past the gripping means 21 to reduce the effect of gas &c. pressure on the tool. The gripping means comprise serrated segments 21 held together by a snap ring 22 and pressed by a spring 23 which is retained by a collar 24 connected to the tool bv a bayonet joint and locked by a screw. Above the ring 24, the body of the tool is hollowed and a pin 31 limits relative movement of the article to be gripped. The lower end of the tool is bell-mouthed, cut away at an angle and eccentric to the axis of the connecting pin 10, the lowest point 15 of the tool being nearest said axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB503726A GB255754A (en) | 1926-02-22 | 1926-02-22 | Improvements in or relating to fishing tools for use in well drilling operations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB503726A GB255754A (en) | 1926-02-22 | 1926-02-22 | Improvements in or relating to fishing tools for use in well drilling operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB255754A true GB255754A (en) | 1926-07-29 |
Family
ID=9788553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB503726A Expired GB255754A (en) | 1926-02-22 | 1926-02-22 | Improvements in or relating to fishing tools for use in well drilling operations |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB255754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302539A (en) * | 2020-10-26 | 2021-02-02 | 邹城兖矿泰德工贸有限公司 | Reinforced borer |
| CN113775308A (en) * | 2021-09-18 | 2021-12-10 | 成都百胜野牛科技有限公司 | Applicator and downhole tool string |
-
1926
- 1926-02-22 GB GB503726A patent/GB255754A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302539A (en) * | 2020-10-26 | 2021-02-02 | 邹城兖矿泰德工贸有限公司 | Reinforced borer |
| CN112302539B (en) * | 2020-10-26 | 2021-08-06 | 邹城兖矿泰德工贸有限公司 | Reinforced borer |
| CN113775308A (en) * | 2021-09-18 | 2021-12-10 | 成都百胜野牛科技有限公司 | Applicator and downhole tool string |
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