CN202100225U - Impacting fishing head - Google Patents
Impacting fishing head Download PDFInfo
- Publication number
- CN202100225U CN202100225U CN2011201985197U CN201120198519U CN202100225U CN 202100225 U CN202100225 U CN 202100225U CN 2011201985197 U CN2011201985197 U CN 2011201985197U CN 201120198519 U CN201120198519 U CN 201120198519U CN 202100225 U CN202100225 U CN 202100225U
- Authority
- CN
- China
- Prior art keywords
- main body
- fishing
- body sleeve
- head
- impacting
- 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
Images
Abstract
The utility model provides an impacting fishing head, belonging to an appliance for fishing an underground tool and apparatus of an oil well in an oil field. The impacting fishing head is provided with an upper joint, wherein the inner side of the upper joint is installed with a main body sleeve, the main body sleeve is internally provided with a center rod, the upper end of the center rod is provided with a convex head, the upper end of the main body sleeve is provided with a petal-shaped baffle head, a barrel body is arranged outside the lower part of the main body sleeve, a capture claw is installed at the lower part of the center rod by a pressing cover, a baffle ring is fixed at the inner side of the lower end of the main body sleeve, and a spring between the baffle ring and the barrel body is sheathed outside the main body sleeve. The fishing head is reasonable in structure, releases the spring during fishing to generate stronger impact force, and is beneficial to clamping an object to be fished, so that the stopping probability of a fisher is reduced, and the fishing success rate is improved. The impacting fishing head is particularly suitable for fishing a stopper of an eccentric layering water injection well, and can be used for fishing the other underground apparatus and tool with an umbrella-shaped step.
Description
Technical field
The utility model provides a kind of utensil that is used to salvage oilfield downhole tool, instrument.
Background technology
When equipment or instrument drop on oil well or well down-hole, use fisher that it is salvaged usually.At present, the fishing head on the fisher that use in the oil field is the slip-type fishing head, and it generally has two split type slips, and these two slips are longitudinal spliced in a cylindrical shell.When this fisher being sent into the down-hole and when being salvaged thing and contact,, being salvaged thing and often can not aim at the center of the bullet of each slips formation exactly because its impact force is less; But incite somebody to action a slice slips jack-up wherein; About two slips just can not be realized synchronously, thereby each slips is scattered, can not block being salvaged thing; Even block reluctantly, salvaged thing also to fall once more easily.This just causes the poor reliability of salvaging, and success rate is low, and the salvaging effect is undesirable.
Summary of the invention
The utility model technical problem to be solved is a kind of impact fishing head to be provided, to improve fishing success ratio.
The utility model is achieved in that the impact fishing head, and it has top connection; Top connection is inboard to be installed together with the main body sleeve, in the main body sleeve center-pole is arranged, and there is plush copper the center-pole upper end; There is flap retaining head main body sleeve upper end, and there is cylindrical shell main body lower cartridge outside, catches pawl and is installed in the center-pole bottom through gland; Inboard, main body sleeve lower end is fixed with baffle ring, has spring housing to be contained in main body sleeve outside between baffle ring and the cylindrical shell.
Adopt the fishing head of said structure, rational in infrastructure, spring discharges during salvaging, produces bigger impact force, helps blocking and is salvaged thing, thereby reduced the probability that is hampered of fisher, has improved the success rate of salvaging.Be particularly suitable for the salvaging of eccentric separate water injection well blanking plug, also can be used for the salvaging of the downhole instrument instrument of other band umbrella shape step.
Description of drawings
Fig. 1 is the sketch map of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing further specifies the utility model.
Shown in accompanying drawing, the impact fishing head of the utility model, it has top connection 2; Top connection is inboard to be installed together with main body sleeve 6, and center-pole 8 is arranged in the main body sleeve, and there is plush copper 3 the center-pole upper end; There is flap retaining 4 main body sleeve upper end, and there is cylindrical shell 10 main body lower cartridge outside, catches pawl 12 and is installed in the center-pole bottom through gland 11; Inboard, main body sleeve lower end is fixed with baffle ring 7, has spring 9 to be sleeved on main body sleeve outside between baffle ring and the cylindrical shell.
During use, this fishing head links together with the fisher main body through the installing hole 1 on top connection top.Before the salvaging, the plush copper 3 of center-pole upper end withstands on the inboard of flap retaining head, makes itself and main body sleeve link together, and spring is in confined state.When running into by the salvaging thing, center-pole receives the bump of the umbrella shape step of being salvaged the thing upper end, moves on the center-pole; Plush copper no longer withstands on the inboard of flap retaining head, and flap retaining head contracts under the effect of pretightning force, loses stopping the main body sleeve; Spring discharges; Produce impact force, drive main body sleeve, cylindrical shell move down fast, and the feasible umbrella shape step of being salvaged on the thing sticks into reliably catches in the pawl.The structure of catching pawl is similar with existing split-type fishing head.
The bottom of top connection is a cylindrical body 5.
Claims (1)
1. the impact fishing head is characterized in that, it has top connection (2); Top connection is inboard to be installed together with main body sleeve (6), and center-pole (8) is arranged in the main body sleeve, and there is plush copper (3) the center-pole upper end; There is flap retaining head (4) main body sleeve upper end, and there is cylindrical shell (10) main body lower cartridge outside, catches pawl (12) and is installed in the center-pole bottom through gland (11); Inboard, main body sleeve lower end is fixed with baffle ring (7), has spring (9) to be sleeved on main body sleeve outside between baffle ring and the cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201985197U CN202100225U (en) | 2011-06-03 | 2011-06-03 | Impacting fishing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201985197U CN202100225U (en) | 2011-06-03 | 2011-06-03 | Impacting fishing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100225U true CN202100225U (en) | 2012-01-04 |
Family
ID=45386241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201985197U Expired - Fee Related CN202100225U (en) | 2011-06-03 | 2011-06-03 | Impacting fishing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863790A (en) * | 2019-11-06 | 2020-03-06 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
| CN114482904A (en) * | 2022-02-10 | 2022-05-13 | 中国石油化工股份有限公司 | Jet pump core coring device and coring method |
-
2011
- 2011-06-03 CN CN2011201985197U patent/CN202100225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863790A (en) * | 2019-11-06 | 2020-03-06 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
| CN110863790B (en) * | 2019-11-06 | 2022-03-01 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
| CN114482904A (en) * | 2022-02-10 | 2022-05-13 | 中国石油化工股份有限公司 | Jet pump core coring device and coring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202100225U (en) | Impacting fishing head | |
| CN201620796U (en) | Fisher for downhole chocks | |
| CN202866673U (en) | Clamping claw type release connector | |
| CN107969396B (en) | A kind of fishhook device | |
| CN204476333U (en) | Compression rotation type salvages anchor | |
| CN102278086A (en) | Spearhead-fishing anti-fall structure | |
| CN209195319U (en) | A kind of mechanical reciprocating shocking type flow controller unsealing tool | |
| CN204175261U (en) | A kind of restriction choke | |
| CN203614066U (en) | Ball suspension recyclable drilling well track measuring instrument running tool | |
| CN104563931B (en) | Enter under well-drilling borehole trajectory measurement instrument, reclaim tool kit | |
| CN203230366U (en) | Oil field downhole fallen object salvage barrel | |
| CN202100224U (en) | Expansible instrument fishing collar | |
| CN106639947A (en) | Large-scale fishing cylinder | |
| CN204252903U (en) | Steel wire well testing bumper jar | |
| CN208456543U (en) | Hydraulic retractable fishing spear | |
| CN103161418A (en) | Hook fishing device for oil gas well | |
| CN208702372U (en) | Multifunctional protection type blanking plug | |
| CN105484691A (en) | Downhole pressure plugging tool capable of being fished out | |
| CN206144481U (en) | Anchoring means for oil pipe | |
| CN204252905U (en) | Fishing device | |
| CN204002668U (en) | The light junk in down-hole drags for and obtains aid | |
| CN211201824U (en) | Anti-clamping type negative pressure bailing barrel with inner fishing head | |
| RU157182U1 (en) | CATCHER OF A GEOPHYSICAL INSTRUMENT IN A WELL | |
| CN2849134Y (en) | New type fishing tool | |
| CN203175451U (en) | Novel underground fishing tool for oil field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20120603 |