CN203515430U - Internal falling object fisher for short pipe - Google Patents
Internal falling object fisher for short pipe Download PDFInfo
- Publication number
- CN203515430U CN203515430U CN201320694132.XU CN201320694132U CN203515430U CN 203515430 U CN203515430 U CN 203515430U CN 201320694132 U CN201320694132 U CN 201320694132U CN 203515430 U CN203515430 U CN 203515430U
- Authority
- CN
- China
- Prior art keywords
- opening window
- plate body
- falling object
- snap
- tool joint
- 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
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Abstract
The utility model discloses an internal falling object fisher for a short pipe. The fisher is characterized in that a drilling tool joint is connected with an out-opening window snap plate body through screw threads; out-opening window snap plates are arranged on the periphery of the out-opening window snap plate body, the lower part is streamline, an inner hole is formed in the center of the lower end, a central guiding support rod with a streamline lower part penetrates through the inner hole of the out-opening snap plate body and is connected with the drilling tool joint through screw threads, a wiper block is inlaid on the drilling tool joint, the lengths of the out-opening window snap plate body and the central guiding support plate as well as the density of the out-opening window snap body can be replaced or adjusted. During fishing for the falling object, when the central guiding support rod enters a fished short and light pipe and certain drilling pressure is applied, the streamline out-opening window snap plate body is easily centralized and enters the pipe-shaped falling object inclined to the well bottom, the snap plates on the out-opening snap plate body is extruded, deformed and contracted, the shorter and lighter falling object which cannot be grasped by tools such as a slip fishing spear and the like can be supported easily due to the characteristics of high strength, good elasticity and high support force of the out-opening snap plates, the fishing is realized, and the falling object is cleaned out.
Description
Technical field
The salvaging that the utility model relates to is relatively short in Process of Oil Well Drilling, the tubulose junks such as slightly irregular and outside salvaging borehole size is limited are located at light, thin-walled or the pipe end etc.
Background technology
When relatively short, light, thin-walled or the pipe end etc. being located the limited tubulose junk of slightly irregular and outside salvaging borehole size (routine milling pipe milling shoe, slip socket are dialled hook guide shoe etc.) and salvaged with instruments such as slips fishing spears in Process of Oil Well Drilling, because the weight of junk is lighter, slips fishing spear is grabbed tight junk because of the too light cause slips of junk after salvaging.If the pipe end etc. is located when irregular because junk tilts, the fishing tools such as slips fishing spear are difficult for entering in junk and easily cause salvaging unsuccessfully.When the limited junk of borehole size is salvaged from outside because not having suitable fishing tool may take the drop mode of thing or well filling sidetracking of milling to continue to creep into.This had both delayed a large amount of drilling times, had delayed again oil-gas exploration progress.
Summary of the invention
Problem for above-mentioned existence, the purpose of this utility model has aimed to provide fisher in a kind of short tube junk, this fisher has principle compressible and spreading elastic force according to the clamp of windowing and designs, and it can be salvaged relatively short, light, thin-walled or the pipe end etc. and locate be slightly irregularly tilted in shaft bottom and outsidely salvage the tubulose junks such as borehole size is limited.
The purpose of this utility model completes like this:
Fisher in short tube junk, mainly by tool joint, outward opening window clamp body, center guide support bar and wiper block, formed, tool joint and the screwed connection of outward opening window clamp body, outward opening window clamp body has outward opening window clamp around, it is streamlined that bottom becomes, center, lower end has endoporus, and bottom becomes fairshaped center guide support bar through endoporus and the tool joint screwed connection of outward opening window clamp body, studs with wiper block on tool joint.
The beneficial effect of advantage of the present utility model and generation is:
1, the utility model is simple in structure, be easy to processing, adopt conventional part assembling, guiding, righting enter the slightly irregular fishing tool that is tilted in bottom hole falling article in bottom, slightly irregular shaft bottom and the outside milling bit of salvaging the limited thin-walled tubulose junk of borehole size of being tilted in located at the on-the-spot pipe end etc. successfully salvaged, while applying, can greatly reduce post workman's labour intensity, improve timeliness, accelerate oil-gas exploration progress.
2, the utility model is one to have easy installing/dismounting and change accessory, and it is adjustable that size is salvaged by each portion, after salvaging, also can re-assembly, reuse, and safe and reliable fishing tool.
Accompanying drawing explanation
Fig. 1 is the utility model sectional view.
The specific embodiment
As shown in Figure 1, fisher in a kind of short tube junk, mainly by tool joint 1, outward opening window clamp body 2, center guide support bar 3 and wiper block 4, formed, tool joint 1 and the 2 use screwed connections of outward opening window clamp body, outward opening window clamp body 2 has outward opening window clamp around, and it is streamlined that bottom becomes, and center, lower end has endoporus, bottom becomes fairshaped center guide support bar 3 through endoporus and the tool joint 1 use screwed connection of outward opening window clamp body 2, studs with wiper block 4 on tool joint 1.
Outward opening window clamp body 2 adopts high strength linepipe through annealing in process, the clamp of windowing has that intensity is high, good springiness, feature that support force is strong, the length of outward opening window clamp body 2 and center guide support bar 3 can be adjusted replacing according to the length of salvaged junk and down-hole situation, also can to the density of the clamp of windowing and layout, adjust according to the concrete shape that is dragged for junk.
When center guide support bar 3 enter salvaged short, apply again certain the pressure of the drill while gently managing junk, the very easily righting entering in the tubulose junk that is tilted in shaft bottom of streamlined outward opening window clamp body 2, clamp on outward opening window clamp body 2 is extruded distortion and shrinks, because its clamp of windowing has that intensity is high, good springiness, feature that support force is strong can support easily the Tool graspers such as slips fishing spear not firm compared with short, compared with light junk, form effective salvaging, dispose junk.
Claims (1)
1. fisher in a short tube junk, mainly by tool joint (1), outward opening window clamp body (2), center guide support bar (3) and wiper block (4), formed, it is characterized in that: tool joint (1) and screwed connection for outward opening window clamp body (2), outward opening window clamp body (2) has outward opening window clamp around, it is streamlined that bottom becomes, center, lower end has endoporus, bottom becomes fairshaped center guide support bar (3) through endoporus and the screwed connection for tool joint (1) of outward opening window clamp body (2), studs with wiper block (4) on tool joint (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320694132.XU CN203515430U (en) | 2013-01-09 | 2013-10-26 | Internal falling object fisher for short pipe |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320072892 | 2013-01-09 | ||
| CN201320072892.7 | 2013-01-09 | ||
| CN201320694132.XU CN203515430U (en) | 2013-01-09 | 2013-10-26 | Internal falling object fisher for short pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515430U true CN203515430U (en) | 2014-04-02 |
Family
ID=50374377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320694132.XU Expired - Fee Related CN203515430U (en) | 2013-01-09 | 2013-10-26 | Internal falling object fisher for short pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285543A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Packer fishing tool |
-
2013
- 2013-10-26 CN CN201320694132.XU patent/CN203515430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285543A (en) * | 2015-06-04 | 2017-01-04 | 中国石油天然气股份有限公司 | Packer fishing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |