CN203145881U - Refloatation covering milling tool - Google Patents
Refloatation covering milling tool Download PDFInfo
- Publication number
- CN203145881U CN203145881U CN 201320187822 CN201320187822U CN203145881U CN 203145881 U CN203145881 U CN 203145881U CN 201320187822 CN201320187822 CN 201320187822 CN 201320187822 U CN201320187822 U CN 201320187822U CN 203145881 U CN203145881 U CN 203145881U
- Authority
- CN
- China
- Prior art keywords
- milling tool
- refloatation
- covering
- cylindrical shell
- hook
- 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 relates to a refloatation covering milling tool which mainly solves the problems that fragments generated by an existing refloatation covering milling tool can not be discharged, so that lifting operation needs to be repeated, and a cable can not be refloated. The refloatation covering milling tool is characterized in that a plurality of fragment discharging grooves (5) are formed in the side wall of a cylinder body (2). An alloy head (4) is fixed at the lower end of a covering milling head (3). The middle portion of the cylinder body (2) is connected with a hook (6) with a sharp end capable of extending outside the cylinder body (2) through a rotary shaft (7). A spring (8) is connected between the other end of the hook (6) and the cylinder body (2). According to the refloatation covering milling tool, the fragments generated in the process of covering and milling can flow back upwards along with well liquid, so that the covering milling tool is prevented from being abraded, frequent lifting operation is avoided, and meanwhile, falling objects of ropes such as the cable can be refloated by the refloatation covering milling tool as well.
Description
Technical field
The utility model relates to the field, oil field, specifically a kind of salvaging packaged milling tool.
Background technology
In the petroleum drilling and mining operation, the drop situation in shaft bottom of downhole tool and cable takes place sometimes, at this moment need the down-hole object is salvaged, generally need overlap and mill and salvage downhole tool, the salvaging packaged milling tool that uses is overlapping the down-hole object when milling at present, and the chip that produces discharges nowhere and is deposited in together, time slightly length will influence the carrying out that the cover miller is done, need rountrip frequently, also accelerated to salvage the wearing and tearing of packaged milling tool, reduction of service life.Simultaneously, these salvage packaged milling tools can only salvage downhole tool, and can't salvage flexible junk such as cable, make salvage not thorough.
Summary of the invention
In order to overcome that chip that existing salvaging packaged milling tool produces discharges nowhere and the deficiency that needs rountrip frequently and can't salvage cable, the utility model provides a kind of salvaging packaged milling tool, the chip that this salvaging packaged milling tool can make cover produce when milling upwards backflows with well liquid, avoid the packaged milling tool that weares and teares, also avoid rountrip frequently, this salvaging packaged milling tool can also be salvaged rope class junks such as cable simultaneously.
The technical solution of the utility model is: a kind of salvaging packaged milling tool, comprise top connection, the top connection bottom is connected with cylindrical shell, cylindrical shell bottom adapter sleeve milling head, have several chip areas on the described cylinder lateral wall, fixedly there is the alloy head cover milling head lower end, and described cylindrical shell middle part is connected with the hook of most advanced and sophisticated extended cylindrical shell outside by rotating shaft, and is connected with spring between the other end of hook and the cylindrical shell.
The utlity model has following beneficial effect: owing to take such scheme, have chip area on the cylinder lateral wall, make that milling the chip that produces in the process at cover can together upwards backflow by chip area and well liquid, avoids the packaged milling tool that weares and teares, prolong its application life, also avoid rountrip frequently.Simultaneously, be connected with rotating hook on the cylindrical shell, when fishing tool was gone into the well, hook was withdrawn in the cylindrical shell, and during salvaging, hook stretches out, and can salvage rope class junks such as cable, makes salvaging more thorough.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1-top connection among the figure, the 2-cylindrical shell, 3-overlaps milling head, 4-alloy head, 5-chip area, 6-hook, 7-rotating shaft, 8-spring.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of salvaging packaged milling tool, comprise top connection 1, top connection 1 bottom is by the cylindrical shell 2 that has been threaded, cylindrical shell 2 bottom adapter sleeve milling heads 3, have several chip areas 5 on described cylindrical shell 2 sidewalls, because cylindrical shell 2 inner hollow, like this, milling the chip that produces in the process at cover can together upwards backflow by chip area 5 and well liquid, avoids talus accumulation and the cover milling head wearing and tearing that cause, has prolonged the application life of cover milling head 3, also can avoid rountrip frequently, accelerate the speed that fishing sleeve mills.Fixedly there is alloy head 4 cover milling head 3 lower ends, and alloy head 4 hardness height, wear-resistant can be accelerated to overlap the speed of milling, and delay to overlap milling head 3 wearing and tearing.Cylindrical shell 2 middle parts are connected with the hook 6 of most advanced and sophisticated extended cylindrical shell 2 outsides by rotating shaft 7, and link up with between 6 the other end and the cylindrical shell 2 and be connected with spring 8, and hook 6 is along at least 2 of the differing heights settings of cylindrical shell 2, and along the circumferential direction uniform.When fishing tool was gone into the well, hook 6 was withdrawn under the effect of tube wall and obstruction, and when nature, hook 6 is protruding under the effect of self gravitation and spring 8, on when carrying fishing tool, rope class fishing junks such as cable can be come out.
This salvaging packaged milling tool both can be salvaged downhole tool, can salvage rope such as cable class junk again, made to salvage widerly, salvaged more thoroughly, avoided frequently removing, and had prolonged the life-span of fishing tool.
Claims (1)
1. salvage packaged milling tool for one kind, comprise top connection (1), top connection (1) bottom is connected with cylindrical shell (2), cylindrical shell (2) bottom adapter sleeve milling head (3), it is characterized in that: have several chip areas (5) on described cylindrical shell (2) sidewall, fixedly there is alloy head (4) cover milling head (3) lower end, described cylindrical shell (2) middle part is connected with the outside hook (6) of most advanced and sophisticated extended cylindrical shell (2) by rotating shaft (7), and is connected with spring (8) between the other end of hook (6) and the cylindrical shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187822 CN203145881U (en) | 2013-04-15 | 2013-04-15 | Refloatation covering milling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187822 CN203145881U (en) | 2013-04-15 | 2013-04-15 | Refloatation covering milling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145881U true CN203145881U (en) | 2013-08-21 |
Family
ID=48973417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187822 Expired - Fee Related CN203145881U (en) | 2013-04-15 | 2013-04-15 | Refloatation covering milling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967439A (en) * | 2014-04-28 | 2014-08-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Continuous milling and salvage integrated tool and milling and salvage method thereof |
-
2013
- 2013-04-15 CN CN 201320187822 patent/CN203145881U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967439A (en) * | 2014-04-28 | 2014-08-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Continuous milling and salvage integrated tool and milling and salvage method thereof |
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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: 20130821 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |