CN203879437U - Casing milling fishing gear - Google Patents
Casing milling fishing gear Download PDFInfo
- Publication number
- CN203879437U CN203879437U CN201420207879.2U CN201420207879U CN203879437U CN 203879437 U CN203879437 U CN 203879437U CN 201420207879 U CN201420207879 U CN 201420207879U CN 203879437 U CN203879437 U CN 203879437U
- Authority
- CN
- China
- Prior art keywords
- inner core
- urceolus
- barrel
- milling
- fishing
- 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
Abstract
The utility model provides a casing milling fishing gear which comprises an outer barrel, an inner barrel rotatably arranged in the outer barrel in a sleeved mode and an upper joint mounted at the upper end of the outer barrel. The lower end of the outer barrel protrudes inwards to form an annular boss, and the inner barrel is mounted between the upper joint and the annular boss. A plurality of openings are formed in the barrel wall of the inner barrel, each opening is provided with a one-way baffle which forms a preset angle with a center shaft of the inner barrel, and the lower end of the outer barrel is provided with an alloy layer which is used for conducting casing milling on a fishing object in a paved welding mode. Through the casing milling fishing gear, the fishing problem of small-size falling objects can be effectively solved, and the fishing efficiency is improved.
Description
Technical field
The utility model relates to drilling technique field, in particular to a kind of cover milling fishing device.
Background technology
During oil-water well heavy repair task, small falling object can have a strong impact on lower step construction, especially gear wheel class small falling object, in well, position is uncertain strong, hardness is difficult for greatly milling and milling construction can damage sleeve pipe, and conventional anti-circulation is dragged for the instruments such as basket, strong magnetic die and is difficult to salvage, have a strong impact on operating efficiency.
Therefore, need a kind of new cover milling fishing device, can effectively solve the salvaging problem of small size junk, improve and salvage efficiency.
Utility model content
Technical problem to be solved in the utility model is, a kind of cover milling fishing device is provided, and can effectively solve the salvaging problem of small size junk, improves and salvages efficiency.
In view of this, the utility model provides the cover milling fishing device of a kind of embodiment, comprise urceolus, be set in inner core in described urceolus rotationally, be arranged on the top connection of the upper end of described urceolus, the lower end of described urceolus extends internally and forms an annular boss, described inner tube installation is between described top connection and described annular boss, many places opening be provided with described inner core central axis and become the unidirectional baffle plate of predetermined angle at each opening part on the barrel of described inner core, the lower end paving of described urceolus is welded with for overlapping the alloy-layer of milling to salvaging thing.
In order to facilitate better inner core to rotate, can on the outer wall of described inner core, drive cannelure, and in described cannelure, be provided with one for reducing the slip ring of described inner core rotation friction, slip ring will separate slight distance between the outer wall of inner core and the inwall of urceolus, thereby can reduce the rotation friction of inner core.
In this technical scheme, instrument lower surface paving solder alloy layer, overlaps milling as milling shoe, and inner core lower end is provided with unidirectional baffle plate and guarantees can not come off after gear wheel class small falling object enters tolerant cover, by cover milling, gear wheel class small falling object is put into the tolerant cover of instrument, thereby realize, salvage; In addition, between inner core and urceolus, can relatively rotate, thereby avoid urceolus to rotate and cause the junk that enters inner core to damage unidirectional baffle plate with drilling rod.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the cover milling fishing device of utility model embodiment.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
As shown in Figure 1, according to the cover milling fishing device of embodiment of the present utility model, comprise urceolus 6, be set in inner core 2 in described urceolus 6 rotationally, be arranged on the top connection 1 of the upper end of described urceolus 6, the lower end of described urceolus 6 extends internally and forms an annular boss 7, described inner core 2 is arranged between described top connection 1 and described annular boss 7, many places opening be provided with described inner core 2 central axiss and become the unidirectional baffle plate 4 of predetermined angle at each opening part on the barrel of described inner core 2, the lower end paving of described urceolus 6 is welded with for overlapping the alloy-layer 5 of milling to salvaging thing.
In order to facilitate better inner core 2 to rotate, can on the outer wall of described inner core 2, drive cannelure, and in described cannelure, be provided with one for reducing the slip ring 3 of described inner core 2 rotation frictions, slip ring 3 will separate slight distance between the outer wall of inner core 2 and the inwall of urceolus 6, thereby can reduce the rotation friction of inner core 2.
In this technical scheme, instrument lower surface paving solder alloy layer 5, overlaps milling as milling shoe, and inner core 2 lower ends are provided with unidirectional baffle plate 4 and guarantee can not come off after gear wheel class small falling object enters tolerant cover, by cover milling, gear wheel class small falling object is put into the tolerant cover of instrument, thereby realize, salvage; In addition, between inner core 2 and urceolus 6, can relatively rotate, thereby avoid urceolus 6 to rotate and cause the junk that enters inner core 2 to damage unidirectional baffle plate 4 with drilling rod.
Specifically operating type is, implements after the top of fish degree of depth, when this instrument is to the above 1-2m of top of fish down, slowly transfers, and starts rotating disk, and to transfer on the rotation limit, speed limit of 20-40r/min, after being hampered, pressurization 0-5kN, slowly overlaps milling; Cover milling to junk enters in tolerant cover (specifically to be determined according to junk size and tool length), and fishing has pulled out of hole.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but within this embodiment is included in scope of the present utility model.
Claims (2)
1. one kind is overlapped milling fishing device, it is characterized in that, comprise urceolus (6), be set in rotationally the inner core (2) in described urceolus (6), be arranged on the top connection (1) of described urceolus (6) upper end, the lower end of described urceolus (6) extends internally and forms an annular boss (7), described inner core (2) is arranged between described top connection (1) and described annular boss (7), many places opening be provided with the unidirectional baffle plate (4) that becomes predetermined angle with described inner core (2) central axis at each opening part on the barrel of described inner core (2), the lower end paving of described urceolus (6) is welded with for overlapping the alloy-layer (5) of milling to salvaging thing.
2. cover milling fishing device according to claim 1, is characterized in that, on the outer wall of described inner core (2), has cannelure, and in described cannelure, is provided with one for reducing the slip ring (3) of described inner core (2) rotation friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207879.2U CN203879437U (en) | 2014-04-25 | 2014-04-25 | Casing milling fishing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207879.2U CN203879437U (en) | 2014-04-25 | 2014-04-25 | Casing milling fishing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879437U true CN203879437U (en) | 2014-10-15 |
Family
ID=51679949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207879.2U Expired - Fee Related CN203879437U (en) | 2014-04-25 | 2014-04-25 | Casing milling fishing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879437U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847289A (en) * | 2015-06-08 | 2015-08-19 | 山东鲁潍机械厂 | Fishing device for water delivery steel tube in water source well |
| CN104929558A (en) * | 2015-06-23 | 2015-09-23 | 中国石油集团渤海钻探工程有限公司 | Fixed-point sleeve taking and replacement process method |
| WO2022132624A1 (en) * | 2020-12-18 | 2022-06-23 | Schlumberger Technology Corporation | Annular cutter catching devices |
-
2014
- 2014-04-25 CN CN201420207879.2U patent/CN203879437U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847289A (en) * | 2015-06-08 | 2015-08-19 | 山东鲁潍机械厂 | Fishing device for water delivery steel tube in water source well |
| CN104847289B (en) * | 2015-06-08 | 2018-09-28 | 山东省煤田地质局第四勘探队 | Water conveyance steel tube fishing device in a kind of water supply well |
| CN104929558A (en) * | 2015-06-23 | 2015-09-23 | 中国石油集团渤海钻探工程有限公司 | Fixed-point sleeve taking and replacement process method |
| WO2022132624A1 (en) * | 2020-12-18 | 2022-06-23 | Schlumberger Technology Corporation | Annular cutter catching devices |
| US12071825B2 (en) | 2020-12-18 | 2024-08-27 | Schlumberger Technology Corporation | Annular cutter catching devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201222 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20210425 |