CN203856438U - Casing grinding and scrubbing tool - Google Patents
Casing grinding and scrubbing tool Download PDFInfo
- Publication number
- CN203856438U CN203856438U CN201420207878.8U CN201420207878U CN203856438U CN 203856438 U CN203856438 U CN 203856438U CN 201420207878 U CN201420207878 U CN 201420207878U CN 203856438 U CN203856438 U CN 203856438U
- Authority
- CN
- China
- Prior art keywords
- casing
- central tube
- scrubbing tool
- grinding
- sleeve pipe
- 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
Landscapes
- Cleaning In General (AREA)
Abstract
The utility model provides a casing grinding and scrubbing tool, comprising a center barrel, an upper connector installed at the upper end of the center barrel, and a grinding head installed at the lower end of the center barrel, wherein multiple steel wire brushes are installed in the center barrel; the lower end of the grinding head is provided with a conical hole with a downward cone base; an alloy layer for grinding a fracture of a casing is paved on the conical surface in a welding manner. By adopting the casing grinding and scrubbing tool, the condition that the patching operation is influenced by burrs on the fracture of the casing and rusts or cement on the outer wall can be avoided, and the patching success rate and the operation quality are improved.
Description
Technical field
The utility model relates to drilling technique field, in particular to a kind of sleeve pipe reconditioning scrubbing tool.
Background technology
To take cover technology be to the serious broken well of sleeve pipe, be out of shape well, a workover process technology that the outer blind hole that breaks carries out, is mainly to take out damaged sleeve pipe by cutting, and setting of casing rejoining device completes the tieback of new casing and well inner sleeve, reaches the object of reparation.Conventional sleeve pipe rejoining device has lead sealing cementing type rejoining device and packer molded cannula rejoining device at present, mends while connecing and requires sleeve pipe fracture smooth, and outer wall is relatively smooth, intact to ensure that benefit connects rear sealing performance.But when practice of construction, the sleeve pipe fracture after cutting can be jagged, and sleeve outer wall is also covered with iron rust or cement slurry, mend while connecing and very easily damage rejoining device sealing ring, cause benefit to connect failure.
Therefore, need a kind of sleeve pipe reconditioning scrubbing tool, can avoid the burr of sleeve pipe incision position and the upper iron rust of outer wall or cement to prick impact benefit and connect operation, improve and mend the success rate and the operation quality that connect.
Utility model content
Technical problem to be solved in the utility model is, a kind of sleeve pipe reconditioning scrubbing tool is provided, and can avoid the burr of sleeve pipe incision position and the upper iron rust of outer wall or cement to prick impact benefit and connect operation, improves and mends the success rate and the operation quality that connect.
In view of this, the utility model provides a kind of sleeve pipe reconditioning scrubbing tool, comprise central tube, be arranged on the top connection of the upper end of described central tube, in the inside of described central tube, multiple wire brushes are installed, described central tube lower end is cone end bell down, is welded with the alloy-layer for sleeve pipe incision position being carried out to reconditioning on this bell upper berth.
In addition, can on described central tube lower end, be provided with the external screw thread for connecting guide shoe, connect guide shoe convenient.
In this technical scheme, the alloy-layer on reconditioning head can repairing casing fracture, ensures that fracture is smooth, avoids damaging sealing ring in the time that rejoining device enters; Plant weldering wire brush in central tube surrounding, when instrument rotation finishing fracture, wire brush can be cleared up the foreign material such as the iron rust of sleeve outer wall, ensures that sleeve outer wall is smooth.
Brief description of the drawings
Fig. 1 is according to the structural representation of the sleeve pipe reconditioning scrubbing tool of utility model embodiment.
Detailed description of the invention
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 feature in the application's embodiment and embodiment can combine mutually.
As shown in Figure 1, according to the sleeve pipe reconditioning scrubbing tool of embodiment of the present utility model, comprise central tube 2 and be arranged on the top connection 1 of the upper end of described central tube 2, multiple wire brushes 3 are installed in the inside of described central tube 2, described central tube 2 lower ends are cone end bell down, are welded with the alloy-layer 5 for sleeve pipe incision position being carried out to reconditioning on this star-pursuing mouth upper berth.
In addition, can be provided with the external screw thread for connecting guide shoe 5 in described central tube 2 lower ends, connect guide shoe convenient.
In this technical scheme, the alloy-layer 5 in reconditioning 6 can repairing casing fracture, ensures that fracture is smooth, avoids damaging sealing ring in the time that rejoining device enters; Plant weldering wire brush 3 in central tube 2 surroundings, when instrument rotation finishing fracture, wire brush 4 can be cleared up the foreign material such as the iron rust of sleeve outer wall, ensures that sleeve outer wall is smooth.
Concrete operating type is that cutting is taken out after damaged sleeve pipe, while being lowered to sleeve pipe reconditioning scrubbing tool to the above 1-2m of fracture, slowly transfers, turn on pump circulation workover fluid, starts rotating disk simultaneously, transfers with the rotation limit, speed limit of 20-40r/min, after being hampered, pressurization 0-5kN, introduces cylindrical shell by sleeve pipe; Continue slowly to transfer, fracture is during to reconditioning, pressurization 5-10kN, rotating speed 30-40r/min, finishing fracture, and upper and lower handling cleaning sleeve outer wall.
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. a sleeve pipe reconditioning scrubbing tool, it is characterized in that, comprise central tube (2) and be arranged on the top connection (1) of described central tube (2) upper end, in the inside of described central tube (2), multiple wire brushes (3) are installed, described central tube (2) lower end is cone end bell down, is welded with alloy-layer (5) on the conical surface upper berth of this bell.
2. sleeve pipe reconditioning scrubbing tool according to claim 1, is characterized in that, described central tube (2) lower end is provided with the external screw thread for connecting guide shoe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207878.8U CN203856438U (en) | 2014-04-25 | 2014-04-25 | Casing grinding and scrubbing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207878.8U CN203856438U (en) | 2014-04-25 | 2014-04-25 | Casing grinding and scrubbing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856438U true CN203856438U (en) | 2014-10-01 |
Family
ID=51606300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420207878.8U Expired - Fee Related CN203856438U (en) | 2014-04-25 | 2014-04-25 | Casing grinding and scrubbing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201457A (en) * | 2015-10-15 | 2015-12-30 | 中国海洋石油总公司 | Cleaning tool for outer wall of oil well casing |
| CN112627757A (en) * | 2020-11-27 | 2021-04-09 | 中国海洋石油集团有限公司 | Casing pipe outer wall grinding device |
-
2014
- 2014-04-25 CN CN201420207878.8U patent/CN203856438U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201457A (en) * | 2015-10-15 | 2015-12-30 | 中国海洋石油总公司 | Cleaning tool for outer wall of oil well casing |
| CN112627757A (en) * | 2020-11-27 | 2021-04-09 | 中国海洋石油集团有限公司 | Casing pipe outer wall grinding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102889067B (en) | Can the cementing unit of multidirectional vibration | |
| CN203856438U (en) | Casing grinding and scrubbing tool | |
| AU2011224885B2 (en) | A rock drill bit, a drilling assembly and a method for percussive rock drilling | |
| CN204492719U (en) | A kind of ball-throwing type hydraulic pressure back-off is dual-purpose gives up | |
| CN104533332B (en) | Downhole string cutting and fishing integrated tool and construction method thereof | |
| CN204511379U (en) | A kind of extension type taper-shaped blade pipeline scraper | |
| CN203603805U (en) | Coiled tubing sand washing and well flushing tool | |
| CN105386726A (en) | Novel stratum rock core sampling drill preventing rock core from fracturing | |
| CN104632131A (en) | Oil scraping device for sucker rod | |
| CN203547622U (en) | Special casing pipe brush for repairing and connecting casing pipe | |
| CN205477525U (en) | Horizontal well floats case tubular column | |
| CN104295258B (en) | The integral operation gauguste cutter of new dredging, scraping wall and working string | |
| CN207934849U (en) | Milling shoes | |
| CN205047167U (en) | Big latus rectum spiral drill rod | |
| CN103527139B (en) | Drillable metal casing float collar float shoe device | |
| CN203925376U (en) | The integrated extension hanger tie-back sleeve of a kind of cone post shaping tool | |
| CN105804690A (en) | In-situ leaching process hole drilling reverse cement slurry injection device | |
| CN109386246B (en) | Drilling tool and method for plug sweeping, grinding and milling of tieback cylinder | |
| CN111305783A (en) | Fishing device and fishing method for underground junk | |
| CN205764008U (en) | A kind of oil field well special jewel ball instrument | |
| CN106377051B (en) | A kind of novel brush scrapes pipe device | |
| CN212079250U (en) | Spacing restoration milling cone | |
| CN104481413B (en) | A kind of revolving cutting bit of rig | |
| CN205503053U (en) | A device for unloading casing nipple | |
| CN101139915B (en) | Casing milling salvaging adaptor for oil well |
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: 20141001 Termination date: 20190425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |