CN204457550U - Milling bar type magnetic drags for device - Google Patents
Milling bar type magnetic drags for device Download PDFInfo
- Publication number
- CN204457550U CN204457550U CN201420827259.9U CN201420827259U CN204457550U CN 204457550 U CN204457550 U CN 204457550U CN 201420827259 U CN201420827259 U CN 201420827259U CN 204457550 U CN204457550 U CN 204457550U
- Authority
- CN
- China
- Prior art keywords
- milling
- magnetic
- drags
- flow
- guiding channel
- 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
- 238000003801 milling Methods 0.000 title claims abstract description 98
- 239000007769 metal material Substances 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 13
- 230000005484 gravity Effects 0.000 abstract description 4
- 239000003129 oil well Substances 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model provides a kind of milling bar type magnetic to drag for device, and it comprises: milling rod body and magnetic drag for device.The inside of milling rod body has along its first axially through flow-guiding channel, and the rear end of milling rod body is around the lug boss be circumferentially arranged for milling of the first flow-guiding channel; The front end that magnetic drags for device and milling rod body is fixedly connected, and the inside that magnetic drags for device has along its second axially through flow-guiding channel, and the second flow-guiding channel is connected with the first flow-guiding channel, and the outside wall surface that magnetic drags for device has magnetic.The utility model has the advantages that: the inside of dragging for device at milling bar type magnetic has along its axially through flow-guiding channel, utilize flow-guiding channel can pour in down-hole annular by highly pressurised liquid, under the booster action of highly pressurised liquid, the abrasive dust produced after milling rod milling milling junk can overcome Action of Gravity Field and upwards float to magnetic and drag near device, abrasive dust is adsorbed on completely outside that magnetic drags for device, thus abrasive dust is with outside producing well completely.
Description
Technical field
The utility model relate to a kind of oil field well reconditioning work kit, and particularly a kind of milling bar type magnetic drags for device.
Background technology
In oil extraction process, carry out exploitation to the oil well of slim-hole to get more and more, the flow string entered under in the oil well of slim-hole, once the well that falls is buried, due to the well head size restrictions of slim-hole oil well, cannot enter down instrument and salvage the junk burying dead tubing string in down-hole annular.For preventing the complicated of construction, ensure completing smoothly of reconditioning work, salvaging after adopting milling tool to carry out first milling to the junk in down-hole annular is solve down-hole string by the effective ways buried.
Combination milling tool in the sleeve pipe of a kind of such as Chinese patent ZL201220088410.2 is provided in the market.It comprises strong magnetic tube post, with brill fishing cup and efficient milling shoes.The upper end of strong magnetic tube post has API sleeve pipe to connect internal thread, and upper end can be connected with tubing string.The lower end of strong magnetic tube post has been threaded one with brill fishing cup, and at the oil pipe that has been threaded with the lower end of boring fishing cup, the lower end of oil pipe has been threaded an efficient milling shoes.The described external diameter with brill fishing cup is 100mm; The external diameter of described efficient milling shoes is 102mm.
Although the combination milling tool in this sleeve pipe milling can salvage the junk in down-hole annular to a certain extent, but the combination milling tool applied in this sleeve pipe carries out milling when salvaging junk, the abrasive dust produced by the junk of milling can not enter being adsorbed up with boring in fishing cup or by strong magnetic tube post of junk mill top completely due to Action of Gravity Field.That is, use during the combination milling tool in this sleeve pipe and can not remove in down-hole annular the junk burying dead tubing string completely.
Utility model content
In order to overcome above-mentioned defect of the prior art, technical problem to be solved in the utility model is to provide a kind of milling bar type magnetic and drags for device, this milling bar type magnetic drags for device can remove in down-hole annular the junk burying dead tubing string completely, thus is pulled out outside oil well by the junk burying dead tubing string.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of milling bar type magnetic and drags for device, it is characterized in that, it comprises: milling rod body, described milling rod body has rear and front end along himself axis direction, the inside of described milling rod body has along its first axially through flow-guiding channel, and the rear end of described milling rod body is around the lug boss be circumferentially arranged for milling of described first flow-guiding channel; Magnetic drags for device, the front end that described magnetic drags for device and described milling rod body is fixedly connected, the inside that described magnetic drags for device has along its second axially through flow-guiding channel, and described second flow-guiding channel is connected with described first flow-guiding channel, and the outside wall surface that described magnetic drags for device has magnetic.
Preferably, at least one that the sidewall of described milling rod body is placed with for milling is protruding.
Preferably, described lug boss is made up of hard metal material.
Preferred embodiment, described lug boss is made up of alloy steel.
In other embodiment, described lug boss is spherical or taper.
Further, the front end that described magnetic drags for device is fixedly connected with box cupling, and described box cupling has the opening that the second flow-guiding channel of dragging for device with described magnetic is connected.
Further, described magnetic drags for device and is made up of permanent magnet.
In addition, described milling rod body and described magnetic drag for the manufacture of device integral type.
The utility model has the advantages that: compared with prior art, milling bar type magnetic of the present utility model drags for device owing to having along its axially through flow-guiding channel therein, utilize flow-guiding channel can pour in down-hole annular by highly pressurised liquid, highly pressurised liquid auxiliary under, the abrasive dust produced after milling rod milling milling junk can overcome Action of Gravity Field and upwards float to magnetic and drag near device, abrasive dust is adsorbed on completely outside that magnetic drags for device, thus abrasive dust is with outside producing well completely.The utility model has simple, easy to maintenance, easy to operate, the safe and reliable feature of structure.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit the utility model scope of disclosure by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping understanding of the present utility model, are not the shape and the proportional sizes that specifically limit each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shape and proportional sizes to implement the utility model as the case may be.
Fig. 1 shows the structural representation that milling bar type magnetic of the present utility model drags for device.
The Reference numeral of above accompanying drawing: 1, milling rod body; 2, the first flow-guiding channel; 3, lug boss; 4, magnetic drags for device; 5, the second flow-guiding channel; 6, box cupling; 7, opening.
Detailed description of the invention
By reference to the accompanying drawings with the description of the utility model detailed description of the invention, can clearly understand details of the present utility model.But detailed description of the invention of the present utility model described here, only for explaining the purpose of this utility model, and can not to be understood as by any way be to restriction of the present utility model.Under instruction of the present utility model, technician can conceive based on distortion possible arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
As shown in Figure 1, the utility model provides a kind of milling bar type magnetic and drags for device, and it comprises: milling rod body 1 and magnetic drag for device 4.Milling rod body 1 has rear and front end along himself axis direction, and (in accompanying drawing 1, the top of milling rod body 1 is front end, the below of milling rod body 1 is rear end), the inside of milling rod body 1 has along its first axially through flow-guiding channel 2, and the rear end of milling rod body 1 is around the lug boss 3 be circumferentially arranged for milling of the first flow-guiding channel 2.Magnetic drags for device 4 and is fixedly connected with the front end of milling rod body 1, the inside that magnetic drags for device 4 have along its axially the second through flow-guiding channel 5, second flow-guiding channel 5 be connected with the first flow-guiding channel 2, the outside wall surface that magnetic drags for device 4 has magnetic.
Particularly, milling rod body 1 is substantially cylindrical, and the inside of milling rod body 1 runs through one along its axially extended first flow-guiding channel 2, and that is, the first flow-guiding channel 2 is communicated with former and later two end faces of milling rod body 1.This first flow-guiding channel 2 rounded duct substantially, it flows out from the inside of milling rod body 1 for making liquid.The rear end bottom wall outer of milling rod body 1 is provided with at least one lug boss 3 for milling around the hoop of the first flow-guiding channel 2, this lug boss 3 is in spherical or taper, and projection is arranged towards the rear of milling rod body 1, this lug boss 3 is used for milling and falls into junk in down-hole annular.
It is cylindrical substantially that magnetic drags for device 4, and the rear end that magnetic drags for device 4 can for being threaded with the front end of milling rod body 1.Particularly, the internal face that magnetic drags for device 4 can be provided with internal thread, the outside wall surface of milling rod body 1 is provided with the external screw thread that the internal thread that drags for device 4 internal face with magnetic matches.Natch, magnetic drags on device 4 also can be provided with external screw thread, and milling rod body 1 is provided with and drags for the internal thread that device 4 matches with magnetic is also feasible.The inside that magnetic drags for device 4 runs through one along its axially extended second flow-guiding channel 5, and that is, the second flow-guiding channel 5 is communicated with former and later two end faces that magnetic drags for device 4.Second flow-guiding channel 5 rounded duct substantially, it drags for the inside outflow of device 4 for making liquid from magnetic.Second flow-guiding channel 5 is connected with the first flow-guiding channel 2, and that is, first liquid flow through the second flow-guiding channel 5 that magnetic drags for device 4 inside, then flows through the rear outflow of the first flow-guiding channel 2 of milling rod body 1.
The outside wall surface that magnetic drags for device 4 has magnetic, and particularly, magnetic drags for the outside wall surface that device 4 or magnetic drags for device 4 and can be made up of permanent magnet or the magnetic metal material of other tools.
The use engineering that milling bar type magnetic of the present utility model drags for device is as follows: first utilize pump to drag in the second flow-guiding channel 5 of device to this milling bar type magnetic and inject liquid, such as workover fluid etc.The second flow-guiding channel 5 dragging for device 4 inside due to magnetic is connected with the first flow-guiding channel 2 of milling rod body 1 inside, therefore, the second flow-guiding channel 5 that liquid can drag for device 4 inside by magnetic flows to the first flow-guiding channel 2 of milling rod body 1 inside, flows out from the rear end of the first flow-guiding channel 2.Then transfer milling bar type magnetic when dragging for device close to junk in down-hole annular, utilize the workover rig rotating disk on ground to make milling bar type magnetic drag for device High Rotation Speed, lug boss 3 pairs of junks of milling rod body 1 rear end diapire carry out milling.Strengthen the pressure of liquid in the first flow-guiding channel 2 and the second flow-guiding channel 5, the abrasive dust after making highly pressurised liquid impact milling.At this moment make abrasive dust up under the abrasive dust of junk will be subject to the booster action of hydraulic shock power, up abrasive dust is adsorbed on the outside that magnetic drags for device 4, thus pulls junk out oil well.
The utility model has the advantages that: milling bar type magnetic drags for device owing to having one therein along its first axially through flow-guiding channel 2 and the second flow-guiding channel 5, utilize this first flow-guiding channel 2 and the second flow-guiding channel 5 can pour in down-hole annular by highly pressurised liquid, highly pressurised liquid auxiliary under, the abrasive dust produced after milling rod body 1 milling junk can overcome Action of Gravity Field and upwards float to magnetic and drag near device 4, abrasive dust is adsorbed on completely outside that magnetic drags for device 4, thus abrasive dust is with outside producing well completely.
Preferably, the sidewall of milling rod body 1 is placed with at least one protruding (not shown) for milling.The junk that projection on milling rod body 1 sidewall helps out in milling pit shaft.
Preferred embodiment, lug boss 3 is made up of hard metal material.Particularly, lug boss 3 can be made up of alloy steel.
In other embodiment, the front end that magnetic drags for device 4 is fixedly connected with box cupling 6, and box cupling 6 has the opening 7 that the second flow-guiding channel 5 of dragging for device 4 with magnetic is connected.Particularly, the nose threads jointed rod of box cupling 6, the rear end of box cupling 6 magnetic that is threaded drags for device 4.
Further, milling rod body 1 drag for device 4 with magnetic can integral type manufacture.
Each embodiment in this manual all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (8)
1. milling bar type magnetic drags for a device, it is characterized in that, it comprises:
Milling rod body, described milling rod body has rear and front end along himself axis direction, the inside of described milling rod body has along its first axially through flow-guiding channel, and the rear end of described milling rod body is around the lug boss be circumferentially arranged for milling of described first flow-guiding channel;
Magnetic drags for device, the front end that described magnetic drags for device and described milling rod body is fixedly connected, the inside that described magnetic drags for device has along its second axially through flow-guiding channel, and described second flow-guiding channel is connected with described first flow-guiding channel, and the outside wall surface that described magnetic drags for device has magnetic.
2. milling bar type magnetic according to claim 1 drags for device, it is characterized in that: at least one that the sidewall of described milling rod body is placed with for milling is protruding.
3. milling bar type magnetic according to claim 1 and 2 drags for device, it is characterized in that: described lug boss is made up of hard metal material.
4. milling bar type magnetic according to claim 1 and 2 drags for device, it is characterized in that: described lug boss is made up of alloy steel.
5. milling bar type magnetic according to claim 1 drags for device, it is characterized in that: described lug boss is spherical or taper.
6. milling bar type magnetic according to claim 1 drags for device, it is characterized in that: the front end that described magnetic drags for device is fixedly connected with box cupling, and described box cupling has the opening that the second flow-guiding channel of dragging for device with described magnetic is connected.
7. milling bar type magnetic according to claim 1 drags for device, it is characterized in that: described magnetic drags for device and is made up of permanent magnet.
8. milling bar type magnetic according to claim 1 drags for device, it is characterized in that: described milling rod body and described magnetic drag for the manufacture of device integral type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827259.9U CN204457550U (en) | 2014-12-23 | 2014-12-23 | Milling bar type magnetic drags for device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827259.9U CN204457550U (en) | 2014-12-23 | 2014-12-23 | Milling bar type magnetic drags for device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457550U true CN204457550U (en) | 2015-07-08 |
Family
ID=53664452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827259.9U Expired - Fee Related CN204457550U (en) | 2014-12-23 | 2014-12-23 | Milling bar type magnetic drags for device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457550U (en) |
-
2014
- 2014-12-23 CN CN201420827259.9U patent/CN204457550U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201818263U (en) | Horizontal well coring tool | |
| CN205503076U (en) | Down -hole junk slip socket | |
| CN203394397U (en) | Underground multifunctional sand washing processor | |
| CN103967439A (en) | Continuous milling and salvage integrated tool and milling and salvage method thereof | |
| CN209817993U (en) | Drilling coring and core plugging alarm device | |
| CN204492719U (en) | A kind of ball-throwing type hydraulic pressure back-off is dual-purpose gives up | |
| CN203822227U (en) | Novel device for clearing and salvaging fallen objects and deposited sand at bottom of well | |
| CN204457550U (en) | Milling bar type magnetic drags for device | |
| CN203603805U (en) | Coiled tubing sand washing and well flushing tool | |
| CN205206779U (en) | Fracture drilling rod fishing device | |
| CN203879437U (en) | Casing milling fishing gear | |
| CN107558933A (en) | Safety joint under a kind of fluffing of moulding sand formula oil well | |
| CN202970581U (en) | Salvaging device of cables under oil well | |
| CN106801588A (en) | The semiclosed mud pressure keeping circulation technology of artesian water earth-boring construction | |
| CN204457546U (en) | Eccentric fishing cup mill shoes | |
| CN204371261U (en) | A kind of locking mechanism of major diameter restriction choke | |
| CN104790872B (en) | Auto-excitation type guider can be bored | |
| CN104514528B (en) | Reducer packing element lytic agent delivery device | |
| CN202500513U (en) | Core-taking drill tool for super-fragile and soft stratum | |
| CN207420516U (en) | A kind of preventing oil pipe split junk mill | |
| CN204312005U (en) | A kind of cement retainer fisher | |
| CN205714062U (en) | Fishing tool in salt well closure transformation pit shaft | |
| CN206144502U (en) | Drag for sand instrument in pit | |
| CN206360672U (en) | Mechanical set drags for integrated tool | |
| CN203808898U (en) | Continuous casing milling and fishing integrated tool |
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: 20150708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |