CN206942702U - A kind of horizontal well casing pipe inward eddy sand flushing tool - Google Patents
A kind of horizontal well casing pipe inward eddy sand flushing tool Download PDFInfo
- Publication number
- CN206942702U CN206942702U CN201720521089.5U CN201720521089U CN206942702U CN 206942702 U CN206942702 U CN 206942702U CN 201720521089 U CN201720521089 U CN 201720521089U CN 206942702 U CN206942702 U CN 206942702U
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- China
- Prior art keywords
- sand
- bearing block
- horizontal well
- joint
- bearing
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of horizontal well casing pipe inward eddy sand flushing tool, can strengthen the sand washing ability of sand flushing tool, improve sand washing effect.This instrument includes joint, bearing block and stirs sand body, and bearing is arranged in bearing block, blocked by bearing cap, and one end of joint is equipped with pressure cap provided with external screw thread, and bearing block is arranged on the other end of joint, fixed by steady pin and joint；The outer wall for stirring sand body is provided with helicla flute, both ends installation within the bearing and held out against by the pressure cap on joint and the bearing block at both ends.The utility model can improve the standard well sand washing effect, shorten the sand washing operation cycle, reduce operation and do over again, extend oil well effective production cycle, have good social benefit and economic benefit.
Description
Technical field
The sand flushing tool of petroleum industry horizontal well is the utility model is related to, specifically a kind of horizontal well casing pipe inward eddy
Sand flushing tool, the sand washing ability of sand flushing tool can be strengthened, improve sand washing effect.
Background technology
The development of horizontal well pair short lap oil reservoir, bottom and edge water and super-heavy oil deposit is notable, largely
Improve the recovery ratio in oil field.With the development of horizontal well, when repairing horizontal well also gradually shows a series of inadaptability.Closely
Nian Lai, by the research and discovery to horizontal well operation technique, horizontal well routine well workover technology improve and perfect, shape
The well workover technology supporting into horizontal well, but still suffer from a little deficiency.
Current horizontal well development is applied to Thief zone loose sand oil accumulation mostly, and oil well easily shakes out, the sand washing of horizontal well
Operation just becomes an essential flow chart.For completion methods of horizontal wells, mainly horizontal segment sleeve pipe sand washing is used
Sand washing process in technique and horizontal segment sand screen, its sand washing effect are all less desirable.
Sand washing process uses conventional sand flushing tool in horizontal well casing pipe, and in net horizontal section, due to Action of Gravity Field, reservoir sand sinks
Can not drive part sand setting in horizontal segment sleeve pipe bottom side, during sand washing, cause sand washing not thorough, eliminate bias current task difficulty also compared with
Greatly.Using coiled tubing not termination of pumping sand washing, sand washing effect can be improved, but operating cost is higher, is managed with current cost efficiency
Thought is not inconsistent.Using gauguste cutter welding ring around steel wire, current is produced faint rotation, can be applied to horizontal well sand washing, but effect is not
Substantially.Sand washing do not easily cause thoroughly do over again, secondary operation, or even influence oil well normally produce.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems, provide a kind of horizontal well casing pipe inward eddy sand flushing tool, is improved
The success rate and effect of horizontal well sand washing, reduce operation and do over again, extend oil well effective production cycle, reduce production cost.
Technical solution of the present utility model is：A kind of horizontal well casing pipe inward eddy sand flushing tool includes joint, bearing
Seat is arranged in bearing block, blocked by bearing cap with sand body, bearing is stirred, and one end of joint is equipped with pressure cap, bearing provided with external screw thread
Seat is arranged on the other end of joint, fixed by steady pin and joint；The outer wall for stirring sand body is provided with helicla flute, both ends are arranged on axle
Hold and held out against by the pressure cap on joint and the bearing block at both ends.
Compared with prior art, remarkable result of the present utility model is：When the utility model is used for horizontal well sand washing, it is pumped into
For liquid in pit shaft while sand body rotation is stirred in drive, the helicla flute stirred on sand body can make current produce turning for certain orientation
To so as to produce powerful spiral scouring force, the sand setting of level of agitation section, well sand washing effect of improving the standard, shortening sand washing work
In the industry cycle, reduce operation and do over again, extend oil well effective production cycle.By 5 mouthfuls of scene well it is demonstrated experimentally that the utility model
The sand washing effect of net horizontal section can be effectively improved, significantly shorten the sand washing operation cycle, reduces operation and does over again, sand washing success
Rate has reached 100%, effectively extends oil well effective production cycle.With good social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Relevant detailed description of the present utility model and technology contents, Fig. 1 is coordinated to be described as follows, but accompanying drawing only provides reference
With purposes of discussion, not it is used for being any limitation as the utility model.
Referring to Fig. 1, a kind of horizontal well casing pipe inward eddy sand flushing tool includes joint 1, bearing block 3 and stirs sand body 7, bearing 4
Blocked in bearing block 3, by bearing cap 5, one end of joint 1 is equipped with pressure cap 2 provided with external screw thread, and bearing block 3 is arranged on and connect
First 1 other end, fixed by steady pin 6 and joint 1；The outer wall for stirring sand body 7 is provided with helicla flute, both ends are arranged in bearing 4
And held out against by the pressure cap 2 on joint 1 and the bearing block 3 at both ends.This instrument both ends are symmetrical structure, between each component
Predominantly Automatic manual transmission and threaded connection relation, it both can guarantee that the Stability Analysis of Structures and can of this instrument ensured the sealing of this instrument.
The sand body 7 that stirs is provided with the assembling step being engaged with the inner chamber of bearing block 3, the spiral shell of outer wall provided with centre bore, both ends
Spin slot is at least provided with two.
The spiral angle for stirring the outer wall helicla flute of sand body 7 is set between 40-50 degree.Stir sand body 7 by with bearing block
3 cooperation, the autorotation under current drive.
The cylindrical of the bearing block 3 is threadedly coupled provided with external screw thread with centralizer body 8.
The centre bore of the centralizer body 8 is with internal thread, outer wall at least provided with three wiper blocks.
The external diameter of the centralizer body 8 is less than the internal diameter of sleeve pipe and more than the external diameter for stirring sand body 7.What is connected on bearing block 3 helps
It roman 8, can ensure that instrument is placed in the middle all the time, and make to stir sand body 7 not producing with sleeve pipe and contact friction.
This instrument is connected to the bottom G.I.H of oil pipe column, is used directly for sand washing；This tool lower portion connects
First 1 external screw thread can also be connected with oil pipe or aid.
The embodiment described above is only exemplary embodiments, but the utility model is not limited only to these embodiments, ability
The technical staff in domain can make modification under without departing from spirit of the present utility model and enlightenment.Aspect disclosed herein may
In the presence of many changes, combination and modification, and all in the scope of the utility model, therefore, protection domain is not limited only to above
Explanation.
Claims (6)
1. a kind of horizontal well casing pipe inward eddy sand flushing tool, it is characterized in that, including joint, bearing block and sand body is stirred, bearing installation
Blocked in bearing block, by bearing cap, one end of joint is equipped with pressure cap provided with external screw thread, and bearing block is arranged on the another of joint
Hold, fixed by steady pin and joint；The outer wall for stirring sand body is provided with helicla flute, both ends installation within the bearing and by installed in connecing
The bearing block of pressure cap and both ends on head is held out against.
2. a kind of horizontal well casing pipe inward eddy sand flushing tool as claimed in claim 1, it is characterized in that, it is described to stir during sand body is provided with
Heart hole, both ends are provided with the assembling step being engaged with bearing block inner chamber, and the helicla flute of outer wall is at least provided with two.
3. a kind of horizontal well casing pipe inward eddy sand flushing tool as claimed in claim 1 or 2, it is characterized in that, it is described to stir outside sand body
The spiral angle of wall helicla flute is set between 40-50 degree.
4. a kind of horizontal well casing pipe inward eddy sand flushing tool as claimed in claim 1 or 2, it is characterized in that, the bearing block
It is cylindrical to be threadedly coupled provided with external screw thread with centralizer body.
5. a kind of horizontal well casing pipe inward eddy sand flushing tool as claimed in claim 4, it is characterized in that, the center of the centralizer body
Pore area has internal thread, outer wall at least provided with three wiper blocks.
6. a kind of horizontal well casing pipe inward eddy sand flushing tool as claimed in claim 5, it is characterized in that, the external diameter of the centralizer body
Less than sleeve pipe internal diameter and more than stirring the external diameter of sand body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720521089.5U CN206942702U (en) | 2017-05-11 | 2017-05-11 | A kind of horizontal well casing pipe inward eddy sand flushing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720521089.5U CN206942702U (en) | 2017-05-11 | 2017-05-11 | A kind of horizontal well casing pipe inward eddy sand flushing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206942702U true CN206942702U (en) | 2018-01-30 |
Family
ID=61361553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720521089.5U Expired - Fee Related CN206942702U (en) | 2017-05-11 | 2017-05-11 | A kind of horizontal well casing pipe inward eddy sand flushing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206942702U (en) |
-
2017
- 2017-05-11 CN CN201720521089.5U patent/CN206942702U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180130 Termination date: 20200511 |