CN205000957U - Separate stratum fracfturing sand control positioner - Google Patents
Separate stratum fracfturing sand control positioner Download PDFInfo
- Publication number
- CN205000957U CN205000957U CN201520705635.1U CN201520705635U CN205000957U CN 205000957 U CN205000957 U CN 205000957U CN 201520705635 U CN201520705635 U CN 201520705635U CN 205000957 U CN205000957 U CN 205000957U
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- elastic mechanism
- sand control
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- locating slot
- location
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Abstract
The utility model discloses a separate stratum fracfturing sand control positioner, including location axle, position sleeve, elastic mechanism, position sleeve upper end is connected the elastic mechanism through the spacer sleeve and is become one whole, then whole cover is at location off -axial wall to only form the annular space between elastic mechanism and the location axle, fix a position epaxial axial long slide orientation groove and the short slide orientation groove seted up in succession, set up the guide way that is used for communicateing two above -mentioned constant head tanks in long slide orientation groove and the bottom of lacking the slide orientation groove, the position sleeve upper end sets up rotatory ring, the radial installation location nail of rotatory ring, location nail stretches into two above -mentioned constant head tanks interior and run on these inslots with the guide way, the outer wall of elastic mechanism sets up the arch, is located that the location of elastic mechanism top position is epaxial to be provided with annular boss. The utility model discloses can make separate stratum fracfturing sand control tubular column carry out accurate location, guarantee fracturing sand control process and go on smoothly.
Description
Technical field
The utility model relates to oil exploitation down-hole positioning device; Specifically a kind of layering fracturing sand control positioner.
Background technology
Deep in loose sand oil accumulation is polluted in well, low production capacity sand output well and middle hyposmosis block sand proof well, in order to improve oil well productivity, usually adopts fracturing sand control to reach volume increase sand control resultant effect.Traditional fracturing sand control adopts after blank tubing carries out formation breakdown, then under enter sand control pipe and carry out annular pack, in especially longer in well section and oil well that non-homogeneity is serious, need to carry out layering fracturing sand control.Every one deck carries out annular pack sand control after repeating formation breakdown again.Working procedure is loaded down with trivial details, and duty cycle is long.Adopt one-trip string layering fracturing sand control can realize optionally fracturing sand control while simplification operation, saving operating cost.But realize every one deck formation breakdown respectively due to tubing string and flow pack requires high for layering fracturing sand control to the positional accuracy of filling mouth, and the transformation dynamics on stratum is larger, often in implementation process, operation pressure is higher, cause the play of operating tool string, directly affect the efficient and success rate of layering fracturing sand control construction.
Utility model content
The purpose of this utility model is to provide a kind of layering fracturing sand control positioner, and separate-layer fracturing sand control string can be made to locate accurately, ensures that fracturing sand control process is carried out smoothly; The utility model layering fracturing sand control positioner can control elasticity location by slideway, tubing string stability is strengthened, effectively prevents the play of the operating tool string caused because pressure in work progress is higher, ensures the efficient and success rate of construction.
In order to reach above-mentioned purpose, the utility model have employed following technical scheme, a kind of layering fracturing sand control positioner, comprise locating shaft, positioning sleeve, elastic mechanism, it is in aggregates that described positioning sleeve upper end connects elastic mechanism by interstage sleeve, then entirety is enclosed within locating shaft outer wall, and only have between elastic mechanism and locating shaft and form annular space, described locating shaft is offered continuously axial long slip locating slot and short slip locating slot, the gathering sill for being communicated with above-mentioned two locating slots is offered in long slip locating slot and the bottom of short slip locating slot, described positioning sleeve upper end arranges rotating ring, rotating ring radial direction installs locating pin, described locating pin to stretch in above-mentioned two locating slots and gathering sill and runs in these grooves, the outer wall of described elastic mechanism arranges projection, the locating shaft being positioned at elastic mechanism top position is provided with the boss of annular.
Described long slip locating slot and short slip locating slot are offered at interval of an angle of 90 degrees.
The distance that described location is pinned to long slip locating slot top equals the distance of boss to elastic mechanism projection, the thickness of described boss equals the width of annular space between elastic mechanism upper port and locating shaft, described elastic mechanism inwall and the position of corresponding outer wall projection is provided with little internal projection.
Described positioning sleeve lower end connects friction sleeve by adapter sleeve.
Described locating shaft upper end connects top connection, and lower end connects lower contact.
Compared to prior art, the utility model has following beneficial effect:
During up and down tubing string, under the effect of friction sleeve pretightning force, the adapter sleeve that order is threaded, interstage sleeve and positioning sleeve position are fixed.Locating pin, under the drive of rotating ring, moves conversion in long and short slip locating slot.When locating pin moves to long slip locating slot top, the positioning boss that locating shaft designs struts the elastic mechanism of positioning sleeve, securely grappling, guarantees that tubing string position is motionless.When not needing location, movable tubing string makes locating pin move to short slip locating slot, the positioning boss on locating shaft moves away the elastic mechanism of positioning sleeve, and elastic mechanism regains original position, realize unlocking, and other location place can be needed to realize resetting and unblock at tubing string.
1, separate-layer fracturing sand control string can be made to locate accurately, ensure that fracturing sand control process is carried out smoothly.
2, control elasticity location by slideway, the stable row of tubing string is strong, effectively prevents the play of the operating tool string caused because pressure in work progress is higher, ensures the efficient and success rate of construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of layering fracturing sand control positioner of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1, top connection; 2, locating shaft; 3, positioning sleeve; 4, lower contact; 5, boss; 6, elastic mechanism; 7, interstage sleeve; 8, rotating ring; 9, locating pin; 10, adapter sleeve; 11, friction sleeve.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
According to Fig. 1-2, a kind of layering fracturing sand control positioner, comprise locating shaft 2, positioning sleeve 3, elastic mechanism 6, it is in aggregates that described positioning sleeve upper end connects elastic mechanism by interstage sleeve 7, then entirety is enclosed within locating shaft outer wall, and only have between elastic mechanism and locating shaft and form annular space, described locating shaft is offered continuously axial long slip locating slot and short slip locating slot, the gathering sill for being communicated with above-mentioned two locating slots is offered in long slip locating slot and the bottom of short slip locating slot, described positioning sleeve upper end arranges rotating ring 8, rotating ring radial direction installs locating pin 9, described locating pin to stretch in above-mentioned two locating slots and gathering sill and runs in these grooves, the outer wall of described elastic mechanism arranges projection, the locating shaft being positioned at elastic mechanism top position is provided with the boss 5 of annular.Described long slip locating slot and short slip locating slot are offered at interval of an angle of 90 degrees.The distance that described location is pinned to long slip locating slot top equals the distance of boss to elastic mechanism projection, the thickness of described boss equals the width of annular space between elastic mechanism upper port and locating shaft, described elastic mechanism inwall and the position of corresponding outer wall projection is provided with little internal projection.Described positioning sleeve lower end connects friction sleeve 11 by adapter sleeve 10.Described locating shaft upper end connects top connection 1, and lower end connects lower contact 4.
Inside and outside interconnective locating shaft 2 and positioning sleeve 3 is provided with between top connection 1 and lower contact 4; Described locating shaft 2 front end is provided with boss, and in described locating shaft 2, rear end is provided with long slip locating slot and short slip locating slot, and described long and short slip locating slot is connected with gathering sill; Described positioning sleeve 3 is threaded with interstage sleeve 7, adapter sleeve 10 and friction sleeve 11 order; Described positioning sleeve 3 upper end is provided with elastic mechanism, and described boss 5 is connected with described elastic mechanism 6 is inside and outside; Arrange the stepped hole placing rotating ring after described adapter sleeve 10 nose threads, this screw thread is threaded with interstage sleeve rear end; Described locating pin 9 is threaded with described rotating ring 8, and radial direction is placed in slip locating slot.Elastic mechanism 6 is multi-clove type structure at cross section.
The concrete operation method of layering fracturing sand control positioner of the present utility model is: during construction, and after fracturing sand control construction tool is lowered into position, under the effect of friction sleeve 11 pretightning force, the adapter sleeve 10 that order is threaded, interstage sleeve 7 and positioning sleeve 3 position are fixed.Locating pin 9 is under the drive of rotating ring 8, conversion is moved along long and short slip locating slot, when locating pin 9 moves to long slip locating slot top, on locating shaft 2, the positioning boss 5 of design struts the elastic mechanism 6 of positioning sleeve 3, grappling securely, guarantee that tubing string position is motionless, implement fracturing sand control construction.
After construction terminates, when not needing location, movable tubing string makes locating pin 9 move to short slip locating slot again, and the positioning boss 5 on locating shaft 2 moves, and leave the elastic mechanism 6 of positioning sleeve 3, elastic mechanism 6 regains original position, and tubing string realizes unlocking.
Mobile tubing string, other can need location place to realize resetting and unblock at tubing string.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. a layering fracturing sand control positioner, it is characterized in that, comprise locating shaft, positioning sleeve, elastic mechanism, it is in aggregates that described positioning sleeve upper end connects elastic mechanism by interstage sleeve, then entirety is enclosed within locating shaft outer wall, and only have between elastic mechanism and locating shaft and form annular space, described locating shaft is offered continuously axial long slip locating slot and short slip locating slot, the gathering sill for being communicated with above-mentioned two locating slots is offered in long slip locating slot and the bottom of short slip locating slot, described positioning sleeve upper end arranges rotating ring, rotating ring radial direction installs locating pin, described locating pin to stretch in above-mentioned two locating slots and gathering sill and runs in these grooves, the outer wall of described elastic mechanism arranges projection, the locating shaft being positioned at elastic mechanism top position is provided with the boss of annular.
2. a kind of layering fracturing sand control positioner according to claim 1, is characterized in that, described long slip locating slot and short slip locating slot are offered at interval of an angle of 90 degrees.
3. a kind of layering fracturing sand control positioner according to claim 1, it is characterized in that, the distance that described location is pinned to long slip locating slot top equals the distance of boss to elastic mechanism projection, the thickness of described boss equals the width of annular space between elastic mechanism upper port and locating shaft, described elastic mechanism inwall and the position of corresponding outer wall projection is provided with little internal projection.
4. a kind of layering fracturing sand control positioner according to claim 1, is characterized in that, described positioning sleeve lower end connects friction sleeve by adapter sleeve.
5. a kind of layering fracturing sand control positioner according to claim 1, is characterized in that, described locating shaft upper end connects top connection, and lower end connects lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705635.1U CN205000957U (en) | 2015-09-14 | 2015-09-14 | Separate stratum fracfturing sand control positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705635.1U CN205000957U (en) | 2015-09-14 | 2015-09-14 | Separate stratum fracfturing sand control positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205000957U true CN205000957U (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705635.1U Active CN205000957U (en) | 2015-09-14 | 2015-09-14 | Separate stratum fracfturing sand control positioner |
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| Country | Link |
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| CN (1) | CN205000957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952624A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of infinite stages full-bore fracturing sliding bush |
| CN109577973A (en) * | 2018-11-01 | 2019-04-05 | 中国石油天然气集团有限公司 | A kind of situ downhole brill survey device |
-
2015
- 2015-09-14 CN CN201520705635.1U patent/CN205000957U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952624A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of infinite stages full-bore fracturing sliding bush |
| CN108952624B (en) * | 2017-05-19 | 2021-06-25 | 中国石油化工股份有限公司 | Infinite-stage full-bore fracturing sliding sleeve |
| CN109577973A (en) * | 2018-11-01 | 2019-04-05 | 中国石油天然气集团有限公司 | A kind of situ downhole brill survey device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |