CN218542232U - Corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug - Google Patents
Corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug Download PDFInfo
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- CN218542232U CN218542232U CN202222985560.XU CN202222985560U CN218542232U CN 218542232 U CN218542232 U CN 218542232U CN 202222985560 U CN202222985560 U CN 202222985560U CN 218542232 U CN218542232 U CN 218542232U
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- sliding sleeve
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Abstract
The utility model belongs to the technical field of the fracturing stopper, especially, for a fracturing stopper is proclaimed oneself to corrosion-resistant well cementation sliding sleeve, which comprises an outer shell, the shell is the cylinder structure, the head end of shell passes through screw thread fixedly connected with hood, four first floor rectangular holes and four second floor rectangular holes have been seted up to the front end partition of shell outer wall, and first floor rectangular hole and second floor rectangular hole keep the interval at the axial, misplace at the circumferencial direction, and the gomphosis has first outer latch segment that opens in the first floor rectangular hole, and the gomphosis has the outer latch segment that opens of second in the second floor rectangular hole, and the inboard of first outer latch segment and the outer latch segment that opens of second all is equipped with the wedge. The utility model discloses a two four pyramid platforms all control the radial movement of the latch segment that opens outward through the outer latch segment that T type guide way and T type slider gomphosis correspond with it, make its outer wall that stretches out the shell when needing the anteextension, retraction that also can be smooth and easy when needing the retraction, so that the utility model discloses the main part smoothly passes in the hole.
Description
Technical Field
The utility model relates to a fracturing stopper technical field specifically is a fracturing stopper is proclaimed oneself to corrosion-resistant well cementation sliding sleeve.
Background
The existing pressure plug is used for fixing a part of a well wall and is often extended out of a drilled hole in an uncontrolled manner, the pressure plug cannot smoothly enter a set working position to position the hole, and the fracturing part cannot smoothly retract after the first time of fixing of the fracturing plug or the repositioning is needed because of inaccurate positioning; in addition, mud water produced during drilling is prone to seep into the hole and further into the movable part of the pressure plug, resulting in the plugging of the fracturing plug in the hole. Therefore, a corrosion-resistant self-sealing fracturing plug for a well cementation sliding sleeve is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a fracturing plug is proclaimed oneself to corrosion-resistant well cementation sliding sleeve has solved the problem that proposes in the above-mentioned background art.
(II) technical scheme
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a fracturing plug is proclaimed oneself to corrosion-resistant well cementation sliding sleeve, includes the shell, the shell is cylinder structure, the head end of shell passes through screw thread fixedly connected with hood, four first layer rectangular holes and four second floor rectangular holes have been seted up to shell outer wall's front end partition, first layer rectangular hole and second floor rectangular hole keep the interval, misplace at the circumferencial direction in the axial, and the gomphosis has first outer locking block that opens in the first layer rectangular hole, and the gomphosis has the outer locking block that opens of second in the second floor rectangular hole, and the inboard of first outer locking block and the outer locking block that opens of second all is equipped with the wedge, and the inboard of first outer locking block and the outer locking block that opens of second all is fixed and is equipped with T type slider, the shell inner chamber has first four pyramid platform, second four pyramid platform and sliding plug by hood to cone tail direction activity interlude in proper order, the outer wall of first four pyramid platform passes through wedge and first outer locking block adaptation that opens, the outer wall of first four pyramid platform passes through the wedge and opens the T type slider that opens of second, the outer wall of second divides four pyramid type slider that opens the guide groove and sets up four T type slider, and the outer wall of T type slider that opens the T type slider that opens the second T type slider, and open the outer wall that opens the guide groove is seted up through four T type slider that four pyramid outer wall.
Furthermore, a return spring is fixed in the middle of the inner cavity of the top cap and abuts against the bottom end of the first quadrangular frustum pyramid.
Furthermore, the first outward-opening locking block and the second outward-opening locking block are provided with anti-falling sawteeth protruding out of one side of the shell.
Furthermore, the tail end of the shell is provided with a connecting internal thread.
Furthermore, a screw hole is formed in the center line of the first quadrangular frustum pyramid, a bolt penetrates through the center of the sliding plug, and the bolt penetrates through a round hole in the center of the second quadrangular frustum pyramid to be screwed with the screw hole.
Furthermore, an isolation column is fixedly arranged at the front end of the second rectangular pyramid platform, and the height of the isolation column is equal to the axial edge distance of the first layer of rectangular holes and the second layer of rectangular holes.
(III) advantageous effects
Compared with the prior art, the utility model provides a fracturing plug is proclaimed oneself to corrosion-resistant well cementation sliding sleeve possesses following beneficial effect:
the utility model discloses an all open the latch segment outward that corresponds with it through T type guide way and T type slider gomphosis of two four pyramid platforms, consequently can control the radial movement of open the latch segment outward, make its outer wall that stretches out the shell when needing the anteextension, also can smooth and easy withdrawal when needing the withdrawal, so that the utility model discloses the main part smoothly passes in the hole to utilize the pressure of the seepage liquid in the hole, convert the resistance into power.
Drawings
FIG. 1 is a schematic partial sectional view of the main structure of the present invention;
FIG. 2 is a schematic side sectional view of the main structure of the present invention;
FIG. 3 is a schematic view of the connection between the first quadrangular frustum and the first outwardly expanding locking block of the present invention;
fig. 4 is an appearance structure diagram of the present invention.
In the figure: 1. a housing; 2. a top cap; 3. a first layer of rectangular holes; 4. a second layer of rectangular holes; 5. a first external-expanding locking block; 6. a second exterior locking block; 7. a wedge-shaped surface; 8. a T-shaped slider; 9. a first pyramid frustum; 10. A second pyramid frustum; 11. a sliding plug; 12. a first T-shaped guide groove; 13. a second T-shaped guide groove; 14. A return spring; 15. anti-falling sawteeth; 16. connecting the internal threads; 17. a screw hole; 18. a bolt; 19. and (4) isolating columns.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1, 2, 3 and 4, an embodiment of the present invention provides a corrosion-resistant self-sealing fracture plug for a well cementation sliding sleeve, which comprises a housing 1, wherein the housing 1 is a cylindrical structure, the head end of the housing 1 is fixedly connected with a top cap 2 through a screw thread, the front end of the outer wall of the housing 1 is provided with four first layer rectangular holes 3 and four second layer rectangular holes 4 in equal parts, the first layer rectangular holes 3 and the second layer rectangular holes 4 maintain a distance in the axial direction and are staggered in the circumferential direction, a first outward-opening locking block 5 is embedded in the first layer rectangular holes 3, a second outward-opening locking block 6 is embedded in the second layer rectangular holes 4, the inner sides of the first outward-opening locking block 5 and the second outward-opening locking block 6 are both provided with a wedge surface 7, the inboard of first outer interlocking block 5 and the outer interlocking block 6 of second all fixes and is equipped with T type slider 8, 1 inner chamber of shell has first four pyramid platform 9 by top cap 2 to awl tail direction activity interlude in proper order, four pyramid platform 10 of second and sliding plug 11, the outer wall of first four pyramid platform 9 passes through wedge 7 and first outer interlocking block 5 looks adaptation, the outer wall of second four pyramid platform 10 passes through wedge 7 and the outer interlocking block 6 looks adaptation of second, four first T type guide way 12 have been seted up to the outer wall equipartition of first four pyramid platform 9, four second T type guide way 13 have been seted up to the outer wall equipartition of second four pyramid platform 10, first outer interlocking block 5 passes through the first T type guide way 12 of T type slider 8 gomphosis, the outer interlocking block 6 of second passes through 8 gomphosis second T type guide way 13 of T type slider.
When the sliding plug works, when the tail end of the sliding plug 11 is pressed, the sliding plug moves from the tail end to the head end of the shell 1, the pressure is sequentially transmitted to the second quadrangular frustum 10 and the first quadrangular frustum 9, the first quadrangular frustum 9 and the second quadrangular frustum 10 exert thrust on the wedge-shaped surface 7 through the outer wall, the first outwards-expanding locking block 5 and the second outwards-expanding locking block 6 are pushed out from the first layer of rectangular holes 3 and the second layer of rectangular holes 4, and pressure is exerted on holes in the periphery of the shell 1, so that the shell 1 is positioned in the holes; on the contrary, when the tail end of the sliding plug 11 is under insufficient pressure, the thrust exerted by the first quadrangular frustum 9 and the second quadrangular frustum 10 on the wedge-shaped surface 7 is insufficient to push the first externally-expanding locking block 5 and the second externally-expanding locking block 6, and at the moment, the first externally-expanding locking block 5 and the second externally-expanding locking block 6 are positioned in the inner cavity of the shell 1 and cannot automatically extend out of the outer wall of the shell 1, so that the shell 1 can smoothly pass through the hole; the pressure of the sliding plug 11 can be from the high pressure gas at the rear end of the housing 1, or from the liquid filled at the rear end of the housing 1, including the liquid leaking out of the holes, so that the resistance can be converted into power.
Because first four pyramid platform 9 and the four pyramid platform 10 of second are all through first T type guide way 12, the first outer latch segment 5 of second T type guide way 13 and the 8 gomphosis of T type slider and the outer latch segment 6 of second, consequently can be fine control the radial movement of the first outer latch segment 5 of opening and the outer latch segment 6 of second, stretch out the outer wall of shell 1 when making it need stretch before, also can smooth and easy withdrawal when needing the withdrawal, so that the utility model discloses the main part smoothly walks in the hole.
As shown in fig. 2, in some embodiments, a return spring 14 is fixed in the middle of the inner cavity of the top cap 2, and the return spring 14 abuts against the bottom end of the first quadrangular frustum pyramid 9.
Wherein, reset spring 14 acts on first four pyramid platform 9, four pyramid platform 10 of second and sliding plug 11 with elasticity, when reducing the pressure to sliding plug 11 or take out the water that oozes in the hole, reset spring 14 will promote first four pyramid platform 9, four pyramid platform 10 of second, first T type guide way 12 and second T type guide way 13 exert the counter force to T type slider 8 this moment, will stick out in the first outer tension locking piece 5 of shell 1 outer wall and the outer tension locking piece 6 of second and pull back, so just can with the utility model discloses the main part is pulled out from the hole, or makes it continue to walk downwards to in order to relocate or will the utility model discloses the main part is pulled out from the hole and is carried out the reutilization.
In some embodiments, as shown in fig. 3, the first flared locking block 5 and the second flared locking block 6 are provided with anti-falling saw teeth 15 protruding from one side of the housing 1.
In some embodiments, as shown in fig. 1, the rear end of the housing 1 is provided with an internal connecting thread 16.
Connect internal thread 16 to be used for connecting drilling rod or guiding tube, so that will the utility model discloses the main part is transferred to the hole degree of depth of setting for the height to and reach and set for the degree of depth and then wherein fill high-pressure gas or liquid.
In some embodiments, as shown in fig. 2, the center line of the first quadrangular frustum 9 is provided with a screw hole 17, a bolt 18 is inserted through the center of the sliding plug 11, and the bolt 18 penetrates through a circular hole in the center of the second quadrangular frustum 10 to be screwed into the screw hole 17.
When assembling, the bolt 18 is inserted from the center of the sliding plug 11, then penetrates through the second quadrangular frustum 10, and is screwed with the screw hole 17, thereby forming the pressure transmission mechanism of the utility model.
In some embodiments, as shown in fig. 2, the front end of the second rectangular frustum 10 is fixedly provided with an isolation pillar 19, and the height of the isolation pillar 19 is equal to the axial distance between the first layer rectangular hole 3 and the second layer rectangular hole 4.
The separation column 19 is positioned between the first quadrangular frustum 9 and the second quadrangular frustum 10, and the lengths of the first quadrangular frustum and the second quadrangular frustum are adjusted so as to be convenient to process or assemble and to be matched with the axial edge distances of the first layer of rectangular holes 3 and the second layer of rectangular holes 4.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a fracturing plug is proclaimed oneself to corrosion-resistant well cementation sliding sleeve, includes shell (1), its characterized in that: the shell (1) is of a cylinder structure, the head end of the shell (1) is fixedly connected with a top cap (2) through threads, the front end of the outer wall of the shell (1) is equally divided into four first-layer rectangular holes (3) and four second-layer rectangular holes (4), the first-layer rectangular holes (3) and the second-layer rectangular holes (4) are axially spaced and staggered in the circumferential direction, a first outward-opening locking block (5) is embedded in each first-layer rectangular hole (3), a second outward-opening locking block (6) is embedded in each second-layer rectangular hole (4), and wedge faces (7) are arranged on the inner sides of the first outward-opening locking block (5) and the second outward-opening locking block (6), the inner sides of the first outer locking block (5) and the second outer locking block (6) are fixedly provided with T-shaped sliding blocks (8), the inner cavity of the shell (1) is sequentially movably inserted with a first four-pyramid platform (9), a second four-pyramid platform (10) and a sliding plug (11) from a top cap (2) to the cone tail direction, the outer wall of the first four-pyramid platform (9) is matched with the first outer locking block (5) through a wedge surface (7), the outer wall of the second four-pyramid platform (10) is matched with the second outer locking block (6) through a wedge surface (7), and the outer wall of the first four-pyramid platform (9) is equally divided into four first T-shaped guide grooves (12), four second T type guide way (13) have been seted up to the outer wall equipartition of second four pyramid platform (10), first outer check lock block (5) of opening pass through first T type guide way (12) of T type slider (8) gomphosis, second outer check lock block (6) of opening pass through T type slider (8) gomphosis second T type guide way (13).
2. The corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug as claimed in claim 1, wherein: the middle part of the inner cavity of the top cap (2) is fixed with a return spring (14), and the return spring (14) abuts against the bottom end of the first quadrangular frustum pyramid (9).
3. The corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug as claimed in claim 1, wherein: the first outward-opening locking block (5) and the second outward-opening locking block (6) protrude out of one side of the shell (1) and are provided with anti-falling sawteeth (15).
4. The corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug as claimed in claim 1, wherein: the tail end of the shell (1) is provided with a connecting internal thread (16).
5. The corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug as claimed in claim 1, wherein: the center line of the first quadrangular frustum pyramid (9) is provided with a screw hole (17), a bolt (18) penetrates through the center of the sliding plug (11), and the bolt (18) penetrates through a round hole in the center of the second quadrangular frustum pyramid (10) and is screwed with the screw hole (17).
6. The corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug as claimed in claim 1, wherein: and an isolation column (19) is fixedly arranged at the front end of the second quadrangular frustum pyramid (10), and the height of the isolation column (19) is equal to the axial edge distance of the first layer of rectangular holes (3) and the second layer of rectangular holes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222985560.XU CN218542232U (en) | 2022-11-09 | 2022-11-09 | Corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222985560.XU CN218542232U (en) | 2022-11-09 | 2022-11-09 | Corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug |
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| Publication Number | Publication Date |
|---|---|
| CN218542232U true CN218542232U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222985560.XU Active CN218542232U (en) | 2022-11-09 | 2022-11-09 | Corrosion-resistant well cementation sliding sleeve self-sealing fracturing plug |
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| CN (1) | CN218542232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514078A (en) * | 2024-01-04 | 2024-02-06 | 江苏雄越石油机械设备制造有限公司 | High-pressure fracturing wellhead capable of preventing corrosion of gas impurities |
-
2022
- 2022-11-09 CN CN202222985560.XU patent/CN218542232U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514078A (en) * | 2024-01-04 | 2024-02-06 | 江苏雄越石油机械设备制造有限公司 | High-pressure fracturing wellhead capable of preventing corrosion of gas impurities |
| CN117514078B (en) * | 2024-01-04 | 2024-03-29 | 江苏雄越石油机械设备制造有限公司 | High-pressure fracturing wellhead capable of preventing corrosion of gas impurities |
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