CN220267660U - R-type bonnet blanking plug - Google Patents
R-type bonnet blanking plug Download PDFInfo
- Publication number
- CN220267660U CN220267660U CN202321925706.XU CN202321925706U CN220267660U CN 220267660 U CN220267660 U CN 220267660U CN 202321925706 U CN202321925706 U CN 202321925706U CN 220267660 U CN220267660 U CN 220267660U
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- Prior art keywords
- sleeve
- bonnet
- positioning key
- sealing
- mandrel
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- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an R-type bonnet type blanking plug, which comprises a locking mandrel, a bonnet and a balance rod; the locking mandrel comprises an inner salvaging neck, a positioning key sleeve, a spring, a telescopic sleeve, a positioning pin key, a set screw, a supporting ring I, a V-shaped sealing I and a sealing mandrel; the bonnet includes a body and a joint; the balance rod comprises a P-type balance rod, a support ring II, a V-type seal II and a press cap. The upper end of the inner salvaging neck of the locking mandrel is connected with the tool string to go into the well together, and the lower end is connected with the telescopic sleeve through threads; the positioning key sleeve is sleeved outside the telescopic sleeve, the upper end of the positioning key sleeve is aligned with the bottom of the inner fishing neck, and the lower end of the positioning key sleeve is connected with the sealing mandrel through threads; the spring is arranged in the positioning key sleeve and used for controlling the opening and closing of the key; the telescopic sleeve is arranged between the positioning key sleeve and the sealing mandrel and is combined with the spring to control the opening and closing of the key. The utility model is used for blocking the pressure communication of the production pipe column at a certain depth, and has the advantages of convenient operation and use and strong applicability.
Description
Technical Field
The utility model relates to the technical field of a blanking plug capable of blocking pressure communication of a production string at a certain depth, in particular to an R-type bonnet blanking plug.
Background
If need repair christmas tree, seal and separate stratum, sit and seal hydraulic packer and pressure testing and judge whether oil pipe leaks, need the intercommunication of shutoff pressure in certain degree of depth department in the pit, but the plugging device pressure-bearing ability among the prior art is weak, and the shutoff effect is not good, and in the oil gas well that is difficult for going out sand and pressure differential is great in the pit, when the sand buries appears, be difficult to get the plugging device and put.
Disclosure of Invention
The utility model aims to provide an R-type bonnet type blanking plug which has stable performance and strong bearing capacity, and is easy to balance pressure from a sand production well, so that the R-type bonnet type blanking plug can be taken out from the pit relatively easily.
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
an R-bonnet type blanking plug, comprising:
inner salvaging neck, positioning key sleeve, spring, telescopic sleeve, positioning pin key, holding screw, support ring I, V-shaped seal I, sealing mandrel, body, joint, P-shaped balance bar, support ring II, V-shaped seal II and pressing cap. The upper end of the inner fishing neck is connected with the tool string, and the lower end of the inner fishing neck is connected with the telescopic sleeve through threads; the positioning key sleeve is sleeved outside the telescopic sleeve, the upper end of the positioning key sleeve is aligned with the bottom of the inner fishing neck, and the lower end of the positioning key sleeve is connected with the sealing mandrel through threads; the spring is arranged in the positioning key sleeve and used for controlling the opening and closing of the key; the telescopic sleeve is arranged between the positioning key sleeve and the sealing mandrel, and controls the opening and closing of the key together with the spring; the positioning pin key is arranged in the positioning key sleeve, is arranged on the telescopic sleeve and is pressed by the spring, so that the positioning pin key is not easy to fall off, and can be opened and closed; the set screw is used for preventing the pin from falling off; the support ring I is arranged on the sealing mandrel and plays a role in protecting V-shaped sealing; the V-shaped seal is formed by overlapping a plurality of sealing elements, and has good sealing effect; the end part of the V-shaped seal I is supported by a support ring I; the upper part of the sealing mandrel is connected with the positioning key sleeve through threads, and the lower part of the sealing mandrel is also connected with the valve cap through threads; the upper end of the body is connected with the sealing mandrel through threads, and the lower end of the body is connected with the joint; the upper end of the connector is connected with the body through threads; the upper end of the P-shaped balance rod is connected with a tool string to go into a well, and the lower end of the P-shaped balance rod is connected with the pressure cap through threads; the support ring II is arranged at the tail part of the P-type balance rod, V-shaped seals II are arranged between the support rings II, and the V-shaped seals can seal underground fluid after being assembled with the locking mandrel and the valve cap; the V-shaped seal II is formed by overlapping a plurality of sealing elements, and has good sealing effect; the end part of the V-shaped seal II is supported by a support ring II; the pressing cap is connected with the P-type balance rod through threads, and displacement of the V-type seal II and the support ring II can be limited.
The utility model has at least the following beneficial effects:
according to the utility model, the R-type bonnet type blanking plug is realized, the structural design is reasonable, the use is convenient, and the operation is safe and reliable; the bonnet type blanking plug is different from other blanking plugs, and can be used for fishing out sand on the upper part of the P-type balance rod in the pit easy to discharge sand and then fishing out the P-type balance rod to achieve the purpose of balancing pressure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic view of the structure of an R-bonnet type blanking plug of the present utility model;
FIG. 2 is a schematic cross-sectional view of an R-bonnet type plug according to the present utility model.
Reference numerals illustrate:
1. an inner fishing neck; 2. positioning a key sleeve; 3. a spring; 4. a telescoping sleeve; 5. positioning pin keys; 6. a set screw; 7. a support ring I; 8. v-shaped seal I; 9. sealing the mandrel; 10. a body; 11. a joint; 12. a P-shaped balance bar; 13. a support ring II; 14. v-shaped seal II; 15. and (5) pressing the cap.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.
Referring to fig. 1 to 2, an R-type bonnet type plug according to an embodiment of the utility model includes: a locking mandrel, a bonnet, and a balance bar assembly.
Wherein the locking spindle comprises: the inner fishing neck 1, the positioning key sleeve 2, the spring 3, the telescopic sleeve 4, the positioning pin key 5, the supporting ring I7, the V-shaped seal I8, the sealing mandrel 9, the body 10, the joint 11, the P-shaped balance rod 12, the supporting ring II 13, the V-shaped seal II 14 and the pressing cap 15;
the lower end of the inner fishing neck 1 is in threaded connection with the telescopic sleeve 4, the positioning key sleeve 2 is sleeved outside the telescopic sleeve 4, the upper end face of the positioning key sleeve 2 is attached to the bottom of the inner fishing neck 1, the lower end of the positioning key sleeve 2 is in threaded connection with the sealing mandrel 9, the positioning pin key 5 is installed in the positioning key sleeve 2, and the positioning pin key 5 is seated on the telescopic sleeve 4 and pressed by the spring 3;
the end part of the V-shaped seal I8 is supported by a support ring I7, the end part of the V-shaped seal II 14 is supported by a support ring II 13, the upper part of the seal mandrel 9 is in threaded connection with the positioning key sleeve 2, the lower part of the seal mandrel 9 is in threaded connection with the valve cap, the upper end of the body 10 is in threaded connection with the seal mandrel 9, the lower end of the body 10 is connected with the joint 11, the upper end of the joint 11 is in threaded connection with the body 10, the upper end of the P-shaped balance rod 12 is connected with a tool string in a descending manner, and the lower end of the P-shaped balance rod 12 is in threaded connection with the pressure cap 15;
by adopting the technical scheme, the device has reasonable structural design, convenient use and safe and reliable operation; the bonnet type blanking plug is different from other blanking plugs, and can firstly drag out sand on the upper part of the P-type balance rod 12 and then drag out the P-type balance rod 12 to achieve the purpose of balancing pressure under the well which is easy to go out of sand.
Referring to fig. 1 to 2, an inner fishing neck 1 is of an integral structure, the upper end of the inner fishing neck 1 is connected with a tool string, and the lower end of the inner fishing neck 1 is connected with a telescopic sleeve 4 by threads;
referring to fig. 1 to 2, the positioning key sleeve 2 is of an integral structure, the positioning key sleeve 2 is sleeved outside the telescopic sleeve 4, the upper end of the positioning key sleeve 2 is aligned with the bottom of the inner fishing neck 1, and the lower end of the positioning key sleeve 2 is connected with the sealing mandrel 9 through threads;
referring to fig. 1 to 2, a spring 3 is installed in the positioning key sleeve 2 for controlling the opening and closing of the key;
referring to fig. 1 to 2, the telescopic sleeve 4 is of an integral structure, the telescopic sleeve 4 is arranged between the positioning key sleeve 2 and the sealing mandrel 9, and controls the opening and closing of the keys together with the spring 3;
referring to fig. 1 to 2, the positioning pin key 5 has a boss structure, the positioning pin key 5 is installed in the positioning key sleeve 2, the positioning pin key 5 is seated on the telescopic sleeve 4 and is pressed by the spring 3, and is not easy to fall off, and the positioning pin key 5 can be opened and closed;
referring to fig. 1 to 2, the set screw 6 is used to prevent the pin from falling off;
referring to fig. 1 to 2, the support ring i 7 is of an integral structure, and the support ring i 7 is mounted on the sealing mandrel 9 to protect the sealing member;
referring to fig. 1 to 2, the V-shaped seal i 8 has a combined structure, and the seal i has a V-shaped structure; the sealing device is formed by overlapping a plurality of sealing elements, and has good sealing effect; the end part of the V-shaped seal I8 is supported by a support ring I7;
referring to fig. 1 to 2, the sealing mandrel 9 is of an integral structure, the upper part of the sealing mandrel 9 is connected with the positioning key sleeve 2 through threads, and the lower part of the sealing mandrel 9 is also connected with the valve cap through threads;
referring to fig. 1 to 2, a body 10 is in a boss structure, an upper end of the body 10 is connected with a sealing mandrel 9 through threads, and a lower end of the body is connected with a joint 11;
referring to fig. 1 to 2, a joint 11 is an integral structure, and an upper end of the joint 11 is connected with a body 10 through threads;
referring to fig. 1 to 2, the P-type balance bar 12 is of an integral structure, the upper end of the P-type balance bar 12 is connected with a tool string to go down the well, and the lower end of the P-type balance bar is connected with the press cap 15 through threads;
referring to fig. 1 to 2, a supporting ring ii 13 is an integral structure, and is mounted at the tail of a P-type balance rod 12, a V-type seal ii 14 is mounted between the supporting rings ii 13, and the V-type seal ii 14, a locking mandrel and a valve cap are assembled to seal the underground fluid;
referring to fig. 1 to 2, the V-shaped seal ii 14 has a combined structure, the V-shaped seal ii 14 has a V-shaped structure, and the V-shaped seal ii 14 is formed by overlapping a plurality of sealing members, so that the sealing effect is good; the end part of the V-shaped seal II 14 is supported by a support ring II 13;
referring to fig. 1 to 2, the pressing cap 15 is of an integral structure, and the pressing cap 15 is screwed with the P-type balance bar 12 to limit the displacement of the sealing element ii and the supporting ring ii 13.
The working principle of the utility model is as follows: firstly, loading the spring 3 into the positioning key 5 and then loading the spring into the positioning key sleeve 2 together, then loading the telescopic sleeve 4 from the upper end of the positioning key sleeve 2, aligning the three grooves on the telescopic sleeve 4 with the spring 3, and moving the telescopic sleeve 4 to the left end to be tightly attached to the spring 3; penetrating a sealing mandrel 9 from the lower end of the telescopic sleeve 4, screwing the positioning key sleeve 2 and the sealing mandrel 9, and installing a set screw 6, a supporting ring I7 and a V-shaped seal I8; clamping the positioning key sleeve 2 on a vice, mounting the inner fishing neck 1 at the upper end of the telescopic sleeve 4, screwing, turning around, mounting the body 10 at the lower end of the sealing mandrel 9, screwing, mounting the joint 11 at the lower end of the body 10, and screwing the screw thread; and finally, installing a support ring II 13 and a V-shaped seal II 14 at the lower end of the P-shaped balance rod 12, installing a pressing cap 15, and screwing to finish the assembly.
While worth explaining: the balance bar parts are firstly placed separately and then assembled with the locking mandrel when the balance bar parts are put down in the well.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept, either as a result of the foregoing teachings or as a result of the knowledge or skills of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (8)
1. An R-bonnet type blanking plug, comprising:
a locking mandrel, a bonnet, and a balance bar assembly;
wherein the locking spindle comprises: the inner fishing neck (1), the positioning key sleeve (2), the spring (3), the telescopic sleeve (4), the positioning key (5), the supporting ring I (7), the V-shaped seal I (8), the seal mandrel (9), the body (10), the joint (11), the P-shaped balance rod (12), the supporting ring II (13), the V-shaped seal II (14) and the press cap (15);
the lower end of the inner salvaging neck (1) is in threaded connection with the telescopic sleeve (4), the positioning key sleeve (2) is sleeved outside the telescopic sleeve (4), the upper end face of the positioning key sleeve (2) is attached to the bottom of the inner salvaging neck (1), the lower end of the positioning key sleeve (2) is in threaded connection with the sealing mandrel (9), the positioning pin key (5) is installed in the positioning key sleeve (2), and the positioning pin key (5) is placed on the telescopic sleeve (4) and is pressed by the spring (3);
the end of the V-shaped sealing I (8) is supported by the supporting ring I (7), the end of the V-shaped sealing II (14) is supported by the supporting ring II (13), the upper part of the sealing mandrel (9) is connected with the positioning key sleeve (2) through threads, the lower part of the sealing mandrel (9) is connected with the valve cap through threads, the upper end of the body (10) is connected with the sealing mandrel (9) through threads, the lower end of the body (10) is connected with the joint (11), the upper end of the joint (11) is connected with the body (10) through threads, the upper end of the P-shaped balancing rod (12) is connected with a tool string in a descending mode, and the lower end of the P-shaped balancing rod (12) is connected with the pressing cap (15) through threads.
2. An R-bonnet blanking plug as defined in claim 1, wherein: the device also comprises a set screw (6) for preventing the pin from falling.
3. An R-bonnet blanking plug as defined in claim 2, wherein: the upper end of the spring (3) is arranged in the positioning key sleeve (2), the lower end of the spring (3) penetrates through the hole of the positioning pin key (5), and the telescopic sleeve (4) is arranged between the positioning key sleeve (2) and the sealing mandrel (9).
4. An R-bonnet blanking plug as defined in claim 3, wherein: the support ring I (7) is mounted on the sealing mandrel (9).
5. An R-bonnet blanking plug as defined in claim 4, wherein: the V-shaped seal I (8) is formed by overlapping a plurality of sealing elements.
6. An R-bonnet blanking plug as defined in claim 5, wherein: the support rings II (13) are arranged at the tail parts of the P-type balance rods (12), and V-type seals II (14) are arranged between the support rings II (13).
7. The R-bonnet blanking plug as defined in claim 6, wherein: the V-shaped seal II (14) is formed by overlapping a plurality of sealing elements.
8. The R-bonnet blanking plug as defined in claim 7, wherein: the pressing cap (15) is connected with the P-type balance rod (12) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321925706.XU CN220267660U (en) | 2023-07-20 | 2023-07-20 | R-type bonnet blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321925706.XU CN220267660U (en) | 2023-07-20 | 2023-07-20 | R-type bonnet blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267660U true CN220267660U (en) | 2023-12-29 |
Family
ID=89318239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321925706.XU Active CN220267660U (en) | 2023-07-20 | 2023-07-20 | R-type bonnet blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267660U (en) |
-
2023
- 2023-07-20 CN CN202321925706.XU patent/CN220267660U/en active Active
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