CN221346864U - Novel X/R type balance valve blanking plug - Google Patents
Novel X/R type balance valve blanking plug Download PDFInfo
- Publication number
- CN221346864U CN221346864U CN202323285108.3U CN202323285108U CN221346864U CN 221346864 U CN221346864 U CN 221346864U CN 202323285108 U CN202323285108 U CN 202323285108U CN 221346864 U CN221346864 U CN 221346864U
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- Prior art keywords
- balance valve
- sleeve
- plug
- internal thread
- telescopic
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- 238000007789 sealing Methods 0.000 claims description 33
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 abstract description 5
- 239000003129 oil well Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to a novel X/R type balance valve blanking plug, which comprises an outer fishing head, a telescopic sleeve, a sleeve, an inner pipe, a spring piece, a positioning key, a balance valve core, a balance valve seat, a slip, a plug, a first shear pin, a second shear pin, a V-shaped seal, a first O-shaped seal, a second O-shaped seal and a third O-shaped seal; according to the utility model, through the arrangement of opening and closing the balance hole on the balance valve seat, under the condition of ensuring that the up-down differential pressure is balanced when the X/R type plug is salvaged, the problem that the salvage difficulty and the danger coefficient of the plug are increased due to the fact that the balance hole which balances the up-down differential pressure is closed due to a large amount of sediment deposited in the oil well exploitation process after the X/R type plug works underground for a long time is avoided, and the salvage head is in an outer salvage form, so that sediment is prevented from being deposited in the working cylinder, the salvage of the X/R type plug is facilitated, the salvage difficulty coefficient is reduced, and the utility model has a simple structure and strong practicability.
Description
Technical Field
The utility model relates to the technical field of underground operation in petroleum exploitation, in particular to a novel X/R type balance valve plug.
Background
In the production and production increase of oil and gas wells, the upper and lower channels of the inner cavity of the oil pipe are often required to be isolated at specific positions, and the upper and lower sealing is realized. The common use method is that a working cylinder is connected to a production pipe column, and when the upper and lower isolation of the production pipe column is required to be realized, a well head blanking plug or a steel wire operation blanking plug seat is sealed in the working cylinder which is previously put in; the two are matched with each other, so that the upper and lower isolation and sealing in the pipe are realized. The X/R type blanking plug can realize up-and-down pressure bearing and sealing. When the X/R type plug used in the industry works underground for a long time, a large amount of sediment is deposited in the oil well exploitation process, the X/R type plug salvage head is buried, and a balance hole for balancing up-down pressure difference is sealed, so that the salvage and recovery difficulty and danger coefficient of the plug are increased; for this reason, there is a need to develop a new type of X/R blanking plug that is simple and reliable.
Disclosure of utility model
The utility model aims to solve the defects of the prior art and provides a novel X/R type balance valve blanking plug.
The utility model adopts the following technical scheme to realize the aim: a novel X/R type balance valve blanking plug comprises an outer fishing head, a telescopic sleeve, a sleeve, an inner pipe, a spring piece, a positioning key, a balance valve core, a balance valve seat, slips, a plug, a first shear pin, a second shear pin, a V-shaped sealing ring, a first O-shaped sealing ring, a second O-shaped sealing ring and a third O-shaped sealing ring; salvage first bottom fixed connection to telescopic tube top, telescopic tube periphery butt sleeve inner wall, telescopic tube bottom fixed connection is to balanced case top, balanced case bottom is through second shear pin fixed connection slips, sleeve bottom fixed connection is to the inner tube top, inner tube bottom fixed connection is to balanced disk seat top, balanced disk seat bottom fixed connection end cap, be equipped with a plurality of first logical grooves on the sleeve, the locating key is located first logical inslot, spring leaf one end butt is to telescopic tube periphery, and the other end butt is on the locating key, balanced case and slips are located the inner chamber that telescopic tube, sleeve, inner tube and balanced disk seat are constituteed.
Particularly, the periphery of the salvaging head is provided with a salvaging neck, and the bottom of the salvaging head is provided with a first internal thread.
In particular, the telescopic sleeve top periphery is equipped with first external screw thread, and first external screw thread threaded connection is on first internal screw thread, telescopic sleeve bottom periphery is equipped with first boss, telescopic sleeve bottom is equipped with the second internal screw thread, telescopic sleeve periphery is equipped with a plurality of first recesses along the axial, the locating key is equipped with the second through groove, the spring leaf middle part is buckled for the telescopic sleeve of location, spring leaf one end butt is to in the first recess, and the other end butt is to in the second through groove.
In particular, the inner wall of the top of the sleeve is provided with a second boss, a first shear pin is arranged at the joint of the telescopic sleeve and the sleeve, and a third internal thread is arranged at the bottom of the sleeve.
In particular, the third external thread on the top of the inner tube is connected to the third internal thread in a threaded manner, and the fourth external thread is arranged on the bottom of the inner tube.
Particularly, the periphery of the top of the balance valve core is provided with a second external thread which is connected to the second internal thread in a threaded manner, the periphery of the bottom of the balance valve core is provided with a second groove and a third groove, and an O-shaped sealing ring is respectively arranged in the second groove and the third groove.
Particularly, a balance hole is formed in the balance valve seat, a fourth internal thread is formed in the top of the balance valve seat and is connected to the fourth external thread in a threaded mode, a V-shaped sealing ring and a second O-shaped sealing ring are arranged at the joint of the balance valve seat and the inner pipe, a fifth external thread is formed in the bottom of the balance valve seat, a fifth internal thread is formed in the plug, the fifth internal thread is connected to the fifth external thread in a threaded mode, and a third O-shaped sealing ring is arranged at the joint of the balance valve seat and the plug.
The beneficial effects of the utility model are as follows: according to the utility model, through the arrangement of opening and closing the balance hole on the balance valve seat, under the condition of ensuring that the up-down differential pressure is balanced when the X/R type plug is salvaged, the problem that the salvage difficulty and the danger coefficient of the plug are increased due to the fact that the balance hole which balances the up-down differential pressure is closed due to a large amount of sediment deposited in the oil well exploitation process after the X/R type plug works underground for a long time is avoided, and the salvage head is in an outer salvage form, so that sediment is prevented from being deposited in the working cylinder, the salvage of the X/R type plug is facilitated, the salvage difficulty coefficient is reduced, and the utility model has a simple structure and strong practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model in an open state;
FIG. 3 is a schematic view of the closed state structure of the present utility model;
FIG. 4 is an enlarged schematic view of the utility model at A of FIG. 2;
FIG. 5 is an enlarged schematic view of the utility model at B of FIG. 2;
Fig. 6 is a schematic diagram of the structure of the slip of the present utility model.
In the figure: 1-an outer fishing head; 101-salvaging a neck; 2-a telescopic sleeve; 201-a first boss; 202-a first groove; 3-sleeve; 301-a first through groove; 302-a second boss; 4-an inner tube; 5-a spring piece; 6-positioning key; 601-a second through slot; 7-balancing a valve core; 701-a second groove; 702-a third groove; 8-balancing valve seats; 801-balance hole; 9-slips; 10-plugs; 11-first shear pins; 12-a second shear pin; 13-V-shaped sealing rings; 14-a first O-shaped sealing ring; 15-a second O-shaped sealing ring; 16-third O-shaped sealing ring.
The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
1-6, a novel X/R type balance valve plug comprises an outer fishing head 1, a telescopic sleeve 2, a sleeve 3, an inner pipe 4, a spring piece 5, a positioning key 6, a balance valve core 7, a balance valve seat 8, a slip 9, a plug 10, a first shear pin 11, a second shear pin 12, a V-shaped sealing ring 13, a first O-shaped sealing ring 14, a second O-shaped sealing ring 15 and a third O-shaped sealing ring 16; the fishing head 1 bottom fixed connection is to telescopic tube 2 top, telescopic tube 2 peripheral butt sleeve 3 inner wall, telescopic tube 2 bottom fixed connection is to balanced case 7 top, balanced case 7 bottom is through second shear pin 12 fixed connection slips 9, sleeve 3 bottom fixed connection is to inner tube 4 top, inner tube 4 bottom fixed connection is to balanced disk seat 8 top, balanced disk seat 8 bottom fixed connection end cap 10, be equipped with a plurality of first logical grooves 301 on the sleeve 3, locating key 6 is located first logical groove 301, 5 one end butt of spring leaf is to telescopic tube 2 peripheral, and the other end butt is on locating key 6, balanced case 7 and slips 9 are located telescopic tube 2, sleeve 3, inner tube 4 and the inner chamber that balanced disk seat 8 constitutes.
In particular, the periphery of the fishing head 1 is provided with a fishing neck 101, and the bottom of the fishing head 1 is provided with a first internal thread.
In particular, the top periphery of the telescopic sleeve 2 is provided with a first external thread, the first external thread is connected to the first internal thread in a threaded manner, the bottom periphery of the telescopic sleeve 2 is provided with a first boss 201, the bottom of the telescopic sleeve 2 is provided with a second internal thread, the periphery of the telescopic sleeve 2 is provided with a plurality of first grooves 202 along the axial direction, the positioning key 6 is provided with a second through groove 601, the middle part of the spring piece 5 is bent and used for positioning the telescopic sleeve 2, one end of the spring piece 5 is abutted into the first grooves 202, and the other end is abutted into the second through groove 601.
In particular, the inner wall of the top of the sleeve 3 is provided with a second boss 302, the joint of the telescopic sleeve 2 and the sleeve 3 is provided with a first shear pin 11, and the bottom of the sleeve 3 is provided with a third internal thread.
In particular, the third external thread is threaded on the top of the inner tube 4 and is connected to the third internal thread, and the fourth external thread is arranged on the bottom of the inner tube 4.
In particular, the top periphery of the balance valve core 7 is provided with a second external thread, the second external thread is connected to the second internal thread, the bottom periphery of the balance valve core 7 is provided with a second groove 701 and a third groove 702, and an O-shaped sealing ring 14 is respectively arranged in the second groove 701 and the third groove 702.
In particular, the balance valve seat 8 is provided with a balance hole 801, the top of the balance valve seat 8 is provided with a fourth internal thread, the fourth internal thread is connected to a fourth external thread, the joint of the balance valve seat 8 and the inner pipe 4 is provided with a V-shaped sealing ring 13 and a second O-shaped sealing ring 15, the bottom of the balance valve seat 8 is provided with a fifth external thread, the plug 10 is provided with a fifth internal thread, the fifth internal thread is connected to the fifth external thread, and the joint of the balance valve seat 8 and the plug 10 is provided with a third O-shaped sealing ring 16.
The utility model works as follows: in the opened state of the utility model, the table top of the first boss 201 and the table top of the second boss 202 are mutually abutted, then the utility model is put down to the working cylinder to be seated by using a steel wire tool, because the utility model and the sealing surface of the working cylinder have interference, when the utility model is in necking down to the working cylinder, the steel wire tool string is jarred downwards, the first shear pin 11 is sheared off, so that the telescopic sleeve 2 overcomes the limit of the spring piece 5 and the positioning key 6 and moves downwards, thereby driving the balance valve core 7 and the slips 9 to move downwards, and the balance valve core 7 is not retracted under the elastic force of the spring piece 5 and the positioning key 6 and the clamping connection of the bottom of the slips 9 and the inner wall of the balance valve seat 8, at the moment, the balance hole 801 is positioned between the second groove 701 and the third groove 702 under the sealing action of the first O-shaped sealing ring 14 placed in the second groove 701 and the third groove 702, the utility model is fished upwards by using the salvaging tool when the salvaging head 1 is needed in the closed state, the utility model is fished upwards under the action of pulling force of pulling the pulling force, the balance hole is up and down, the balance valve core 7 is salvaged safely.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (7)
1. The novel X/R type balance valve blanking plug is characterized by comprising an outer fishing head (1), a telescopic sleeve (2), a sleeve (3), an inner tube (4), a spring piece (5), a positioning key (6), a balance valve core (7), a balance valve seat (8), slips (9), a plug (10), a first shear pin (11), a second shear pin (12), a V-shaped sealing ring (13), a first O-shaped sealing ring (14), a second O-shaped sealing ring (15) and a third O-shaped sealing ring (16); salvage head (1) bottom fixed connection is to telescopic tube (2) top, telescopic tube (2) peripheral butt sleeve (3) inner wall, telescopic tube (2) bottom fixed connection is to balanced case (7) top, balanced case (7) bottom is through second shear pin (12) fixed connection slips (9), sleeve (3) bottom fixed connection is to inner tube (4) top, inner tube (4) bottom fixed connection is to balanced disk seat (8) top, balanced disk seat (8) bottom fixed connection end cap (10), be equipped with a plurality of first logical groove (301) on sleeve (3), locating key (6) are located first logical groove (301), spring leaf (5) one end butt is to telescopic tube (2) periphery, and the other end butt is on locating key (6), balanced case (7) and slips (9) are located telescopic tube (2), sleeve (3), inner tube (4) and the inner chamber that balanced disk seat (8) constitute.
2. A new balanced valve blanking plug of the X/R type according to claim 1, characterized in that the outer periphery of the fishing head (1) is provided with a fishing neck (101), and the bottom of the fishing head (1) is provided with a first internal thread.
3. The novel X/R type balance valve blanking plug of claim 2, wherein a first external thread is arranged on the top periphery of the telescopic sleeve (2), the first external thread is connected to the first internal thread in a threaded manner, a first boss (201) is arranged on the bottom periphery of the telescopic sleeve (2), a second internal thread is arranged on the bottom of the telescopic sleeve (2), a plurality of first grooves (202) are axially arranged on the periphery of the telescopic sleeve (2), a second through groove (601) is formed in the positioning key (6), the middle part of the spring piece (5) is bent and used for positioning the telescopic sleeve (2), one end of the spring piece (5) is abutted into the first grooves (202), and the other end of the spring piece is abutted into the second through groove (601).
4. The novel X/R type balance valve blanking plug of claim 1, wherein the inner wall of the top of the sleeve (3) is provided with a second boss (302), a first shear pin (11) is arranged at the joint of the telescopic sleeve (2) and the sleeve (3), and a third internal thread is arranged at the bottom of the sleeve (3).
5. A new balanced valve blanking plug of the X/R type according to claim 4, characterized in that the top of the inner tube (4) is third external thread, which is screwed onto the third internal thread, and the bottom of the inner tube (4) is provided with fourth external thread.
6. A new X/R balance valve plug according to claim 3, wherein the top periphery of the balance valve core (7) is provided with a second external thread, the second external thread is connected to the second internal thread, the bottom periphery of the balance valve core (7) is provided with a second groove (701) and a third groove (702), and a first O-ring (14) is placed in each of the second groove (701) and the third groove (702).
7. The novel X/R type balance valve plug according to claim 5, wherein the balance valve seat (8) is provided with a balance hole (801), the top of the balance valve seat (8) is provided with a fourth internal thread, the fourth internal thread is connected to the fourth external thread, the connection part of the balance valve seat (8) and the inner pipe (4) is provided with a V-shaped sealing ring (13) and a second O-shaped sealing ring (15), the bottom of the balance valve seat (8) is provided with a fifth external thread, the plug (10) is provided with a fifth internal thread, the fifth internal thread is connected to the fifth external thread, and the connection part of the balance valve seat (8) and the plug (10) is provided with a third O-shaped sealing ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323285108.3U CN221346864U (en) | 2023-12-04 | 2023-12-04 | Novel X/R type balance valve blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323285108.3U CN221346864U (en) | 2023-12-04 | 2023-12-04 | Novel X/R type balance valve blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221346864U true CN221346864U (en) | 2024-07-16 |
Family
ID=91832746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323285108.3U Active CN221346864U (en) | 2023-12-04 | 2023-12-04 | Novel X/R type balance valve blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221346864U (en) |
-
2023
- 2023-12-04 CN CN202323285108.3U patent/CN221346864U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |