CN213016288U - Well cementation rubber plug for drilling and production in oil field - Google Patents
Well cementation rubber plug for drilling and production in oil field Download PDFInfo
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- CN213016288U CN213016288U CN202022161719.7U CN202022161719U CN213016288U CN 213016288 U CN213016288 U CN 213016288U CN 202022161719 U CN202022161719 U CN 202022161719U CN 213016288 U CN213016288 U CN 213016288U
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- well cementation
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Abstract
The utility model discloses a well cementation plug is adopted to oil field brill, including the plug body, the plug body is inside to be left built-in groove, and the inner wall in built-in groove is fixed with the core, the bottom outer wall of plug body is fixed with the end, and the top outer wall of plug body is fixed with the top leather cup, the outer wall of plug body is fixed with the bowl form reinforcing plate that the equidistance distributes, and the inside of bowl form reinforcing plate is fixed with the lateral part leather cup, the recess that the equidistance is cyclic annular distribution is seted up to bowl form reinforcing plate top edge outer wall, and the inside of recess is fixed with flexible part, the outer wall of bowl form reinforcing plate is fixed with annular seal cover, and annular seal cover keeps away from the outer wall middle part of plug body and has seted up annular opening. The utility model discloses set up the bowl form reinforcing plate and can consolidate the lateral part leather cup, and bowl form reinforcing plate flank edge has set up flexible part and can drive two semi-ring seal pieces on the cyclic annular seal cover and stretch out and draw back to this sealing performance who strengthens the device.
Description
Technical Field
The utility model relates to a well cementation plug technical field especially relates to an oil field is bored and is adopted well cementation plug.
Background
The cementing plug has the purposes of isolating cement paste, cleaning the casing wall, preventing cement paste pollution and the like, can accurately indicate the cement paste replacement position and the sealing performance of the casing after the plug is pressed against the floating hoop, the upper plug and the lower plug are generally used in a set, the upper plug separates the upper cement paste from the slurry to prevent the cement paste from being polluted, and simultaneously replaces the cement paste to an annulus, so that the sealing performance of the existing cementing plug is poor, and the existing cementing plug is easy to rotate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a cementing rubber plug for drilling and production in an oil field.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a well cementation rubber plug for drilling and production in oil fields comprises a rubber plug body, wherein a built-in groove is reserved inside the rubber plug body, a core body is fixed on the inner wall of the built-in groove, a bottom end head is fixed on the outer wall of the bottom of the rubber plug body, a top leather cup is fixed on the outer wall of the top of the rubber plug body, bowl-shaped reinforcing plates are fixed on the outer wall of the rubber plug body at equal intervals, side leather cups are fixed inside the bowl-shaped reinforcing plates, grooves are formed in the outer wall of the edge of the top of each bowl-shaped reinforcing plate at equal intervals in an annular distribution mode, telescopic parts are fixed inside the grooves, an annular sealing cover is fixed on the outer wall of each bowl-shaped reinforcing plate, an annular through hole is formed in the middle of the outer wall, away from the rubber plug body, of each annular through hole is provided with two semi-annular sealing blocks which are symmetrically distributed, the semi-annular sealing blocks are fixedly connected with the, and the bottom outer wall of the bottom end head is provided with a guide groove.
Preferably, flexible part includes the fixed box, and the fixed box is fixed in the inside of recess, one side inner wall of fixed box is fixed with the spring, and the spring one end of keeping away from the plug body is fixed with the fly leaf, the round mouth has been seted up to one side outer wall that the spring was kept away from to the fixed box, and the inner wall sliding connection of round mouth has the connecting rod, connecting rod one end and semi-ring seal piece fixed connection, and the connecting rod other end and fly leaf fixed connection.
Preferably, the rotation-preventing part comprises a fixed cylinder, the fixed cylinder is fixed at the bottom of the outer wall of the rubber plug body, the inner wall of the fixed cylinder is provided with a piston, a fixed rod is fixed on the outer wall of one side of the piston far away from the rubber plug body, one end of the fixed rod far away from the rubber plug body extends to the fixed cylinder and is externally fixed with a wear-resisting block, the fixed cylinder is close to the inner wall of the bottom of the rubber plug body and is provided with an inlet, and the inlet is clamped to a cover plate.
Preferably, the semi-annular sealing block forms sliding fit with the inner wall of the annular through opening, and the connecting rod is located in the annular sealing cover.
Preferably, the cover plate is positioned in the fixed cylinder, and the cover plate is positioned between the piston and the inner wall of one side of the fixed cylinder, which is close to the rubber plug body.
Preferably, reinforcing grooves are formed in the inner walls of the two sides of the built-in groove and are distributed equidistantly, and reinforcing blocks are fixed on the inner walls of the reinforcing grooves.
Preferably, the reinforcing block is fixedly connected with the core body.
The utility model has the advantages that:
1. the cementing rubber plug for drilling and production in the oil field is provided with a bowl-shaped reinforcing plate which can reinforce a side leather cup, and the edge of the side wing of the bowl-shaped reinforcing plate is provided with a telescopic component which can drive two semi-annular sealing blocks on an annular sealing cover to be telescopic so as to enhance the sealing performance of the device;
2. this well cementation plug is adopted to oil field brill, plug body outer wall bottom has set up the part of preventing changeing, and the apron on the part of preventing changeing can be opened under the impact of cement, then cement gets into can promote piston, dead lever and wear-resisting piece displacement in the fixed jar, lets wear-resisting piece support the wall of a well, and the bottom head is provided with the guiding groove and can saves cement, to sum up the device prevent changeing the performance.
Drawings
FIG. 1 is a schematic view of a vertical cross-section structure of a cementing plug for oil field drilling and production provided by the utility model;
FIG. 2 is an enlarged view of A in FIG. 1;
fig. 3 is the utility model provides a main view structure sketch map of well cementation plug is adopted to oil field brill.
In the figure: the rubber plug comprises a rubber plug body 1, a core body 2, a bottom end head 3, a top leather cup 4, a side leather cup 5, a bowl-shaped reinforcing plate 6, an annular sealing cover 7, a fixed box 8, a spring 9, a movable plate 10, a connecting rod 11, a semi-annular sealing block 12, a fixed cylinder 13, a piston 14, a fixed rod 15, a wear-resistant block 16, a cover plate 17 and a guide groove 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
Referring to fig. 1-3, a well cementation rubber plug for an oil field drill comprises a rubber plug body 1, wherein a built-in groove is reserved inside the rubber plug body 1, a core body 2 is fixed on the inner wall of the built-in groove, a bottom end head 3 is fixed on the outer wall of the bottom of the rubber plug body 1, a top leather cup 4 is fixed on the outer wall of the top of the rubber plug body 1, bowl-shaped reinforcing plates 6 are fixed on the outer wall of the rubber plug body 1 and distributed equidistantly, side leather cups 5 are fixed inside the bowl-shaped reinforcing plates 6, grooves are formed on the outer wall of the top edge of the bowl-shaped reinforcing plates 6 and distributed equidistantly in an annular shape, a telescopic part is fixed inside the grooves, an annular sealing cover 7 is fixed on the outer wall of the bowl-shaped reinforcing plates 6, an annular through hole is formed in the middle part of the outer wall of the annular sealing cover 7, which is far away from the rubber plug body 1, four anti-rotation parts which are distributed annularly are fixed at the bottom of the outer wall of the rubber plug body 1, a guide groove 18 is formed in the outer wall of the bottom end head 3, the telescopic part comprises a fixed box 8, the fixed box 8 is fixed in the groove, a spring 9 is fixed on the inner wall of one side of the fixed box 8, a movable plate 10 is fixed at one end of the spring 9 far away from the rubber plug body 1, a round opening is formed in the outer wall of one side of the fixed box 8 far away from the spring 9, a connecting rod 11 is connected to the inner wall of the round opening in a sliding manner, one end of the connecting rod 11 is fixedly connected with a semi-annular sealing block 12, the other end of the connecting rod 11 is fixedly connected with the movable plate 10, the anti-rotation parts comprise a fixed cylinder 13, the fixed cylinder 13 is fixed at the bottom of the outer wall of the rubber plug body 1, a piston 14 is arranged on the inner wall of the fixed cylinder 13, a fixed, fixed cylinder 13 has been close to the bottom inner wall of plug body 1 and has been seted up the import, and the inner wall joint of import has apron 17, the inner wall formation sliding fit of semi-ring seal piece 12 and annular opening, and connecting rod 11 is located annular seal cover 7, apron 17 is located the inside of fixed cylinder 13, and apron 17 is located between piston 14 and one side inner wall that fixed cylinder 13 is close to plug body 1, the reinforcing groove that the equidistance distributed is seted up to the both sides inner wall of inner groovy, and the inner wall in reinforcing groove is fixed with the reinforcement piece, reinforcement piece and 2 fixed connection of core.
The working principle is as follows: can consolidate lateral part leather cup 5 through bowl form reinforcing plate 6, then the spring 9 in the 6 flank edge of bowl form reinforcing plate a plurality of flexible parts, fly leaf 10 and connecting rod 11 can drive two semi-ring seal blocks 12 on the cyclic annular sealed cowling 7 and stretch out and draw back, let semi-ring seal block 12 adaptation well head internal diameter, strengthen the device's sealing performance with this, 1 outer wall bottom of plug body has set up prevents changeing the part, the apron 17 on preventing changeing the part can be opened under the impact of cement, then cement gets into and can promote piston 14 in the fixed jar 13, dead lever 15 and wear-resisting piece 16 displacement, let wear-resisting piece 16 support the wall of a well, and bottom end 3 is provided with guiding groove 18 can save cement, the device prevent changeing the performance.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The well cementation rubber plug for drilling and production in the oil field comprises a rubber plug body (1) and is characterized in that a built-in groove is reserved inside the rubber plug body (1), a core body (2) is fixed on the inner wall of the built-in groove, a bottom end socket (3) is fixed on the outer wall of the bottom of the rubber plug body (1), a top leather cup (4) is fixed on the outer wall of the top of the rubber plug body (1), bowl-shaped reinforcing plates (6) are fixed on the outer wall of the rubber plug body (1) and distributed equidistantly, a side leather cup (5) is fixed inside the bowl-shaped reinforcing plates (6), grooves distributed equidistantly and annularly are formed in the outer wall of the edges of the top of the bowl-shaped reinforcing plates (6), telescopic parts are fixed inside the grooves, an annular sealing cover (7) is fixed on the outer wall of the bowl-shaped reinforcing plates (6), and an annular sealing cover (7) is arranged in the middle of the, the inner wall of annular opening is provided with two symmetrical distribution's semi-ring seal piece (12), and semi-ring seal piece (12) and flexible part fixed connection, the outer wall bottom of plug body (1) is fixed with four and is the cyclic annular rotation-proof parts that distribute, and the bottom outer wall of end (3) has seted up guiding groove (18).
2. The well cementation rubber plug for oil field drilling and production according to claim 1, wherein the telescopic part comprises a fixed box (8), the fixed box (8) is fixed inside the groove, a spring (9) is fixed on an inner wall of one side of the fixed box (8), a movable plate (10) is fixed on one end, away from the rubber plug body (1), of the spring (9), a round opening is formed in an outer wall of one side, away from the spring (9), of the fixed box (8), a connecting rod (11) is connected to the inner wall of the round opening in a sliding mode, one end of the connecting rod (11) is fixedly connected with the semi-annular sealing block (12), and the other end of the connecting rod (11) is fixedly connected with the movable plate (10).
3. The well cementation rubber plug for oil field drilling and production according to claim 1, wherein the rotation preventing component comprises a fixed cylinder (13), the fixed cylinder (13) is fixed at the bottom of the outer wall of the rubber plug body (1), a piston (14) is arranged on the inner wall of the fixed cylinder (13), a fixed rod (15) is fixed on the outer wall of one side of the piston (14) far away from the rubber plug body (1), one end of the fixed rod (15) far away from the rubber plug body (1) extends to the outside of the fixed cylinder (13) and is fixed with a wear-resistant block (16), an inlet is arranged on the inner wall of the bottom of the fixed cylinder (13) close to the rubber plug body (1), and a cover plate (17) is clamped on the inner wall of the.
4. The well cementation rubber plug for oil field drilling and production according to claim 1, characterized in that the semi-annular sealing block (12) forms a sliding fit with the inner wall of the annular through opening, and the connecting rod (11) is located in the annular sealing cover (7).
5. The well cementation rubber plug for oil field drilling and production according to claim 3, wherein the cover plate (17) is located inside the fixed cylinder (13), and the cover plate (17) is located between the piston (14) and the inner wall of one side of the fixed cylinder (13) close to the rubber plug body (1).
6. The well cementation rubber plug for drilling and producing in oil fields as claimed in claim 1, wherein the inner walls of the built-in groove are provided with reinforcing grooves distributed equidistantly, and reinforcing blocks are fixed on the inner walls of the reinforcing grooves.
7. The well cementation rubber plug for oil field drilling and production according to claim 6, wherein the reinforcing block is fixedly connected with the core body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161719.7U CN213016288U (en) | 2020-09-28 | 2020-09-28 | Well cementation rubber plug for drilling and production in oil field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022161719.7U CN213016288U (en) | 2020-09-28 | 2020-09-28 | Well cementation rubber plug for drilling and production in oil field |
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| CN213016288U true CN213016288U (en) | 2021-04-20 |
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| CN202022161719.7U Active CN213016288U (en) | 2020-09-28 | 2020-09-28 | Well cementation rubber plug for drilling and production in oil field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874980A (en) * | 2023-03-08 | 2023-03-31 | 西南石油大学 | Sleeve-proof well cementation rubber plug and assembly method thereof |
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2020
- 2020-09-28 CN CN202022161719.7U patent/CN213016288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874980A (en) * | 2023-03-08 | 2023-03-31 | 西南石油大学 | Sleeve-proof well cementation rubber plug and assembly method thereof |
| CN115874980B (en) * | 2023-03-08 | 2023-05-05 | 西南石油大学 | Anti-sleeve type well cementation rubber plug and assembly method thereof |
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