CN211448597U - Oil well sealing protection device - Google Patents
Oil well sealing protection device Download PDFInfo
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- CN211448597U CN211448597U CN202020130731.9U CN202020130731U CN211448597U CN 211448597 U CN211448597 U CN 211448597U CN 202020130731 U CN202020130731 U CN 202020130731U CN 211448597 U CN211448597 U CN 211448597U
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Abstract
A kind of oil well seals the protective device, relate to the technical field of petroleum machinery, set up the quill on the sucker rod, set up sealed cavity and ball head body on the quill; the sealing cavity is an upper sealing cavity and a lower sealing cavity; the lower part of the ball head body is a drum-shaped body or a partial sphere, and the upper part of the ball head body is connected with a cylindrical cavity; the upper sealing cavity is internally provided with a wear-resistant sealing material, and the wear-resistant sealing material is provided with a sealing material pressing sleeve and a sealing cavity pressing cover; the gland cover of the sealing cavity is buckled and fixed on the upper sealing cavity; the lower sealed cavity body cover is buckled on a cylindrical cavity of the fixed ball head body, a fixed rod anti-deflection protective pipe sleeve, a plugging rubber sleeve and a plugging pressing sleeve are arranged in the cylindrical cavity body, and the plugging pressing sleeve is used for pressing a separation plate of the sealed cavity body; the ball head body is seated in the upper ball bowl seat and the lower ball bowl seat which are arranged in the base; the bulb chamber pressure cover is buckled and fixed on the base. The utility model has the advantages that: can conveniently carry out vertical and eccentric adjustment, ensure that equipment avoids the oil leak, long service life.
Description
Technical Field
The utility model relates to a petroleum machinery technical field, further a petroleum well oil pumping auxiliary machinery, especially a closed protection device who is used for the oil well to pump oil.
Background
Among the prior art, oil field rod-pumped well is at the in-process of oil recovery, because the oil pressure of underground oil reservoir changes always, in order to prevent the leakage of crude oil in the oil field, need install well head closing means on the sucker rod, traditional well head closing means, the control range of sucker rod is little, the difficult adjustment of eccentricity, lead to mechanical wear to accelerate, the life of sealing member has been shortened, the condition of sealing member needs often to be examined to the inspection personnel, waste time and energy, and if the sealing member wearing and tearing are serious, cause the leakage of crude oil, both can influence production, the polluted environment again, energy-concerving and environment-protective inadequately.
To solve this problem, a patent entitled "sucker rod for oil pumping unit" (ZL 201620160436.1) proposes to provide a sleeve on the sucker rod, which makes the technical progress. A patent entitled "a new wellhead closure" (ZL 201620029921.5) proposed a casing seal with new advances; however, the eccentric moving body is adjusted to be a cylinder, so when inclination and eccentricity occur, the adjustment is affected, and if the sucker rod is left to run, oil leakage is still caused due to abrasion, and the service life of equipment is affected.
Therefore, it is necessary to develop a new well shut-off protection device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil well seals protection device, it can conveniently carry out perpendicular eccentric adjustment to extension equipment life effectively reduces the oil leak.
The utility model aims at realizing through the following scheme:
the utility model provides an oil well seals protection device, is provided with the sleeve pipe on the sucker rod, and the sleeve pipe is fixed in on the sucker rod, its characterized in that: the sleeve is provided with a sealing cavity and a ball head body; the sealing cavity is cylindrical, and the middle part of the sealing cavity is divided into an upper part and a lower part by a partition plate, namely the upper sealing cavity and the lower sealing cavity; the lower part of the ball head body is a drum-shaped body or a partial sphere, and the upper part of the ball head body is a cylindrical cavity with an upward opening; the wear-resistant sealing material and the sealing material pressing sleeve are arranged in the upper sealing cavity from bottom to top, the sealing material pressing sleeve is pressed by the sealing cavity gland, and the sealing cavity gland cover is fastened and fixed on the upper sealing cavity; the lower sealed cavity body cover is fixed on the cylindrical cavity body of the ball head body in a buckled manner, a fixed rod anti-deflection protective pipe sleeve, a plugging rubber sleeve and a plugging pressing sleeve are sequentially arranged in the cylindrical cavity body from bottom to top, and a partition plate of the sealed cavity body presses the plugging pressing sleeve; the upper spherical bowl seat is arranged on the base, the upper spherical bowl seat is sealed and covered on the top surface of the ball head chamber pressure cover, and the lower part of the ball head chamber pressure cover is fixed with the base; an opening is arranged in the middle of the top surface of the ball head chamber gland, and the diameter of the opening is larger than the outer diameter of the cylindrical chamber.
Further:
the middle part of the ball head body is provided with a groove, and the groove is positioned at the same height position of the top surface of the ball head chamber gland; the height of the groove is larger than the thickness of the top surface of the ball head chamber pressure cover.
The inner diameter of the gland of the sealing cavity is matched with the outer diameter of the upper sealing cavity, and the inner side wall of the gland of the sealing cavity is provided with threads which are meshed and fixed with the threads on the outer side wall of the upper sealing cavity.
The inner diameter of the lower seal cavity is matched with the outer diameter of the cylindrical cavity of the ball head body, and the inner side wall of the lower seal cavity is provided with threads which are meshed and fixed with the threads on the outer side wall of the cylindrical cavity.
The lower part of the ball chamber pressure cover is fixed with the base, the upward extension of the edge of the base is indicated to form a U shape with an upward opening, and the ball chamber pressure cover is fixed with the base through threads, namely, the threads arranged on the inner side of the ball chamber pressure cover are meshed and fixed with the threads arranged on the outer side of the upward extension part of the base.
The lower part of the ball head chamber pressure cover is fixed with the base, after one part or all of the edge of the ball head chamber pressure cover extends horizontally, the extending plane of the ball head chamber pressure cover is fixed with the base through screws.
The lower part of the ball head chamber pressure cover is fixed with the base, and the lower part of the ball head chamber pressure cover is fixed with the base through threads.
The lower part of the ball head chamber pressing cover is fixed with the base through threads, and the threads on the inner side of the lower end part of the ball head chamber pressing cover are meshed and fixed with the threads on the outer side of the outer edge of the base.
The bottom of the lower spherical bowl seat matched with the partial sphere is a plane, and the bowl body matched with the partial sphere is arranged on the upper surface of the lower spherical bowl seat.
An annular platform is arranged at the joint of the partial sphere and the cylindrical cavity.
The utility model has the advantages that: because the ball head body and upper and lower ball bowl seat can move about by oneself, therefore the utility model discloses have good self-modulation vertical and self-modulation eccentric function, can conveniently adjust during the installation, make the sucker rod keep perpendicular and concentricity as far as possible to ensure that equipment avoids the oil leak, long service life. Meanwhile, the labor workload of workers can be effectively reduced.
In order to make the technical field person understand the utility model scheme better, make the above-mentioned purpose, characteristic and advantage of the utility model can be understood more obviously, it is right to combine the further detailed description of the utility model of attached drawings and embodiment below.
Drawings
Fig. 1 is the structure schematic diagram of the utility model, fig. 2 is a second bulb room gland and a base structure schematic diagram, fig. 3 is a third bulb room gland and a base structure schematic diagram, and fig. 4 is another structure schematic diagram of the bulb body.
In the figure: the sucker rod sealing structure comprises a sucker rod 1, a sleeve buckle 2, a sleeve 3, a sealing cavity gland 4, a sealing material pressing sleeve 5, a sealing cavity 6, a wear-resistant sealing material 7, a partition plate 8, a sealing pressing sleeve 9, a sealing rubber sleeve 10, a fixed rod anti-deflection protection pipe sleeve 11, a ball head body 12, a ball head chamber pressure cover 13, an upper ball bowl seat 14, a lower ball bowl seat 15, a base 16, a drum-shaped body 17, a ball head chamber pressure cover opening 18, a groove 19, a cylindrical cavity 20, a lower sealing cavity 21, an upper sealing cavity 22, threads 23, screws 24, a partial spherical body 25 and an annular platform 26.
Detailed Description
As shown in figure 1, the oil well sealing protection device is characterized in that a sleeve 3 is arranged on a sucker rod 1 (the inner diameter of the sleeve 3 is matched with the outer diameter of the sucker rod 1), a sleeve buckle 2 is arranged at the upper end of the sleeve 3, and the sleeve buckle 2 is used for fixing the sleeve 3 and the sucker rod 1.
The sleeve 3 is provided with a sealed cavity 6 and a ball head body 12, the sealed cavity 6 is cylindrical, and the middle part of the sealed cavity 6 is divided into an upper part and a lower part by a partition plate 8, namely an upper sealed cavity 22 and a lower sealed cavity 21; the diameter of the upper sealed cavity 22 may be greater than, equal to, or smaller than the lower sealed cavity 21, and the diameter of the upper sealed cavity 22 is smaller than the lower sealed cavity 21 in this embodiment; the lower part of the ball head body 12 is a drum-shaped body 18 (namely, the top and the bottom of the sphere are both formed by one less ball segment); the upper portion of the ball body 12 is a cylindrical chamber 20 with an upward opening.
The upper seal cavity 22 is internally provided with a wear-resistant seal material 7 and a seal material pressing sleeve 5 from bottom to top, the seal material pressing sleeve 5 is provided with a seal chamber gland 4, the inner diameter of the seal chamber gland 4 is matched with the outer diameter of the upper seal cavity 22, and the inner side wall of the seal chamber gland 4 is provided with threads which are meshed and fixed with the threads on the outer side wall of the upper seal cavity 22; the lower sealed cavity 21 is buckled on the cylindrical cavity 20 of the ball head body 12, the inner diameter of the lower sealed cavity 21 is matched with the outer diameter of the cylindrical cavity 20 of the ball head body 12, and the inner side wall of the lower sealed cavity 21 is provided with threads which are meshed and fixed with the threads on the outer side wall of the cylindrical cavity 20; a rod fixing anti-deviation protection pipe sleeve 11, a plugging rubber sleeve 10 and a plugging pressing sleeve 9 are sequentially arranged in the cylindrical cavity 20 from bottom to top, and the plugging pressing sleeve 9 is limited by a partition plate of the lower sealed cavity 21 from top; the rod-fixing anti-deviation protective pipe sleeve 11 plays a role in stabilizing the sleeve 3 so as to achieve good concentricity, thereby reducing the abrasion of the sleeve 3 and prolonging the service life of the sleeve.
The wear-resistant sealing material 7 generates the functions of compressing and tightening the sleeve 3 under the downward pressing action of the sealing chamber gland 4 and the sealing material pressing sleeve 5, thereby achieving good sealing effect. The plugging rubber sleeve 10 generates the effect of compressing and tightening the sleeve 3 under the downward pressing effect of the plugging pressing sleeve 9 and the isolation plate 8, thereby achieving good sealing effect.
The ball head body 12 is seated in the upper ball bowl seat 14 and the lower ball bowl seat 15, the upper ball bowl seat 14 is above the lower ball bowl seat 15, and the inner surface of the upper ball bowl seat 14 and the inner surface of the lower ball bowl seat 15 are parts of a spherical body with the inner diameter matched with the spherical diameter of the ball head body 12; the bottom of the lower ball bowl seat 15 is a plane, is arranged on the base 16 and can move on the plane of the base 16; because the ball head body 12 is arranged between the upper ball bowl seat 14 and the lower ball bowl seat 15, the upper ball bowl seat 14 and the lower ball bowl seat 15 are not fixed, so that the lower ball bowl seat 15 can freely move on the base 16 within a certain range, thereby achieving the effects of automatic deviation adjustment and inclination adjustment.
The ball head chamber gland 13 is a U-shaped cavity with a downward opening and a plane top surface, and the middle part of the top surface of the ball head chamber gland 13 is provided with a ball head chamber gland opening 18 for penetrating through a cylindrical chamber 20 during installation; the base 16 is fixed on a well head, and threads are arranged in the inner side edge of the lower end of the opening of the ball chamber pressure cover 13 and are meshed and fixed with the threads arranged on the outer edge of the upper base 16.
A groove 19 is arranged in the middle of the ball head body 12, and the position of the groove 19 is at the same height position of the top surface of the ball head chamber gland; the height of the groove 19 is greater than the thickness of the top surface of the ball chamber cover 13, so that when the ball body 12 swings and the groove 19 swings therewith, the groove 19 bites into the top surface of the ball chamber cover 13. Accordingly, the provision of the groove 19 helps to increase the amplitude of the wobbling of the ball head body 12.
In the utility model, the sleeve 3, the sealing cavity gland 4, the sealing material gland 5, the sealing cavity 6, the plugging gland 9, the ball head body 12 (including the drum-shaped body 17 and the cylindrical cavity 20), the ball head chamber gland 13, the upper ball bowl seat 14, the lower ball bowl seat 15 and the base 16 are made of steel materials; the wear-resistant sealing material 7 is formed by mixing high-temperature-resistant rubber and fiber, the plugging rubber sleeve 10 is formed by oil-resistant rubber, the rod-fixing anti-deviation protection pipe sleeve 11 is formed by pressing high-strength, high-temperature-resistant and wear-resistant materials to form a cylinder with the same inner diameter as the cylindrical cavity 20, and a hole is formed in the middle of the cylinder and has the diameter of the sleeve 3; the rod-fixing anti-deviation protective pipe sleeve 11 can also be made of copper.
When in use, the following operations are carried out in sequence: a, fixing a sleeve 3 of the utility model on a sucker rod 1 through a sleeve buckle 2; b, fixing a base 16 on a wellhead, placing a lower ball bowl seat 15 on the base 16, placing a ball head body 12 on the lower ball bowl seat 15, placing an upper ball bowl seat 14 on the ball head body 12, covering a ball head chamber gland 13 with the ball head body 12, the lower ball bowl seat 15 and the upper ball bowl seat 14, and fixing the ball head chamber gland with the base 16; c, placing a fixing rod anti-deviation protection pipe sleeve 11 into the cylindrical cavity 20, plugging the rubber sleeve 10, and then pressing the pipe sleeve by using the plugging pressing sleeve 9; the upper part of the cylindrical cavity 20 is buckled with a seal cavity 6, and an upper seal cavity 22 of the seal cavity 6 is buckled outside the cylindrical cavity 20; d, placing the wear-resistant sealing material 7 into the lower sealing cavity 21, pressing the wear-resistant sealing material by using a sealing material pressing sleeve 5, and sealing the wear-resistant sealing material by using a sealing cavity gland 4; after the adjustment, the operation can be carried out.
As shown in fig. 2, the lower part of the ball chamber gland 13 is fixed with the base 16, and the following structure is adopted: after the edge of the base 16 extends upwards, the base is formed into a U shape with an upward opening, and the ball chamber pressure cover 13 and the base 16 are fixed through threads 23, namely, the threads arranged on the inner side of the ball chamber pressure cover 13 are engaged and fixed with the threads arranged on the outer side of the upward extending part of the base.
As shown in fig. 3, the lower part of the ball chamber gland 13 is fixed with the base 16, and the following structure is adopted: after a part or all of the edge of the ball chamber cover 13 extends horizontally, the extension plane of the ball chamber cover 13 and the base 16 are fixed by screws 24.
As shown in fig. 4, the ball body 12 may also be a part of a sphere, i.e. a partial sphere 25, with one less segment at the top and the lower part being a sphere; fig. 4 also differs from fig. 1 in that the recess 19 is eliminated and an annular platform 26 (or not) remains where part of the spherical body 25 joins the cylindrical chamber 20; in this case, the lower portion of the lower bowl 15 is a flat surface, and the upper portion is a bowl-shaped body fitted with the above-mentioned semi-spherical body.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an oil well seals protection device, is provided with the sleeve pipe on the sucker rod, and the sleeve pipe is fixed in on the sucker rod, its characterized in that: the sleeve is provided with a sealing cavity and a ball head body; the sealing cavity is cylindrical, and the middle part of the sealing cavity is divided into an upper part and a lower part by a partition plate, namely the upper sealing cavity and the lower sealing cavity; the lower part of the ball head body is a drum-shaped body or a partial sphere, and the upper part of the ball head body is a cylindrical cavity with an upward opening; the wear-resistant sealing material and the sealing material pressing sleeve are arranged in the upper sealing cavity from bottom to top, the sealing material pressing sleeve is pressed by the sealing cavity gland, and the sealing cavity gland cover is fastened and fixed on the upper sealing cavity; the lower sealed cavity body cover is fixed on the cylindrical cavity body of the ball head body in a buckled manner, a fixed rod anti-deflection protective pipe sleeve, a plugging rubber sleeve and a plugging pressing sleeve are sequentially arranged in the cylindrical cavity body from bottom to top, and a partition plate of the sealed cavity body presses the plugging pressing sleeve; the upper spherical bowl seat is arranged on the base, the upper spherical bowl seat is sealed and covered on the top surface of the ball head chamber pressure cover, and the lower part of the ball head chamber pressure cover is fixed with the base; an opening is arranged in the middle of the top surface of the ball head chamber gland, and the diameter of the opening is larger than the outer diameter of the cylindrical chamber.
2. A well shut-off protection device as claimed in claim 1, wherein: the middle part of the ball head body is provided with a groove, and the groove is positioned at the same height position of the top surface of the ball head chamber gland; the height of the groove is larger than the thickness of the top surface of the ball head chamber pressure cover.
3. A well shut-off protection device as claimed in claim 1, wherein: the inner diameter of the gland of the sealing cavity is matched with the outer diameter of the upper sealing cavity, and the inner side wall of the gland of the sealing cavity is provided with threads which are meshed and fixed with the threads on the outer side wall of the upper sealing cavity.
4. A well shut-off protection device as claimed in claim 1, wherein: the inner diameter of the lower seal cavity is matched with the outer diameter of the cylindrical cavity of the ball head body, and the inner side wall of the lower seal cavity is provided with threads which are meshed and fixed with the threads on the outer side wall of the cylindrical cavity.
5. A well shut-off protection device as claimed in claim 1, wherein: the lower part of the ball chamber pressure cover is fixed with the base, the upward extension of the edge of the base is indicated to form a U shape with an upward opening, and the ball chamber pressure cover is fixed with the base through threads, namely, the threads arranged on the inner side of the ball chamber pressure cover are meshed and fixed with the threads arranged on the outer side of the upward extension part of the base.
6. A well shut-off protection device as claimed in claim 1, wherein: the lower part of the ball head chamber pressure cover is fixed with the base, after one part or all of the edge of the ball head chamber pressure cover extends horizontally, the extending plane of the ball head chamber pressure cover is fixed with the base through screws.
7. A well shut-off protection device as claimed in claim 1, wherein: the lower part of the ball head chamber pressure cover is fixed with the base, and the lower part of the ball head chamber pressure cover is fixed with the base through threads.
8. A well block protection device as claimed in claim 7, wherein: the lower part of the ball head chamber pressing cover is fixed with the base through threads, and the threads on the inner side of the lower end part of the ball head chamber pressing cover are meshed and fixed with the threads on the outer side of the outer edge of the base.
9. A well shut-off protection device as claimed in claim 1, wherein: the bottom of the lower spherical bowl seat matched with the partial sphere is a plane, and the bowl body matched with the partial sphere is arranged on the upper surface of the lower spherical bowl seat.
10. A well block protection device according to claim 1 or 9, characterized in that: an annular platform is arranged at the joint of the partial sphere and the cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020130731.9U CN211448597U (en) | 2020-01-20 | 2020-01-20 | Oil well sealing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020130731.9U CN211448597U (en) | 2020-01-20 | 2020-01-20 | Oil well sealing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448597U true CN211448597U (en) | 2020-09-08 |
Family
ID=72319204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020130731.9U Active CN211448597U (en) | 2020-01-20 | 2020-01-20 | Oil well sealing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211448597U (en) |
-
2020
- 2020-01-20 CN CN202020130731.9U patent/CN211448597U/en active Active
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