CN205422612U - Producing well mouth sealing device - Google Patents
Producing well mouth sealing device Download PDFInfo
- Publication number
- CN205422612U CN205422612U CN201620109070.5U CN201620109070U CN205422612U CN 205422612 U CN205422612 U CN 205422612U CN 201620109070 U CN201620109070 U CN 201620109070U CN 205422612 U CN205422612 U CN 205422612U
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- CN
- China
- Prior art keywords
- pressure release
- sucker rod
- sleeve pipe
- release sleeve
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a producing well mouth sealing device, its technical scheme is: the rotator passes through rotary device and rotates the top of installing at the fixed body, the sealing strip is installed at both ends at oil pipe, be equipped with the sucker rod draw -in groove at the both ends of coupling main part, the surface of sucker rod draw -in groove is equipped with the stopper, the sub -unit connection oil pipe sealing device of sucker rod draw -in groove, be provided with the pressure release board at pressure release cover intraduct, be provided with out oil pipe on the wall on the left of the pressure release sheathed tube, the inner circle joint is in the arc recess of outer lane, the clearance department of the arc recess of inner circle lateral wall and the arc recess of outer lane inside wall installs the ball, the beneficial effects of the utility model are that: the utility model discloses a can effectively prevent the appearance of blowout phenomenon, timely pressure release when the blowout to avoid the waste of oil and the pollution of environment, rotary device has solved the sucker rod and has caused the problem that the screw thread is not hard up and thread off because of radial torsion.
Description
Technical field
This utility model relates to a kind of extracting device of oil, particularly to a kind of oil extraction wellhead sealing device.
Background technology
Along with increasingly sharpening of energy demand, oil exploitation has become as an important channel of energy supply.nullIn oil extraction in oil field technology，Sucker rod pumping is still main method，The driving means on ground drives oil well pump to pump in oil pipe pump barrel by sucker rod，Thus crude oil is pumped into ground，Rod collar is widely used part in the sucker rod pumping system of oil field，The connection between sucker rod is realized by it，Rod string is when down-hole normally works，Oil pumper drives on rod string、Lower reciprocating motion，Due to hole deviation，Crude oil resistance、The impact of the factors such as the frictional force of rod string and tube inner wall，Sucker rod will constantly be stretched、Compression、The alternate load that bending and additional torque etc. are complicated，Thus occur sucker rod to loosen with screw threads of coupler and thread off，Sucker rod is made to fall in oil well，Cause down-hole accident，Oil well is forced to stop production，Have a strong impact on the production efficiency in oil field，Add the production cost in oil field.
Summary of the invention
The purpose of this utility model is aiming at the drawbacks described above that prior art exists, it is provided that a kind of oil extraction wellhead sealing device, solves the problem that sucker rod causes screw thread to loosen and thread off because of radial direction torsion.
nullIts technical scheme is: include limited block、Sealing strip、Oil pipe、Box cupling main body、Rotary apparatus、Sucker rod draw-in groove、Tubing seal device，Box cupling main body includes rotary body and fixed body，Rotary body is rotatably installed in the top of fixed body by rotary apparatus，At the two ends of oil pipe, sealing strip is installed，It is provided with sucker rod draw-in groove at the two ends of box cupling main body，The surface of sucker rod draw-in groove is provided with limited block，The bottom connected pipes sealing device of sucker rod draw-in groove，Tubing seal device includes sealing ring、Top connection、Spring、Flowline、Pressure relief plate、Pressure release sleeve pipe、Blowout prevention tooth、Sealing ring、Lower contact，Top connection、Pressure release sleeve pipe and lower contact are socketed on sucker rod the most successively，The upper end of pressure release sleeve pipe is socketed with the lower end of top connection，The upper end of lower contact is socketed with the lower end of pressure release sleeve pipe，Sealing ring it is provided with between top connection and sucker rod，Pressure release inside pipe casing is provided with pressure relief plate，The left side wall of pressure release sleeve pipe is provided with flowline.
Above-mentioned rotary apparatus includes inner ring, outer ring and ball, inner ring is connected in the arc groove of outer ring, the gap location of the arc groove of inner ring lateral wall and the arc groove of medial wall, outer ring is provided with ball, ball is connected in the inner chamber of ball fixture, the upper surface of described inner ring is connected to rotary body, and the lower surface of outer ring is connected to fixed body, and pressure relief plate passes through spring compression on pressure release sleeve pipe, it is provided with sealing ring between pressure relief plate and pressure release sleeve pipe, the inwall of pressure release sleeve pipe is provided with blowout prevention tooth.
The beneficial effects of the utility model are: a kind of appearance that can effectively prevent blowout phenomenon of the present utility model, the timely pressure release when blowout, thus avoid the waste of oil and the pollution of environment, it is able to ensure that personal security simultaneously, rotary apparatus solves the problem that sucker rod causes screw thread to loosen and thread off because of radial direction torsion, this apparatus structure is simple, low cost, decreases the generation of down-hole accident, improves oil field productivity effect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of rotary apparatus；
In upper figure: limited block 1, rotary body 2, sealing strip 3, oil pipe 4, rotary apparatus 5, fixed body 6, sucker rod draw-in groove 7, sealing ring 8, top connection 9, spring 10, flowline 11, pressure relief plate 12, pressure release sleeve pipe 13, blowout prevention tooth 14, sealing ring 15, sucker rod 16, lower contact 17, inner ring 5.1, outer ring 5.2 and ball 5.3, ball fixture 5.4.
Detailed description of the invention
In conjunction with accompanying drawing 1-2, the utility model will be further described:
nullThis utility model includes limited block 1、Sealing strip 3、Oil pipe 4、Box cupling main body、Rotary apparatus 5、Sucker rod draw-in groove 7、Tubing seal device，Box cupling main body include and，Rotary body 2 is rotatably installed in the top of fixed body 6 by rotary apparatus 5，At the two ends of oil pipe 4, sealing strip 3 is installed，It is provided with sucker rod draw-in groove 7 at the two ends of box cupling main body，The surface of sucker rod draw-in groove 7 is provided with limited block 1，The bottom connected pipes sealing device of sucker rod draw-in groove 7，Tubing seal device includes sealing ring 8、Top connection 9、Spring 10、Flowline 11、Pressure relief plate 12、Pressure release sleeve pipe 13、Blowout prevention tooth 14、Sealing ring 15、Lower contact 17，Top connection 9、Pressure release sleeve pipe 13 and lower contact 17 are socketed on sucker rod 16 the most successively，The upper end of pressure release sleeve pipe 13 is socketed with the lower end of top connection 9，The upper end of lower contact 17 is socketed with the lower end of pressure release sleeve pipe 13，Sealing ring 8 it is provided with between top connection 9 and sucker rod 16，It is internally provided with pressure relief plate 12 at pressure release sleeve pipe 13，The left side wall of pressure release sleeve pipe 13 is provided with flowline 11.
Wherein, rotary apparatus 5 includes inner ring 5.1, outer ring 5.2 and ball 5.3, inner ring 5.1 is connected in the arc groove of outer ring 5.2, the gap location of the arc groove of inner ring 5.1 lateral wall and the arc groove of medial wall, outer ring 5.2 is provided with ball 5.3, ball 5.3 is connected in the inner chamber of ball fixture 5.4, the upper surface of described inner ring 5.1 is connected to rotary body 2, the lower surface of outer ring 5.2 is connected to fixed body 6, pressure relief plate 12 is pressed on pressure release sleeve pipe 13 by spring 10, sealing ring 15 it is provided with between pressure relief plate 12 and pressure release sleeve pipe 13, blowout prevention tooth 14 it is provided with on the inwall of pressure release sleeve pipe 13.
When there is blowout phenomenon, oil is by lower contact, gap between pressure release sleeve pipe and polished rod, and back down pressure relief plate and enter in pressure release sleeve pipe, the oil entered in pressure release sleeve pipe is then discharged by flowline, thus prevent the generation of blowout phenomenon, and by the setting of blowout prevention tooth on pressure release internal surface of sleeve pipe, it is possible to effectively reduce the impulsive force of oil；A kind of appearance that can effectively prevent blowout phenomenon of the present utility model, the timely pressure release when blowout, thus avoid the waste of oil and the pollution of environment, it is able to ensure that personal security simultaneously, rotary apparatus solves the problem that sucker rod causes screw thread to loosen and thread off because of radial direction torsion, this apparatus structure is simple, low cost, decreases the generation of down-hole accident, improves oil field productivity effect.
The above, be only preferred embodiment of the present utility model, and this utility model is all revised possibly also with the technical scheme of above-mentioned elaboration or is revised as the technical scheme of equivalent by any those of ordinary skill in the art.Therefore, any simple modification carried out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that this utility model is claimed.
Claims (2)
- null1. an oil extraction wellhead sealing device，It is characterized in that: include limited block (1)、Sealing strip (3)、Oil pipe (4)、Box cupling main body、Rotary apparatus (5)、Sucker rod draw-in groove (7)、Tubing seal device，Box cupling main body includes rotary body (2) and fixed body (6)，Rotary body (2) is rotatably installed in the top of fixed body (6) by rotary apparatus (5)，At the two ends of oil pipe (4), sealing strip (3) is installed，Sucker rod draw-in groove (7) it is provided with at the two ends of box cupling main body，The surface of sucker rod draw-in groove (7) is provided with limited block (1)，The bottom connected pipes sealing device of sucker rod draw-in groove (7)，Tubing seal device includes sealing ring (8)、Top connection (9)、Spring (10)、Flowline (11)、Pressure relief plate (12)、Pressure release sleeve pipe (13)、Blowout prevention tooth (14)、Sealing ring (15)、Lower contact (17)，Top connection (9)、Pressure release sleeve pipe (13) and lower contact (17) are socketed on sucker rod (16) the most successively，The upper end of pressure release sleeve pipe (13) is socketed with the lower end of top connection (9)，The upper end of lower contact (17) is socketed with the lower end of pressure release sleeve pipe (13)，Sealing ring (8) it is provided with between top connection (9) and sucker rod (16)，It is internally provided with pressure relief plate (12) at pressure release sleeve pipe (13)，The left side wall of pressure release sleeve pipe (13) is provided with flowline (11).
- nullA kind of oil extraction wellhead sealing device the most according to claim 1，It is characterized in that: described rotary apparatus (5) includes inner ring (5.1)、Outer ring (5.2) and ball (5.3)，Inner ring (5.1) is connected in the arc groove of outer ring (5.2)，The gap location of the arc groove of inner ring (5.1) lateral wall and the arc groove of outer ring (5.2) medial wall is provided with ball (5.3)，Ball (5.3) is connected in the inner chamber of ball fixture (5.4)，The upper surface of described inner ring (5.1) is connected to rotary body (2)，The lower surface of outer ring (5.2) is connected to fixed body (6)，Pressure relief plate (12) is pressed on pressure release sleeve pipe (13) by spring (10)，Sealing ring (15) it is provided with between pressure relief plate (12) and pressure release sleeve pipe (13)，Blowout prevention tooth (14) it is provided with on the inwall of pressure release sleeve pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109070.5U CN205422612U (en) | 2016-02-03 | 2016-02-03 | Producing well mouth sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109070.5U CN205422612U (en) | 2016-02-03 | 2016-02-03 | Producing well mouth sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422612U true CN205422612U (en) | 2016-08-03 |
Family
ID=56540896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620109070.5U Expired - Fee Related CN205422612U (en) | 2016-02-03 | 2016-02-03 | Producing well mouth sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205422612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117410081A (en) * | 2023-12-05 | 2024-01-16 | 佛山市顺德区均安镇顺和微电机有限公司 | Transformer bushing convenient to install and application method thereof |
-
2016
- 2016-02-03 CN CN201620109070.5U patent/CN205422612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117410081A (en) * | 2023-12-05 | 2024-01-16 | 佛山市顺德区均安镇顺和微电机有限公司 | Transformer bushing convenient to install and application method thereof |
| CN117410081B (en) * | 2023-12-05 | 2024-06-04 | 广西海恒电力科技有限公司 | Transformer bushing convenient to install and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |