CN212958562U - Repeatedly usable's rotation type bleeder - Google Patents
Repeatedly usable's rotation type bleeder Download PDFInfo
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- CN212958562U CN212958562U CN202021430717.7U CN202021430717U CN212958562U CN 212958562 U CN212958562 U CN 212958562U CN 202021430717 U CN202021430717 U CN 202021430717U CN 212958562 U CN212958562 U CN 212958562U
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- sealing
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Abstract
The utility model provides a repeatedly usable's rotation type bleeder is the cylinder, lower clutch (9) is in proper order threaded connection from bottom to top let out oil jacket (8), seal cover (6), uide bushing (5), center tube (2) are from draining oil jacket (8), seal cover (6), the centre bore of uide bushing (5) is inserted, uide bushing (5) are pushed down to direction boss (2-2) on uide bushing (5), be equipped with spring (4) between uide bushing (5) upper portion spacing ring (2-1) and direction boss (2-2), overcoat (3) entangle spring (4), annular boss (3-1) block spacing ring (2-1) in the upper end of overcoat (3) push down center tube (2), the upper end and the top connection (1) threaded connection of center tube (2), and compress tightly overcoat (3). The utility model is suitable for an oil, gas, water well tubular column, operation draining passageway open, close convenient operation, reliable operation, the operation success rate is high, uses repeatedly, avoids environmental pollution, and the operation well workover is convenient, and economic benefits and social are showing.
Description
Technical Field
The utility model relates to an operation instrument technical field in the pit particularly is a repeatedly usable's rotation type bleeder.
Background
At present, in the process of underground operation of an oil field, an oil drain device is generally used for communicating an oil pipe with a casing pipe channel during workover operation, and the oil drain device is also a discharge port for fluid in the oil pipe during the process of lifting a pipe column during pump inspection operation. In order to release the liquid column pressure in the oil pipe, the liquid in the oil pipe is discharged into the well, so that the crude oil is prevented from being brought out of the ground of a well mouth to generate environmental pollution, the load of a workover rig is reduced, the operating condition of the well mouth is improved, and the oil drain device is required to be used for realizing safe and environment-friendly operation construction. The most used drip devices today include anchored, throw-stem shear and pull-up. However, the oil drainage functions, effects, reliability and the like of the three oil drains are not ideal, and various problems exist.
An anchored oil drain, patent No.: 201521089610X is a hydraulic oil drainer, has relatively reliable oil drainage performance, is suitable for the production of the whole well without sealing, but easily causes the problem that the pipe column can not be lifted out for the layered oil production well. Moreover, the structure of the oil drain device is relatively complex, the manufacturing cost is high, and the oil drain device cannot be closed for the second time after oil drainage and cannot be used repeatedly.
A double eccentric throw pole type oil drain device, the patent number: 201520005794.0, comprising: the oil drain device comprises an oil drain device shell, wherein a radial step hole is formed in the middle of the oil drain device shell, and a shearing pin is arranged in the step hole; the oil drain device shell and the shearing pin are sealed with the red copper gasket through a sealing ring, and the outer end of the shearing pin is fixed through a retaining ring; a groove is arranged outside the shearing pin; the upper part of the oil drainer shell is provided with a conical surface hole; the middle part of the oil drainer shell is provided with a central hole, and the lower part of the oil drainer shell is provided with a threaded hole; when in normal mining operation, the double-eccentric-throw-rod type oil drain device is connected between the pump barrel and the fixed valve assembly, and the mining operation is ensured to be carried out smoothly by virtue of a self double-sealing structure; when the pump is detected and the pipe string is lifted, after the piston lifts the oil pipe, the groove part at the end part of the shearing pin is hit by adding a shearing rod to a well mouth, so that the shearing pin is fractured from the groove part, the inside and the outside of the oil pipe are communicated through the pin hole, liquid in the pipe flows out of the well barrel, the aim of smooth oil drainage is fulfilled, and therefore a certain requirement is met for the rod-throwing speed. However, when the oil drain device is put into the well, the oil drain device is easy to open and lose effectiveness due to the viscous resistance of crude oil, so that the oil drain device cannot be normally used in an oil well with high crude oil viscosity; in addition, when the sucker rod is broken, clamped and detached, the oil drainage function of the throwing shear type oil drainage device cannot be realized.
A lift-pull type oil drain, patent No.: 2004201209410, the oil drainage is realized by opening the oil drainage switch by the sucker rod coupling or the hanging and colliding device, the disadvantage is that in the oil well production process, once the sucker rod coupling or the hanging and colliding device touches the oil drainer switch, the oil drainer switch will open the oil drainage midway, and the production is affected.
Above three kinds of bleeder all are disposable device, in case the bleeder is opened in the use, will unable recovery carry out the secondary and use, can only go up oil pipe and install the bleeder once more, have increased work load and economic cost.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art and providing a rotary oil drain device which can be repeatedly used.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model discloses a: the oil leakage device comprises an upper joint, a central pipe, an outer sleeve, a spring, a guide sleeve, a seal ring, an oil leakage sleeve and a lower joint; the method is characterized in that: the utility model provides a repeatedly usable's rotation type bleeder is the cylinder, and the lower clutch is leaking oil jacket, seal cover, the uide bushing from bottom to top threaded connection in proper order, and the center tube inserts from leaking the centre bore of oil jacket, seal cover, uide bushing, and the direction boss on the uide bushing pushes down the uide bushing, is equipped with the spring between the upper portion spacing ring of uide bushing and the direction boss, and the overcoat entangles the spring, and annular boss blocks the spacing ring and pushes down the center tube in the upper end of overcoat, the upper end and the top connection threaded connection of center tube to compress tightly the overcoat.
Preferably, the upper part of the central pipe of the rotary oil drainer capable of being repeatedly used is provided with a limiting ring, the middle part of the central pipe is provided with two symmetrical guide bosses, the circumferential symmetry of the lower part of the central pipe is provided with two inner oil drainage holes, and the guide bosses and the inner oil drainage holes are circumferentially consistent on the central pipe.
Preferably, the outer sleeve of the reusable rotary oil drain device is a hollow circular tube, an inner annular boss is arranged at the upper end of the outer sleeve, and an inner thread connected with the guide sleeve is arranged at the lower end of the outer sleeve.
Preferably, the inner cavity of the guide sleeve of the reusable rotary oil drain device is provided with a track groove, a positioning groove and a straight groove, and the positioning groove is matched with a guide boss on the central pipe for limiting.
Preferably, the sealing sleeve of the reusable rotary oil drainer is internally provided with four sealing rings which are divided into an upper group and a lower group, and the two groups of sealing rings are respectively arranged on the upper part and the lower part of the oil drainage hole in the central pipe to ensure the sealing between the central pipe and the sealing sleeve.
Preferably, the middle of the oil drainage sleeve of the rotary oil drainage device capable of being repeatedly used is symmetrically provided with two outer oil leakage holes, and the circumferential intervals between the outer oil leakage holes and the inner oil leakage holes are 90 degrees.
The utility model has the advantages that: the oil pipe is suitable for oil, gas and water wells, oil drainage is performed by lowering and rotationally lifting the oil pipe during oil drainage in operation, the structure is novel, the operation is simple and convenient, the work is reliable, the operation success rate is high, oil drainage can be realized when the oil pipe is ensured, the oil drainage channel can be closed, the oil pipe is repeatedly used, the environmental pollution is avoided, convenience is brought to operation well repair, and the economic benefit and the social benefit are remarkable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic view of a front view and a half-section structure of the present invention
FIG. 2 is the schematic axial side structure diagram of the guide sleeve 5 of the present invention
In the figure, an upper joint 1, a central pipe 2, a limiting ring 2-1, a guide boss 2-2, an outer sleeve 3, an inner annular boss 3-1, a spring 4, a guide sleeve 5, a track groove 5-1, a guide limiting structure 5-1a, a lower guide structure 5-1b, a positioning groove 5-2, a straight groove 5-3, a sealing sleeve 6, a sealing ring 7, an oil drainage sleeve 8 and a lower joint 9; an inner oil drainage hole N and an outer oil drainage hole W.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
The purpose, technical solution and advantages of the embodiments of the present invention will be more apparent, and the accompanying drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments, and the following embodiments are used for explaining the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate the orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "plane", "cylinder", "hole", "thread" are to be interpreted broadly, and the specific meaning of the above terms in the present invention can be understood in specific cases by those skilled in the art.
As shown in fig. 1-2, the utility model comprises an upper joint 1, a central tube 2, an outer sleeve 3, a spring 4, a guide sleeve 5, a sealing sleeve 6, a sealing ring 7, an oil drain sleeve 8 and a lower joint 9; the method is characterized in that: the reusable rotary oil drainer is a cylinder, a lower connector 9 is sequentially in threaded connection with an oil drainage sleeve 8, a sealing sleeve 6 and a guide sleeve 5 from bottom to top, a central pipe 2 is inserted from central holes of the oil drainage sleeve 8, the sealing sleeve 6 and the guide sleeve 5, a guide boss 2-2 on the guide sleeve 5 presses the guide sleeve 5, a spring 4 is arranged between an upper limiting ring 2-1 and the guide boss 2-2 of the guide sleeve 5, the spring 4 is sleeved by an outer sleeve 3, an annular boss 3-1 in the upper end of the outer sleeve 3 clamps the limiting ring 2-1 to press the central pipe 2, and the upper end of the central pipe 2 is in threaded connection with an upper connector 1 and tightly presses the outer sleeve 3.
The upper part of the central tube 2 is provided with a limiting ring 2-1, the middle part is provided with two symmetrical guide bosses 2-2, the lower part is circumferentially and symmetrically provided with two inner oil drainage holes N, and the guide bosses 2-2 and the inner oil drainage holes N are circumferentially consistent on the central tube 2.
The outer sleeve 3 is a hollow round pipe, an inner annular boss 3-1 is arranged at the upper end of the outer sleeve, and an internal thread connected with the guide sleeve 5 is arranged at the lower end of the outer sleeve.
The inner cavity of the guide sleeve 5 is provided with a track groove 5-1, a positioning groove 5-2 and a straight groove 5-3, and the positioning groove 5-2 is matched with the guide boss 2-2 on the central tube 2 for limiting.
The sealing sleeve 6 is internally provided with four sealing rings 7 which are divided into an upper group and a lower group, and the two groups of sealing rings 7 are respectively arranged above and below the oil drainage hole N in the central pipe 2 to ensure the sealing between the central pipe 2 and the sealing sleeve 6.
Two outer oil leakage holes W are symmetrically formed in the middle of the oil leakage sleeve 8, and the outer oil leakage holes W and the inner oil leakage holes N are circumferentially spaced by 90 degrees.
When the reusable rotary oil drainer is used for descending a well, the rotary oil drainer is connected to the upper part of a deep well pump of a tubular column in the well, when an oil well is normally produced, the guide boss 2-2 of the central tube 2 is positioned in the straight groove 5-3 of the guide sleeve 5 under the elastic force of the spring 4 and the limiting effect of the outer sleeve 3, the inner oil drainage hole N is limited between the two groups of sealing rings 7 of the oil drainage sleeve 8, and the oil tube is internally and externally sealed.
When oil drainage is needed during oil well operation, a tubing string is lowered, and as the outer sleeve 3, the guide sleeve 5, the sealing sleeve 7 and the oil drainage sleeve 8 are in threaded connection with the lower joint 9, under the action of friction, the outer sleeve 4, the guide sleeve 5, the sealing sleeve 7 and the oil discharge sleeve 8 are kept still, the central pipe 2 overcomes the elasticity of the spring 5 to move downwards, the guide boss 2-2 moves downwards along the straight groove 5-3 of the guide sleeve 5 to enter the track groove 5-1, the rotary sliding is carried out for 45 degrees under the guiding action of the track groove 5-1 to reach the bottom limit position, then the oil pipe column is lifted upwards, the guide bosses 2-2 at the two sides of the central pipe 2 rotate and slide for 45 degrees again to enter the positioning grooves 5-2 to be locked, therefore, under the action of no external force, the central pipe 2 is limited, the inner oil drainage hole N cannot be reset and blocked again, and the successful oil drainage of the inner oil drainage hole N can be ensured. At the moment, the whole position of the central tube 2 moves downwards, the central tube rotates by 90 degrees in the circumferential direction, the sealing ring 7 does not cover the inner oil drainage hole N at the lower part of the central tube 2 any more, the inner oil drainage hole N on the central tube 2 and the outer oil drainage hole W on the oil drainage sleeve 8 coincide, the inner space and the outer space of the oil tubing string are communicated, and liquid in the oil tubing leaks into the well.
When the oil drainage channel is closed, the oil pipe column is lowered, the guide bosses 2-2 on two sides of the central pipe 2 rotate and slide for 45 degrees under the guide effect of the track grooves 5-1 of the guide sleeve 5 to reach the bottom limit position, the oil pipe column is lifted up and moves upwards under the elastic force of the spring 4 at the same time, the guide bosses 2-2 on two sides of the central pipe 2 leave the track positioning grooves 5-2 under the effect of the track grooves 5-1 and reach the upper straight groove 5-3, the central pipe 2 stops moving until the limiting ring 2-1 on the central pipe 2 reaches the limiting position of the outer sleeve 3, the inner oil drainage hole N returns to between the two groups of sealing rings 7 of the oil drainage sleeve 8, and the inside and the outside of the oil pipe are sealed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed in the above description in terms of preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make changes or modify equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention are within the scope of the present invention.
Claims (6)
1. A reusable rotary drain comprising: the oil leakage protection device comprises an upper joint (1), a central pipe (2), an outer sleeve (3), a spring (4), a guide sleeve (5), a sealing sleeve (6), a sealing ring (7), an oil leakage sleeve (8) and a lower joint (9); the method is characterized in that: the rotary oil drainer capable of being repeatedly used is a cylinder, a lower connector (9) is sequentially connected with an oil drainage sleeve (8), a sealing sleeve (6) and a guide sleeve (5) in a threaded manner from bottom to top, a central tube (2) is inserted from the oil drainage sleeve (8), the sealing sleeve (6) and a central hole of the guide sleeve (5), the guide boss (2-2) on the guide sleeve (5) presses the guide sleeve (5), a spring (4) is arranged between an upper limiting ring (2-1) and the guide boss (2-2) of the guide sleeve (5), the spring (4) is sleeved by an outer sleeve (3), the limiting ring (2-1) is clamped by an inner annular boss (3-1) at the upper end of the outer sleeve (3) to press the central tube (2), the upper end of the central tube (2) is in threaded connection with an upper connector (1), and the outer sleeve (3) is tightly pressed.
2. A reusable rotary drain according to claim 1, wherein: the upper portion of the central tube (2) is provided with a limiting ring (2-1), the middle portion of the central tube is provided with two symmetrical guide bosses (2-2), the lower portion of the central tube is circumferentially and symmetrically provided with two inner oil drainage holes (N), and the guide bosses (2-2) and the inner oil drainage holes (N) are circumferentially consistent on the central tube (2).
3. A reusable rotary drain according to claim 1, wherein: the outer sleeve (3) is a hollow round pipe, an inner annular boss (3-1) is arranged at the upper end of the outer sleeve, and an inner thread connected with the guide sleeve (5) is arranged at the lower end of the outer sleeve.
4. A reusable rotary drain according to claim 1, wherein: the inner cavity of the guide sleeve (5) is provided with a track groove (5-1), a positioning groove (5-2) and a straight groove (5-3), and the positioning groove (5-2) is matched with a guide boss (2-2) on the central tube (2) for limiting.
5. A reusable rotary drain according to claim 1, wherein: the sealing sleeve (6) is internally provided with four sealing rings (7) which are divided into an upper group and a lower group, and the two groups of sealing rings (7) are respectively arranged on the upper part and the lower part of the oil drainage hole (N) in the central pipe (2) to ensure the sealing between the central pipe (2) and the sealing sleeve (6).
6. A reusable rotary drain according to claim 1, wherein: two outer oil leakage holes (W) are symmetrically formed in the middle of the oil leakage sleeve (8), and the outer oil leakage holes (W) and the inner oil drainage holes (N) are circumferentially spaced by 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021430717.7U CN212958562U (en) | 2020-07-20 | 2020-07-20 | Repeatedly usable's rotation type bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021430717.7U CN212958562U (en) | 2020-07-20 | 2020-07-20 | Repeatedly usable's rotation type bleeder |
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| Publication Number | Publication Date |
|---|---|
| CN212958562U true CN212958562U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021430717.7U Active CN212958562U (en) | 2020-07-20 | 2020-07-20 | Repeatedly usable's rotation type bleeder |
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| CN (1) | CN212958562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151040A (en) * | 2022-02-08 | 2022-03-08 | 东营市兆鑫工贸有限责任公司 | Oil pipe oil drain device |
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2020
- 2020-07-20 CN CN202021430717.7U patent/CN212958562U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151040A (en) * | 2022-02-08 | 2022-03-08 | 东营市兆鑫工贸有限责任公司 | Oil pipe oil drain device |
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