CN206522114U - A kind of Simple wellhead apptss - Google Patents
A kind of Simple wellhead apptss Download PDFInfo
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- CN206522114U CN206522114U CN201720146186.0U CN201720146186U CN206522114U CN 206522114 U CN206522114 U CN 206522114U CN 201720146186 U CN201720146186 U CN 201720146186U CN 206522114 U CN206522114 U CN 206522114U
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- sealing ring
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- way sealing
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Abstract
A kind of Simple wellhead apptss, including upper flange, lower flange, two-way sealing ring and connecting bolt, also include end-face seal ring, first plug and the second plug, the upper and lower end face of two-way sealing ring is provided with the detent that longitudinal section is isosceles trapezoidal structure, upper flange bottom surface is provided with the first boss being engaged by clamping with two-way sealing ring upper surface detent, lower flange top surface is provided with the second boss being engaged by clamping with two-way sealing ring lower surface detent, the external diameter of two-way sealing ring is more than the external diameter of lower flange, and the external diameter of two-way sealing ring is less than the external diameter of upper flange.During screwing connecting bolt, two-way sealing ring is compressed and deformed to inside and outside distending by upper flange and lower flange, the two-way sealing ring of distending compresses internal layer flow string and surface pipe, further strengthen sealing effectiveness and internal layer flow string is fixed together with surface pipe with Simple wellhead apptss, the utility model is safe and reliable, connection facility, can be saved the activity duration, reduce production cost.
Description
Technical field
The utility model is related to a kind of wellhead assembly, more specifically to a kind of Simple wellhead apptss.
Background technology
The exploitation of oil gas field is general to be all at least 230mm in exploitation mouth using internal diameter, and height is at least 520mm large-scale mark
Quasi- well head, its weight is about 900Kg, and volume, the weight of standard well head are big, install inconvenience, and with high costs, standard wellhead assembly
Mounting means be that upper flange is connected with christmas equipment, bottom is connected with sleeve pipe or air collecting pipe, and upper flange and bottom, which are fixed, to be connected
Connect, connected mode is complicated, and the sealing of any one junction goes wrong and can all influence to exploit work.But buried for coal bed gas
The oil gas field that shallow, pressure is low, yield is not high is hidden, standard wellhead assembly is used during exploitation, this can undoubtedly increase drilling cost and brill
The well cycle, cause cost-recovering time lengthening or because yield is too low can not cost-recovering the problem of.
For these reasons, in the case where ensureing safety, design one kind possesses that standard wellhead assembly institute is functional, connection
Convenient and safe and reliable simple oil recovery or gas wellhead equipment, can be saved the activity duration, reduce production cost.
Utility model content
The purpose of this utility model is to provide one kind and overcomes the deficiencies in the prior art, simple in construction, reasonable in design, safely may be used
Lean on, can save the activity duration, reduce the Simple wellhead apptss of production cost.
To achieve these goals, the technological means that the utility model is taken is：
A kind of Simple wellhead apptss, including upper flange, lower flange, two-way sealing ring and connecting bolt, upper flange and under
The oil pipe channel internal diameter phase in the middle of the oil pipe passage of same inner diameter, the internal diameter and upper flange of two-way sealing ring is provided with the middle of flange
Together, two-way sealing ring is arranged on above lower flange, and upper flange is arranged on above two-way sealing ring, the oil pipe channel circumference of upper flange
The uniform penetrating connecting hole of a circle is provided with, connecting hole is parallel with the direction of oil pipe passage, the oil pipe passage week of lower flange upper surface
Enclose and be provided with the uniform screwed hole of a circle, screwed hole is blind hole structure, a pair of the connecting hole of upper flange and the screwed hole 1 of lower flange
Together, connecting bolt is arranged on upper flange connecting hole with upper flange is fixed together with lower flange in lower flange screwed hole, also wraps
End-face seal ring, the first plug and the second plug are included, the upper and lower end face of two-way sealing ring is provided with longitudinal section for isosceles trapezoid knot
The detent of structure, upper flange bottom surface is provided with the first boss being engaged by clamping with two-way sealing ring upper surface detent, under
Flange top surface is provided with the second boss being engaged by clamping with two-way sealing ring lower surface detent, and the external diameter of two-way sealing ring is big
It is less than the external diameter of upper flange in the external diameter of the external diameter of lower flange, and two-way sealing ring.The tube wall of lower flange oil pipe channel circumference is opened
There are four uniform pressure release passages, the pressure release passage runs through the upper surface and lower surface of lower flange, and the pressure release passage and oil pipe
Passage is parallel, and the tube wall of upper flange oil pipe channel circumference is provided with four uniform pressure release passages, and the pressure release passage is blind hole structure,
The opening of the blind hole is in the lower surface of upper flange, and the pressure release passage is parallel with oil pipe passage, and two-way sealing ring is provided with four
The through hole of cloth, the through hole aligns with the pressure release passage of upper flange to be connected, and the through hole aligns with the pressure release passage of lower flange and connected.
The outer-diameter end face of upper flange is uniformly provided with the pipe plug opening of four helicitic textures, and the pressure release of four pipe plug openings and four blind hole structures is led to
Road is communicated respectively, and the first plug is provided with three, and the first plug is closed structure, and the second plug is provided with what is be connected with pressure gauge
Tapped through hole, end-face seal ring is placed in the pipe plug opening of upper flange, the plug of the first plug and the second plug respectively with upper flange
Hole is threadedly coupled and compresses end-face seal ring.
First plug and the second plug are respectively and fixedly provided with and screw button, screw button surface and are provided with the anti-of waveform or bar shaped
Draw runner, screws the tread plate that button surface is provided with waveform or bar shaped, screwing and unclamp beneficial to the first plug and the second plug.
The two-way sealing ring and the sealing ring oil resistant that end-face seal ring is that nitrile rubber sealing ring nitrile rubber is made,
High pressure resistant, service life is long.
The external diameter of the upper flange is 230~280mm, and internal diameter is 120~180mm, is highly 90~110mm, upper flange
Far smaller than the volume and weight of standard inlet upper flange, are easy to mobile and install.
The external diameter of the lower flange is 180~240mm, and internal diameter is 120~180mm, is highly 15~20mm, lower flange is remote
Much smaller than the volume and weight of standard inlet bottom, it is easy to mobile and installs.
The two-way sealing ring outer-diameter end face is gradually thicker from bottom to top, is easy to the installation of surface pipe.
The beneficial effects of the utility model are：Screw the process that upper flange and lower flange are fixed together by connecting bolt
In, two-way sealing ring is compressed and deformed to inside and outside distending by upper flange and lower flange, and the two-way sealing ring of distending compresses internal layer and adopted
Oil pipe and surface pipe, further strengthen sealing effectiveness and internal layer flow string, surface pipe and Simple wellhead apptss are fixed
Together, the connected mode of wellhead assembly is simplified, the problem of must using bulky standard well head is solved, reduces
Production cost, the utility model is additionally provided with pressure release passage and pressure gauge, and the institute for possessing standard well head is functional and meet safety
Production standard.
Brief description of the drawings
The utility model is described in further detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 for Fig. 1 A-A to revolved sectional view.
In figure：Upper flange 10；Lower flange 20；Two-way sealing ring 30；End-face seal ring 40；First plug 50；Screw button 51；
Second plug 60；Connecting bolt 70；Pressure gauge 80.
Embodiment
The utility model is described in further detail with specific implementation method below in conjunction with the accompanying drawings.
Specific embodiment one, as shown in Figure 1, 2, a kind of Simple wellhead apptss, including it is upper flange 10, lower flange 20, two-way
The oil pipe passage of same inner diameter is provided with the middle of sealing ring 30 and connecting bolt 70, upper flange 10 and lower flange 20, it is two-way close
Oil pipe channel internal diameter in the middle of the internal diameter and upper flange 10 of seal 30 is identical, and two-way sealing ring 30 is arranged on the top of lower flange 20,
Upper flange 10 is arranged on the top of two-way sealing ring 30, and two-way sealing ring 30 and end-face seal ring 40 are nitrile rubber sealing ring,
The sealing ring oil resistant that nitrile rubber is made, high pressure resistant, service life is long.It is uniform that the oil pipe channel circumference of upper flange 10 is provided with a circle
Penetrating connecting hole, connecting hole is parallel with the direction of oil pipe passage, and the oil pipe channel circumference of the upper surface of lower flange 20 is provided with a circle
Uniform screwed hole, screwed hole is blind hole structure, and the connecting hole of upper flange 10 aligns one by one with the screwed hole of lower flange 20, connection
Bolt 70 is arranged on the connecting hole of upper flange 10 and upper flange 10 is fixed together with lower flange 20 in the screwed hole of lower flange 20, also
Including end-face seal ring 40, the first plug 50 and the second plug 60, the upper and lower end face of two-way sealing ring 30 is provided with longitudinal section and is
The detent of isosceles trapezoidal structure, the bottom surface of upper flange 10 is provided with to be engaged by clamping with the upper surface detent of two-way sealing ring 30
First boss, the top surface of lower flange 20 is provided with the second boss being engaged by clamping with the lower surface detent of two-way sealing ring 30,
The external diameter of two-way sealing ring 30 is more than the external diameter of lower flange 20, and external diameter of the external diameter less than upper flange 10 of two-way sealing ring 30,
The outer-diameter end face of two-way sealing ring 30 is gradually thicker from bottom to top, is easy to the installation of surface pipe.The oil pipe channel circumference of lower flange 20
Tube wall be provided with four uniform pressure release passages, the pressure release passage runs through the upper surface and lower surface of lower flange 20, and the pressure release
Passage is parallel with oil pipe passage, and the tube wall of the oil pipe channel circumference of upper flange 10 is provided with four uniform pressure release passages, and the pressure release is led to
Road is blind hole structure, and the opening of the blind hole is in the lower surface of upper flange 10, and the pressure release passage is parallel with oil pipe passage, two-way close
Seal 30 is provided with four uniform through holes, and the through hole aligns with the pressure release passage of upper flange 10 to be connected, and the through hole and lower flange
20 pressure release passage alignment connection.The outer-diameter end face of upper flange 10 is uniformly provided with the pipe plug opening of four helicitic textures, four plugs
The pressure release passage of Kong Yusi blind hole structure is communicated respectively, and the first plug 50 is provided with three, and the first plug 50 is closed knot
Structure, the second plug 60 is provided with the tapped through hole being connected with pressure gauge 80, and end-face seal ring 40 is placed in the pipe plug opening of upper flange 10,
First plug 50 is threadedly coupled with the pipe plug opening of upper flange 10 and compresses end-face seal ring 40 respectively with the second plug, the first plug
50 and second plug 60 be respectively and fixedly provided with and screw button 51, the tread plate that the surface of button 51 is provided with waveform or bar shaped is screwed, beneficial to
One plug 50 and the second plug 60 are screwed and unclamped.When pressure gauge 80 shows that borehole pressure is too high, the first plug 50 is removed
With the second plug 60, the pressure in well can be released by pipe plug opening.The internal diameter of standard well head is at least 230mm, height
At least 520mm, and the external diameter of upper flange 10 is 230~280mm in the utility model, internal diameter is 120~180mm, is highly
90~110mm, the external diameter of lower flange 20 is 180~240mm, and internal diameter is 120~180mm, is highly 15~20mm, thus this reality
It is far smaller than the volume and weight of standard inlet with a kind of new Simple wellhead apptss, is easy to mobile and installs, and this practicality is new
The external diametrical extent for the flowline that type can be installed is identical with the internal diameter of upper lower flange, is 120~180mm, the external diameter of the flowline
2nd/to three/3rds of flowline external diameter used in standard well head, in the case where field pressure is certain, flowline becomes
Carefully, it can increase and oil pressure, so as to increase oil pump capacity.
When in use, internal layer flow string passes through the internal diameter of two-way sealing ring 30 in oil pipe passage, top layer set to the utility model
Pipe sleeve is connected on the external diameter of lower flange 20, and surface pipe inwall pushes down the outer-diameter end face of two-way sealing ring 30, screws connection spiral shell
During upper flange 10 and lower flange 20 are fixed together by bolt 70, two-way sealing ring 30 is pressed by upper flange 10 with lower flange 20
Tightly and to inside and outside distending deform, the two-way sealing ring 30 of distending compresses internal layer flow string and surface pipe, further strengthens sealing
Effect simultaneously causes internal layer flow string, surface pipe and Simple wellhead apptss to be fixed together, and simplifies the connection side of wellhead assembly
Formula, solves the problem of must using bulky standard well head, reduces production cost, and the utility model, which is additionally provided with, to be let out
Pressure passageway and pressure gauge 80, the institute for possessing standard well head are functional and meet safety in production standard.
Specific embodiment two, it is preferred that the external diameter of upper flange 10 is 276mm, and internal diameter is 142mm, is highly 99mm, laxative remedy
The external diameter of orchid 20 is 218mm, and internal diameter is 142mm, is highly 16mm, fuel-displaced used in the Simple wellhead apptss in the present embodiment
Pipe external diameter is about the half of standard flowline external diameter, results in and preferably goes out simple wellhead dress in oil pressure, and the embodiment
The size and weight put are smaller than standard well head, and mobile facility is carried in installation process.
Certain described above is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in essential scope of the present utility model, also belong to
In protection domain of the present utility model.
Claims (6)
1. a kind of Simple wellhead apptss, including upper flange (10), lower flange (20), two-way sealing ring (30) and connecting bolt
(70), upper flange (10) and the middle oil pipe passage for being provided with same inner diameter of lower flange (20), the internal diameter of two-way sealing ring (30)
Identical with the oil pipe channel internal diameter in the middle of upper flange (10), two-way sealing ring (30) is arranged on above lower flange (20), upper flange
(10) it is arranged on above two-way sealing ring (30), the oil pipe channel circumference of upper flange (10) is provided with the uniform penetrating connection of a circle
Hole, connecting hole is parallel with the direction of oil pipe passage, and the oil pipe channel circumference of lower flange (20) upper surface is provided with the uniform spiral shell of a circle
Pit, screwed hole is blind hole structure, and the connecting hole of upper flange (10) aligns one by one with the screwed hole of lower flange (20), connecting bolt
(70) upper flange (10) connecting hole is arranged on being fixed on upper flange (10) with lower flange (20) in lower flange (20) screwed hole
Together, it is characterised in that：Also include end-face seal ring (40), the first plug (50) and the second plug (60), two-way sealing ring
(30) upper and lower end face be provided with longitudinal section be isosceles trapezoidal structure detent, upper flange (10) bottom surface be provided with it is two-way
The first boss that sealing ring (30) upper surface detent is engaged by clamping, lower flange (20) top surface is provided with and two-way sealing ring
(30) second boss that lower surface detent is engaged by clamping, the external diameter of two-way sealing ring (30) is more than the outer of lower flange (20)
Footpath, and external diameter of the external diameter less than upper flange (10) of two-way sealing ring (30)；The tube wall of lower flange (20) oil pipe channel circumference is opened
Have four uniform pressure release passages, the pressure release passage runs through the upper surface and lower surface of lower flange (20), and the pressure release passage with
Oil pipe passage is parallel, and the tube wall of upper flange (10) oil pipe channel circumference is provided with four uniform pressure release passages, and the pressure release passage is
Blind hole structure, the opening of the blind hole is in the lower surface of upper flange (10), and the pressure release passage is parallel with oil pipe passage, two way seal
Circle (30) is provided with four uniform through holes, and the through hole aligns with the pressure release passage of upper flange (10) to be connected, and the through hole and laxative remedy
The pressure release passage alignment connection of blue (20)；The outer-diameter end face of upper flange (10) is uniformly provided with the pipe plug opening of four helicitic textures, four
Individual pipe plug opening is communicated respectively with the pressure release passage of four blind hole structures, and the first plug (50) is provided with three, and the first plug
(50) it is closed structure, the second plug (60) is provided with the tapped through hole being connected with pressure gauge (80), and end-face seal ring (40) is placed in
In the pipe plug opening of upper flange (10), pipe plug opening of the first plug (50) with the second plug respectively with upper flange (10) is threadedly coupled simultaneously
Compress end-face seal ring (40).
2. a kind of Simple wellhead apptss according to claim 1, it is characterised in that：First plug (50) with second
Stifled (60), which are respectively and fixedly provided with, screws button (51), screws the tread plate that button (51) surface is provided with waveform or bar shaped.
3. a kind of Simple wellhead apptss according to claim 1, it is characterised in that：The two-way sealing ring (30) and end face
Sealing ring (40) is nitrile rubber sealing ring.
4. a kind of Simple wellhead apptss according to claim 1, it is characterised in that：The external diameter of the upper flange (10) is
230~280mm, internal diameter is 120~180mm, is highly 90~110mm.
5. a kind of Simple wellhead apptss according to claim 1, it is characterised in that：The external diameter of the lower flange (20) is
180~240mm, internal diameter is 120~180mm, is highly 15~20mm.
6. a kind of Simple wellhead apptss according to claim 1, it is characterised in that：Two-way sealing ring (30) the external diameter end
Face is gradually thicker from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720146186.0U CN206522114U (en) | 2017-02-18 | 2017-02-18 | A kind of Simple wellhead apptss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720146186.0U CN206522114U (en) | 2017-02-18 | 2017-02-18 | A kind of Simple wellhead apptss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522114U true CN206522114U (en) | 2017-09-26 |
Family
ID=59892809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720146186.0U Active CN206522114U (en) | 2017-02-18 | 2017-02-18 | A kind of Simple wellhead apptss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206522114U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027373A (en) * | 2021-05-28 | 2021-06-25 | 胜利油田海胜石油机械制造有限公司 | Integral wellhead assembly |
| CN114526387A (en) * | 2022-02-17 | 2022-05-24 | 中海油能源发展装备技术有限公司 | Instrument flange for high-temperature and high-pressure pipeline and manufacturing method |
-
2017
- 2017-02-18 CN CN201720146186.0U patent/CN206522114U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027373A (en) * | 2021-05-28 | 2021-06-25 | 胜利油田海胜石油机械制造有限公司 | Integral wellhead assembly |
| CN113027373B (en) * | 2021-05-28 | 2021-07-27 | 胜利油田海胜石油机械制造有限公司 | Integral wellhead assembly |
| CN114526387A (en) * | 2022-02-17 | 2022-05-24 | 中海油能源发展装备技术有限公司 | Instrument flange for high-temperature and high-pressure pipeline and manufacturing method |
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