CN207863906U - A kind of inserted metal sealing mandrel type hanger of step - Google Patents
A kind of inserted metal sealing mandrel type hanger of step Download PDFInfo
- Publication number
- CN207863906U CN207863906U CN201820137987.5U CN201820137987U CN207863906U CN 207863906 U CN207863906 U CN 207863906U CN 201820137987 U CN201820137987 U CN 201820137987U CN 207863906 U CN207863906 U CN 207863906U
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- CN
- China
- Prior art keywords
- ring
- way
- sealing
- mandrel
- metal sealing
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- Expired - Fee Related
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Abstract
The utility model provides a kind of inserted metal sealing mandrel type hanger of step, it is designed for seal failure caused by solving the problems, such as rubber seal aging or the erosion medium resistance that is corroded, lower part four-way junction of casing is bolted in upper flange, hanger body passes through internal thread connecting sleeve, it is set with by hanging screw outside hanger body, the upper metal sealing of cone-shape metallic leak-proof ring and jackscrew composition, the step surface of mandrel and four-way is machined with annular tooth, inserted tooth type step is under the action of bunch tube weight by annular tooth embedding sealing gasket ring, realize lower metal sealing, cone-shape metallic leak-proof annular strain is excited by hanging screw, two conical surfaces are made to generate interference fit, realize cone-shape metallic leak-proof, annular space between deformable body sealing sleeve pipe and four-way.Seal failure caused by this hanger can solve the problems, such as in gas well at HTHP due to rubber seal aging or corrosive medium corrode, has corrosion resistance strong, sealing effect is good, advantage with long service life.
Description
Technical field
The utility model belongs to oil drilling and extracting equipment technical field, and it is outstanding to be related to a kind of inserted metal sealing mandrel type of step
Hanging device.
Background technology
With the development of petroleum exploration and development, suffer from that high temperature and pressure oil/gas well is more and more, the requirement to wellhead assembly
Also it increasingly improves.Common casing hang is mainly mandrel type and slip-type, and sealing system is not all avoided that using rubber
Glue seals；The case where being exploited for a long time containing acid medium (hydrogen sulfide) gas recovery well is encountered, building rubber compound sealing system is easily corroded
And leak point is generated, the remedial efforts after seal failure are difficult, some can not even be remedied, can only kill-job, closing well.
Utility model content
The purpose of this utility model is to provide a kind of inserted metal sealing mandrel type hangers of step, can solve rubber
Seal failure problem caused by glue seal aging or the erosion medium resistance that is corroded, the wellhead sealing for meeting high temperature and pressure oil/gas well are wanted
It asks.
The specific technical solution of the utility model is：A kind of inserted metal sealing mandrel type hanger of step, including spiral shell
Bolt, nut, mandrel, upper flange, octagonal sealing ring, hanging screw, cone-shape metallic leak-proof ring, jackscrew, metallic packing ring, positioning
Ring, deformable body, metal gasket ring, lower part fixing bolt, casing, four-way, which is characterized in that upper flange 4 passes through bolt 1 and nut 2
It connect with four-way 15, and is sealed by octagonal sealing ring 5, cone-shape metallic leak-proof ring 7 is connected with hanging screw 6, and together
Mounted on the spatial position of mandrel 3 and four-way 15,10 fixing seal gasket ring 9 of locating ring, and with mandrel 3 and gasket ring 9
Sit the step surface for being placed on four-way 15.
The step surface of this hanger mandrel and four-way is machined with annular tooth, by annular tooth under the action of bunch tube weight
Embedding sealing gasket ring realizes that lower metal sealing, extra bunch tube weight transmitting to four-way ensure that lower metal sealing will not
It fails because of bunch tube weight；Cone-shape metallic leak-proof ring is connected with hanging screw, and is installed along with the sky of mandrel and four-way
Between position, two conical surfaces of cone-shape metallic leak-proof ring generate interference fit with mandrel and four-way, realize upper metal sealing, and by
Jackscrew fixes taper metallic packing ring；Deformable body generates deformation under the action of bunch tube weight, plays sealing sleeve pipe and four
The effect of annular space between logical.
The utility model has the beneficial effects that：This hanger can solve in high temperature and pressure oil/gas well because of rubber seal aging or
The erosion medium resistance that is corroded and caused by seal failure problem, have corrosion resistance it is strong, sealing effect is good, with long service life excellent
Point.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the inserted metal sealing mandrel type hanger structural schematic diagram of the utility model step.
Fig. 2 is A partial enlarged views in position in Fig. 1.
Fig. 3 is B partial enlarged views in position in Fig. 1.
Figure label：1- bolts, 2- nuts, 3- mandrels, 4- upper flanges, 5- illiciumverums sealing ring, 6- hanging screws, 7- tapers
Metallic packing ring, 8- jackscrews, 9- gasket rings, 10- locating rings, 11- deformable bodies, 12- metals gasket ring, the lower parts 13- fixing bolt,
14- casings, 15- four-ways.
Specific implementation mode
The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description
In become apparent, or recognized by the practice of the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the inserted metal sealing mandrel type hanger of a kind of step, it is characterized in that including bolt
1, nut 2, mandrel 3, upper flange 4, octagonal sealing ring 5, hanging screw 6, cone-shape metallic leak-proof ring 7, jackscrew 8, gasket ring 9,
Locating ring 10, deformable body 11, metal gasket ring 12, lower part fixing bolt 13, casing 14, four-way 15：
A kind of locating ring 10 fixing seal gasket ring 9 of the inserted metal sealing mandrel type hanger of step, and with core
Axis 3 and gasket ring 9 sit the step surface for being placed on four-way 15 together.Cone-shape metallic leak-proof ring 7 is connected with hanging screw 6, and one
It rises mounted on the spatial position of mandrel 3 and four-way 15.Upper flange 4 is connect by bolt 1 and nut 2 with four-way 15, and by illiciumverum
Sealing ring 5 is sealed.
A kind of mandrel 3 of the inserted metal sealing mandrel type hanger of step and the step surface of four-way 15 are machined with
Annular tooth realizes lower metal sealing, extra casing by annular tooth embedding sealing gasket ring 9 under the action of bunch tube weight
Weight transmitting go here and there to four-way 15, ensures that lower metal sealing will not fail because of bunch tube weight；Cone-shape metallic leak-proof ring 7 with it is outstanding
Hang screw 6 to be connected, and be installed along with the spatial position of mandrel 3 and four-way 15, two conical surfaces of cone-shape metallic leak-proof ring 7 and
Mandrel 3 and four-way 15 generate interference fit, realize upper metal sealing, and fix taper metallic packing ring 7 by jackscrew 8；It is variable
Body 11 generates deformation under the action of bunch tube weight, plays the role of annular space between sealing sleeve pipe 14 and four-way 15.
It should be noted last that：Above example is only to illustrate and unrestricted the technical solution of the utility model, to the greatest extent
Pipe is described in detail the utility model with reference to above-described embodiment, it will be apparent to an ordinarily skilled person in the art that：Still
The utility model can be modified or replaced equivalently, without departing from any modification of the spirit and scope of the utility model
Or part is replaced, and should all be covered in the right of the utility model.
Claims (4)
1. a kind of inserted metal sealing mandrel type hanger of step, it is characterized in that including bolt (1), nut (2), mandrel (3),
Upper flange (4), hanging screw (6), cone-shape metallic leak-proof ring (7), jackscrew (8), gasket ring (9), is determined at octagonal sealing ring (5)
Position ring (10), deformable body (11), metal gasket ring (12), lower part fixing bolt (13), casing (14), four-way (15), feature exists
In upper flange 4 is connect by bolt 1 and nut 2 with four-way 15, and is sealed by octagonal sealing ring 5, cone-shape metallic leak-proof ring
7 are connected with hanging screw 6, and are installed along with the spatial position of mandrel 3 and four-way 15,10 fixing seal gasket ring 9 of locating ring,
And the step surface for being placed on four-way 15 is sat with mandrel 3 and gasket ring 9.
2. the inserted metal sealing mandrel type hanger of a kind of step according to claim 1, it is characterised in that：Taper gold
Two conical surfaces and mandrel (3) and four-way (15) for belonging to sealing ring (7) generate interference fit, realize upper metal sealing, and by pushing up
The fixed taper metallic packing ring (7) of silk (8).
3. the inserted metal sealing mandrel type hanger of a kind of step according to claim 1, it is characterised in that：The core
The step surface of axis (3) and four-way (15) is machined with annular tooth.
4. the inserted metal sealing mandrel type hanger of a kind of step according to claim 1, it is characterised in that：It is described can
Deformable body (11) generates deformation under the action of bunch tube weight, plays the work of annular space between sealing sleeve pipe (14) and four-way (15)
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137987.5U CN207863906U (en) | 2018-01-26 | 2018-01-26 | A kind of inserted metal sealing mandrel type hanger of step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137987.5U CN207863906U (en) | 2018-01-26 | 2018-01-26 | A kind of inserted metal sealing mandrel type hanger of step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207863906U true CN207863906U (en) | 2018-09-14 |
Family
ID=63458982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820137987.5U Expired - Fee Related CN207863906U (en) | 2018-01-26 | 2018-01-26 | A kind of inserted metal sealing mandrel type hanger of step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207863906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878942A (en) * | 2021-02-01 | 2021-06-01 | 德州联合石油科技股份有限公司 | Self-excitation all-metal sealing high-pressure wellhead device |
-
2018
- 2018-01-26 CN CN201820137987.5U patent/CN207863906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878942A (en) * | 2021-02-01 | 2021-06-01 | 德州联合石油科技股份有限公司 | Self-excitation all-metal sealing high-pressure wellhead device |
| CN112878942B (en) * | 2021-02-01 | 2021-09-21 | 德州联合石油科技股份有限公司 | Self-excitation all-metal sealing high-pressure wellhead device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20190126 |