CN206280036U - A kind of Simple casing head easy for installation - Google Patents
A kind of Simple casing head easy for installation Download PDFInfo
- Publication number
- CN206280036U CN206280036U CN201621398003.6U CN201621398003U CN206280036U CN 206280036 U CN206280036 U CN 206280036U CN 201621398003 U CN201621398003 U CN 201621398003U CN 206280036 U CN206280036 U CN 206280036U
- Authority
- CN
- China
- Prior art keywords
- layer sleeve
- casing head
- box cupling
- outer layer
- ring
- 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 is related to casing head technical field, a kind of especially Simple casing head easy for installation, including outer layer sleeve box cupling and the interior casing head hanging seat being connected in outer layer sleeve box cupling, the lower end of the outer layer sleeve box cupling is provided with the back-up ring being socketed on the outside of outer layer sleeve, spacing draw-in groove is formed between the back-up ring and casing head hanging seat, one end that the outer layer sleeve is located in outer layer sleeve box cupling is provided with the limited location snap ring matched with spacing draw-in groove, described sleeve pipe head gland is a ring flange being socketed on the outside of inner layer sleeve box cupling, and casing head gland is connected with casing head hanging seat by tie down screw, the lower end of the inner layer sleeve box cupling is provided with sealing ring, the lower end of described sleeve pipe head gland is provided with the seal groove matched with sealing ring.The structure that the utility model solves conventional sleeve tube head in the prior art is typically complex, and the relatively low shortcoming of the casing head bonding strength of simple structure on the market, installation is more convenient, and sealing effectiveness is more preferable.
Description
Technical field
The utility model is related to casing head technical field, more particularly to a kind of Simple casing head easy for installation.
Background technology
Casing head is Oil/gas Well well head fixing device, and one is support inner layer sleeve weight；Two weights for being subject to wellhead assembly
Amount；Three is to form pressure seal between ectonexine sleeve pipe；Four is for the pressure that may be accumulated between ectonexine sleeve pipe is provided
One outlet or in case of emergency to pumping liquid in well；Five can be the special operation for carrying out drilling process aspect.At present
For the casing head of high-pressure well, the need for its bearing capacity, it has to huge, the installation difficulty using existing structure complexity
It is very big, the particularly expensive casing head of price.But also the use of the said goods is just obviously exactly great for mesolow well
Waste.For reduces cost, reduce installation difficulty, well head is fixed in part oil field using ring-shaped iron plate always.The annular iron of one side
Plate is installed to be needed to employ electrogas welding in well head, and having run counter to Oil/gas Well well head must not employ the regulation of naked light, on the other hand, annular iron
Plate can only fix well head, supported weight, not have the repertoire of casing head.Authorization Notice No. (U of CN 203531826) is carried
A kind of Simple casing head for going out, solves above mentioned problem, and its cost is relatively low, and connection is more quick, but its connection is strong
Degree also decreases relative to conventional sleeve tube head, leakage is likely to result in the case of high intensity oil transportation and casing head is damaged
Possibility.To this, we release a kind of Simple casing head easy for installation.
Utility model content
The purpose of this utility model is, and city typically complex in order to solve the structure of conventional sleeve tube head in the prior art
The relatively low shortcoming of the casing head bonding strength of simple structure on face, and the Simple casing head a kind of easy for installation for proposing.
To achieve these goals, the utility model employs following technical scheme：
Design a kind of Simple casing head easy for installation, including outer layer sleeve box cupling and interior be connected in outer layer sleeve box cupling
Casing head hanging seat, the outer layer sleeve box cupling and casing head hanging seat are divided into symmetrical two halves composition and by clamping screw phase
In connection, the outer layer sleeve box cupling and outer layer sleeve and inner layer sleeve are respectively equipped with positioned at the lower end of casing head hanging seat, it is described
In outer layer sleeve box cupling and it is provided with inner layer sleeve box cupling, the lower end of the outer layer sleeve box cupling positioned at the upper end of casing head hanging seat
The back-up ring being socketed on the outside of outer layer sleeve is installed, and back-up ring is also classified into symmetrical two halves composition, the back-up ring is hung with casing head
Spacing draw-in groove is formed between seat, one end that the outer layer sleeve is located in outer layer sleeve box cupling is provided with and matches with spacing draw-in groove
Limited location snap ring, also including casing head gland, described sleeve pipe head gland is a ring flange being socketed on the outside of inner layer sleeve box cupling,
And casing head gland is connected with casing head hanging seat by tie down screw, the lower end of the inner layer sleeve box cupling is provided with sealing ring,
The lower end of described sleeve pipe head gland is provided with the seal groove matched with sealing ring.
Preferably, it is equidistant on the back-up ring and through being provided with the augering screw that is flexibly connected with limited location snap ring.
Preferably, the upper end of described sleeve pipe head hanging seat is provided with the seal groove symmetrical with seal groove, the sealing ring and two
The seal groove of seal groove composition matches, and the rubber seal being tightly connected with seal groove is socketed with the outside of the sealing ring,
And the circular trough for installing rubber seal is additionally provided with the outside of sealing ring.
Preferably, the both sides of outer layer sleeve box cupling junction are equipped with symmetrical fixed arm, and clamping screw described in two halves
Two symmetrical fixed arms are locked.
Preferably, the upper end of described sleeve pipe head gland is provided with the support tube column being socketed on the outside of inner layer sleeve box cupling.
The utility model proposes Simple casing head a kind of easy for installation, beneficial effect is：Outer layer sleeve is by limit
Position snap ring is connected in the spacing draw-in groove formed between back-up ring and casing head hanging seat, makes attachment structure more stable, by advancing spiral shell
Bar advances limited location snap ring, makes limited location snap ring more firm with the connection of casing head hanging seat, better tightness, in casing head gland and set
The joint face of tube head hanging seat is respectively provided with seal groove, makes sealing effectiveness between sealing ring and casing head gland and casing head hanging seat more
Good, so that the sealing effectiveness between inner layer sleeve box cupling and inner layer sleeve is more preferably, the utility model is solved in the prior art
The structure of conventional sleeve tube head is typically complex, and the relatively low shortcoming of the casing head bonding strength of simple structure on the market, make peace
Dress is more convenient, and sealing effectiveness is more preferable.
Brief description of the drawings
Fig. 1 be the utility model proposes Simple casing head a kind of easy for installation structural representation；
Fig. 2 be the utility model proposes Simple casing head a kind of easy for installation Structure of cross section schematic diagram.
In figure：Outer layer sleeve box cupling 1, casing head hanging seat 2, outer layer sleeve 3, inner layer sleeve 4, inner layer sleeve box cupling 5, sleeve pipe
Head gland 6, back-up ring 7, limited location snap ring 8, spacing draw-in groove 9, augering screw 10, sealing ring 11, seal groove 12, rubber seal 13,
Fixed arm 14, support tube column 15.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Reference picture 1-2, a kind of Simple casing head easy for installation, including outer layer sleeve box cupling 1 and interior it is connected to outer layer jacket
2 points of casing head hanging seat 2 in pipe box cupling 1, outer layer sleeve box cupling 1 and casing head hanging seat are constituted and by lock for symmetrical two halves
Tight bolt is connected, and in outer layer sleeve box cupling 1 and is respectively equipped with outer layer sleeve 3 and internal layer set positioned at the lower end of casing head hanging seat 2
In pipe 4, outer layer sleeve box cupling 1 and it is provided with inner layer sleeve box cupling 5, two halves outer layer sleeve box cupling positioned at the upper end of casing head hanging seat 2
The both sides of 1 junction are equipped with symmetrical fixed arm 14, and clamping screw is locked two symmetrical fixed arms 14, makes two
The connection of half outer layer sleeve box cupling 1 is more stable, and installs more convenient.
The lower end of outer layer sleeve box cupling 1 is provided with the back-up ring 7 for being socketed in the outside of outer layer sleeve 3, and back-up ring 7 is also classified into symmetrically
Two halves composition, form spacing draw-in groove 9 between back-up ring 7 and casing head hanging seat 2, outer layer sleeve 3 is located in outer layer sleeve box cupling 1
One end is provided with the limited location snap ring 8 matched with spacing draw-in groove 9, and outer layer sleeve 3 is connected to back-up ring 7 and sleeve pipe by limited location snap ring 8
In the spacing draw-in groove 9 formed between head hanging seat 2, make attachment structure more stable, it is equidistant on back-up ring 7 and through being provided with and limiting card
The augering screw 10 that ring 8 is flexibly connected, limited location snap ring 8 is advanced by augering screw 10, makes limited location snap ring 8 and casing head hanging seat 2
Connection it is more firm, better tightness.
Also include casing head gland 6, casing head gland 6 is a ring flange for being socketed in the outside of inner layer sleeve box cupling 5, and
Casing head gland 6 is connected with casing head hanging seat 2 by tie down screw, and the lower end of inner layer sleeve box cupling 5 is provided with sealing ring 11, set
The lower end of tube head gland 6 is provided with the seal groove 12 matched with sealing ring 11, and casing head gland 6 is used for internal layer casing coupling 5
Installation fix, casing head gland 6 is closely connected with casing head hanging seat 2 by tie down screw, the lower end of inner layer sleeve box cupling 5
Sealing ring 11 is arranged in the seal groove 12 of the lower end of casing head gland 6, makes to be carried out between inner layer sleeve box cupling 5 and inner layer sleeve 4
Sealing.
The upper end of casing head hanging seat 2 is provided with the seal groove 12 symmetrical with seal groove 12, sealing ring 11 and two seal grooves 12
The seal groove of composition matches, and the outside of sealing ring 11 is socketed with the rubber seal 13 being tightly connected with seal groove 12, and close
The outside of seal ring 11 is additionally provided with the circular trough for installing rubber seal 13, in casing head gland 6 and the company of casing head hanging seat 2
Junction is respectively provided with seal groove 12, makes the sealing effectiveness between sealing ring 11 and casing head gland 6 and casing head hanging seat 2 more preferable, from
And make sealing effectiveness between inner layer sleeve box cupling 5 and inner layer sleeve 4 more preferably, in the upper end of casing head gland 6 is provided with and is socketed in
The support tube column 15 in the outside of layer casing coupling 5.Support tube column 15 is provided for firm inner layer sleeve box cupling 5, makes inner layer sleeve
Box cupling 5 is more stable.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (5)
1. a kind of Simple casing head easy for installation, including outer layer sleeve box cupling (1) and interior it is connected in outer layer sleeve box cupling (1)
Casing head hanging seat (2), the outer layer sleeve box cupling (1) and casing head hanging seat (2) are divided into symmetrical two halves composition and by lock
Tight bolt is connected, and in the outer layer sleeve box cupling (1) and is respectively equipped with outer layer sleeve positioned at the lower end of casing head hanging seat (2)
(3) and inner layer sleeve (4), in the outer layer sleeve box cupling (1) and it is provided with inner layer sleeve positioned at the upper end of casing head hanging seat (2)
Box cupling (5), it is characterised in that the lower end of the outer layer sleeve box cupling (1) is provided with the back-up ring being socketed on the outside of outer layer sleeve (3)
(7), and back-up ring (7) is also classified into symmetrical two halves composition, spacing draw-in groove is formed between the back-up ring (7) and casing head hanging seat (2)
(9), the one end of the outer layer sleeve (3) in outer layer sleeve box cupling (1) is provided with the limiting card matched with spacing draw-in groove (9)
Ring (8), also including casing head gland (6), described sleeve pipe head gland (6) is socketed on the outside of inner layer sleeve box cupling (5) for one
Ring flange, and casing head gland (6) is connected with casing head hanging seat (2) by tie down screw, the inner layer sleeve box cupling (5)
Lower end is provided with sealing ring (11), and the lower end of described sleeve pipe head gland (6) is provided with the seal groove (12) matched with sealing ring (11).
2. a kind of Simple casing head easy for installation according to claim 1, it is characterised in that the back-up ring (7) is first-class
Away from and through being provided with the augering screw (10) being flexibly connected with limited location snap ring (8).
3. a kind of Simple casing head easy for installation according to claim 1, it is characterised in that described sleeve pipe head hanging seat
(2) upper end is provided with the seal groove (12) symmetrical with seal groove (12), the sealing ring (11) and two seal groove (12) compositions
Seal groove match, be socketed with the rubber seal being tightly connected with seal groove (12) on the outside of the sealing ring (11)
(13), and on the outside of sealing ring (11) it is additionally provided with the circular trough for installing rubber seal (13).
4. a kind of Simple casing head easy for installation according to claim 1, it is characterised in that outer layer sleeve described in two halves
The both sides of box cupling (1) junction are equipped with symmetrical fixed arm (14), and clamping screw enters two symmetrical fixed arms (14)
Row locking.
5. a kind of Simple casing head easy for installation according to claim 1, it is characterised in that described sleeve pipe head gland
(6) upper end is provided with the support tube column (15) being socketed on the outside of inner layer sleeve box cupling (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621398003.6U CN206280036U (en) | 2016-12-20 | 2016-12-20 | A kind of Simple casing head easy for installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621398003.6U CN206280036U (en) | 2016-12-20 | 2016-12-20 | A kind of Simple casing head easy for installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280036U true CN206280036U (en) | 2017-06-27 |
Family
ID=59073081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621398003.6U Expired - Fee Related CN206280036U (en) | 2016-12-20 | 2016-12-20 | A kind of Simple casing head easy for installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575775A (en) * | 2020-11-30 | 2022-06-03 | 中国石油天然气股份有限公司 | Wellhead assembly |
-
2016
- 2016-12-20 CN CN201621398003.6U patent/CN206280036U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575775A (en) * | 2020-11-30 | 2022-06-03 | 中国石油天然气股份有限公司 | Wellhead assembly |
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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: 20170627 Termination date: 20211220 |