CN203856443U - Telescopic thermal recovery casing head device - Google Patents
Telescopic thermal recovery casing head device Download PDFInfo
- Publication number
- CN203856443U CN203856443U CN201420181691.5U CN201420181691U CN203856443U CN 203856443 U CN203856443 U CN 203856443U CN 201420181691 U CN201420181691 U CN 201420181691U CN 203856443 U CN203856443 U CN 203856443U
- Authority
- CN
- China
- Prior art keywords
- hanger
- upper flange
- thermal recovery
- casing head
- head device
- 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
Links
Abstract
The utility model relates to a telescopic thermal recovery casing head device which adopts the technical scheme that the telescopic thermal recovery casing head device comprises an upper flange, a sealing ring, a shell, a high-temperature pressure gauge, a stop valve, an end cover, a plug, a thermal recovery brake valve, a backing ring, a hanger and a casing pipe, wherein the upper part of the shell is connected with the upper flange by a bolt; the sealing ring is arranged between the shell and the upper flange; the lower part of the upper flange is provided with a lower lug plate; the lower lug plate of the upper flange is connected with the hanger; two test interfaces are respectively formed at the two sides of the shell; the test interface at one end of the shell is connected with the end cover; the end cover is provided with the stop valve which is connected with the high-temperature pressure gauge; the test interface at the other end of the shell is connected with the thermal recovery brake valve by the backing ring; the end part of the thermal recovery brake valve is provided with the plug; the hanger is connected with the casing pipe. The telescopic thermal recovery casing head device has the beneficial effects that the device is reasonable in structure and design and convenient to install and use, and safety guarantee is provided for the reliable mining of a thickened oil thermal recovery well.
Description
Technical field
The utility model relates to a kind of casing joint device, particularly a kind of extension type thermal extraction casing head device.
Background technology
Thick oil underground well makes its development cost higher because viscosity high fluidity is poor, and in oil price lower period, the exploitation of viscous crude gets the brush-off, and its production practice is consistent with relevant equipment falling behind and simple state.Fixing and the consistent use of the installation doughnut-shaped steel plate welding of heavy oil development well head at present, instantly telescoping tube expanded by heating after steam injection, the weld seam of welding is backed down, wellhead assembly will be in plumbness in upper and lower uncertain the unknown like this, telescoping tube also in direction of rotation in without restrained condition, cause operation to be difficult to control, accident potential is serious.Particularly, the installing in shackle process of well head, the connection between telescoping tube just there will be and releases, thereby causes the thermal medium of interior injection to leak, and when serious, telescoping tube can penetrate pit shaft to mid-air explosion under the effect of high-temperature high-pressure medium.
Chinese patent literature number: 101333917A, patent name is < < elastic tube-type thermal production casing head > >, its technical scheme is: be inserted in suspension body steel cylinder in lower flange after, in upper flange, dock, suspension body steel cylinder bottom is with the convex edge of undergauge, and coordinate with the hole enlargement chimb of neighboring, telescoping tube upper end, between telescoping tube upper port and suspension body steel cylinder upper port, be connected with the elastic tube that connects suspension body steel cylinder inner cavity chamber, the lower end tube wall of lower flange is provided with the screw thread being connected with outer tube.This device is unstable in the casing head sealing of High-temperature Spurting of Steam Injuction Well, and the well head and the production tree that are arranged on casing head are up and down because expand with heat and contract with cold, and cause work to play pendulum, and affect oil recovery efficiency.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of extension type thermal extraction casing head device is provided, and has guaranteed the safety of casing head and well head.
Its technical scheme is: comprise upper flange, sealing ring, housing, high temperature pressure table, stop valve, end cap, plug, thermal recovery gate valve, gasket ring, hanger, sleeve pipe, housing top is bolted upper flange, between housing and upper flange, be provided with sealing ring, the bottom of described upper flange is provided with lower ear plate, lower ear plate on upper flange connects hanger, the both sides of housing are provided with test interface, one end test interface wherein connects end cap, described end cap is provided with stop valve, stop valve connects high temperature pressure table, other end test interface connects thermal recovery gate valve by gasket ring, the end of thermal recovery gate valve is provided with plug, hanger splicing sleeve.
Above-mentioned lower ear plate is provided with interior shoulder, and one end of described hanger is provided with the joint shoulder matching with interior shoulder on lower ear plate, and the other end of hanger is provided with the nipple being connected with sleeve pipe.
Above-mentioned joint shoulder is provided with the blind hole of perforate lower end, top sealing.
The nipple of above-mentioned hanger end is provided with slurry channel.
The beneficial effects of the utility model are: reasonable in design, and easy to install, for the reliable exploitation of thick oil thermal extraction provides safety guarantee.When we carry out high temperature and high pressure steam while handling up to thick oil thermal extraction, sleeve pipe there will be the phenomenon of extending and shortening because expanding with heat and contract with cold, extension type thermal extraction casing head is well positioned to meet this special operation condition, and sleeve pipe and casing head have been avoided occurring the stress of compression and stretching and damaged.The well head and the production tree that are arranged on casing head can be not up and down because of expanding with heat and contract with cold, always in stable state; The bottom design of upper flange has the lower ear plate coordinating with hanger, this lower ear plate degree of depth is longer, and when can meet hanger and upper flange and form effective metal sealing, also portion moves up and down within it, thereby absorbed the power of sleeve pipe because expanding with heat and contract with cold and forming, guaranteed the safety of casing head and well head.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of hanger;
Accompanying drawing 3 is the local structure for amplifying schematic diagrames in A of the present utility model place;
In upper figure: upper flange 1, sealing ring 2, housing 3, high temperature pressure table 4, stop valve 5, end cap 6, plug 7, thermal recovery gate valve 8, gasket ring 9, hanger 10, sleeve pipe 11, joint shoulder a, nipple b, blind hole c, slurry channel d.
The specific embodiment
1-3 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises upper flange 1, sealing ring 2, housing 3, high temperature pressure table 4, stop valve 5, end cap 6, plug 7, thermal recovery gate valve 8, gasket ring 9, hanger 10, sleeve pipe 11, housing 3 tops are bolted upper flange 1, between housing 3 and upper flange 1, be provided with sealing ring 2, the bottom of described upper flange 1 is provided with lower ear plate 1.1, lower ear plate 1.1 on upper flange 1 connects hanger 10, the both sides of housing 3 are provided with test interface, one end test interface wherein connects end cap 6, described end cap 6 is provided with stop valve 5, stop valve 5 connects high temperature pressure table 4, other end test interface connects thermal recovery gate valve 8 by gasket ring 9, the end of thermal recovery gate valve 8 is provided with plug 7, hanger 10 splicing sleeves 11.
Lower ear plate 1.1 is wherein provided with interior shoulder, and one end of described hanger 10 is provided with the joint shoulder a matching with interior shoulder on lower ear plate 1.1, and the other end of hanger 10 is provided with the nipple b being connected with sleeve pipe 11.
Joint shoulder a inside is wherein provided with the blind hole c of perforate lower end, top sealing, and blind hole c can effectively eliminate the stress that sleeve pipe forms because expanding with heat and contract with cold.
The nipple b of hanger end is wherein provided with slurry channel d, the anti-high demand of mud in drilling well and well cementing process, and hanger lower outer diameter has designed can pass through some slurry channel d of mud.
Operating principle:
When by thermal production well mouth during toward shaft bottom steam injection, be connected the temperature of casing head with well head also can be along with rising, sleeve pipe can rise long, hanger can up move in housing, effectively eliminate the stress that sleeve pipe forms because expanding with heat and contract with cold, the telescopic design of hanger both can be hung thermal recovery sleeve pipe, requirement that again can satisfied temperature wide variation, the casing threads on upper flange top can connect thermal production well mouth, when temperature raises, the thermal production well mouth that is arranged on top moves on can be along with the rising of sleeve pipe, guaranteed the work that thermal production well mouth can be stable, the bottom design of upper flange has the lower ear plate coordinating with hanger, this lower ear plate degree of depth is longer, when can meet hanger and upper flange and form effective metal sealing, also portion moves up and down within it, thereby absorbed the power of sleeve pipe because expanding with heat and contract with cold and forming, guaranteed the safety of casing head and well head.
The beneficial effects of the utility model are: reasonable in design, and easy to install, for the reliable exploitation of thick oil thermal extraction provides safety guarantee.When we carry out high temperature and high pressure steam while handling up to thick oil thermal extraction, sleeve pipe there will be the phenomenon of extending and shortening because expanding with heat and contract with cold, extension type thermal extraction casing head is well positioned to meet this special operation condition, and sleeve pipe and casing head have been avoided occurring the stress of compression and stretching and damaged.The well head and the production tree that are arranged on casing head can be not up and down because of expanding with heat and contract with cold, always in stable state; The bottom design of upper flange has the lower ear plate coordinating with hanger, this lower ear plate degree of depth is longer, and when can meet hanger and upper flange and form effective metal sealing, also portion moves up and down within it, thereby absorbed the power of sleeve pipe because expanding with heat and contract with cold and forming, guaranteed the safety of casing head and well head.
Claims (4)
1. an extension type thermal extraction casing head device, it is characterized in that: comprise upper flange (1), sealing ring (2), housing (3), high temperature pressure table (4), stop valve (5), end cap (6), plug (7), thermal recovery gate valve (8), gasket ring (9), hanger (10), sleeve pipe (11), housing (3) top is bolted upper flange (1), between housing (3) and upper flange (1), be provided with sealing ring (2), the bottom of described upper flange (1) is provided with lower ear plate (1.1), lower ear plate (1.1) on upper flange (1) connects hanger (10), the both sides of housing (3) are provided with test interface, one end test interface wherein connects end cap (6), described end cap (6) is provided with stop valve (5), stop valve (5) connects high temperature pressure table (4), other end test interface connects thermal recovery gate valve (8) by gasket ring (9), the end of thermal recovery gate valve (8) is provided with plug (7), hanger (10) splicing sleeve (11).
2. extension type thermal extraction casing head device according to claim 1, it is characterized in that: described lower ear plate (1.1) is provided with interior shoulder, one end of described hanger (10) is provided with the joint shoulder (a) matching with interior shoulder on lower ear plate (1.1), and the other end of hanger (10) is provided with the nipple (b) being connected with sleeve pipe (11).
3. extension type thermal extraction casing head device according to claim 2, is characterized in that: described joint shoulder (a) inside is provided with the blind hole (c) of perforate lower end, top sealing.
4. extension type thermal extraction casing head device according to claim 2, is characterized in that: the nipple (b) of described hanger end is provided with slurry channel (d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181691.5U CN203856443U (en) | 2014-04-15 | 2014-04-15 | Telescopic thermal recovery casing head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181691.5U CN203856443U (en) | 2014-04-15 | 2014-04-15 | Telescopic thermal recovery casing head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856443U true CN203856443U (en) | 2014-10-01 |
Family
ID=51606305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420181691.5U Expired - Fee Related CN203856443U (en) | 2014-04-15 | 2014-04-15 | Telescopic thermal recovery casing head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856443U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587282A (en) * | 2016-01-28 | 2016-05-18 | 太仓市高泰机械有限公司 | Casing head for thermal recovery of thick oil |
| CN112031695A (en) * | 2020-11-05 | 2020-12-04 | 胜利油田胜机石油装备有限公司 | Gas production wellhead device and gas production well |
| CN114876399A (en) * | 2022-06-02 | 2022-08-09 | 盐城宝通机械科技有限公司 | Dabber formula casing hanger convenient to maintain |
-
2014
- 2014-04-15 CN CN201420181691.5U patent/CN203856443U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587282A (en) * | 2016-01-28 | 2016-05-18 | 太仓市高泰机械有限公司 | Casing head for thermal recovery of thick oil |
| CN112031695A (en) * | 2020-11-05 | 2020-12-04 | 胜利油田胜机石油装备有限公司 | Gas production wellhead device and gas production well |
| CN112031695B (en) * | 2020-11-05 | 2021-01-08 | 胜利油田胜机石油装备有限公司 | Gas production wellhead device and gas production well |
| CN114876399A (en) * | 2022-06-02 | 2022-08-09 | 盐城宝通机械科技有限公司 | Dabber formula casing hanger convenient to maintain |
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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: 20141001 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |