CN101100932A - High-pressure water injection well head device - Google Patents
High-pressure water injection well head device Download PDFInfo
- Publication number
- CN101100932A CN101100932A CNA2007100160829A CN200710016082A CN101100932A CN 101100932 A CN101100932 A CN 101100932A CN A2007100160829 A CNA2007100160829 A CN A2007100160829A CN 200710016082 A CN200710016082 A CN 200710016082A CN 101100932 A CN101100932 A CN 101100932A
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- Prior art keywords
- way
- valve
- upper flange
- water injection
- pressure water
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Abstract
A well mouth device for high pressure affusion includes valve, connection ring, four-way pipe branch, four-way sleeve and up flange. The four-way sleeve contacts with the up flange in a conical surface and sealed in fasten center with reinforcing sealed with O shape sealing parts. Female thread in the up flange contacts with the pipe. The fasten bolt is immerge closed type with sealing cover. Locking ball are installed to the valve cap and cover. The connection ring is tied by four bolts.
Description
One, technical field
The present invention relates to be used for the wellhead assembly of oil exploitation, particularly a kind of high-pressure water injection well head device.
Two, background technology
Existing wellhead assembly is to be made of traditional gate valve, oil pipe four-way and four-way junction of casing.Four-way junction of casing mainly is made of hanger, four-way and upper flange, hanger connects oil pipe, fixes by four jackscrew adjustment, and oil pipe four-way central part is that two cylinders pass through structure for 90 ° mutually, valve all is a traditional structure, adopt traditional flange to connect, the shortcoming or the deficiency of existence are: 1. the processing top wire hole is relatively more difficult on the four-way junction of casing, complex operation, under the long-term high pressure water injection situation, screw thread corrodes easily, causes the jackscrew operating difficulties, and safety factor reduces simultaneously; 2. hanger complex structure, the cost height, processing and aboveground operation are all cumbersome; 3. upper flange and four-way junction of casing seal with steel ring, and processing request is tight, and aboveground task difficulty is big, and the location is difficult, and steel ring is easily damaged; 4. head valve all adopts flange to connect cost height, inconvenient operation; 5. valve is stolen easily tears open, repairs, and environment pollution is produced and caused in influence, also buries potential safety hazard for produce in the future.
Three, summary of the invention
The purpose of this invention is to provide a kind of improved high-pressure water injection well head device, shortcoming or deficiency that it can overcome effectively or avoid existing in the above-mentioned prior art, valve all adopts the novel valve of antitheft anti-reparation, valve and oil pipe four-way adopt clip to connect, oil pipe four-way core adopts square reinforcement, four-way junction of casing connects with the conical surface with upper flange, the seal sealing, oil pipe directly is connected with upper flange and can be by conical surface automatic aligning location, simplified structure, handled easily reduces cost.
High-pressure water injection well head device of the present invention comprises valve and jointing clip, oil pipe four-way, four-way junction of casing and upper flange, contacts for the conical surface between described four-way junction of casing and the upper flange, and centering sealing, by " O " shape seal enhanced leaktightness, upper flange is provided with internal thread, directly links to each other with oil pipe; Described valve fastening bolt is closed for immersing oneself in, and close gland is installed on the fastening bolt, and valve pressure cap and valve gap place are equipped with the locking steel ball; Described jointing clip is four bolt fastening structures.
Wherein, the conical surface tapering of described four-way junction of casing and upper flange is 3 °-85 °.Described oil pipe four-way main body is a square structure.
The present invention has following advantage compared with prior art:
1, adopts upper flange directly to be connected, reduced connector, reduced cost, improved safety factor, simplified operating procedure, eliminated the etching problem of jackscrew with oil pipe.
2, connect with the conical surface between four-way junction of casing and the upper flange, " O " shape seal enhanced leaktightness is adopted in the automatic aligning sealing, and sealing performance and bearing capacity have all obtained large increase, and assembly operation is more simple and easy to do.
3, clip adopts the reinforced structure of four bolts, and profile is the slick and sly structure of wholecircle arc, and is both artistic and practical, and valve all adopts this kind clip to connect, and has both guaranteed intensity, has simplified operation again, has reduced cost, and overall structure is also compact more.
4, adopted antitheft anti-reparation valve, antitheft and safety in production all is achieved.
5, oil pipe four-way core adopts square reinforcement, has increased intensity, has eliminated potential safety hazard.
Four, description of drawings
Fig. 1 is a kind of structural representation of the present invention,
Fig. 2 is by valve mechanism schematic diagram shown in Figure 1,
Fig. 3 is by yoke configurations schematic diagram shown in Figure 1,
Fig. 4 is the plan structure schematic diagram of Fig. 3.
Five, the specific embodiment
Consult Fig. 1-Fig. 4, a kind of high-pressure water injection well head device, comprise valve 6 and jointing clip 1, oil pipe four-way 2, four-way junction of casing 7 and upper flange 3, contact for the conical surface between four-way junction of casing 7 and the upper flange 3, and centering sealing, by " O " shape seal 4 enhanced leaktightness, upper flange 3 is provided with internal thread 5, directly links to each other with oil pipe; Valve 6 fastening bolts 61 are closed for immersing oneself in, and close gland 63 is installed on the fastening bolt 61, and valve pressure cap 67 is equipped with locking steel ball 65 with valve gap 62 places, and is locked mutually by lock(ing) bolt 66; Jointing clip 1 is four bolt fastening structures.
Four-way junction of casing 7 is 3 °-85 ° (being expressed as 45 ° among the figure) with the conical surface tapering of upper flange 3.Oil pipe four-way 2 main bodys are for strengthening the square structure of intensity.Steel nut 64 is installed in the pressure cap 67.
Claims (3)
1, a kind of high-pressure water injection well head device, comprise valve and jointing clip, oil pipe four-way, four-way junction of casing and upper flange, it is characterized in that contacting for the conical surface between described four-way junction of casing and the upper flange, and centering sealing, by " O " shape seal enhanced leaktightness, upper flange is provided with internal thread, directly links to each other with oil pipe; Described valve fastening bolt is closed for immersing oneself in, and close gland is installed on the fastening bolt, and valve pressure cap and valve gap place are equipped with the locking steel ball; Described jointing clip is four bolt fastening structures.
2, high-pressure water injection well head device according to claim 1, the conical surface tapering that it is characterized in that described four-way junction of casing and upper flange are 3 °-85 °.
3, high-pressure water injection well head device according to claim 1 is characterized in that described oil pipe four-way main body is a square structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100160829A CN101100932A (en) | 2007-06-15 | 2007-06-15 | High-pressure water injection well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100160829A CN101100932A (en) | 2007-06-15 | 2007-06-15 | High-pressure water injection well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101100932A true CN101100932A (en) | 2008-01-09 |
Family
ID=39035364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100160829A Pending CN101100932A (en) | 2007-06-15 | 2007-06-15 | High-pressure water injection well head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101100932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734033A (en) * | 2023-08-16 | 2023-09-12 | 三亚乾泰石油机械技术有限公司 | Antitheft device for long stop well mouth |
-
2007
- 2007-06-15 CN CNA2007100160829A patent/CN101100932A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116734033A (en) * | 2023-08-16 | 2023-09-12 | 三亚乾泰石油机械技术有限公司 | Antitheft device for long stop well mouth |
| CN116734033B (en) * | 2023-08-16 | 2023-10-20 | 三亚乾泰石油机械技术有限公司 | Antitheft device for long stop well mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080109 |