CN204024571U - high-pressure gas well casing head - Google Patents
high-pressure gas well casing head Download PDFInfo
- Publication number
- CN204024571U CN204024571U CN201420453766.0U CN201420453766U CN204024571U CN 204024571 U CN204024571 U CN 204024571U CN 201420453766 U CN201420453766 U CN 201420453766U CN 204024571 U CN204024571 U CN 204024571U
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- CN
- China
- Prior art keywords
- ring
- flange
- mandrel
- sealing ring
- pressure gas
- 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 relates to a kind of oil field shaft mouth casing head, particularly a kind of high-pressure gas well casing head.The mud baffle ring of scraping of this device puts into flange body, seal washer is put in be scraped on mud baffle ring, upper press ring is placed on seal washer, embed the mandrel seat of mud-scraping ring on upper press ring, between mandrel and crossover flange, be provided with wedge metal sealing ring, crossover flange is by installing FS sealing ring and stem seal.The utility model achieves avoids gas leakage, leakage of oil, long service life, safety factor is high, installation sealing ring is simple and convenient, clean tube wall can be played, eliminate the effect of greasy dirt, ensure high temperature resistant, high pressure, meet sleeve pipe and lift prestressed requirement, thus meet the Production requirement of high-pressure gas well, save the engineering time.
Description
Technical field:
The utility model relates to a kind of oil field shaft mouth casing head, particularly a kind of high-pressure gas well casing head.
Background technology:
Casing head is the well head completion system that in oil-drilling field, every mouthful of well must be installed.It is arranged on surface pipe post upper end, is used for hanging the wellhead assembly parts of each layer sleeve pipe beyond surface pipe and Sealed casing pipe annular space.At present, because high-pressure gas well exists the common problem such as high pressure, high temperature, and existing casing head belongs to rubber seal mostly, very easily aging when high pressure-temperature, there is gas leakage, leakage of oil, the life-span is short, safety factor is low shortcoming; Meanwhile, existing BT sealing ring is installed complicated.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of high-pressure gas well casing head, the arrangement achieves and avoid gas leakage, leakage of oil, long service life, safety factor is high, installs sealing ring simple and convenient, can play clean tube wall, eliminate the effect of greasy dirt, ensure high temperature resistant, high pressure, meet sleeve pipe and lift prestressed requirement, thus meet the Production requirement of high-pressure gas well, save the engineering time.The sealing ring overcoming existing high-pressure gas well casing head is easily aging, there is gas leakage, leakage of oil, the life-span is short, safety factor is low shortcoming, and the deficiency of complexity installed by BT sealing ring.
Technical solution adopted in the utility model is: a kind of high-pressure gas well casing head, comprises crossover flange, mandrel, flange body and plug, and crossover flange and flange body are bolted, and mandrel is arranged on crossover flange and flange body is inner; Scrape mud baffle ring and put into flange body, seal washer is put in be scraped on mud baffle ring, and upper press ring is placed on seal washer, has embedded the mandrel seat of mud-scraping ring on upper press ring, between mandrel and crossover flange, be provided with wedge metal sealing ring, crossover flange is by installing FS sealing ring and stem seal.
The beneficial effects of the utility model are: the utility model is owing to have employed FS sealing ring and the sealing of wedge metal sealing ring, and thus have and avoid gas leakage, leakage of oil, long service life, safety factor is high, installs sealing ring advantage simply and easily; Owing to have employed mud-scraping ring, thus there is clean tube wall, eliminate the effect of greasy dirt; The utility model ensures high temperature resistant, high pressure, meets sleeve pipe and lifts prestressed requirement, thus meet the Production requirement of high-pressure gas well, saves the engineering time.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
As shown in Figure 1, a kind of high-pressure gas well casing head, comprise crossover flange 1, mandrel 2, flange body 4 and plug 5, crossover flange 1 is connected by bolt 3 with flange body 4, and mandrel 2 is arranged on crossover flange 1 and flange body 4 is inner; Scrape mud baffle ring 6 and put into flange body 4, seal washer 7 is put in be scraped on mud baffle ring 6, upper press ring 8 is placed on seal washer 7, embed the mandrel 2 of mud-scraping ring 9 on upper press ring 8, between mandrel 2 and crossover flange 1, be provided with wedge metal sealing ring 10, crossover flange 1 seals with mandrel 2 by installing FS sealing ring 11.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (1)
1. a high-pressure gas well casing head, comprise crossover flange (1), mandrel (2), flange body (4) and plug (5), crossover flange (1) is connected by bolt (3) with flange body (4), and mandrel (2) is arranged on crossover flange (1) and flange body (4) is inner; It is characterized in that: scrape mud baffle ring (6) and put into flange body (4), seal washer (7) is put in be scraped on mud baffle ring (6), upper press ring (8) is placed on seal washer (7), embed mandrel (2) seat of mud-scraping ring (9) on upper press ring (8), between mandrel (2) and crossover flange (1), be provided with wedge metal sealing ring (10), crossover flange (1) seals with mandrel (2) by installing FS sealing ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453766.0U CN204024571U (en) | 2014-08-12 | 2014-08-12 | high-pressure gas well casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453766.0U CN204024571U (en) | 2014-08-12 | 2014-08-12 | high-pressure gas well casing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024571U true CN204024571U (en) | 2014-12-17 |
Family
ID=52064455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453766.0U Expired - Fee Related CN204024571U (en) | 2014-08-12 | 2014-08-12 | high-pressure gas well casing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204024571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912512A (en) * | 2015-06-29 | 2015-09-16 | 中国海洋石油总公司 | Packing device for inserting pipe |
| CN108716377A (en) * | 2018-08-15 | 2018-10-30 | 杨福苗 | A kind of gas well device for plugging and gas well drilling equipment |
-
2014
- 2014-08-12 CN CN201420453766.0U patent/CN204024571U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912512A (en) * | 2015-06-29 | 2015-09-16 | 中国海洋石油总公司 | Packing device for inserting pipe |
| CN108716377A (en) * | 2018-08-15 | 2018-10-30 | 杨福苗 | A kind of gas well device for plugging and gas well drilling equipment |
| CN108716377B (en) * | 2018-08-15 | 2024-04-16 | 杨福苗 | Gas well plugging device and gas well drilling equipment |
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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: 20141217 Termination date: 20150812 |
|
| EXPY | Termination of patent right or utility model |