CN202249888U - Device for preventing oil pipe from ejection during blowout - Google Patents
Device for preventing oil pipe from ejection during blowout Download PDFInfo
- Publication number
- CN202249888U CN202249888U CN2011202943577U CN201120294357U CN202249888U CN 202249888 U CN202249888 U CN 202249888U CN 2011202943577 U CN2011202943577 U CN 2011202943577U CN 201120294357 U CN201120294357 U CN 201120294357U CN 202249888 U CN202249888 U CN 202249888U
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- CN
- China
- Prior art keywords
- valve
- oil pipe
- tooth sheet
- slip tooth
- blowout
- 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 device for preventing an oil pipe from ejection during blowout. The device is characterized in that swing arms are arranged on the two sides of a body; the swing arms are connected with lower links; a valve is arranged on the body; sliding slopes are arranged on the inner walls of the body and the valve; sliding tooth sheets are arranged in the sliding slopes; and a jamming handle is arranged on the outer surface of the valve. The device has the following advantages and effects that: during blowout, when the oil pipe rises, the device can quickly control the rising oil pipe and ensure the constructors at the mouth of the well to smoothly install the plug valve, meanwhile, when being used for sealing the mouth of the well after normal construction, the plug valve can play a role in preventing ejection; and the device is light in weight, has high pipe blocking speed and a wide application range and is convenient to operate.
Description
Technical field
The utility model relates to a kind of card pipe unit, relates in particular to ejection device on the anti-oil pipe of a kind of blowout, is particularly useful for oilfield.
Background technology
At the oil-field thick-oil block, the method that mining type adopts steam injection to handle up more.Cause subsurface pressure to increase after the steam injection.On ground during the light maintenance operation owing to multiple reason, can cause in the lower tubular column process strata pressure greater than the sleeve pipe liquid column hydrostatic pressure.At this moment will cause the well head overflow and the well head gas blowby at initial stage.If the well head operating personnel fail to find and effectively control in the very first time, along with the steam of ejection or the increasing of fluid flow, when the ejected matter uplift force greater than well in during the weight of tubing string, the phenomenon of scurrying on OIH pipe or the instlated tubular will take place.After scurrying certain altitude on the oil pipe, the well head constructor just can't rob the dress plug valve.At this moment will cause well head out of control.The steam of ejection can carry substantial oil ejection well head, its consequence entail dangers to personal security, can cause the damage of large tracts of land environment pollution and equipment.
Summary of the invention
The utility model provides ejection device on the anti-oil pipe of a kind of blowout to the problem that exists in the above-mentioned prior art, solved when scurrying on the oil pipe in the prior art, and easy problem out of control, and also safe.
To achieve these goals, the technical scheme of the utility model is following:
The both sides of body are provided with swing arm, and swing arm is connected with lower link; Body is provided with valve, and the inwall of body and valve is equipped with slide ramp, and slip tooth sheet is arranged in the slide ramp; The external surface of valve is provided with clamping lever.
Described slide ramp is from the bottom to top tightens up the formula setting.
Described slip tooth sheet comprises the slip tooth sheet I that is arranged on the valve inwall, be arranged on the slip tooth sheet II of inner body wall and valve symmetry and be arranged on inner body wall both sides slip tooth sheet III and the slip tooth sheet IV corresponding with swing arm.
Described clamping lever is provided with locking device.
Described valve is provided with the valve lock pin.
The utility model has the advantages of as follows:
1, through said structure, when blowout took place, during the situation of on oil pipe occurring, scurrying, the oil pipe of can quick control living in to scurry guaranteed that the well head constructor can rob the dress plug valve smoothly.Again through anti-pressing mode on the oil pipe of scurrying push back well head, close preventer closed casing space, cut-out tap valve closure oil pipe space prevents blowout out of control.Simultaneously, during with plug valve sealing well head, the utility model also can be used as the anti-top function that goes up and uses behind the normal construction.
2, in light weight, card pipe speed is fast.Be convenient to operation, two people cooperate can clamp oil pipe fast, prevents that oil pipe is up.
3, rational in infrastructure, working stability adopts the structure of slip tooth sheet, on to scurry bigger its clamping force of oil pipe strength just big more.
4, be convenient to operation, can guarantee the coupling of its working size and oil pipe or instlated tubular size according to the sheet of more growing permanent teeth fast of tubing string size in the well.
5, simple in structure, intensity is big, can bear big pulling force.
6, maintaining is simple, can be through grease nipple filling butter, and lubricated each rotary part, the flexibility when strengthening application life greatly and using, the scope of application is wide, is suitable for applying.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure, 1. body, 2. handrail, 3. swing arm, 4. lower link, 5. arm shaft, 6, valve, 7, slide ramp, 8, slip tooth sheet, 9, clamping lever, 10, locking device, 11, the valve handle, 12, the valve lock pin.
The specific embodiment
With reference to accompanying drawing,, the utility model is described in detail as follows in conjunction with specific embodiment.
Embodiment
As shown in Figure 1, the both sides of body 1 are provided with swing arm 3, and swing arm 3 is connected with lower link 4; Body 1 is provided with valve 6, and valve 6 is provided with valve lock pin 12; The inwall of body 1 and valve 6 is equipped with slide ramp 7, and slide ramp 7 is from the bottom to top tightens up the formula setting; Slip tooth sheet 8 is arranged in the slide ramp 7, and slip tooth sheet comprises the slip tooth sheet I that is arranged on the valve inwall, be arranged on the slip tooth sheet II of inner body wall and valve symmetry and be arranged on inner body wall both sides slip tooth sheet III and the slip tooth sheet IV corresponding with swing arm; The external surface of valve 6 is provided with clamping lever 9, and clamping lever 9 is provided with locking device 10.
The operating principle and the course of work of the utility model are following.
When blowout takes place, when up phenomenon appears in OIH pipe or instlated tubular, at first the lower link of body both sides is tipped in the already installed clamp in preventer bottom.Body is buckled in outside the up oil pipe tube wall.Buckle well valve, the clamping lever of pulling valve one side makes the slip tooth sheet I on the valve inwall slide ramp up.Slip tooth sheet I along domatic up after, cause slip tooth sheet I and slip tooth sheet II reduced distances.Slip tooth sheet I and oil pipe produce friction, and further drive slip tooth sheet II is up.Behind the pulling clamping lever, handlebar in different positions, has guaranteed that slip tooth sheet I and slip tooth sheet II have clamping force all the time through locking device meeting automatic locking, moves thereby drive on the body.Owing to the drop-down effect of body both sides lower link, lower link pulling swing arm outer end is that the center is descending along arm shaft simultaneously.The inner of swing arm simultaneously is that the center is up with the arm shaft, and the slip tooth sheet III and the slip tooth sheet IV that promote the swing arm both sides are up along the slope.At this moment slide tooth sheet I, slip tooth sheet II combines slip tooth sheet III and slip tooth sheet IV to clamp oil pipe or instlated tubular simultaneously.At this moment oil pipe stops up.
The utility model protection domain does not receive the restriction of specific embodiment, is as the criterion with claim.
Claims (5)
1. ejection device on the anti-oil pipe of blowout is characterized in that the both sides of body are provided with swing arm, and swing arm is connected with lower link; Body is provided with valve, and the inwall of body and valve is equipped with slide ramp, and slip tooth sheet is arranged in the slide ramp; The external surface of valve is provided with clamping lever.
2. ejection device on the anti-oil pipe of blowout according to claim 1 is characterized in that described slide ramp is from the bottom to top to tighten up the formula setting.
3. ejection device on the anti-oil pipe of blowout according to claim 1 is characterized in that described slip tooth sheet comprises the slip tooth sheet I that is arranged on the valve inwall, is arranged on the symmetrical slip tooth sheet II of inner body wall and valve and is arranged on inner body wall both sides slip tooth sheet III and the slip tooth sheet IV corresponding with swing arm.
4. ejection device on the anti-oil pipe of blowout according to claim 1 is characterized in that described clamping lever is provided with locking device.
5. ejection device on the anti-oil pipe of blowout according to claim 1 is characterized in that described valve is provided with the valve lock pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202943577U CN202249888U (en) | 2011-08-15 | 2011-08-15 | Device for preventing oil pipe from ejection during blowout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202943577U CN202249888U (en) | 2011-08-15 | 2011-08-15 | Device for preventing oil pipe from ejection during blowout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249888U true CN202249888U (en) | 2012-05-30 |
Family
ID=46111147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202943577U Expired - Fee Related CN202249888U (en) | 2011-08-15 | 2011-08-15 | Device for preventing oil pipe from ejection during blowout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120990A (en) * | 2013-04-24 | 2014-10-29 | 成都科盛石油科技有限公司 | Solid-positioning plug valve fixing mechanism |
-
2011
- 2011-08-15 CN CN2011202943577U patent/CN202249888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120990A (en) * | 2013-04-24 | 2014-10-29 | 成都科盛石油科技有限公司 | Solid-positioning plug valve fixing mechanism |
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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: 20120530 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |