CN102767347A - Bidirectional blowout preventing valve - Google Patents
Bidirectional blowout preventing valve Download PDFInfo
- Publication number
- CN102767347A CN102767347A CN201110115969XA CN201110115969A CN102767347A CN 102767347 A CN102767347 A CN 102767347A CN 201110115969X A CN201110115969X A CN 201110115969XA CN 201110115969 A CN201110115969 A CN 201110115969A CN 102767347 A CN102767347 A CN 102767347A
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- Prior art keywords
- valve
- base
- cavity
- blowout
- bowl
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- 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.)
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Abstract
The invention relates to a bidirectional blowout preventing valve, comprising a valve body with a hollow cavity inside; the side face of the valve body is provided with two rotating pins symmetrical about an axial line of the valve body; the tail end of each rotating pin is provided with a bowl-shaped ball valve stretched to the cavity, the bowl-shaped ball valve corresponds to an inner outline of the cavity; the upper and lower parts of the bowl-shaped ball valve at each side are respectively provided with an upper valve base and a lower valve base; the outsides of the upper valve base and the lower valve base are provided with springs, and the springs are arranged on a spring base in the cavity. The bilateral blowout preventing valve is new in structure, stable in performance, and simple and convenient to use. When the well blowout occurs, the blowout preventer closes an annular space of an oil sleeve, a bidirectional blowout preventing rotating plug valve can quickly close an oil tube passage, therefore, the occurance of the blowout accident is effectively stopped.
Description
Technical field
The present invention relates to the two-way blowout prevention valve of grease proofing blowout in a kind of oil field operation.
Background technology
In the well control operation of oil field, because strata pressure is big, the blowout phenomenon takes place in crude oil easily, and one causes the damage of relevant device, and two cause the waste of crude oil, simultaneously surrounding enviroment is polluted, and is badly in need of the two-way blowout prevention valve of a kind of well blowout preventing of invention.
Summary of the invention
The present invention is directed to above-mentioned defective, it is a kind of in the well control operation of oil field that purpose is to provide, and can effectively prevent the two-way blowout prevention valve of crude oil blowout phenomenon.
Technical scheme of the present invention is: the valve body of establishing cavity in the present invention includes; Two rotating dogs about the valve axis symmetry are established in the valve body side; The end of each rotating dog is established the bowl type ball valve that extends to cavity, and the interior profile of bowl type ball valve and cavity is corresponding, and the bowl type ball valve top and the bottom of every side are established upper valve base and lower valve base respectively; Spring is established in the outside of upper valve base and lower valve base, and spring is arranged on the spring base in the cavity.
Be provided with the O RunddichtringO between bowl type ball valve and upper valve base and the lower valve base.
Advantage of the present invention is: novel structure of the present invention, and stable performance, simple and easy to use.When blowout took place, preventer cut out oil casing annular space, and two-way blowout prevention plug valve can cut out the oil pipe passage rapidly, effectively prevents the generation of gas blowout accident.
Description of drawings
Fig. 1 is a structural representation of the present invention
1 is that valve body, 2 is that cavity, 3 is that spring base, 4 is that spring, 5 is that upper valve base, 6 is that O RunddichtringO, 7 is that a bowl type ball valve, 8 is that rotating dog, 9 is a lower valve base among the figure.
The specific embodiment
Establish the valve body 1 of cavity 2 in the present invention includes; Two rotating dogs 8 about valve body 1 axis symmetry are established in valve body 1 side, and the end of each rotating dog 8 is established the bowl type ball valve 7 that extends to cavity, and the interior profile of bowl type ball valve 7 and cavity is corresponding; Bowl type ball valve 7 top and the bottom of every side are established upper valve base 5 and lower valve base 9 respectively; Spring 4 is established in the outside of upper valve base 5 and lower valve base 9, and spring 4 is arranged on the spring base 3 in the cavity, is provided with O RunddichtringO 6 between bowl type ball valve 7 and upper valve base 5 and the lower valve base 9.
The present invention is open in usual at ordinary times, when blowout takes place, closes two-way blowout prevention plug valve, can close the oil pipe passage rapidly, and preventer cuts out oil casing annular space, effectively prevents the generation of gas blowout accident.
In the well control operation, hose when high pressure pipe joint damages, is closed this device, can carry out safe replacing.
Claims (2)
1. two-way blowout prevention valve is characterized in that, establishes the valve body of cavity in comprising; Two rotating dogs about the valve axis symmetry are established in the valve body side; The end of each rotating dog is established the bowl type ball valve that extends to cavity, and the interior profile of bowl type ball valve and cavity is corresponding, and the bowl type ball valve top and the bottom of every side are established upper valve base and lower valve base respectively; Spring is established in the outside of upper valve base and lower valve base, and spring is arranged on the spring base in the cavity.
2. two-way blowout prevention valve according to claim 1 is characterized in that, is provided with the O RunddichtringO between bowl type ball valve and upper valve base and the lower valve base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115969XA CN102767347A (en) | 2011-04-30 | 2011-04-30 | Bidirectional blowout preventing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115969XA CN102767347A (en) | 2011-04-30 | 2011-04-30 | Bidirectional blowout preventing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767347A true CN102767347A (en) | 2012-11-07 |
Family
ID=47094890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110115969XA Pending CN102767347A (en) | 2011-04-30 | 2011-04-30 | Bidirectional blowout preventing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767347A (en) |
-
2011
- 2011-04-30 CN CN201110115969XA patent/CN102767347A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |