CN201924882U - Blowout-prevention control valve - Google Patents
Blowout-prevention control valve Download PDFInfo
- Publication number
- CN201924882U CN201924882U CN2010206865708U CN201020686570U CN201924882U CN 201924882 U CN201924882 U CN 201924882U CN 2010206865708 U CN2010206865708 U CN 2010206865708U CN 201020686570 U CN201020686570 U CN 201020686570U CN 201924882 U CN201924882 U CN 201924882U
- Authority
- CN
- China
- Prior art keywords
- positioning seat
- valve body
- valve
- cock
- 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 - Lifetime
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Abstract
The utility model relates to a blowout-prevention control valve. A lower positioning seat is installed at the lower part of an inner cavity of a valve body; a spherical valve is seated on a lower positioning seat; an upper positioning seat is installed above the spherical valve; the lower end of the upper positioning seat is positioned on an inner shoulder of the valve body; a pressure cap is connected the upper part of the valve body and pressed on the upper positioning seat; a positioning seat sealing ring is installed between the upper positioning seat and the valve body; a blowout-prevention sealing ring is installed between the upper positioning seat and the spherical valve; a cock is installed on the side surface of the valve body; the front end of the cock is inserted in the spherical valve; a cock sealing ring is installed between the cock and the valve body; an inner through hole is formed on the spherical valve; and the inner shoulder is arranged at the lower part of the valve body. When the phenomenon of blowout happens, a big connector is installed at the upper part of the sucker rod and seated on the inner shoulder at the lower part of the valve body, a rod piece on the big connector is taken, the cock rotates to enable the spherical valve to rotate by 90 degrees, and the inner through hole (10) on the spherical valve is closed, so that the phenomenon of blowout can be avoided, the human injury accident is avoided, the loss of crude oil and the environmental pollution also can be avoided, and the blowout-prevention control valve has remarkable economic and social benefits.
Description
Technical field:
The rig tool of using when the utility model is the oil field pumping well operation is a kind of blowout prevention control valve.
Background technology:
When playing lower sucker rod, sucker rod is being carried by working rig, the sucker rod upper end is exposed on the wellhead assembly, and the sucker rod lower end is under wellhead assembly, if blowout takes place, sucker rod can not trip out fast, close wellhead assembly and can't seal oil well, well inner high voltage liquid stream will eject, and cause personnel's injury accident on the one hand, cause crude oil loss and environment pollution on the other hand, produce heavy economic losses.
Summary of the invention:
This purpose of this utility model is a kind of blowout prevention control valve of design, when in playing the lower sucker rod process blowout taking place, can close well head, prevents blowout.
This purpose of this utility model is achieved in that and comprises pressure cap, last positioning seat, the positioning seat sealing ring, the cock sealing ring, cock, ball valve, following positioning seat, valve body, the blowout prevention joint ring, following positioning seat is installed in the body cavity bottom, ball valve seat is on following positioning seat, install positioning seat on the ball valve, last positioning seat lower end is positioned on the interior shoulder of valve body, pressure cap is connected with valve body top, pressure cap is pushed down positioning seat, installing and locating seat sealing ring between last positioning seat and the valve body, the blowout prevention joint ring is installed between last positioning seat and the ball valve, cock is installed in side of valve body, the cock front end inserts in the ball valve, the cock sealing ring is installed between cock and the valve body, inner via hole is arranged on the ball valve, valve body lower portion has interior shoulder.
These the beneficial effects of the utility model are: when having blowout to show, a suspension joint will be installed on sucker rod top, with the suspension joint seat on the interior shoulder of valve body lower portion, take the rod member on the suspension joint away, the rotation cock makes the ball valve half-twist, and the inner via hole 10 on the ball valve is closed, can prevent blowout, avoid taking place personnel's injury accident, also can avoid crude oil loss and environment pollution, have remarkable economic efficiency and social benefit.
Description of drawings:
Fig. 1 is the assembling drawing of this utility model embodiment.
The specific embodiment:
Below in conjunction with Fig. 1 the embodiment of this utility model is described.
As seen from the figure, this the utility model comprises pressure cap 1, last positioning seat 2, positioning seat sealing ring 3, cock sealing ring 4, cock 5, ball valve 6, following positioning seat 7, valve body 8, blowout prevention joint ring 9, following positioning seat 7 is installed in valve body 8 inner chamber bottoms, 6 of ball valves are on positioning seat 7 down, install positioning seat 2 on the ball valve 6, last positioning seat 2 lower ends are positioned on the interior shoulder of valve body 8, pressure cap 1 is connected with valve body 8 tops, pressure cap 1 is pushed down positioning seat 2, installing and locating seat sealing ring 3 between last positioning seat 2 and the valve body 8, blowout prevention joint ring 9 is installed between last positioning seat 2 and the ball valve 6, sealing well head when ball valve 6 is closed, cock 5 is installed in the side of valve body 8, cock 5 front ends insert 6 li of ball valves, cock sealing ring 4 is installed between cock 5 and the valve body 8, inner via hole 10 is arranged on the ball valve 6, interior shoulder 11 is arranged at valve body 8 bottoms.Valve body 8 bottoms are clamp connection 12, are convenient to be connected with other accessory of well head.
When playing lower sucker rod, ball valve 6 is in state as shown in the figure, the oil well pump piston, rod collar all can be by the inner via hole 10 on the ball valve 6, can play lower sucker rod smoothly, when blowout shows, to a suspension joint be installed on the sucker rod top that also is not lowered to or proposes, suspension joint, external diameter greater than the aperture of aperture, valve body 8 bottom less than the inner via hole on the ball valve 6 (10), on the interior shoulder 11 of valve body 8 bottoms, the sucker rod under the suspension joint is suspended on the valve body 8 with the suspension joint seat, take the rod member on the suspension joint away, suspension joint is under the ball valve 6, does not hinder ball valve 6 rotations, rotates cock 5 then and makes ball valve 6 half-twists, inner via hole 10 on the ball valve 6 is closed, can prevent blowout, treat after pressure is put in kill-job that blowout is eliminated just can continue operation.
Claims (2)
1. blowout prevention control valve, comprise pressure cap (1), last positioning seat (2), positioning seat sealing ring (3), cock sealing ring (4), cock (5), ball valve (6), following positioning seat (7), valve body (8), blowout prevention joint ring (9), it is characterized in that: following positioning seat (7) is installed in valve body (8) inner chamber bottom, ball valve (6) seat is on following positioning seat (7), install positioning seat (2) on the ball valve (6), last positioning seat (2) lower end is positioned on the interior shoulder of valve body (8), pressure cap (1) is connected with valve body (8) top, pressure cap (1) is pushed down positioning seat (2), installing and locating seat sealing ring (3) between last positioning seat (2) and the valve body (8), blowout prevention joint ring (9) is installed between last positioning seat (2) and the ball valve (6), cock (5) is installed in the side of valve body (8), cock (5) front end inserts ball valve (6) lining, cock sealing ring (4) is installed between cock (5) and the valve body (8), inner via hole (10) is arranged on the ball valve (6), and interior shoulder (11) is arranged at valve body (8) bottom.
2. blowout prevention control valve according to claim 1 is characterized in that: valve body (8) bottom is clamp connection head (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206865708U CN201924882U (en) | 2010-12-16 | 2010-12-16 | Blowout-prevention control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206865708U CN201924882U (en) | 2010-12-16 | 2010-12-16 | Blowout-prevention control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924882U true CN201924882U (en) | 2011-08-10 |
Family
ID=44428740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206865708U Expired - Lifetime CN201924882U (en) | 2010-12-16 | 2010-12-16 | Blowout-prevention control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201924882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071908A (en) * | 2010-12-16 | 2011-05-25 | 张跃 | Anti-blowout control valve |
-
2010
- 2010-12-16 CN CN2010206865708U patent/CN201924882U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071908A (en) * | 2010-12-16 | 2011-05-25 | 张跃 | Anti-blowout control valve |
| CN102071908B (en) * | 2010-12-16 | 2013-05-08 | 张跃 | Anti-blowout control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20130508 |
|
| RGAV | Abandon patent right to avoid regrant |