CN205012966U - Bailing well head device - Google Patents
Bailing well head device Download PDFInfo
- Publication number
- CN205012966U CN205012966U CN201520786006.6U CN201520786006U CN205012966U CN 205012966 U CN205012966 U CN 205012966U CN 201520786006 U CN201520786006 U CN 201520786006U CN 205012966 U CN205012966 U CN 205012966U
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- China
- Prior art keywords
- well
- valve
- well head
- bailing
- head
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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 utility model relates to a bailing well head device. The main oil field stripper well that has now of solving does not have conventional wellhead assembly, easily takes place crude oil blowout well head and lead to the fact the problem extravagant and polluted environment when the overpressure. Its characterized in that: a bailing well head device, includes casing (6), casing (6) bottom is fixed with connects short circuit (7), its characterized in that: casing (6) inside be fixed with disk seat (5), disk seat (5) upper portion are connected with valve body (3), and valve body (3) internal connection has valve rod (2), and valve rod (2) lower extreme is connected with valve head (4), and the lower extreme circular conical surface and disk seat (5) the hole circular conical surface of valve head (4) cooperate, be connected with the lubricator line on the lateral wall at casing (6) middle part. This bailing well head device can carry out pressure control and well head protection to the stripper well well head, avoids the oil well to add because of pressure and leads to well liquid blowout well head, avoids extravagant and the polluted environment.
Description
Technical field
The utility model relates to oilfield, is a kind of bailing wellhead assembly specifically.
Background technology
At present when low yield block carries out oil extraction, because oil well output is low, oil pumper cannot be adopted to pump continuously exploitation, ensure oil extraction amount for saving oil extraction cost simultaneously, generally manyly movable oil production equipment (as dredging vehicle etc.) can be adopted to carry out intermission mining method to stripper well.At these stripper wells, oil pumper, oil well pump and conventional wellhead assembly would not be installed like this, installation simple dust preventing (antitheft) lid mostly, prevent falling foreign materials away and drag for the normal mining operations of oily device, so sometimes, some oil well can make pressure increase because not exploiting for a long time, causing crude oil to spray well head causes crude oil to waste, and more seriously causes the comparatively serious problems such as environment pollution.For this reason, just need during some outlying district stripper well oil extractions a kind of with low cost, control head.
Summary of the invention
Conventional wellhead assembly is not had in order to overcome existing stripper well in oil field, the deficiency that crude oil ejection well head causes waste and contaminated environment is easily there is when pressure increase, the utility model provides a kind of bailing wellhead assembly, this bailing wellhead assembly can carry out Stress control and well head protection to stripper well well head, avoid oil well to cause because pressure increases well liquid to spray well head, avoid waste and contaminated environment.
The technical solution of the utility model is: a kind of bailing wellhead assembly, comprise housing, housing bottom is fixed with connection short circuit, described enclosure interior is fixed with valve seat, valve seat top is connected with valve body, valve inner is connected with valve rod, and valve rod lower end is connected with valve head, and the lower end taper seat of valve head matches with valve seat endoporus taper seat; The sidewall of described housing central section is connected with blowout prevention pipeline.
The utility model has following beneficial effect: owing to taking such scheme, this device is connected on the reserved casing coupling of well head, pressure release can be realized by rotation valve rod, thus effective pressure control and well head protection can be carried out to well head, sealing is reliable, avoid oil well cause because pressure increases well liquid spray well head, thus avoid waste crude oil and contaminated environment and structure is simple, pressure-bearing is high, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The antitheft helmet of 1-in figure, 2-valve rod, 3-valve body, 4-valve head, 5-valve seat, 6-housing, 7-connects short circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of bailing wellhead assembly, comprises housing 6, is fixed with and connects short circuit 7 bottom housing 6, connects bottom short circuit 7 and is processed with 5
1/
2sleeve external thread, is threadedly attached on the reserved casing coupling of well head.Described housing 6 inside is fixed with valve seat 5, and valve seat 5 welds with housing 6, and valve seat 5 top is connected with valve body 3, and valve body 3 outside is threaded with between housing 6.Valve body 3 internal whorl is connected with valve rod 2, and valve rod 2 lower end is connected with valve head 4, and the lower end taper seat of valve head 4 matches with valve seat 5 endoporus taper seat, sealing during the two contact.Valve body 3 top is fixed with antitheft helmet 1, and antitheft helmet 1 top has aperture, and one section of valve rod 2 upper end can be passed aperture, but valve rod 2 hypomere diameter is greater than hole diameter, cannot pass.Therefore valve rod 2 is covered on inside by antitheft helmet 1, can prevent non-working person from turning on valve rod 2 stolen.Sidewall in the middle part of described housing 6 has through hole, blowout prevention pipeline can be connected, correspondingly with it on valve body 3 sidewall also have through hole.
When this bailing wellhead assembly is installed, the casing threads this wellhead assembly being connected short circuit 7 bottom is connected with the casing short joint that well head is reserved, then dextrorotation rotating valve rod 2, and valve head 4 contacts with valve seat 5, closes stop valve, is arranged on oil well by this well head.Before bailing production, first housing 6 side outlet is connected by clip and blowout prevention pipeline, then valve rod 2 is rotated counterclockwise, after thoroughly borehole pressure having been discharged, dismounting blowout prevention pipeline, this bailing wellhead assembly is unloaded down from casing short joint simultaneously, install and specially drag for oily equipment and carry out normal bailing production.After bailing production, then this wellhead assembly is installed on oil well.
Claims (1)
1. a bailing wellhead assembly, comprise housing (6), housing (6) bottom is fixed with and connects short circuit (7), it is characterized in that: described housing (6) inside is fixed with valve seat (5), valve seat (5) top is connected with valve body (3), valve body (3) is internally connected with valve rod (2), and valve rod (2) lower end is connected with valve head (4), and the lower end taper seat of valve head (4) matches with valve seat (5) endoporus taper seat; The sidewall at described housing (6) middle part is connected with blowout prevention pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786006.6U CN205012966U (en) | 2015-10-12 | 2015-10-12 | Bailing well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786006.6U CN205012966U (en) | 2015-10-12 | 2015-10-12 | Bailing well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205012966U true CN205012966U (en) | 2016-02-03 |
Family
ID=55211575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520786006.6U Active CN205012966U (en) | 2015-10-12 | 2015-10-12 | Bailing well head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205012966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898314A (en) * | 2023-01-06 | 2023-04-04 | 通化易达石油化工设备制造有限公司 | Controllable pressure release anti-theft blowout preventer for oil gas well mouth |
-
2015
- 2015-10-12 CN CN201520786006.6U patent/CN205012966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898314A (en) * | 2023-01-06 | 2023-04-04 | 通化易达石油化工设备制造有限公司 | Controllable pressure release anti-theft blowout preventer for oil gas well mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |