CN2731076Y - Well head device for oil production - Google Patents
Well head device for oil production Download PDFInfo
- Publication number
- CN2731076Y CN2731076Y CN 200420063474 CN200420063474U CN2731076Y CN 2731076 Y CN2731076 Y CN 2731076Y CN 200420063474 CN200420063474 CN 200420063474 CN 200420063474 U CN200420063474 U CN 200420063474U CN 2731076 Y CN2731076 Y CN 2731076Y
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- CN
- China
- Prior art keywords
- oil
- well head
- head device
- oil production
- wellhead
- 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 provides a well head device for oil production which solves the problems that the present well head device for oil production has large volume and strong labor intensity. The well head device for oil production is characterized in that a lower flange (9) is connected with an upper flange (12) on the upper end of the oil sleeve tube head (3) by a bolt (11) and a nut (8). Four holes (13, 14, 15, and 16) are symmetrically arranged on the casing of the oil sleeve tube head (3) along the central line. The well head device for oil production has compact structure and small volume. When operated, the well head device for oil production has small labor intensity and short operation time.
Description
Technical field:
The utility model relates to the used ground installation of oil well, belongs to wellhead for production.
Background technology:
At present, widely used wellhead assembly is conventional wellhead for production on the oil well, and this wellhead assembly is the control head when being used for terrestrial facies oil recovery (flowing well, rod-pumped well), water injection well and oil well operation.It has pressure-bearing height, characteristics such as easy to operate.It both can be used for recovering the oil, and can be used for underground work such as water filling, pressure break, acidifying, well-flushing again.But this well head also exists structure compact inadequately, and volume is bigger, need move the shortcoming of the petroleum pipeline on ground during operation, and working strength of workers is big.
Summary of the invention:
In order to overcome the deficiency that existing wellhead for production volume is big, labor strength is big, the utility model provides a kind of wellhead for production, this wellhead for production compact conformation, volume is little, and when operation, need not move the petroleum pipeline on ground, working strength of workers is little, and the activity duration is short.
Technical solution adopted in the utility model is: this wellhead for production comprises sleeve pipe gate valve, oil pipe gate valve, main valve, upper flange, and upper flange is connected with the flange of oil jacket tube head body upper end by bolt and nut.
Above-mentioned said oil jacket tube head body has four holes in its housing upper edge center line symmetry.
The beneficial effects of the utility model are: because this wellhead for production, adopted sleeve pipe gate valve and oil pipe gate valve simultaneously with the side outlet ways of connecting of oil jacket tube head body, and main valve plays the effect of pumping valve simultaneously, make the structure of this device become compact, and volume is little.When playing the lower tubular column operation, as long as unload bolt on the upper flange, upper flange mentioned can carry out oil well and play the lower tubular column operation, need not move the ground oil pipeline, reduced working strength of workers, saved the activity duration.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
1-tubing string among the figure, 2-oil, cover annular space, 3-oil jacket tube head body, 4-sleeve pipe gate valve, 5-sleeve pipe pipeline, 6-petroleum pipeline, 7-oil pipe gate valve, 8-nut, 9-upper flange, 10-main valve, 11-bolt, 12-flange, 13,14,15, the 16-hole.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in FIG., a kind of wellhead for production, comprise sleeve pipe gate valve 4, oil pipe gate valve 7, main valve 10, lower flange 9, lower flange 9 is connected with the upper flange 12 of oil jacket tube head body 3 upper ends by bolt 11 and nut 8, and the center line symmetry has four holes (13 in the housing upper edge of oil jacket tube head body 3,14,15,16).
In actual use, the lower end of oil jacket tube head body 3 is connected by casing flange with the sleeve pipe of rod-pumped well, and the inlet of oil pipe gate valve 7 is connected with hole 13, and outlet is connected with petroleum pipeline 6; The inlet of sleeve pipe gate valve 4 is connected with hole 14, and outlet is connected with sleeve pipe pipeline 5.During ordinary production, the oil that oil well pump is extracted out arrives the oil pipe gate valve 7 on oil jacket tube head body 3 tops through tubing string 1, and enters ground petroleum pipeline 6.And the gas that produces in the stratum through oil, casing annulus 2, enters sleeve pipe vent valve on the sleeve pipe pipeline 5 from the sleeve pipe gate valve 4 of oil jacket tube head body 3 bottoms, and the sleeve pipe vent valve can be realized the level pressure venting.When underground work such as needs pressure break, acidifying, well-flushing, can realize by sleeve pipe gate valve 4.And when playing the lower tubular column operation, as long as unload bolt 11 and nut 8 on the upper flange 9, upper flange 9 and main valve 10 mentioned can carry out oil well and play the lower tubular column operation, do not need the petroleum pipeline 6 on moving ground, easy to operate.This wellhead for production, compact conformation, and volume is little, and when operation, working strength of workers is little, and the activity duration is short.
Claims (2)
1, a kind of wellhead for production comprises sleeve pipe gate valve (4), oil pipe gate valve (7), main valve (10), upper flange (9), it is characterized in that: lower flange (9) is connected with the flange (12) of oil jacket tube head body (3) upper end by bolt (11) and nut (8).
2, wellhead for production according to claim 1 is characterized in that: have four holes (13,14,15,16) in the housing upper edge of oil jacket tube head body (3) center line symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063474 CN2731076Y (en) | 2004-09-27 | 2004-09-27 | Well head device for oil production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063474 CN2731076Y (en) | 2004-09-27 | 2004-09-27 | Well head device for oil production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731076Y true CN2731076Y (en) | 2005-10-05 |
Family
ID=35051413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063474 Expired - Fee Related CN2731076Y (en) | 2004-09-27 | 2004-09-27 | Well head device for oil production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731076Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089187A (en) * | 2012-12-26 | 2013-05-08 | 江苏宏泰石化机械有限公司 | Well head device with combined sealing, double-tube gas injection and remote control |
-
2004
- 2004-09-27 CN CN 200420063474 patent/CN2731076Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089187A (en) * | 2012-12-26 | 2013-05-08 | 江苏宏泰石化机械有限公司 | Well head device with combined sealing, double-tube gas injection and remote control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20091027 |