CN2592857Y - Simple oil-recovery well head device - Google Patents
Simple oil-recovery well head device Download PDFInfo
- Publication number
- CN2592857Y CN2592857Y CN 03200163 CN03200163U CN2592857Y CN 2592857 Y CN2592857 Y CN 2592857Y CN 03200163 CN03200163 CN 03200163 CN 03200163 U CN03200163 U CN 03200163U CN 2592857 Y CN2592857 Y CN 2592857Y
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- CN
- China
- Prior art keywords
- well head
- utility
- model
- valve
- upper flange
- 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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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a simple oil production well head device mainly solving the problems of large volume of a well head, poor sealing performance, and easy fracture at the time of flat type short connection. The utility model is characterized in that an upper flange (4) is directly correspondingly connected with a lower flange (7) in which a tubing hanger (6) is arranged; the upper flange and the lower flange (4, 7) respectively fix valves (2, 3) and then are connected with a valve (1) and a pipeline respectively through a tee (5). The utility model has the advantages of simple structure, favorable sealing performance, and high strength.
Description
Technical field:
The utility model relates to the used wellhead assembly of oil field oil recovery, especially simple and easy wellhead for production.
Background technology:
At present in recovering the oil in the oil field, production wellhead is made up of big or small four-way, valve and pipeline mostly, in order to control subsurface pressure and output crude oil, water pipeline with petroleum pipeline and input is connected on the ground, reach the output of crude oil, the input of watering, simultaneously for oil pumper provides and the oil well pump connector, and provide the operation mouth for operation.And present well head makes that because of big four, little four-way are arranged the well head volume is big, and the jackscrew pressure cap poor sealing performance on the big four, maintenance difficulty increases, causing cost to raise, be to link to each other with tubing hanger by screw thread because of the flat pipe nipple simultaneously, and the flat short circuit is tubing processing, wall approaches easy fracture, make oil pipe come off easily, cause stopping production, influence ordinary production.As seen present shaft collar exists that volume is big, poor sealing performance, flat pipe nipple easy fracture, maintenance difficulty are big, the deficiency that cost is high.
The utility model content:
The deficiency of, poor sealing performance big, flat pipe nipple easy fracture for the volume that overcomes existing well head, the utility model provides a kind of simple and easy wellhead for production, and that this wellhead assembly has is simple in structure, good seal performance, advantages of high strength.
The invention for solving the technical problem can reach by following technical solution: this wellhead assembly comprises valve, upper flange, upper flange is directly corresponding to connect the lower flange that is built-in with tubing hanger, and upper flange is connected valve and pipeline by threeway respectively after the fixed valve respectively again with lower flange.
The utility model is compared with background technology has following beneficial effect: the directly corresponding lower flange that is built-in with tubing hanger that connects of the upper flange of this wellhead assembly, the big four of existing well head, little four-way have been cancelled, and that flat pipe nipple and tubing hanger form is integrated, increased intensity, greatly reduce production and maintenance cost and alleviated weight, so have simple in structure, good seal performance, advantages of high strength.
Description of drawings:
Fig. 1 is the utility model topology view.
1-valve among the figure, 2-valve, 3-valve, 4-upper flange, 5-threeway, 6-tubing hanger, 7-lower flange.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, this wellhead assembly comprises valve (1,2,3), upper flange 4, upper flange 4 is directly corresponding to connect lower flanges 7, and is built-in with tubing hanger 6 at lower flange 7, the big four that has replaced existing well head, tubing hanger 6 is integrated with the flat pipe nipple, and function is constant, connect valve 1 and pipeline by threeway 5 respectively again after the fixed valve (2,3) respectively and go up lower flange (4,7), cancelled little four-way, make that the well head overall volume is little, simple in structure, cost also reduces relatively greatly.
During actual the use, will link to each other with sleeve pipe by the hole of lower flange 7 lower ends, tubing hanger 6 links to each other with oil pipe, the clip pipe nipple links to each other with petroleum pipeline, female branch tee links to each other with the pipeline that waters, and sucker rod enters oil pipe in the band valve blowout prevention box and links to each other with oil well pump, can normally use.
Claims (1)
1, simple and easy wellhead for production, comprise valve (1,2,3), upper flange (4), it is characterized in that: the directly corresponding lower flange (7) that is built-in with tubing hanger (6) that connects of upper flange (4), connect valve (1) and pipeline by threeway (5) respectively again after the fixed valve (2,3) respectively and go up lower flange (4,7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200163 CN2592857Y (en) | 2003-01-06 | 2003-01-06 | Simple oil-recovery well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200163 CN2592857Y (en) | 2003-01-06 | 2003-01-06 | Simple oil-recovery well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2592857Y true CN2592857Y (en) | 2003-12-17 |
Family
ID=33752740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03200163 Expired - Fee Related CN2592857Y (en) | 2003-01-06 | 2003-01-06 | Simple oil-recovery well head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2592857Y (en) |
-
2003
- 2003-01-06 CN CN 03200163 patent/CN2592857Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |