CN203430462U - Anti-backflow oil well Christmas tree - Google Patents
Anti-backflow oil well Christmas tree Download PDFInfo
- Publication number
- CN203430462U CN203430462U CN201320507904.4U CN201320507904U CN203430462U CN 203430462 U CN203430462 U CN 203430462U CN 201320507904 U CN201320507904 U CN 201320507904U CN 203430462 U CN203430462 U CN 203430462U
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- pipe
- seat
- oil well
- 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
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to the anti-backflow technology of an oil well head for an oil field and provides an anti-backflow oil well Christmas tree. The anti-backflow oil well Christmas tree solves the problem of crude oil backflow. The anti-backflow oil well Christmas tree is formed by connecting a large four-way pipe, a tee joint, a communication pipe, a production valve, an oil sleeve communication valve, a pressure return valve, a horizontal oil output pipe, a check valve, a valve seat, a valve cover, a ball seat, a steel ball and an oil output hole. The three-way pipe is arranged on the large four-way pipe of the oil well head, the production valve is arranged on the horizontal pipe connected with the tee joint, and the oil sleeve communication valve is arranged on an oil sleeve communication pipe. The horizontal oil output pipe is connected with a vertical pipe, the check valve is fixedly clamped on the vertical pipe, and the pressure return valve is arranged on a pressure return pipe. A valve cover is fixed to the valve seat of the check valve, the ball seat is fixed in the middle of the valve seat, the steel ball is arranged on the ball seat, and an oil output hole is formed in the top face of the valve cover.
Description
Technical field: the utility model relates to a kind of anti counter-flowing of oilfield well head technology, especially anti counter-flowing oil well production tree.
Background technology: in oilfield process, because oil well there will be oil pipe leakage, down-hole standing valve leakage problem, Field Force is difficult to timely discovery, and due to the effect of pressure differential, the crude oil in surface line will flow back in pit shaft, causes production loss.
Summary of the invention: the purpose of this utility model is to provide a kind of simple in structure, easy to operate anti counter-flowing oil well production tree, it has solved the difficult problem that crude oil flows backwards, the purpose of this utility model is to realize like this, it is to be formed by connecting by big four, threeway, communicating pipe, production valve, oil jacket connection valve, back pressure valve, horizontal flowline, flap valve, valve seat, valve bonnet, ball seat, steel ball, oil outlet, on well head big four, threeway is installed, on the horizontal tube that threeway connects, production valve is installed, at oil jacket, oil jacket was installed on communicating pipe and is communicated with valve.Horizontal flowline is connected with vertical tube; On vertical tube, by clip, be fixed wtih flap valve, back pressure valve is installed on back pressure pipe.On flap valve, valve bonnet is fixed on valve seat, in the centre of valve seat, is fixed wtih ball seat, has steel ball above ball seat, on the end face of valve bonnet, has oil outlet.
Method of work: crude oil is when well head forward flow, the effect of being stressed, liquid backs down flap valve, the normal inflow surface pipeline of crude oil enters gathering system, and when there is oil pipe leakage, the leakage of down-hole standing valve, crude oil is flow backwards by surface line, be subject to the steel ball Action of Gravity Field in flap valve, closure of check ring, the crude oil of surface line can not flow in pit shaft, thereby has avoided crude oil loss.
Meaning of the present utility model is: can prevent that oil well oil conduit from missing, standing valve leakage in down-hole is poured in down a chimney; Can reduce the polished rod problem that crude oil flows backwards when descending, improve oil well pump efficiency.
Accompanying drawing explanation: Fig. 1 is the structural representation of anti counter-flowing oil well production tree, in figure 1, big four 2, threeway 3, communicating pipe 4, produce valve 5, oil jacket is communicated with valve 6, back pressure valve 7, horizontal flowline 8, flap valve
Fig. 2 is the front view of flap valve, in figure 9, valve seat 10, valve bonnet 11, ball seat 12, steel ball
Fig. 3 is the top view of flap valve, in figure 9, valve seat 10, valve bonnet 13, oil outlet
The specific embodiment: embodiment 1, the utility model are to be formed by connecting by big four 1, threeway 2, communicating pipe 3, production valve 4, oil jacket connection valve 5, back pressure valve 6, horizontal flowline 7, flap valve 8, valve seat 9, valve bonnet 10, ball seat 11, steel ball 12, oil outlet 13, threeway 2 is installed on well head big four 1, on the horizontal tube that threeway 2 connects, be installed with and produce valve 4, at oil jacket, oil jacket was installed on communicating pipe and is communicated with valve 5.
Embodiment 2, horizontal flowline 7 are connected with vertical tube; On vertical tube, by clip, be fixed wtih flap valve 8, back pressure valve 6 is installed on back pressure pipe.
Embodiment 3, on flap valve 8, valve bonnet 10 is fixed on valve seat 9, in the centre of valve seat 9, is fixed wtih ball seat 11, ball seat 11 has steel ball 12 above, has oil outlet 13 on the end face of valve bonnet 10.
Claims (3)
1. anti counter-flowing oil well production tree, it is to be formed by connecting by big four (1), threeway (2), communicating pipe (3), production valve (4), oil jacket connection valve (5), back pressure valve (6), horizontal flowline (7), flap valve (8), valve seat (9), valve bonnet (10), ball seat (11), steel ball (12), oil outlet (13), it is characterized in that: threeway (2) is installed on well head big four (1), on the horizontal tube that threeway (2) connects, be installed with and produce valve (4), at oil jacket, oil jacket was installed on communicating pipe and is communicated with valve (5).
2. anti counter-flowing oil well production tree according to claim 1, is characterized in that: horizontal flowline (7) is connected with vertical tube; On vertical tube, by clip, be fixed wtih flap valve (8), back pressure valve (6) is installed on back pressure pipe.
3. anti counter-flowing oil well production tree according to claim 1, it is characterized in that: on flap valve (8), valve bonnet (10) is fixed on valve seat (9), middle set ball seat (11) at valve seat (9), ball seat (11) has steel ball (12) above, has oil outlet (13) on the end face of valve bonnet (10).
?
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507904.4U CN203430462U (en) | 2013-08-20 | 2013-08-20 | Anti-backflow oil well Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507904.4U CN203430462U (en) | 2013-08-20 | 2013-08-20 | Anti-backflow oil well Christmas tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430462U true CN203430462U (en) | 2014-02-12 |
Family
ID=50059507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320507904.4U Expired - Fee Related CN203430462U (en) | 2013-08-20 | 2013-08-20 | Anti-backflow oil well Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430462U (en) |
-
2013
- 2013-08-20 CN CN201320507904.4U patent/CN203430462U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202031563U (en) | Wellhole double-hollow sucker rod hot-water circulation heating device | |
| CN204226857U (en) | A kind of pipeline installation rack being convenient to regulate | |
| CN203430462U (en) | Anti-backflow oil well Christmas tree | |
| CN202788685U (en) | Oil well working fluid fast reversing device | |
| CN202108480U (en) | Constant pressure gas discharge wellhead device of oil well sleeve | |
| CN204609941U (en) | Downhole choke speedup drainage gas production tool | |
| CN203362098U (en) | Ultrahigh-pressure coiled tubing fracture wellhead device | |
| CN201757193U (en) | Integrated reversing valve group | |
| CN201568020U (en) | Double-pipe watering antifreeze well head combined device | |
| CN106049597A (en) | Anchor-block drain tap well applicable to long-distance large-diameter exposed-laying water pipe | |
| CN205804467U (en) | Be suitable to the anchor block formula drain tap well of long-distance large-caliber surface aqueduct | |
| CN202090899U (en) | Ground watering device for thick oil well | |
| CN204344037U (en) | Bailing device for horizontal well | |
| CN202108469U (en) | Well head pressure releasing device for sleeve of oil well | |
| CN204061993U (en) | Draw water with water pipe and recharge dual purpose valve in a kind of down-hole | |
| CN204127562U (en) | Ventilation eddy flow pipe fitting | |
| CN204511895U (en) | The modifying device of centrifugal pump | |
| CN201972650U (en) | Drainage device at operation wellhead | |
| CN203362147U (en) | Manifold capable of directly adding wax balls for fracturing construction | |
| CN204000943U (en) | Make the plastic inspection well that current are more unimpeded | |
| RU88380U1 (en) | FITTING FITTINGS | |
| CN203362074U (en) | Improved pressure release manifold device of foam drilling | |
| CN203420678U (en) | Low-yield wax-deposition oil well flow string | |
| CN203420856U (en) | Viscosity reduction pump | |
| CN203146017U (en) | Underground coal mine water supply and discharge pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |