CN204627500U - Thermal recovery steam injection well head obturator - Google Patents
Thermal recovery steam injection well head obturator Download PDFInfo
- Publication number
- CN204627500U CN204627500U CN201520338367.4U CN201520338367U CN204627500U CN 204627500 U CN204627500 U CN 204627500U CN 201520338367 U CN201520338367 U CN 201520338367U CN 204627500 U CN204627500 U CN 204627500U
- Authority
- CN
- China
- Prior art keywords
- wellhead assembly
- connection block
- steam injection
- assembly connection
- polished rod
- 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
A kind of thermal recovery steam injection well head obturator, sealer is on wellhead assembly Connection Block, the lower thread of suspension joint is connected with sucker rod in well, the middle part external screw thread of suspension joint is connected with the lower internal thread of wellhead assembly Connection Block, the upper surface of wellhead assembly Connection Block is exposed on the top of suspension joint, the bottom of wellhead assembly Connection Block is connected with steam injection wellhead assembly, make steam injection well be in closed state and carry out steam injection, after steam injection terminates, polished rod is through sealer, wellhead assembly Connection Block rear lower is connected with the top of suspension joint, the bottom of wellhead assembly Connection Block is made to be connected with the top of wellhead assembly Connection Block again, rotate polished rod, make the connecting thread shackle of suspension joint and wellhead assembly Connection Block, transferring polished rod makes it be in oil pumping position, just can turn pumping after steam injection terminates to produce, open wide wellhead assembly after not needing to wait for distress resolves and polished rod and sealer are installed, the utility model adopts the closed steam injection well head that is threaded, wellhead sealing can be ensured, functional reliability is high, ensure safety in production.
Description
Technical field
The utility model is the wellhead equipment of oil exploitation, is the well mouth sealing device of heavy oil wells heat extraction by steam injection, specifically thermal recovery steam injection well head obturator.
Background technology
In order to prevent blowout during the oil pumping of pumpingh well sucker rod, on the flow tee of wellhead assembly, sealer to be installed, bar top through sealer connects oil pumper, bottom connecting with pumping rod, in order to ensure and sealer fitted seal, body of rod Surface Machining through sealer is very smooth, so be called polished rod, its sealer is also just called polished rod sealer.Existing polished rod sealer kind is more, but all there is certain defect, and because temperatures as high during steam injection more than 360 is spent, ensure long-time sealing again, current used nonmetals all do not reach this requirement.So, generally polished rod sealer is not installed during current steam injection, only have and adopt the way of multi-step to carry out steam injection construction, specifically first do not play polished rod, well head can close steam injection, to have constructed rear closing well step-down etc. steam injection, after well head pressure disappears, enter polished rod under opening wide well head again and install polished rod sealer, now wellhead temperature is not high, and common polished rod sealer just can use.This construction method operation is many, and the cycle is long, and the time of distress resolves is long, can not opening well and making production in time, affects steam injection efficiency, also reduces oil well output.Chinese patent 2014201799764 " a kind of thermal recovery steam injection well head obturator ", steam injection thermal recovery well can enter down airtight steam injection after polished rod, working procedure can be reduced, pumping can be turned after steam injection terminates immediately produce, but it will all the time on carry polished rod 1 and do not loosen, seal valve 6 pairs of seal receptacles 4 in the overall process of its steam injection are made to be applied with enough pressure, its contact surface gapless is made to keep sealing, this requires to be difficult at the scene realize, because at the scene all the time on to put forward way that polished rod 1 do not loosen be block polished rod maintain upper lifting force by polished rod being carried rear clamp, after long-time high temperature steam injection, material produces creep, upper lifting force reduces or disappears, wellhead sealing can not be ensured, if there is the perverse leakage of high-temperature steam can produce major safety risks, also can bring very large to steam injection work.
Summary of the invention
The purpose of this utility model is a kind of thermal recovery steam injection well head obturator of design, opens wide wellhead assembly, can turn pumping immediately and produce, reduce flow chart, improve steam injection efficiency, increase oil well output after steam injection terminates after not needing to wait for distress resolves.
The purpose of this utility model is achieved in that and comprises polished rod, sealer, wellhead assembly Connection Block, suspension joint, sealer is on wellhead assembly Connection Block, through wellhead assembly Connection Block after the bottom of polished rod is connected with the top of suspension joint, sealer, the upper external thread of suspension joint is connected with the lower internal thread of wellhead assembly Connection Block, make the inside of wellhead assembly Connection Block blocked, the lower thread of suspension joint is connected with sucker rod in well, the bottom of wellhead assembly Connection Block is connected with steam injection wellhead assembly, make steam injection well be in closed state and carry out steam injection, after steam injection terminates, make sealer working seal polished rod, rotate polished rod, make the connecting thread shackle of suspension joint and wellhead assembly Connection Block, suspension joint is separated with wellhead assembly Connection Block, transferring polished rod makes it be in oil pumping position.
Polished rod is contrary with the connecting thread rotation direction of suspension joint and wellhead assembly Connection Block with the connecting thread of suspension joint.
The beneficial effects of the utility model are: after steam injection terminates, just can turn pumping by aforesaid operations to produce, do not need to dismantle wellhead assembly, open wide wellhead assembly after not needing to wait for distress resolves and polished rod and sealer are installed, pumping can be turned immediately produce, can flow chart be reduced, improve steam injection efficiency, increase oil well output.The utility model adopts the closed steam injection well head that is threaded, overcome Chinese patent 2014201799764 " a kind of thermal recovery steam injection well head obturator " Problems existing, wellhead sealing can be ensured, functional reliability is high, ensure safety in production, therefore, the utility model has significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the assembling drawing of the utility model embodiment.
Specific embodiment
Below in conjunction with Fig. 1, embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises polished rod 1, sealer 2, wellhead assembly Connection Block 3, suspension joint 4, sealer 2 is on wellhead assembly Connection Block 3, the bottom of polished rod 1 is connected rear through wellhead assembly Connection Block 3 with the top of suspension joint 4, sealer 2, the upper external thread of suspension joint 4 is connected with the lower internal thread of wellhead assembly Connection Block 3, junction ensures sealing, connecting thread is tubing round thread, make the inside of wellhead assembly Connection Block blocked, the lower thread of suspension joint 4 is connected with sucker rod in well, the bottom of wellhead assembly Connection Block 3 is connected with steam injection wellhead assembly, make steam injection well be in closed state and carry out steam injection, after steam injection terminates, non-metallic seal is not put in sealer 2 when making sealer 2 working seal polished rod 1(steam injection, prevent high temperature failure seal, need just to put into seal during sealer 2 working seal polished rod 1), rotate polished rod 1, make the connecting thread shackle of suspension joint 4 and wellhead assembly Connection Block 3, suspension joint 4 is separated with wellhead assembly Connection Block 3, transferring polished rod 1 makes it be in oil pumping position.Polished rod 1 is contrary with the connecting thread rotation direction of wellhead assembly Connection Block 3 with suspension joint 4 with the connecting thread of suspension joint 4, that is, if the lower thread of polished rod 1 is right-handed thread, then the lower internal thread of wellhead assembly Connection Block 3 is left hand thread, when making it rotate polished rod 1, polished rod 1 is tight screw thread with the connecting thread of suspension joint 4, and suspension joint 4 and wellhead assembly Connection Block 3 connecting thread are loose screw thread.
Firm in order to connect, the structure (joint as sucker rod) with spanner aspect can be processed in the bottom of polished rod 1, also can arrange in spanner on the face of cylinder of its underpart.In order to ensure that polished rod 1 is not threaded off with the connecting thread of suspension joint 4, escapement can be set in its junction.
Sealer 2 and wellhead assembly Connection Block 3 can be integrative-structures, also can be Split type structures, if Split type structure, sealer 2 becomes one with the suitable connected mode of wellhead assembly Connection Block 3, and junction ensures sealing.
Descended steam injection string and oil well pump in the wellhead assembly of wellhead assembly Connection Block 3 bottom and pit shaft, steam injection string and oil well pump are suspended on wellhead assembly, and sucker rod is connected to suspension joint 4 times.
Wellhead assembly Connection Block 3 can be Flange joint with the connection of the steam injection wellhead assembly of bottom, also can be threaded, and the wellhead assembly Connection Block 3 that accompanying drawing 1 draws is flange, is Flange joint.
Claims (2)
1. a thermal recovery steam injection well head obturator, comprise polished rod (1), sealer (2), wellhead assembly Connection Block (3), suspension joint (4), it is characterized in that: sealer (2) is on wellhead assembly Connection Block (3), the bottom of polished rod (1) is connected rear through wellhead assembly Connection Block (3) with the top of suspension joint (4), sealer (2), the upper external thread of suspension joint (4) is connected with the lower internal thread of wellhead assembly Connection Block (3), make the inside of wellhead assembly Connection Block blocked, the lower thread of suspension joint (4) is connected with sucker rod in well, the bottom of wellhead assembly Connection Block (3) is connected with steam injection wellhead assembly, make steam injection well be in closed state and carry out steam injection, after steam injection terminates, make sealer (2) working seal polished rod (1), rotate polished rod (1), make the connecting thread shackle of suspension joint (4) and wellhead assembly Connection Block (3), suspension joint (4) is separated with wellhead assembly Connection Block (3), transferring polished rod (1) makes it be in oil pumping position.
2. a kind of thermal recovery steam injection well head obturator according to claim 1, is characterized in that: polished rod (1) is contrary with the connecting thread rotation direction of wellhead assembly Connection Block (3) with suspension joint (4) with the connecting thread of suspension joint (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338367.4U CN204627500U (en) | 2015-05-25 | 2015-05-25 | Thermal recovery steam injection well head obturator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338367.4U CN204627500U (en) | 2015-05-25 | 2015-05-25 | Thermal recovery steam injection well head obturator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627500U true CN204627500U (en) | 2015-09-09 |
Family
ID=54046539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520338367.4U Expired - Fee Related CN204627500U (en) | 2015-05-25 | 2015-05-25 | Thermal recovery steam injection well head obturator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108234A (en) * | 2023-10-24 | 2023-11-24 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
-
2015
- 2015-05-25 CN CN201520338367.4U patent/CN204627500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108234A (en) * | 2023-10-24 | 2023-11-24 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
| CN117108234B (en) * | 2023-10-24 | 2024-01-30 | 克拉玛依红山油田有限责任公司 | Sectional type thermal recovery polished rod static seal structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170525 |