CN109915095A - A kind of oil well control set pressure device - Google Patents
A kind of oil well control set pressure device Download PDFInfo
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- CN109915095A CN109915095A CN201711319594.2A CN201711319594A CN109915095A CN 109915095 A CN109915095 A CN 109915095A CN 201711319594 A CN201711319594 A CN 201711319594A CN 109915095 A CN109915095 A CN 109915095A
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- oil nozzle
- muff
- under certain
- gas under
- oil
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Abstract
A kind of oil well control set pressure device, including oil nozzle, valve discharging gas under certain pressure, oil nozzle muff, valve discharging gas under certain pressure muff and ball-and-seat；It is connected in the oil nozzle muff before and after the oil nozzle and valve discharging gas under certain pressure；Silk plug is by screwed connection in the oil nozzle muff；Heat preservation component connects the outer surface of the oil nozzle muff and valve discharging gas under certain pressure muff, and built-in accommodation space is connected by interface with steam pipe line；The ball-and-seat is mounted on the valve discharging gas under certain pressure exit.Oil well control set pressure device provided by the invention passes through two-stage decompression, two class protection; both the generation quantity of gas hydrates had been reduced; have again and avoid the possibility that natural gas largely enters system, and by steam heating and heat-insulating device, efficiently avoids casing frozen block problem.
Description
Technical field
The invention belongs to oil-gas field development technical fields, more particularly, to a kind of oil well control covering device.
Background technique
Currently, Domestic Oil And Gas Fields control casing pressure mainly uses gate or valve discharging gas under certain pressure to control.Natural gas in casing
In discharge process, since decompression is absorbed heat, gas hydrates can be generated, it is easy to lead to the problem of frozen block.It is currently used antifreeze
Stifled method has electric tracing, water mixing circulation heat tracing etc..These methods are by heat tracing temperature, gas hydrates formation speed and day
Temperature degree is affected, and cannot be basic solve the problems, such as can be such that casing pressure gradually rises after pipe freezeup, level pressure abandon valve frozen block, no
The operational hazards of employee are only increased, and cause biggish damage to cable, considerably increase the probability of oil well halt production operation.
Summary of the invention
For the easy frozen block problem of pipeline caused by existing apparatus, the present invention provides a kind of new oil well control covering devices, originally
Device thoroughly passes through the generation quantity that multi-stage pressure regulating greatly reduces gas hydrates, solves the problems, such as the frozen block of vent valve.
The technical solution adopted by the present invention are as follows:
A kind of oil well control set pressure device, including casing, oil nozzle, valve discharging gas under certain pressure and muff；The oil nozzle and level pressure are put
Air valve is separately connected in the muff；The silk plug is threadedly attached in the oil nozzle muff；Heat preservation component connection
In the outer surface of oil nozzle muff, built-in accommodation space is connected by interface with steam pipe line；The ball-and-seat is mounted on institute
State valve discharging gas under certain pressure exit.
The muff is located on the oil nozzle and valve discharging gas under certain pressure.
The oil nozzle is arranged in oil nozzle muff, through screwed connection in oil nozzle muff.
Described is located at oil nozzle muff rear end and silk plug by screwed connection, and side is connected with casing.
The valve discharging gas under certain pressure front end is connected to the muff lower end on the oil nozzle, is put by screwed connection in level pressure
In air valve muff.
The heat preservation component is mounted on the outer surface of oil nozzle muff, build-in cavities, the build-in cavities and steam
Pipe is connected.
Optionally, bulge loop built in the oil nozzle muff, passes through screw thread and oil nozzle screwed connection.
Optionally, the oil nozzle is fixed in oil nozzle seat, and the oil nozzle seat passes through bulge loop described in screwed connection, and described
Sealing ring described in the oil nozzle base rear end style.
Optionally, heat preservation interface is provided on the heat preservation component, the heat preservation interface is connected to steam pipe.
Compared with the existing technology, a kind of oil well control set pressure device of the present invention has the advantage that
Since oil nozzle of the present invention is mounted in the front end of valve discharging gas under certain pressure, and it is sealedly connected in oil nozzle muff, level pressure air-bleed
Valve is mounted in valve discharging gas under certain pressure muff, in this way, the gas of discharge passes through oil nozzle first when to put set, after first decompression,
Be precipitated a small amount of gas hydrates, after reheating, into valve discharging gas under certain pressure after realize secondary decompression, system is entered after heating.This
Device not only reduces the amount of precipitation of gas hydrates, effectively prevents pipeline frozen block problem, and by oil nozzle and determine
Press air valve two class protection, greatly reduce because valve discharging gas under certain pressure damage, and caused by impact of the casing gas to production system.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of oil well control casing pressure apparatus structure schematic diagram of the present invention.
Description of symbols:
1, oil nozzle muff, 2, bulge loop, 3, oil nozzle seat, 4, oil nozzle, 5, oil nozzle muff heat preservation interface, 6, heat preservation component,
7, silk plug, 8, valve discharging gas under certain pressure muff heat preservation interface, 9, valve discharging gas under certain pressure muff, 10, valve discharging gas under certain pressure, 11, bracelet,
12, gate, 13, ball-and-seat, 14, drain.
Specific embodiment
For the easy frozen block problem of pipeline caused by existing apparatus, the present invention provides a kind of new oil well control covering devices, originally
Device thoroughly passes through the generation quantity that multi-stage pressure regulating greatly reduces gas hydrates, and the frozen block for thoroughly solving vent valve is asked
Topic.
Apparatus structure provided by the present application is described in detail in lower mask body combination attached drawing, described in detail below.
Referring to Fig. 1, the present invention provides a kind of oil well control covering devices, including oil nozzle 4, and oil nozzle is by screwed connection in oil nozzle
In muff 1；Silk plug 7, silk plug are connected with oil nozzle muff 1 by screw thread；The outer of oil nozzle muff 1 is arranged in heat preservation component 6
Surface, build-in cavities, cavity keep the temperature interface 5 by oil nozzle muff and are connected with steam pipe；Valve discharging gas under certain pressure 10, valve discharging gas under certain pressure
10 one end are exported with pipeline gate 12 to be connected by screw thread, and external valve discharging gas under certain pressure muff 9, the other end and ball-and-seat 13 connect
It connects.Valve discharging gas under certain pressure muff 9 is external on valve discharging gas under certain pressure 10, and build-in cavities keep the temperature interface 8 by valve discharging gas under certain pressure and steam
Steam pipe is connected.
Specifically, the bulge loop 2 passes through screwed connection in oil nozzle muff 1, oil nozzle seat 3 is connected by screw thread and bulge loop 3
It connects, oil nozzle 4 is connect by screw thread with bulge loop 2, and is fixed in oil nozzle seat 3；
Specifically, 6 build-in cavities of heat preservation component, oil nozzle muff heat preservation interface 5 is separately positioned on heat preservation component 6
Upper/lower terminal, screw thread built in heat preservation interface 5, can be sealedly and fixedly connected with steam pipe, make to realize steam full of steam in cavity
Recycle heat tracing；
Specifically, the silk plug 7 is connect by screw thread with muff 1, built-in sealing ring guarantees leakproofness；
Specifically, gate 12 is mounted on the outlet of oil nozzle 4 in a manner of flanged joint, preposition drain 15 is convenient for oil nozzle more
Release work before changing.
Specifically, the mode that valve discharging gas under certain pressure 10 is connected with thread, is mounted on 4 outlet end of oil nozzle, is adjusted by handwheel 11
Pressure set points, if line pressure value reaches setting pressure, valve body is opened, starts to diffuse；The setting of 10 leading portion of valve discharging gas under certain pressure is put
It eats dishes without rice or wine 14, by handwheel application valve body opening degree, discharge and pressure release for gas hydrates；Ball-and-seat is arranged in rear end
13, it is connect by flange with pipeline, prevents system oil gas return into oil jacket annulus；
Specifically, 9 sets of the heat preservation component outer surfaces in valve discharging gas under certain pressure 10, heat preservation interface 8 is respectively set and level pressure air-bleed
The upper and lower ends of valve muff 9, built-in screw thread make to realize circulation full of steam in cavity, it can be achieved that with steam pipe sealed connection
Heat tracing.
Further, cylindrical channel built in oil nozzle 4, basal diameter range are 2~20mm.It, should be according to reality when putting set
Border situation calculates corresponding diameter dimension.Natural gas is quickly flowed out from oil jacket annulus, and after oil nozzle 4, tolerance is reduced, pressure
Power rapid decrease is also easy to produce gas hydrates, here plus heat preservation component 6, should at least guarantee 70 degrees Celsius or more of hot water
Or steam circulation.
Further, arc valve body and spring built in valve discharging gas under certain pressure 10 by the tension of bracelet adjustment spring, and then are controlled
The cracking pressure of valve body processed realizes level pressure air-bleed.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use this hair
It is bright.Various modifications to these embodiments will be readily apparent to those skilled in the art, defined herein
General Principle can realize in other embodiments without departing from the spirit or scope of the invention.Therefore, of the invention
It will not be limited and the embodiments shown herein, and be to fit to and principles disclosed herein and novel features phase
Consistent widest range.
Claims (6)
1. a kind of oil well control covers pressure device, it is characterised in that: including oil nozzle (4), valve discharging gas under certain pressure (10), oil nozzle muff (1),
The input end of valve discharging gas under certain pressure muff (9) and ball-and-seat (13), oil nozzle (4) is interior in oil nozzle muff (1) by screwed connection,
Oil nozzle (4) outlet end is connected with silk plug (7), and oil nozzle muff (1) outlet end passes through screw thread and the level pressure air-bleed
The input end of valve (10) is connected, and the outlet end of the valve discharging gas under certain pressure (10) is connected with ball-and-seat (13), heat preservation component (6) connection
In oil nozzle muff (1) outer surface, it is described fixed that the valve discharging gas under certain pressure muff (9) that can be connected with steam pipe line is connected to
Press the outer surface of air valve (10).
2. a kind of oil well control described in claim 1 covers pressure device, it is characterised in that: the oil nozzle (4) and the oil nozzle are kept the temperature
Cover (1) junction, inside have oil nozzle seat (3) and bulge loop (2), oil nozzle (4) is fixed on oil nozzle seat (3) by screwed connection,
Oil nozzle seat (3) is connected by screw thread with bulge loop (2), and bulge loop (2) and casing are realized by sealing ring and sealed.
3. a kind of oil well control described in claim 1 covers pressure device, it is characterised in that: the valve discharging gas under certain pressure (10) is placed in described
Oil nozzle (4) outlet end, ball-and-seat (13) are arranged in another outlet end of threeway, are connected with production system pipeline.
4. a kind of oil well control described in claim 1 covers pressure device, it is characterised in that: heat preservation component (6) is equipped with oil nozzle muff
It keeps the temperature interface (5), oil nozzle muff heat preservation interface (5) is connected to steam pipe.
5. steam pipe line as claimed in claim 4, it is characterised in that: the steam pipe is hose, the external steel spiral shell in both ends
Line connector.
6. a kind of oil well control described in claim 1 covers pressure device, it is characterised in that: circular aperture built in the oil nozzle (4), hole
Diameter 2-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319594.2A CN109915095A (en) | 2017-12-12 | 2017-12-12 | A kind of oil well control set pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319594.2A CN109915095A (en) | 2017-12-12 | 2017-12-12 | A kind of oil well control set pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109915095A true CN109915095A (en) | 2019-06-21 |
Family
ID=66956771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711319594.2A Pending CN109915095A (en) | 2017-12-12 | 2017-12-12 | A kind of oil well control set pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109915095A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696613A (en) * | 2021-02-26 | 2021-04-23 | 西南石油大学 | Anti-freezing and anti-blocking throttling oil nozzle |
| CN115506751A (en) * | 2022-10-09 | 2022-12-23 | 中国石油天然气股份有限公司 | Series anti-freezing and anti-blocking constant-pressure air release device and sleeve air recovery method |
-
2017
- 2017-12-12 CN CN201711319594.2A patent/CN109915095A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696613A (en) * | 2021-02-26 | 2021-04-23 | 西南石油大学 | Anti-freezing and anti-blocking throttling oil nozzle |
| CN115506751A (en) * | 2022-10-09 | 2022-12-23 | 中国石油天然气股份有限公司 | Series anti-freezing and anti-blocking constant-pressure air release device and sleeve air recovery method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190621 |
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| WD01 | Invention patent application deemed withdrawn after publication |