CN208594906U - Normal pressure oil wellhead chemical agent adding device - Google Patents
Normal pressure oil wellhead chemical agent adding device Download PDFInfo
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- CN208594906U CN208594906U CN201821268747.5U CN201821268747U CN208594906U CN 208594906 U CN208594906 U CN 208594906U CN 201821268747 U CN201821268747 U CN 201821268747U CN 208594906 U CN208594906 U CN 208594906U
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- adding bin
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- inlet tube
- pressure oil
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Abstract
The utility model discloses a kind of normal pressure oil wellhead chemical agent adding device, which includes: medicine-adding bin (1), respiratory siphon (2), inlet tube (3), main valve (8), hose (9) and well head header (10)；One end of respiratory siphon (2) is internal to medicine-adding bin (1) lower part from the insertion of medicine-adding bin (1) top, and it is external that the other end is located at medicine-adding bin (1)；It is internal that one end of inlet tube (3) is located at medicine-adding bin (1), the other end of inlet tube (3) is connect with one end of main valve (8), the other end of main valve (8) is connect with one end of hose (9), in other end insertion well head header (10) of hose (9)；Respiratory siphon (2) is higher than the height of inlet tube (3) in medicine-adding bin (1) in the height in medicine-adding bin (1).The chemicals dosing plant of the application not only solves normal pressure oil well constant current dosing problem, and structure is simple, and dosing is not necessarily to external impetus, easy for installation, maintenance cost is low, high reliablity.
Description
Technical field
The utility model relates to oil recovery technique field, in particular to a kind of normal pressure oil wellhead chemical agent adding device.
Background technique
With oil reservoir development gradually deep and Development Finance continuous variation, oil well wax deposition, fouling, tube rod burn into
Emulsification of crude oil etc., which becomes, influences the main reason for oil well normally produces and restricts pump detection period.Control these factors, Jiu get Shi
Apply underground dosing.Usual oil well needs the medicament added to have paraffin remover, wax-proofing agent, fungicide, corrosion inhibiter, antisludging agent, demulsifier, drop
Stick, Hydrogen Sulfide Inhibitor, beneficial microbe bacterium nutritional agents etc., different oil fields, different blocks, even different layers position production liquid
Property is different, thus, the type and concentration of oil well dosing be not also identical.Currently, be directed to without casing pressure oil well (i.e. normal pressure oil well),
Main two kinds of well head medicine-adding method, first is that periodically disposable dosing；Second is that continuous dosing.
But continuous dosing method, medicine-adding bin is continued to use always by liquid level difference carries out oil well annular space drop dosing method dimension
Oil well production is held, " fool " method for dosing medicine is commonly called as.This method is not necessarily to external impetus, is widely used at present.But " fool " dosing
Method is influenced by medicine-adding bin liquid height, and current difference, can not constant current away from larger.Medicine-adding bin is plastic barrel, and intensity is relatively low,
Foreign matter is fallen into bucket in order to prevent, and dosing bung is needed to tighten, and is easy to vacuumize, easily-deformable.This dosing method simultaneously, outlet
Caliber is small, is easy blocking, and maintenance is inconvenient.In addition, to solve the problems, such as that dosing is measured.
Utility model content
The utility model embodiment provides a kind of normal pressure oil wellhead chemical agent adding device, which not only solves often
Pressure oil well constant current dosing problem, and structure is simple, is not necessarily to external impetus, easy for installation, maintenance cost is low, high reliablity.
The utility model embodiment provides a kind of normal pressure oil wellhead chemical agent adding device, which includes: medicine-adding bin
1, respiratory siphon 2, inlet tube 3, main valve 8, hose 9 and well head header 10；One end of respiratory siphon 2 is inserted into internal from 1 top of medicine-adding bin
To 1 lower part of medicine-adding bin, the other end is located at outside medicine-adding bin 1；One end of inlet tube 3 is located inside medicine-adding bin 1, inlet tube 3 it is another
One end is connect with one end of main valve 8, and the other end of main valve 8 is connect with one end of hose 9, and the other end insertion well head of hose 9 converges
In pipe 10；Respiratory siphon 2 is higher than height of the inlet tube 3 in medicine-adding bin 1 in the height in medicine-adding bin 1.
Preferably, chemicals dosing plant further include: threeway 4, de-plugging valve 5, needle valve 6 and gauge line 7；Inlet tube 3 successively leads to
Threeway 4, needle valve 6 and gauge line 7 is crossed to connect with main valve 8；Three ends of threeway 4 respectively with inlet tube 3, de-plugging valve 5 and needle valve 6
Connection.
Preferably, chemicals dosing plant further include: blowdown valve 11；Blowdown valve 11 is connect by sewage pipe with 1 bottom of medicine-adding bin.
Preferably, chemicals dosing plant further include: breather valve 12 and sealing bung 13；Breather valve 12 passes through exhaust pipe and sealing
Bung 13 connect, and with 1 connection of medicine-adding bin；It seals bung 13 and medicine-adding bin 1 is tightly connected.
Compared with prior art, the utility model at least has the advantages that
It solves the problems, such as normal pressure oil well constant current dosing, realizes normal pressure oil well constant current dosing；
Solves the problems, such as dosing metering；
It is small to solve outlet caliber, pipeline is easy to block, and repairs inconvenient problem；
Structure is simple, and dosing is not necessarily to external impetus, easy for installation, maintenance cost is low, high reliablity.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of structure chart for normal pressure oil wellhead chemical agent adding device that the utility model one embodiment provides.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments, based on the implementation in the utility model
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to
In the range of the utility model protection.
As shown in Figure 1, the utility model embodiment provides a kind of normal pressure oil wellhead chemical agent adding device, the chemicals dosing plant packet
It includes: medicine-adding bin 1, respiratory siphon 2, inlet tube 3, threeway 4, de-plugging valve 5, needle valve 6, gauge line 7, main valve 8, hose 9, well head header
10, blowdown valve 11, breather valve 12 and sealing bung 13；One end of respiratory siphon 2 is internal to medicine-adding bin 1 from the insertion of 1 top of medicine-adding bin
Lower part, the other end are located at outside medicine-adding bin 1；One end of inlet tube 3 is located inside medicine-adding bin 1, the other end and main valve of inlet tube 3
8 one end connection, the other end of main valve 8 are connect with one end of hose 9, in the other end insertion well head header 10 of hose 9；Breathing
Pipe 2 is higher than height of the inlet tube 3 in medicine-adding bin 1 in the height in medicine-adding bin 1；Inlet tube 3 passes sequentially through threeway 4, needle valve 6
It is connect with gauge line 7 with main valve 8；Three ends of threeway 4 are connect with inlet tube 3, de-plugging valve 5 and needle valve 6 respectively；Blowdown valve 11 is logical
Sewage pipe is crossed to connect with 1 bottom of medicine-adding bin；Breather valve 12 by exhaust pipe with seal bung 13 connect, and with 1 connection of medicine-adding bin；
It seals bung 13 and medicine-adding bin 1 is tightly connected.
In order to more clearly illustrate chemicals dosing plant provided by the utility model, below with reference to Fig. 1 to its working principle
It is illustrated.
Utilize " constant current bottle " principle, medicine-adding bin sealing.From the exhaust tube 2 of a piece interior diameter very little of bucket top insertion to dosing
It at the lower part A of bucket 1, i.e., is communicated at A with ambient atmosphere inside bucket, when opening than aperture B lower at A, liquid will at the uniform velocity
Outflow.Pressure P at AAAlways it keeps balancing with atmospheric pressure, the pressure P at the A of medicine-adding bin bottomAIt is also equal to liquid-column height P in bucketH
With tank internal upper part gas pressure PCThe sum of, to eliminate influence of the liquid-column height to drain in bucket, flow velocity is by A and B at drain
Locate difference in height △ H to determine, liquid realizes constant current under self gravitation effect.Simultaneously because being filled with sky in bucket using exhaust tube
Gas effectively prevent " fool " method for dosing medicine plastic barrel, is evacuated, easily-deformable phenomenon.
" fool " method for dosing medicine dosage can not measure, and diaphanometer buret 7 is installed between needle valve 6 and main valve 8, and switch is total
Valve 8, when adjusting 6 size of needle valve, since outlet tube is small, air is closed between inlet tube 3 and gauge line 7, and liquid is not toward dirty
It is dynamic, it can not measure.For this purpose, installing threeway 4 in needle valve 6, de-plugging valve 5 is installed in 4 side of threeway, and it is big which plays connection
Gas effect, it is ensured that liquid outflow may be implemented to measure.
It is small to export caliber, exports and is easy blocking.When a jam does occur, main valve 8 and needle valve 6 are opened, is stretched with plastic lined piping
Inlet/outlet pipeline carries out downwards de-plugging upwards.
One medicine-adding bin medicine connects multiple rows of liquid pipe, while heavy wool well is added, and can accomplish the constant current simultaneously of heavy wool well.
Finally, it should be noted that the above is only the preferred embodiment of the present invention, it is merely to illustrate practical
Novel technical solution, is not intended to limit the protection scope of the utility model.It is all the spirit and principles of the utility model it
Interior done any modification, equivalent substitution, improvement and etc., are all contained in the protection scope of the utility model.
Claims (4)
1. a kind of normal pressure oil wellhead chemical agent adding device, which is characterized in that the chemicals dosing plant include: medicine-adding bin (1), respiratory siphon (2),
Inlet tube (3), main valve (8), hose (9) and well head header (10)；In one end of respiratory siphon (2) is inserted into from medicine-adding bin (1) top
To medicine-adding bin (1) lower part, it is external that the other end is located at medicine-adding bin (1) in portion；One end of inlet tube (3) is located at medicine-adding bin (1) inside, into
The other end of liquid pipe (3) is connect with one end of main valve (8), and the other end of main valve (8) is connect with one end of hose (9), hose (9)
The other end insertion well head header (10) in；Height of the respiratory siphon (2) in medicine-adding bin (1) is higher than inlet tube (3) in medicine-adding bin
(1) height in.
2. normal pressure oil wellhead chemical agent adding device according to claim 1, which is characterized in that the chemicals dosing plant further include: three
Logical (4), de-plugging valve (5), needle valve (6) and gauge line (7)；Inlet tube (3) passes sequentially through threeway (4), needle valve (6) and metering
Pipe (7) is connect with main valve (8)；Three ends of threeway (4) are connect with inlet tube (3), de-plugging valve (5) and needle valve (6) respectively.
3. normal pressure oil wellhead chemical agent adding device according to claim 1, which is characterized in that the chemicals dosing plant further include: row
Dirty valve (11)；Blowdown valve (11) is connect by sewage pipe with medicine-adding bin (1) bottom.
4. normal pressure oil wellhead chemical agent adding device according to claim 1 to 3, which is characterized in that the chemicals dosing plant also wraps
It includes: breather valve (12) and sealing bung (13)；Breather valve (12) is connect by exhaust pipe with sealing bung (13), and and medicine-adding bin
(1) connection；Bung (13) and medicine-adding bin (1) are sealed to be tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268747.5U CN208594906U (en) | 2018-08-07 | 2018-08-07 | Normal pressure oil wellhead chemical agent adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268747.5U CN208594906U (en) | 2018-08-07 | 2018-08-07 | Normal pressure oil wellhead chemical agent adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208594906U true CN208594906U (en) | 2019-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821268747.5U Active CN208594906U (en) | 2018-08-07 | 2018-08-07 | Normal pressure oil wellhead chemical agent adding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485967A (en) * | 2019-08-20 | 2019-11-22 | 中国石油天然气股份有限公司 | A kind of defroster of double medicament well mouth of oil well dosing pipelines and antifreeze method |
-
2018
- 2018-08-07 CN CN201821268747.5U patent/CN208594906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485967A (en) * | 2019-08-20 | 2019-11-22 | 中国石油天然气股份有限公司 | A kind of defroster of double medicament well mouth of oil well dosing pipelines and antifreeze method |
| CN110485967B (en) * | 2019-08-20 | 2022-03-29 | 中国石油天然气股份有限公司 | Anti-freezing device and anti-freezing method for double-agent oil well wellhead dosing pipeline |
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