CN208456562U - A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device - Google Patents
A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device Download PDFInfo
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- CN208456562U CN208456562U CN201821108150.4U CN201821108150U CN208456562U CN 208456562 U CN208456562 U CN 208456562U CN 201821108150 U CN201821108150 U CN 201821108150U CN 208456562 U CN208456562 U CN 208456562U
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- carbon dioxide
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Abstract
The utility model patent belongs to technical field of petroleum extraction, is related to the carbon dioxide injection displacement of reservoir oil and improves recovery efficiency technique.A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device, and dosing unit and drain unit including passing sequentially through connecting pipeline connection, drain unit are connected with well head；It further include metering units, for the measurement unit in the connecting pipeline between dosing unit and drain unit, metering units are additionally provided with computer, are connected between the metering units and computer by cable.The utility model accurately controls injection rate, injection length, injection rate by computer；Device assembling flexibly, can change dosing unit quantity as needed, can be used for the dosing operation of other purposes, can a kind of individually medicament injection, can also various medicaments inject simultaneously；Check valve is installed, liquid reflux can be prevented；Self-cleaning can be achieved, prevent pipeline, injection pump corrosion.
Description
Technical field
The utility model patent belongs to technical field of petroleum extraction, is related to the carbon dioxide injection displacement of reservoir oil and improves recovery efficiency technique.
Background technique
Carbon dioxide flooding receives more and more attention in recent years, especially exists as a raising recovery efficiency technique
Under the overall background of global carbon emission reduction, it is constantly progressive and is developed using carbon dioxide flooding as the CCUS technology of core.But
In field application, carbon dioxide is met the carbonic acid that water is formed and is more protruded the etching problem of tubing string and pipeline, to the technology of CCUS
Development brings serious test.In this context, more important for etch-proof research, common method is main on oil field at present
It is: (1) uses anticorrosion tubing string and pipeline, but expensive；(2) corrosion inhibiter is added, delays carbon dioxide to tubing string and pipeline
Corrosion, this method is relatively inexpensive, is current mainstream anti-corrosion method.This method mainly passes through the in advance or synchronous of corrosion inhibiter
Injection, to delay or reduce the corrosivity of carbon dioxide, reaches etch-proof purpose.
Summary of the invention
The utility model is intended in view of the above-mentioned problems, proposing a kind of carbon dioxide note that can accurately control medicament injection rate
Enter pipeline corrosion protection and continuously adds corrosion inhibiter injection device.
The technical solution of the utility model is:
A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device, including passes sequentially through connecting pipeline connection
Dosing unit and drain unit, drain unit is connected with well head；It further include metering units, the metering units are located at dosing list
In connecting pipeline between member and drain unit, metering units are additionally provided with computer, pass through line between the metering units and computer
Cable connection.
Further include cleaning device, the cleaning device is purge tank, the purge tank and dosing unit and metering units it
Between pipeline be connected.
The drain unit includes the check valve in connecting pipeline.
The drain unit further includes the blowdown valve after check valve in connecting pipeline.
The metering units are high-precision measuring pump.
The connecting pipeline is corrosion-proof pipe line.
The dosing unit includes several pharmacy jars, and the high-precision measuring pump is also multiple, the number of the pharmacy jar
Mesh is equal with the number that high-precision measuring pumps, and each pharmacy jar connects a high-precision measuring pump.
The utility model has the technical effect that
1. computer accurately controls injection rate, injection length, injection rate；
2. device assembling is flexibly, dosing unit quantity can be changed as needed, can be used for the dosing operation of other purposes, it can
Injected with a kind of individually medicament, can also various medicaments inject simultaneously；
3. being equipped with check valve, liquid reflux can be prevented；
4. self-cleaning can be realized, pipeline, injection pump corrosion are prevented.
Detailed description of the invention
Fig. 1 is the structure connection diagram of the utility model.
Appended drawing reference: 1- purge tank, 2- dosing unit, 3- computer, 4- check valve, 5- blowdown valve, 6- cable, 7- connection
Pipeline, 8- high-precision measuring pump.
Specific embodiment
As shown in Figure 1, a kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device, including the company of passing sequentially through
The dosing unit 2 and drain unit that adapter tube line 7 connects, drain unit are connected with well head；It further include metering units, the metering is single
Member is in connecting pipeline 7 between dosing unit 2 and drain unit, and metering units include high definition metering pump and computer 3,
Computer 3 controls injection rate, injection length, realizes data storage for controlling each high-precision measuring pump 8；Wherein, add
Prescription member 2 includes 3 pharmacy jars, and same high-precision measuring pump 8 is also 3, each pharmacy jar connects a high-precision measuring
8,3 high-precision measuring pumps 8 of pump connect computer 3 by cable 6.Valve, medicine are equipped in the outlet of each pharmacy jar
Agent tank is injected for storing medicament, high-precision measuring pump 8 for realizing the high-precision of medicament.Valve is for being connected to pharmacy jar and height
Precision metering pump 8, used time open, close when not used.The quantity of dosing unit 2 and high-precision measuring pump 8 is more according to medicament kind
Depending on few.It further include cleaning device, the cleaning device is purge tank 1, stores cleaning solution in purge tank 1；The purge tank 1
Pipeline between pharmacy jar and high-precision measuring pump 8 is connected, and junction is equipped with valve.The drain unit includes being located at
Check valve 4, blowdown valve 5 and the valve set gradually in connecting pipeline 7, when this valve dosing, open, and when not dosing closes；Blowdown
Valve 5 is for being discharged waste liquid, and check valve 4 is for preventing liquid reflux and preventing carbon dioxide from entering chemicals dosing plant.The utility model
Described in connecting pipeline 7 be corrosion-proof pipe line.
The specific implementation process of the utility model is as follows:
Corrosion inhibiter A, adding consistency a%(volumetric concentration), administration timing of drug t1；Corrosion inhibiter B, adding consistency b%(volumetric concentration),
Administration timing of drug t2；Adjuvant C, adding consistency c%(volumetric concentration), administration timing of drug t3.Three kinds of medicaments are defaulted as 100% and effectively contain
Amount；
1. executing cleaning process；
2. opening pharmacy jar, the pharmacy jar equipped with corrosion inhibiter B, the medicament pot valve equipped with adjuvant C that corrosion inhibiter A is housed
Door and drain unit valve；
3. passing through the dosing speed for the high-precision measuring pump that setting is connected with the pharmacy jar equipped with corrosion inhibiter A on computer 3
V1, dosing end time T+t1, the dosing speed V that pumps with the high-precision measuring that is connected of pharmacy jar equipped with corrosion inhibiter B2, dosing knot
Beam time T+t2, the dosing speed V that pumps with the high-precision measuring that is connected of pharmacy jar equipped with adjuvant C3, dosing end time T+
t3；Wherein, T is the dosing time started；V1=V * a%(m3/ h)；V2=V * b%(m3/ h)； V3=V * c%(m3/ h)；V is two
Carbonoxide injection rate (m3/ h)；
4. starting dosing；
5. dosing terminates, cleaning process is executed.
Wherein, cleaning process is as follows:
1. cleaning since first pharmacy jar, when cleaning a pharmacy jar, every other medicament tank valve is closed；
2. opening 1 valve of purge tank, the medicament tank valve to be cleaned is closed, opens the pharmacy jar to be cleaned and purge tank 1
The valve of connection closes the valve of drain unit, opens drain unit blowdown valve 5, sets an injection rate, starts clear
It washes；
3. successively cleaning dosing unit 2 in order；
4. closing all valves and blowdown valve 5 after to the cleaning of all pharmacy jars.
Claims (7)
1. a kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device, including passes sequentially through connecting pipeline (7) even
The dosing unit (2) and drain unit connect, drain unit are connected with well head；It is characterized by also including metering units, the meter
Amount unit is located in the connecting pipeline (7) between dosing unit (2) and drain unit, and metering units are additionally provided with computer (3), institute
It states and is connect between metering units and computer (3) by cable (6).
2. carbon dioxide injection pipeline corrosion protection according to claim 1 continuously adds corrosion inhibiter injection device, it is characterised in that:
Further include cleaning device, the cleaning device is purge tank (1), the purge tank (1) and dosing unit (2) and metering units it
Between pipeline be connected.
3. carbon dioxide injection pipeline corrosion protection according to claim 2 continuously adds corrosion inhibiter injection device, it is characterised in that:
The drain unit includes the check valve (4) on connecting pipeline (7).
4. carbon dioxide injection pipeline corrosion protection according to claim 3 continuously adds corrosion inhibiter injection device, it is characterised in that:
The drain unit further includes the blowdown valve (5) after check valve (4) on connecting pipeline (7).
5. carbon dioxide injection pipeline corrosion protection according to claim 4 continuously adds corrosion inhibiter injection device, it is characterised in that:
The metering units are that high-precision measuring pumps (8).
6. carbon dioxide injection pipeline corrosion protection according to claim 5 continuously adds corrosion inhibiter injection device, it is characterised in that:
The connecting pipeline (7) is corrosion-proof pipe line.
7. carbon dioxide injection pipeline corrosion protection according to claim 6 continuously adds corrosion inhibiter injection device, it is characterised in that:
The dosing unit (2) includes several pharmacy jars, and the high-precision measuring pump (8) is also multiple, the number of the pharmacy jar
It is equal with the high-precision measuring pump number of (8), and each pharmacy jar connects a high-precision measuring pump (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821108150.4U CN208456562U (en) | 2018-07-13 | 2018-07-13 | A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821108150.4U CN208456562U (en) | 2018-07-13 | 2018-07-13 | A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208456562U true CN208456562U (en) | 2019-02-01 |
Family
ID=65172085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821108150.4U Expired - Fee Related CN208456562U (en) | 2018-07-13 | 2018-07-13 | A kind of carbon dioxide injection pipeline corrosion protection continuously adds corrosion inhibiter injection device |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065332A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | A medicine system for oil field |
| CN112796709A (en) * | 2021-02-03 | 2021-05-14 | 南通华兴石油仪器有限公司 | Corrosion inhibitor dosing device for preventing carbon dioxide corrosion of oil and gas well |
| CN114776259A (en) * | 2022-05-25 | 2022-07-22 | 山东宏丰智能装备有限公司 | Integrated corrosion prevention system for inner pipe wall of continuous oil pipe |
-
2018
- 2018-07-13 CN CN201821108150.4U patent/CN208456562U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065332A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | A medicine system for oil field |
| CN112796709A (en) * | 2021-02-03 | 2021-05-14 | 南通华兴石油仪器有限公司 | Corrosion inhibitor dosing device for preventing carbon dioxide corrosion of oil and gas well |
| CN114776259A (en) * | 2022-05-25 | 2022-07-22 | 山东宏丰智能装备有限公司 | Integrated corrosion prevention system for inner pipe wall of continuous oil pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190201 Termination date: 20210713 |