CN207229333U - A kind of oil field nitrogen compression set - Google Patents
A kind of oil field nitrogen compression set Download PDFInfo
- Publication number
- CN207229333U CN207229333U CN201720960411.4U CN201720960411U CN207229333U CN 207229333 U CN207229333 U CN 207229333U CN 201720960411 U CN201720960411 U CN 201720960411U CN 207229333 U CN207229333 U CN 207229333U
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- nitrogen
- cylinder
- pipeline
- temperature
- exhaust end
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Abstract
Nitrogen injection oil recovery technique field is the utility model is related to, more particularly to a kind of oil field nitrogen compression set for being capable of preparing high-temp nitrogen.The device includes multiple cylinders and multiple coolers, a cooler is provided between adjacent two-stage cylinder, most final stage cylinder exhaust end connects most aftercooler by pipeline, most aftercooler connects solenoid valve I by pipeline, and inlet end and the exhaust end of every grade of cylinder are equipped with temperature sensor and pressure sensor.The utility model is realized in the case where not changing compressor arrangement, only gas circuit pipeline, which slightly need to be adjusted, can achieve the purpose that can make " cold " nitrogen can produce " heat " nitrogen again, improve the temperature of injection nitrogen, can effective heated oil reservoir, reduce viscosity of crude, increase crude oil volume, improve nitrogen flooding effect.
Description
Technical field：
Nitrogen injection oil recovery technique field is the utility model is related to, more particularly to a kind of oil field nitrogen for being capable of preparing high-temp nitrogen
Air pressure compression apparatus.
Background technology：
In the middle and later periods of oil field development, traditional water drive and polymer flooding Flooding Efficiency are increasingly worse, are badly in need of finding newly
Displacement technology.In recent years, the nitrogen injection oil recovery technique such as nitrogen flooding in oil field development using more and more extensive, in particular with
The development of nitrogen technology processed and Compressor Process, source nitrogen are easier to obtain than ever, it is contemplated that the technology is by as a kind of main
Improve the new technology of recovery ratio.
Compressor is one of capital equipment of nitrogen injection DP technology, its main function is to be compressed the nitrogen of injection
Supercharging, reaches gas injection pressure requirement.Oil field is mainly Reciprocting piston compressor with compressor, accounting up to 80%, its
With series of advantages such as operational efficiency is high, compression ratio is high, applied widely, flow-rate adjustment convenience.To meet different injections
Condition, the highest of Reciprocting piston compressor inject pressure up to 50MPa.Nitrogen can produce substantial amounts of heat in compression process,
And the lubricating oil for lubricating compressor mechanical part needs just work normally within the scope of certain temperature, more than certain temperature
The working life of compressor will be influenced, therefore compressor needs to be designed to multi-stage compression, is usually 3~5 grades, makes every grade of cylinder
Compression exhaust temperature be no more than the maximum temperature that lubricating oil can be born, and the nitrogen of every grade of cylinder discharge is needed through supercooling
(air-cooled), is reduced to certain value by temperature and is allowed for access next stage cylinder.Exhaust of the every grade of cylinder in the case of complete acting
Temperature may be up to 150 DEG C, and temperature is reduced to 20 DEG C~40 DEG C (north of china in winter can as low as 10 DEG C) after supercooling, enters back into next
Level cylinder or well head gas injection pipeline.That is the product gas temperature-averaging of nitrogen compressor only has 30 DEG C, under normal conditions far
Less than reservoir temperature.
Long-term a large amount of injection low temperature nitrogens give oil reservoir " cooling " in fact, reduce the viscosity of crude oil so that Flooding Efficiency is big
Give a discount.Therefore, it is necessary to existing note nitrogen compression set is improved.
Utility model content：
The technical problem to be solved by the present invention is to provide a kind of oil field nitrogen compression set, the arrangement achieves
In the case of not changing compressor arrangement, only gas circuit pipeline need to slightly be adjusted can reach can make " cold " nitrogen again can be with
Produce " heat " nitrogen purpose, improve injection nitrogen temperature, can effective heated oil reservoir, reduce viscosity of crude, increase crude oil body
Product, improves nitrogen flooding effect.Overcome the low deficiency of the product gas temperature of existing note nitrogen compression set discharge.
Technical solution adopted in the utility model is：A kind of oil field nitrogen compression set, including multiple cylinders and more
A cooler；A cooler is provided between adjacent two-stage cylinder, most final stage cylinder exhaust end connects most final stage by pipeline
Cooler, most aftercooler connect solenoid valve I by pipeline, and inlet end and the exhaust end of every grade of cylinder are equipped with temperature sensing
Device and pressure sensor, temperature sensor and pressure sensor are connected with control system, the most exhaust end of final stage cylinder with
Bypass line is connected, and solenoid valve II is set on bypass line.
Cylinder number is 4, and cooler number is 4.
The beneficial effects of the utility model are：The utility model is realized in the case where not changing compressor arrangement, only
Gas circuit pipeline need to slightly be adjusted can achieve the purpose that can make " cold " nitrogen can produce " heat " nitrogen again, improve injection
The temperature of nitrogen, can effective heated oil reservoir, reduce viscosity of crude, increase crude oil volume, improve nitrogen flooding effect.
Brief description of the drawings：
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structure diagram of the utility model.
Embodiment：
As shown in Figure 1, a kind of oil field nitrogen compression set, including 4 cylinders and 4 coolers；Adjacent two-stage cylinder
Between be provided with a cooler, most 1 exhaust end of final stage cylinder passes through pipeline and connects most aftercooler 3, most aftercooler 3
Solenoid valve I 4 is connected by pipeline, inlet end and the exhaust end of every grade of cylinder are equipped with temperature sensor and pressure sensor, temperature
Degree sensor and pressure sensor are connected with control system, and most the exhaust end of final stage cylinder 1 is connected with bypass line 2,
Solenoid valve II 5 is set on bypass line 2.
In use, the nitrogen (pressure is about 2MPa) of source nitrogen input is introduced into level-one cylinder and is compressed, it is compressed
High pressure-temperature nitrogen enters level-one cooler, and temperature enters back into next stage cylinder after reducing；The inlet end of every grade of cylinder and exhaust
End is equipped with temperature and pressure sensor, the temperature and pressure data of control system monitoring collection, if it exceeds arbitrary number of level cylinder
Maximum temperature or pressure, control system be automatically stopped equipment operation, protection it is safe for operation.
The utility model can make " cold " nitrogen and can produce again by controlling the folding of two solenoid valves to reach
The purpose of " heat " nitrogen：The solenoid valve II 5 on bypass line 2 is opened, and closes solenoid valve I 4, it is possible to which obtained maximum temperature reaches
150 DEG C of nitrogen；The solenoid valve II 5 on bypass line 2 is closed, and opens solenoid valve I 4, it is possible to is made higher than environment temperature
10 DEG C~15 DEG C of nitrogen.
It is understood that above with respect to the specific descriptions of the utility model, it is merely to illustrate the utility model and is not
The described technical solution of the utility model embodiment is limited to, it will be understood by those of ordinary skill in the art that, still can be with
Modify to the utility model or equivalent substitution, to reach identical technique effect；As long as satisfaction uses needs, all in this reality
Within new protection domain.
Claims (2)
1. a kind of oil field nitrogen compression set, including multiple cylinders and multiple coolers；It is characterized in that：Adjacent two-stage cylinder
Between be provided with a cooler, most final stage cylinder (1) exhaust end connects most aftercooler (3) by pipeline, and most final stage is cold
But device (3) connects solenoid valve I (4) by pipeline, and inlet end and the exhaust end of every grade of cylinder are equipped with temperature sensor and pressure
Sensor, temperature sensor and pressure sensor are connected with control system, most the exhaust end and bypass pipe of final stage cylinder (1)
Line (2) is connected, and solenoid valve II (5) is set on bypass line (2).
2. oil field described in accordance with the claim 1 nitrogen compression set, it is characterised in that：The cylinder number is 4, cooling
Device number is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720960411.4U CN207229333U (en) | 2017-08-03 | 2017-08-03 | A kind of oil field nitrogen compression set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720960411.4U CN207229333U (en) | 2017-08-03 | 2017-08-03 | A kind of oil field nitrogen compression set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207229333U true CN207229333U (en) | 2018-04-13 |
Family
ID=61856295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720960411.4U Expired - Fee Related CN207229333U (en) | 2017-08-03 | 2017-08-03 | A kind of oil field nitrogen compression set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207229333U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708843A (en) * | 2018-05-16 | 2018-10-26 | 昆山钜全金属工业有限公司 | A kind of compressed air circulatory system |
| CN113446202A (en) * | 2020-03-24 | 2021-09-28 | 中国石油天然气股份有限公司 | Gas compression equipment, self-temperature-control gas injection system and gas injection method |
| CN116221059A (en) * | 2023-02-28 | 2023-06-06 | 三一氢能有限公司 | Compression ratio regulating and controlling method and device for multistage compression system |
-
2017
- 2017-08-03 CN CN201720960411.4U patent/CN207229333U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708843A (en) * | 2018-05-16 | 2018-10-26 | 昆山钜全金属工业有限公司 | A kind of compressed air circulatory system |
| CN113446202A (en) * | 2020-03-24 | 2021-09-28 | 中国石油天然气股份有限公司 | Gas compression equipment, self-temperature-control gas injection system and gas injection method |
| CN116221059A (en) * | 2023-02-28 | 2023-06-06 | 三一氢能有限公司 | Compression ratio regulating and controlling method and device for multistage compression system |
| CN116221059B (en) * | 2023-02-28 | 2024-01-23 | 三一氢能有限公司 | Compression ratio regulating and controlling method and device for multistage compression system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20180803 |
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| CF01 | Termination of patent right due to non-payment of annual fee |