CN220357036U - Mixed gas percentage content measurement assembly - Google Patents
Mixed gas percentage content measurement assembly Download PDFInfo
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- CN220357036U CN220357036U CN202322028596.3U CN202322028596U CN220357036U CN 220357036 U CN220357036 U CN 220357036U CN 202322028596 U CN202322028596 U CN 202322028596U CN 220357036 U CN220357036 U CN 220357036U
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- gas
- liquid separation
- pipeline
- separation pipe
- electric valve
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- 238000005259 measurement Methods 0.000 title claims description 37
- 238000000926 separation method Methods 0.000 claims abstract description 83
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 238000010992 reflux Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 22
- 239000012530 fluid Substances 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000287 crude extract Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a mixed gas percentage content measuring assembly which comprises a gas-liquid separation pipe A, a gas-liquid separation pipe B and a controller, wherein a measuring inlet pipeline, a connecting pipeline and a separating pipeline A which are communicated with the inside of the gas-liquid separation pipe A are respectively arranged on the gas-liquid separation pipe A, an electric valve A is arranged on the measuring inlet pipeline, the other end of the connecting pipeline is communicated with the gas-liquid separation pipe B, an electric valve B is arranged on the connecting pipeline, one end of the separating pipeline A, which is far away from the gas-liquid separation pipe A, is connected with a measuring outlet pipeline, an electric valve C is arranged on the measuring outlet pipeline, a gas concentration measuring instrument is arranged at the top of the gas-liquid separation pipe B, a separating pipeline B which is communicated with the inside of the gas-liquid separation pipe B is arranged at the bottom of the gas-liquid separation pipe B, an emptying pipeline is arranged at one end of the separating pipeline B, and an electric valve D is arranged on the emptying pipeline. The utility model is suitable for the characteristics of oil fields, has high cost performance, and can measure the gas components and the gas percentage content under pressure.
Description
Technical Field
The utility model belongs to the technical field of fluid measurement, and particularly relates to a component for measuring percentage content of mixed gas.
Background
At present, with the tight layout of national energy safety strategy, the recovery efficiency of the old oil field is required to be improved, and the modes adopted at present are water injection, carbon dioxide injection, nitrogen injection, steam injection and the like. At present, the CCUS technology which is being widely popularized at home and abroad reduces the viscosity of crude oil, improves the fluidity ratio of crude oil and water, expands the volume of crude oil, extracts and vaporizes light hydrocarbons in crude oil, has the effects of miscible phase, molecular diffusion, reduces interfacial tension, dissolves gas flooding, improves the permeability and other mechanisms to drive oil through carbon dioxide, improves the recovery ratio, and can simultaneously enable a large amount of carbon dioxide to be buried underground to play a role in reducing emission of greenhouse gases. The oil field needs to master the percentage content of gas-phase carbon dioxide in the oil-gas-water mixed fluid produced by the oil well, and is used for analyzing the distribution condition of carbon dioxide injected into the stratum and selecting the anti-corrosion material of the liquid receiving. The oil mist in the mixed fluid has a particularly large influence on the gas percentage content measuring sensor, and the sensor can be disabled by a small amount. At present, various online gas analysis measuring instruments at home and abroad are numerous, the price is high, the sensor is easy to be polluted to cause frequent faults, and the measuring equipment is required to work under normal pressure. The measuring instrument which has high cost performance and can measure the percentage content of medium-pressure and high-pressure online gases is urgently needed.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, and provides a component for measuring the percentage content of mixed gas, which is suitable for the characteristics of oil fields, has high cost performance and can measure the gas components and the percentage content of gas under pressure.
The technical scheme adopted by the utility model is as follows: the utility model provides a mixed gas percentage content measurement subassembly, includes gas-liquid separation pipe A, gas-liquid separation pipe B and controller, be equipped with respectively on the gas-liquid separation pipe A rather than the inside measurement entry pipeline, connecting line and separation pipeline A of intercommunication, be equipped with motorised valve A on the measurement entry pipeline, the connecting line other end and gas-liquid separation pipe B intercommunication, be equipped with motorised valve B on the connecting line, separation pipeline A is kept away from gas-liquid separation pipe A's one end and is connected with the measurement export pipeline, be equipped with motorised valve C on the measurement export pipeline, gas-liquid separation pipe B top is equipped with the gas concentration measuring apparatu, gas-liquid separation pipe B bottom be equipped with rather than the separation pipeline B of inside intercommunication, separation pipeline B keeps away from gas-liquid separation pipe B's one end is equipped with the blow-down line, be equipped with motorised valve D on the blow-down line, motorised valve A, motorised valve B, motorised valve C, motorised valve D and gas concentration measuring apparatu all are connected with the controller electricity.
In one embodiment, the separation line A and the separation line B are communicated through a return line.
The utility model has the beneficial effects that:
1. the device has two working states of a low-voltage continuous working state and a sampling high-voltage working state, and can be set and switched according to actual conditions;
2. the sampling high-pressure working state comprises a stop measurement state, a sampling static state and a measurement state, and can be switched through the opening and closing of the electric valve so as to meet the requirements under different conditions.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment 1 of the present utility model;
fig. 2 is a schematic structural diagram of embodiment 2 of the present utility model.
In the figure: 1. measuring an inlet line; 2. an electric valve A; 3. an electric valve B; 4. a gas-liquid separation pipe A; 5. a gas concentration measuring instrument; 6. a gas-liquid separation pipe B; 7. a return line; 8. an electric valve C; 9. an electric valve D; 10. a controller; 11. a vent line; 12. a connecting pipeline; 13. measuring an outlet line; 14. separating the pipeline A; 15. separating the pipeline B.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
Example 1:
as shown in fig. 1, a mixed gas percentage content measurement assembly comprises a gas-liquid separation tube A4, a gas-liquid separation tube B6 and a controller 10, wherein a measurement inlet pipeline 1, a connection pipeline 12 and a separation pipeline a14 which are communicated with the inside of the gas-liquid separation tube A4 are respectively arranged on the gas-liquid separation tube A4, an electric valve A2 is arranged on the measurement inlet pipeline 1, the other end of the connection pipeline 12 is communicated with the gas-liquid separation tube B6, an electric valve B3 is arranged on the connection pipeline 12, one end, far away from the gas-liquid separation tube A4, of the separation pipeline a14 is connected with a measurement outlet pipeline 13, an electric valve C8 is arranged on the measurement outlet pipeline 13, a gas concentration measuring instrument 5 is arranged at the top of the gas-liquid separation tube B6, a separation pipeline B15 communicated with the inside of the gas-liquid separation tube B6 is arranged at the bottom of the gas-liquid separation tube B6, an electric valve D9 is arranged on one end, far away from the gas-liquid separation tube B6, an electric valve D9 is arranged on the electric valve B11, and the electric valve A2, the electric valve B3, the electric valve C8, the electric valve D9 and the electric valve D9 are electrically connected with the controller 10.
The embodiment is in a sampling high-pressure working state, in which the working mode is sampling intermittent measurement, the measurement interval time can be set arbitrarily, and the time of the stationary state of the sampling gas can also be set. Meanwhile, under the working state, the device comprises three states of a stop measurement state, a sampling static state and a measurement state, and the device is specifically as follows:
1. stop measurement state
In this state, the controller 10 operates to control the electric valves A2 and C8 to open and close the electric valves B3 and D9. The mixed fluid enters the gas-liquid separation tube A4 through the measurement inlet line 1, enters the measurement outlet line 13 through the separation line a14, and is discharged through the measurement outlet line 13.
2. Sampling stationary state
In this state, the controller 10 is operated, and the controller 10 controls the electric valve A2 and the electric valve C8 to be closed; since the measurement state is stopped, the mixed fluid continues to enter the gas-liquid separation tube A4, and thus when the electric valve A2 and the electric valve C8 are closed, the mixed fluid exists in the gas-liquid separation tube A4, so that the mixed fluid is in a stationary state in the whole measurement assembly.
3. Measuring state
The controller 10 works to control the electric valve D9 to be opened and then control the electric valve B3 under the condition of matching with the static sampling state; because the mixed fluid exists in the gas-liquid separation pipe A4 and is subjected to primary gas-liquid separation in the static sampling state, when the electric valve B3 is opened, the mixed fluid can enter the gas-liquid separation pipe B6 to be subjected to secondary gas-liquid separation, so that the gas concentration measuring instrument 5 can measure the gas percentage content.
Example 2:
as shown in fig. 2, a component for measuring percentage content of mixed gas comprises a gas-liquid separation tube A4, a gas-liquid separation tube B6 and a controller 10, wherein a measurement inlet pipeline 1, a connection pipeline 12 and a separation pipeline a14 which are communicated with the inside of the gas-liquid separation tube A4 are respectively arranged on the gas-liquid separation tube A4, an electric valve A2 is arranged on the measurement inlet pipeline 1, the other end of the connection pipeline 12 is communicated with the gas-liquid separation tube B6, an electric valve B3 is arranged on the connection pipeline 12, one end, far away from the gas-liquid separation tube A4, of the separation pipeline a14 is connected with a measurement outlet pipeline 13, an electric valve C8 is arranged on the measurement outlet pipeline 13, a gas concentration measuring instrument 5 is arranged at the top of the gas-liquid separation tube B6, a separation pipeline B15 communicated with the inside of the gas-liquid separation tube B6 is arranged at the bottom of the gas-liquid separation tube B6, an electric valve D9 is arranged on one end, an electric valve D9 is arranged on the electric pipeline 11, and the electric valve A2, the electric valve B3, the electric valve C8 and the electric valve D9 are electrically connected with the controller 10.
In this embodiment, the separation line a14 and the separation line B15 are communicated with each other through the return line 7.
The embodiment is in a low-voltage continuous working state. During measurement, the controller 10 operates to control the electric valves A2, B3 and C8 to be opened and the electric valve D9 to be closed. The mixed fluid enters a gas-liquid separation pipe A4 from a measurement inlet pipeline 1 for primary gas-liquid separation, the mixed fluid after primary gas-liquid separation enters a gas-liquid separation pipe B6 for secondary gas-liquid separation, and a gas concentration measuring instrument 5 measures the gas percentage content in real time. The liquid separated by the gas-liquid separation pipe A4 enters the measuring outlet pipeline 13 through the separation pipeline A14 and is discharged out of the assembly; the liquid separated by the gas-liquid separation tube B6 and the measured gas separation line B15 and the return line 7 enter the measurement outlet line 13 and are discharged out of the present assembly.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (2)
1. The utility model provides a mixed gas percentage content measurement subassembly which characterized in that: including gas-liquid separation pipe A (4), gas-liquid separation pipe B (6) and controller (10), be equipped with respectively on gas-liquid separation pipe A (4) rather than inside measurement entry pipeline (1), connecting line (12) and separation pipeline A (14) of intercommunication, be equipped with motorised valve A (2) on measurement entry pipeline (1), connecting line (12) other end and gas-liquid separation pipe B (6) intercommunication, be equipped with motorised valve B (3) on connecting line (12), the one end that gas-liquid separation pipe A (4) was kept away from to separation pipeline A (14) is connected with measurement outlet pipeline (13), be equipped with motorised valve C (8) on measurement outlet pipeline (13), gas-liquid separation pipe B (6) top is equipped with gas concentration measuring instrument (5), gas-liquid separation pipe B (6) bottom be equipped with rather than inside separation pipeline B (15), the one end that gas-liquid separation pipe B (6) was kept away from to separation pipeline B (15) is equipped with atmospheric line (11), be equipped with motorised valve D (9), motorised valve C (10) and gas concentration homoenergetic valve C (10).
2. The component for measuring percentage content of mixed gas according to claim 1, wherein: the separation line A (14) and the separation line B (15) are communicated through a reflux line (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322028596.3U CN220357036U (en) | 2023-07-28 | 2023-07-28 | Mixed gas percentage content measurement assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322028596.3U CN220357036U (en) | 2023-07-28 | 2023-07-28 | Mixed gas percentage content measurement assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220357036U true CN220357036U (en) | 2024-01-16 |
Family
ID=89505950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322028596.3U Active CN220357036U (en) | 2023-07-28 | 2023-07-28 | Mixed gas percentage content measurement assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220357036U (en) |
-
2023
- 2023-07-28 CN CN202322028596.3U patent/CN220357036U/en active Active
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