CN221405623U - Air-driven oil well gas detection device - Google Patents
Air-driven oil well gas detection device Download PDFInfo
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- CN221405623U CN221405623U CN202323293031.4U CN202323293031U CN221405623U CN 221405623 U CN221405623 U CN 221405623U CN 202323293031 U CN202323293031 U CN 202323293031U CN 221405623 U CN221405623 U CN 221405623U
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- gas
- probe rod
- detection device
- flow cell
- sampling pump
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 239000003129 oil well Substances 0.000 title abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 61
- 238000005070 sampling Methods 0.000 claims abstract description 52
- 230000006854 communication Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000003993 interaction Effects 0.000 claims description 10
- 230000007175 bidirectional communication Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 91
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 9
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 229930195733 hydrocarbon Natural products 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 4
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 methane hydrocarbon Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000000041 tunable diode laser absorption spectroscopy Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an air-driven oil well gas detection device, belonging to the technical field of oil extraction engineering; the device comprises an instrument box and a probe rod; a gas sampling pump, a gas flow cell and an electronic flowmeter which are sequentially connected are arranged in the instrument box; a gas sensor is arranged in the gas flow cell; the inlet of the gas sampling pump is externally connected with a probe rod through a gas inlet connector; the outlet of the electronic flowmeter is externally connected with the air outlet joint; the gas sampling pump, the gas flow cell and the electronic flowmeter are also respectively connected with a detection unit. The utility model can meet the requirements of rapid and accurate gas detection in the on-site oil extraction operation, on-site personnel can test the main output component content of the casing gas at any time, and is used for judging the total hydrocarbon (or methane), oxygen, carbon dioxide and nitrogen content of oil well output, recording the change condition of the output gas component content, knowing the composition and change condition of associated gas, being portable and easy to operate, being convenient for the on-site personnel to test at any time and having high practicability.
Description
Technical Field
The utility model belongs to the technical field of oil extraction engineering, and relates to a gas detection device for an air displacement oil well.
Background
The air injection oil displacement technology is an efficient and energy-saving technology. It promotes crude oil molecular movement and seepage by injecting a certain amount of air into the reservoir.
However, the safety control of the air injection oil displacement technology is also crucial, and the rapid and accurate detection of the concentration of oxygen, hydrocarbon, carbon dioxide, nitrogen and other gases in the produced gas of the oil well is the key point of the production efficiency and the safety control of the air injection oil displacement technology.
At present, the content of each component in the produced gas is mainly analyzed by a gas chromatograph, the method belongs to a laboratory analysis method, and the analysis result has larger hysteresis and is not beneficial to field operation. Therefore, there is a need to develop a convenient, quick and low cost field test device.
Disclosure of utility model
The utility model aims to solve the technical problems that in the prior art, hysteresis exists in detection of produced gas of an air-driven oil well and on-site operation is not facilitated, and provides a gas detection device of the air-driven oil well.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
The utility model provides an air-driven oil well gas detection device, which comprises an instrument box and a probe rod; a gas sampling pump, a gas flow cell and an electronic flowmeter which are sequentially connected are arranged in the instrument box; a gas sensor is arranged in the gas flow cell; the inlet of the gas sampling pump is externally connected with a probe rod through a gas inlet connector; the outlet of the electronic flowmeter is externally connected with the air outlet joint; the gas sampling pump, the gas flow cell and the electronic flowmeter are also respectively connected with a detection unit.
Further, the detection unit comprises a digital communication and control circuit, an embedded processor, a preposed signal processing circuit, a man-machine interaction interface and a battery power supply and management system; the input end of the digital communication and control circuit is connected with the gas sampling pump; the digital communication and control circuit is also in bidirectional communication with the embedded processor; the embedded processor is respectively and bidirectionally communicated with the preposed signal processing circuit and the man-machine interaction interface; the input end of the preposed signal processing circuit is respectively connected with the gas flow cell and the electronic flowmeter; the input end of the digital communication and control circuit is connected with a battery power supply and management system.
Further, the probe rod comprises a probe rod sampling tube, a probe rod precise filter and a probe rod handle which are sequentially connected; and the sample gas to be detected is filtered by the probe rod precise filter after passing through the probe rod sampling tube and is conveyed to the air inlet connector.
Further, a regulating valve is arranged between the gas sampling pump and the gas inlet connector.
Further, the regulating valve is a needle type regulating valve.
Further, the air inlet connector, the regulating valve, the gas sampling pump, the gas flow cell, the electronic flowmeter and the air outlet connector are in sealing connection through a corrosion-resistant sampling tube.
Further, the probe rod sampling tube, the probe rod precise filter and the probe rod handle are in sealing connection through the corrosion-resistant sampling tube.
Further, the gas sampling pump, the gas flow cell and the electronic flowmeter are respectively and electrically connected with the detection unit.
Further, the instrument box is a waterproof instrument box.
Further, the electronic flowmeter is a float flowmeter.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model discloses a gas detection device for an air displacement well, which is characterized in that dust and water vapor in sample gas are filtered through a probe rod sampling tube and a probe rod precise filter, then the sample gas is conveyed to a gas sampling pump through a gas inlet connector, the sample gas is subjected to data analysis after passing through a gas sensor, and the analyzed data are displayed on a human-computer interaction interface; the utility model can meet the requirement of rapid and accurate gas detection in the on-site oil extraction operation, on-site personnel can test the main output component content of the casing gas at any time, and is used for judging the total hydrocarbon (or methane), oxygen, carbon dioxide and nitrogen content of oil well output, recording the change condition of the output gas component content, knowing the composition and change condition of associated gas, playing a role in identifying and early warning gas channeling and indicating the utilization of the associated gas. The portable easy operation makes things convenient for on-the-spot personnel to test at any time, and the practicality is high.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the instrument canister of the present utility model;
FIG. 2 is a schematic view of the structure of the probe rod of the present utility model;
FIG. 3 is an internal structural view of an instrument cluster according to an embodiment of the utility model;
FIG. 4 is an interior top view of an instrument cluster according to an embodiment of the utility model;
fig. 5 is an exterior side view of an instrument canister according to an embodiment of the utility model.
Wherein: 1-an air inlet joint; 2-regulating valve; 3-a gas sampling pump; 4-a gas flow cell; 5-an electronic flowmeter; 6-an air outlet joint; 7-a digital communication and control circuit; an 8-embedded processor; 9-a preamble signal processing circuit; 10-a human-computer interaction interface; 11-a battery powered and management system; 12-instrument box; 13-a probe rod sampling tube; 14-a probe rod precise filter; 15-a probe handle; 16-a probe rod; 17-a power indicator light; 18-power switch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present utility model, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The utility model is described in further detail below with reference to the attached drawing figures:
Referring to FIG. 1, an embodiment of the present utility model discloses an air-driven well gas detection device, comprising an instrument box 12 and a probe 16; the instrument box 12 is internally provided with a gas sampling pump 3, a gas flow cell 4 and an electronic flowmeter 5 which are connected in sequence; a gas sensor is arranged in the gas flow cell 4; the inlet of the gas sampling pump 3 is externally connected with a probe rod 16 through the gas inlet joint 1; the outlet of the electronic flowmeter 5 is externally connected through an air outlet joint 6; the gas sampling pump 3, the gas flow cell 4 and the electronic flowmeter 5 are also respectively connected with a detection unit.
In a possible embodiment of the utility model, the detection unit comprises a digital communication and control circuit 7, an embedded processor 8, a pre-signal processing circuit 9, a man-machine interface 10 and a battery-powered and management system 11; the input end of the digital communication and control circuit 7 is connected with the gas sampling pump 3; the digital communication and control circuit 7 is also in bidirectional communication with the embedded processor 8; the embedded processor 8 is respectively in bidirectional communication with the preamble signal processing circuit 9 and the man-machine interaction interface 10; the input end of the preposed signal processing circuit 9 is respectively connected with the gas flow cell 4 and the electronic flowmeter 5; the input end of the digital communication and control circuit 7 is connected with a battery power supply and management system 11.
Referring to fig. 2, in one possible embodiment of the present utility model, the probe 16 comprises a probe sampling tube 13, a probe precision filter 14, and a probe handle 15 connected in sequence; the sample gas to be detected is filtered by the probe rod precision filter 14 after passing through the probe rod sampling tube 13 and is conveyed to the air inlet joint 1.
In a possible embodiment of the utility model, a regulating valve 2 is also arranged between the gas sampling pump 3 and the gas inlet connection 1. Preferably, the regulating valve 2 is a needle type regulating valve.
In one possible embodiment of the utility model, the air inlet joint 1, the regulating valve 2, the gas sampling pump 3, the gas flow cell 4, the electronic flowmeter 5 and the air outlet joint 6 are connected in a sealing way through corrosion-resistant sampling pipes.
In one possible embodiment of the present utility model, the probe sampling tube 13, the probe precision filter 14 and the probe handle 15 are sealingly connected by a corrosion resistant sampling tube.
In a possible embodiment of the present utility model, the connection manner between the gas sampling pump 3, the gas flow cell 4 and the electronic flowmeter 5 and the detection unit is electrical connection.
In one possible embodiment of the utility model, the instrument pod 12 is preferably a waterproof instrument pod. The electronic flowmeter 5 is a float flowmeter.
Examples:
referring to fig. 3 and 4, the embodiment of the invention provides a portable air displacement well gas detection device; comprises an instrument box 12 and a probe rod 16, a portable handle for supporting the instrument box 12, and an anti-skid and anti-wear foot pad. The instrument box 12 is internally provided with a gas sampling pump 3, a gas flow cell 4 and an electronic flowmeter 5 which are connected in sequence; a gas sensor is arranged in the gas flow cell 4; the inlet of the gas sampling pump 3 is externally connected with a probe rod 16 through the gas inlet joint 1; the outlet of the electronic flowmeter 5 is externally connected through an air outlet joint 6; the gas sampling pump 3, the gas flow cell 4 and the electronic flowmeter 5 are also respectively connected with a detection unit. The detection unit comprises a digital communication and control circuit 7, an embedded processor 8, a pre-signal processing circuit 9, a man-machine interaction interface 10 and a battery power supply and management system 11; the input end of the digital communication and control circuit 7 is connected with the gas sampling pump 3; the digital communication and control circuit 7 is also in bidirectional communication with the embedded processor 8; the embedded processor 8 is respectively in bidirectional communication with the preamble signal processing circuit 9 and the man-machine interaction interface 10; the input end of the preposed signal processing circuit 9 is respectively connected with the gas flow cell 4 and the electronic flowmeter 5; the input end of the digital communication and control circuit 7 is connected with a battery power supply and management system 11. The probe rod 16 comprises a probe rod sampling tube 13, a probe rod precise filter 14 and a probe rod handle 15 which are sequentially connected; the sample gas to be detected is filtered by the probe rod precision filter 14 after passing through the probe rod sampling tube 13 and is conveyed to the air inlet joint 1. And a regulating valve 2 is further arranged between the gas sampling pump 3 and the gas inlet joint 1. The instrument box 12 is also provided with a power indicator light 17, a power switch 18 and a USB interface.
Preferably, the model of the battery power supply and management system 11 is NK-BAT-C-01, and the manufacturer is Xishan very good; the model of the digital communication and control circuit 7 is NK-COM-485, and the manufacturer is Xian very good; the model of the embedded processor 8 is STM32F103VCT6, and the manufacturer is Western An very good; the model of the pre-signal processing circuit 9 is NK-GAS-A, and the manufacturer is Xishuang. The electronic flowmeter 5 is a float flowmeter.
In the embodiment, dust and water vapor in the sample gas are filtered through a probe rod sampling tube 13 and a probe rod precise filter 14; through the air inlet connection 1, into the gas sampling pump 3. After passing through the gas sensor, the sample gas enters the detection unit for data analysis. The analyzed data is directly displayed on the human-computer interaction interface 10; the man-machine interaction interface 10 can be set and operated by operating a touch screen; the data displayed by the interface can be read directly by manpower. The data can be exported or transmitted to a data acquisition center through a USB flash disk through the communication interface or USB interface connection or wireless transmission of the digital communication and control circuit 7; and the data acquisition center further transmits the data to an Internet data cloud platform. The embodiment of the utility model combines the detection requirement of on-site operation and the manufacturing economy of the whole device, and mainly detects the concentration of gases such as oxygen, methane, non-methane hydrocarbon, carbon dioxide, nitrogen and the like. The method for measuring methane adopts a laser spectrum absorption Technology (TDLAS) and has the advantages of high sensitivity, good stability, strong cross interference resistance and the like. Hydrocarbon and carbon dioxide use non-dispersive infrared gas analysis (NDIR) technology with a mature technology and low cost design. Oxygen is the most mature fuel cell method at present. The final calculation process of the nitrogen concentration is as follows: nitrogen concentration = 100% -oxygen concentration-methane concentration-hydrocarbon concentration-carbon dioxide concentration.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The air displacement well gas detection device is characterized by comprising an instrument box (12) and a probe rod (16); a gas sampling pump (3), a gas flow cell (4) and an electronic flowmeter (5) which are sequentially connected are arranged in the instrument box (12); a gas sensor is arranged in the gas flow cell (4); an inlet of the gas sampling pump (3) is externally connected with a probe rod (16) through an air inlet connector (1); the outlet of the electronic flowmeter (5) is externally connected with the air outlet joint (6); the gas sampling pump (3), the gas flow cell (4) and the electronic flowmeter (5) are also respectively connected with a detection unit.
2. The air displacement well gas detection device according to claim 1, wherein the detection unit comprises a digital communication and control circuit (7), an embedded processor (8), a pre-signal processing circuit (9), a man-machine interface (10) and a battery power supply and management system (11); the input end of the digital communication and control circuit (7) is connected with the gas sampling pump (3); the digital communication and control circuit (7) is also in bidirectional communication with the embedded processor (8); the embedded processor (8) is respectively and bi-directionally communicated with the preposed signal processing circuit (9) and the man-machine interaction interface (10); the input end of the preposed signal processing circuit (9) is respectively connected with the gas flow cell (4) and the electronic flowmeter (5); the input end of the digital communication and control circuit (7) is connected with a battery power supply and management system (11).
3. The air displacement well gas detection device according to claim 2, wherein the probe rod (16) comprises a probe rod sampling tube (13), a probe rod precise filter (14) and a probe rod handle (15) which are sequentially connected; the sample gas to be detected is filtered by a probe rod precision filter (14) after passing through a probe rod sampling tube (13) and is conveyed to the air inlet joint (1).
4. A gas detection device for an air displacement well according to claim 3, characterized in that a regulating valve (2) is further arranged between the gas sampling pump (3) and the gas inlet joint (1).
5. The air displacement well gas detection device according to claim 4, wherein the regulating valve (2) is a needle type regulating valve.
6. The air displacement well gas detection device according to claim 5, wherein the air inlet joint (1), the regulating valve (2), the gas sampling pump (3), the gas flow cell (4), the electronic flowmeter (5) and the air outlet joint (6) are in sealing connection through corrosion-resistant sampling pipes.
7. The air displacement well gas detection device according to claim 6, wherein the probe rod sampling tube (13), the probe rod precision filter (14) and the probe rod handle (15) are in sealing connection through corrosion-resistant sampling tubes.
8. The air displacement well gas detection device according to claim 7, wherein the gas sampling pump (3), the gas flow cell (4) and the electronic flowmeter (5) are respectively electrically connected with the detection unit.
9. The air displacement well gas detection apparatus as recited in claim 8, wherein the instrument box (12) is a waterproof instrument box.
10. The air displacement well gas detection device according to claim 9, wherein the electronic flowmeter (5) is a float flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323293031.4U CN221405623U (en) | 2023-12-04 | 2023-12-04 | Air-driven oil well gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323293031.4U CN221405623U (en) | 2023-12-04 | 2023-12-04 | Air-driven oil well gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221405623U true CN221405623U (en) | 2024-07-23 |
Family
ID=91920521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323293031.4U Active CN221405623U (en) | 2023-12-04 | 2023-12-04 | Air-driven oil well gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221405623U (en) |
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- 2023-12-04 CN CN202323293031.4U patent/CN221405623U/en active Active
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