CN219142835U - Crude oil moisture content on-line measuring device - Google Patents
Crude oil moisture content on-line measuring device Download PDFInfo
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- CN219142835U CN219142835U CN202223191322.8U CN202223191322U CN219142835U CN 219142835 U CN219142835 U CN 219142835U CN 202223191322 U CN202223191322 U CN 202223191322U CN 219142835 U CN219142835 U CN 219142835U
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Abstract
The utility model discloses an on-line detection device for the water content of crude oil, which comprises a first pipeline and a second pipeline arranged below the first pipeline; a branch pipe inlet and a branch pipe outlet are arranged on the first pipeline along the crude oil conveying direction; two ends of the second pipeline are respectively communicated with the branched pipe inlet and the branched pipe outlet, the first pipeline is provided with a stop valve, the stop valve is arranged between the branched pipe inlet and the branched pipe outlet, and a detection probe is inserted into the second pipeline; according to the crude oil moisture content online detection device, the second pipeline is arranged below the first pipeline for conveying the crude oil, when the moisture content of the crude oil is required to be detected, the first pipeline and the second pipeline are simultaneously conducted, and all or most of the crude oil in the conveyed crude oil enters the second pipeline below due to the action of the gravity of the crude oil, so that the detection probe inserted into the second pipeline can be ensured to be completely immersed in the crude oil, the moisture content of the crude oil is detected, and the detection precision is high.
Description
Technical Field
The utility model belongs to the technical field of crude oil detection, and particularly relates to an online detection device for the water content of crude oil.
Background
In the petroleum industry, the water content of crude oil is an important index, the water level and the oil layer position of an oil well can be predicted through the water content of the crude oil, the yield and the exploitation value of the crude oil are estimated, the exploitation degree is predicted, a corresponding exploitation scheme is formulated, and the prediction of the exploitation life of the oil well has very important significance. The water content of the crude oil has great influence on the exploitation, gathering and transportation, dehydration, metering, sales, refining and the like of the crude oil, the water content of the crude oil needs to be accurately and timely known in the oil field production, the working state of the oil well is estimated through the water content of the crude oil, the automatic management of the oil field is improved, and the production efficiency is improved.
In the prior art, when the water content of crude oil is detected online, more gas in an oil well is found to be discharged along with the crude oil, so that the problem that the lower part of a pipeline for conveying the crude oil is gas and the upper part of the crude oil is gas can occur, and the problem that the detection probe cannot be completely immersed in the crude oil can occur when the detection probe is directly inserted into the pipeline for conveying the crude oil according to the conventional method, so that the detection precision is seriously affected.
Disclosure of Invention
The utility model aims to provide an on-line detection device for the water content of crude oil, which solves the problem that a detection probe cannot be immersed due to gas and oil separation caused by more gas in crude oil output in real time when crude oil is detected on line in the prior art, and solves the problem that the detection precision is lower when the water content of crude oil is detected on line.
The utility model relates to an on-line detection device for the water content of crude oil, which comprises an oil delivery pipe for delivering crude oil and a crude oil water content detector inserted into the oil delivery pipe, wherein the oil delivery pipe comprises a first pipeline and a second pipeline, wherein the first pipeline is transversely arranged, and the second pipeline is arranged below the first pipeline; a branch pipe inlet and a branch pipe outlet are arranged on the first pipeline along the crude oil conveying direction; the two ends of the second pipeline are respectively communicated with the branched pipe inlet and the branched pipe outlet, a stop valve is arranged on the first pipeline and arranged between the branched pipe inlet and the branched pipe outlet, and the crude oil water content detector comprises a detection probe inserted into the second pipeline and a gauge head connected with the detection probe.
Preferably, the second conduit diameter is smaller than the first conduit diameter.
Preferably, the branched pipe inlet and the branched pipe outlet are both arranged on the lower circumferential surface of the first pipeline.
Preferably, the second pipeline comprises a first section connected with the branched pipe outlet and a second section connected with the first section and the branched pipe inlet, the first section is arranged vertically, and the detection probe is inserted into the first section.
Preferably, the second section is a metal cylindrical tube, the detection probe is vertically inserted into the second section, and the detection probe and the second section are coaxially arranged.
Preferably, the stop valve is a solenoid valve.
Preferably, the gauge outfit comprises a gauge outfit body and a display screen which is arranged on the gauge outfit body in an external way and used for displaying the water content of crude oil.
The on-line detection device for the water content of the crude oil has the beneficial effects that: the second pipeline is arranged below the first pipeline for conveying the crude oil, when the water content of the crude oil is required to be detected, the first pipeline and the second pipeline are simultaneously conducted, and all or most of the crude oil in the conveyed crude oil enters the second pipeline below due to the gravity action of the crude oil and fills the second pipeline and is discharged from a branch pipe outlet, so that a detection probe inserted into the second pipeline can be ensured to be completely immersed in the crude oil, the water content of the crude oil is detected, and the detection precision is higher; meanwhile, a small part of crude oil and gas output by the same crude oil are conveyed by the first pipeline above, so that simple gas-liquid separation is realized.
Drawings
FIG. 1 is a schematic diagram of an on-line crude oil water content detection device according to the technical scheme of the utility model.
Fig. 2 is a schematic diagram of another embodiment of an on-line device for detecting water content of crude oil according to the technical scheme of the utility model.
FIG. 3 is a schematic diagram of another embodiment of an on-line device for detecting water content of crude oil according to the present utility model.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to specific embodiments and drawings attached to the specification.
As shown in fig. 1, the crude oil water content online detection device in the technical scheme of the utility model comprises an oil delivery pipe for delivering crude oil and a crude oil water content detector 6 inserted into the oil delivery pipe, wherein the crude oil water content detector detects the water content of crude oil delivered in the oil delivery pipe in real time. The oil delivery pipe comprises a first pipeline 1 which is transversely arranged and a second pipeline 4 which is arranged below the first pipeline 1; a branch pipe inlet 2 and a branch pipe outlet 3 are arranged on the first pipeline 1 along the crude oil conveying direction; two ends of the second pipeline 4 are respectively communicated with the branch pipe inlet 2 and the branch pipe outlet 3. The first pipeline 1 is provided with a stop valve 5, and the stop valve 5 is arranged between the branch pipe inlet 2 and the branch pipe outlet 3. The crude oil water content detector 6 includes a detection probe 62 inserted into the second pipe 4 and a gauge head 61 connected to the detection probe 62.
When crude oil is normally conveyed, the stop valve 5 arranged on the first pipeline 1 can be in a closed state or an open state, and the crude oil can be conveyed by the second pipeline 4 or the first pipeline 1 and the second pipeline 4 can be simultaneously conveyed. Or the stop valve 5 can be controlled to be intermittently opened and closed, so that various conveying paths of crude oil are realized, the problems of long-time stay and deposition of crude oil in the first pipeline 1 or the second pipeline 4 are avoided, and the real-time conveying of the crude oil in the first pipeline 1 and the second pipeline 4 is ensured.
When the water content of the crude oil is required to be detected, the stop valve 5 is closed first, so that the crude oil is conveyed by the second pipeline 4, the crude oil deposited in the second pipeline 4 is discharged, and the crude oil conveyed in the second pipeline 4 is ensured to be output in real time by an oil well. Then, the stop valve 5 is opened, and when the stop valve is in an opened state, the crude oil in the crude oil output by the oil well in real time enters the second pipeline 4 due to the weight effect and is conveyed by the second pipeline 4. The gas which is simultaneously output along with the crude oil is conveyed by the first pipeline 1 above because the density is smaller than that of the crude oil, so that simple gas-liquid separation is realized. The crude oil entering the second pipe 4 fills the second pipe 4 and is discharged from the branch pipe outlet 3 into the first pipe 1, and is continuously conveyed forward. The detection probe 62 inserted into the second pipeline 4 can be completely immersed in crude oil, so that the detection of the water content of the crude oil in the crude oil conveyed in the second pipeline 4 in real time is realized, the on-line detection of the water content of the crude oil is realized, and the detection precision of the water content of the crude oil is improved.
After the detection is finished, the stop valve 5 is closed, so that the crude oil and the gas output simultaneously with the crude oil are all conveyed by the second pipeline 4, the crude oil in the second pipeline 4 can be completely discharged, the crude oil deposited in the second pipeline 4 is discharged, the replacement of the crude oil is finished, and the deposition of the crude oil is avoided.
The diameter of the second pipeline 4 is smaller than that of the first pipeline 1, so that the second pipeline is ensured to be full of crude oil, and then the crude oil is discharged from the branch pipe outlet 3 after being full of the second pipeline, so that the detection probe 62 can be completely immersed by the crude oil in the second pipeline 4.
The branch pipe inlet 2 and the branch pipe outlet 3 are both arranged on the lower circumferential surface of the first pipeline 1, crude oil conveyed in the first pipeline 1 can quickly and smoothly enter the second pipeline 4, the problem that after the stop valve 5 on the first pipeline 1 is opened, gas which is output simultaneously with the crude oil enters the second pipeline and the problem that the detection accuracy is affected due to the fact that gas exists in the second pipeline 4 when the water content of the crude oil is detected is avoided.
The second conduit 4 comprises a first section 42 connected to the manifold outlet 3 and a second section 41 connecting the first section 42 to the manifold inlet 2. The first section 42 is disposed vertically, and the detection probe 62 is inserted into the first section 42. The first section 42 is arranged vertically, so that the first section 42 is ensured to be fully filled with the second pipeline 4, and meanwhile, the second section 42 is also ensured to be fully filled with the crude oil, namely, the detection probe 62 is fully immersed by the crude oil when the water content of the crude oil is detected online, and the detection precision is ensured.
The second section 42 is a metal cylindrical tube, the detection probe 62 is inserted into the second section 42 in a vertical shape, and the detection probe 62 is coaxially disposed with the second section 42. The detection probe 62 is vertical and is inserted into the second section coaxially with the second section, facilitating the installation of the detection probe.
The stop valve is an electromagnetic valve, so that the stop valve 5 is automatically controlled to be opened and closed, the operation is simple, and the automatic detection is realized.
The gauge head 61 comprises a gauge head body and a display screen which is arranged on the gauge head body in an external mode and used for displaying the water content of crude oil, and is convenient for more intuitively and directly reading the water content of crude oil detected in real time.
In order to facilitate the installation of the first pipeline 1 and the second pipeline 4, as shown in fig. 1, 2 and 3, three installation schematic diagrams of the first pipeline 1 and the second pipeline 4, that is, three embodiments of the crude oil water content online detection device are provided. In fig. 1, the first pipeline and the second pipeline are horizontally installed, so that the installation is simple and the structure is regular. However, for some special installation positions, the horizontal state of the pipeline cannot be completely ensured, and as shown in fig. 2, the first pipeline 1 and the second pipeline 4 can be transversely and obliquely installed at a small angle, and the crude oil conveying direction can be from high end to low end or from low end to high end. In particular locations, such as where the installation is relatively compact, it is not convenient to arrange the second pipe 4, and the second pipe 4 may be provided in a partially curved shape, simply by ensuring that the first section 41 of the second pipe 4 is connected vertically below the first pipe 1, as shown in fig. 3.
In the technical scheme, the crude oil water content detector 6 can be a crude oil water content ultrasonic detector, and when the crude oil water content detector 6 is a crude oil water content ultrasonic detector, the detection probe is an ultrasonic detection probe, and the crude oil water content is measured by adopting an ultrasonic sound velocity method. The crude oil water content detector 6 may be a capacitance sensing detector; when the crude oil water content detector 6 is a capacitance sensing detector, the detection probe is a capacitance sensor detection probe. The crude oil water content detector 6 can be a microwave detector, the crude oil water content detector 6 is a microwave detection probe, and the crude oil water content is measured by a microwave detection method. The method for measuring the water content of the crude oil by adopting the ultrasonic detector, the capacitance sensing detector or the microwave detector is a common method for measuring the water content of the crude oil by a person skilled in the art.
While the present utility model has been described above by way of example with reference to the embodiments and the accompanying drawings, it is apparent that the specific implementation of the present utility model is not limited by the foregoing, and it is within the scope of the present utility model to apply the inventive concept and technical solution to other situations without any substantial improvement or improvement.
Claims (7)
1. The crude oil water content online detection device comprises an oil delivery pipe for delivering crude oil and a crude oil water content detector inserted into the oil delivery pipe, and is characterized in that the oil delivery pipe comprises a first pipeline and a second pipeline, wherein the first pipeline is transversely arranged, and the second pipeline is arranged below the first pipeline; a branch pipe inlet and a branch pipe outlet are arranged on the first pipeline along the crude oil conveying direction; the two ends of the second pipeline are respectively communicated with the branched pipe inlet and the branched pipe outlet, a stop valve is arranged on the first pipeline and arranged between the branched pipe inlet and the branched pipe outlet, and the crude oil water content detector comprises a detection probe inserted into the second pipeline and a gauge head connected with the detection probe.
2. The crude oil water content online detection device of claim 1, wherein the second pipe diameter is smaller than the first pipe diameter.
3. The crude oil water content online detection device according to claim 1, wherein the branch pipe inlet and the branch pipe outlet are both arranged on the lower circumferential surface of the first pipeline.
4. The crude oil water content online detection device according to claim 1, wherein the second pipeline comprises a first section connected with the branched pipe outlet and a second section connected with the first section and the branched pipe inlet, the first section is arranged vertically, and the detection probe is inserted into the first section.
5. The device for on-line detection of water content of crude oil according to claim 4, wherein the second section is a metal cylindrical tube, the detection probe is inserted into the second section in a vertical shape, and the detection probe and the second section are coaxially arranged.
6. The crude oil water content online detection device according to claim 1, wherein the stop valve is an electromagnetic valve.
7. The crude oil water content online detection device according to claim 1, wherein the gauge head comprises a gauge head body and a display screen which is arranged on the gauge head body in an external mode and used for displaying the water content of crude oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223191322.8U CN219142835U (en) | 2022-11-30 | 2022-11-30 | Crude oil moisture content on-line measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223191322.8U CN219142835U (en) | 2022-11-30 | 2022-11-30 | Crude oil moisture content on-line measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN219142835U true CN219142835U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223191322.8U Active CN219142835U (en) | 2022-11-30 | 2022-11-30 | Crude oil moisture content on-line measuring device |
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| CN (1) | CN219142835U (en) |
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- 2022-11-30 CN CN202223191322.8U patent/CN219142835U/en active Active
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