CN212179965U - Automatic measuring device suitable for oil field production well extraction liquid of low flow - Google Patents
Automatic measuring device suitable for oil field production well extraction liquid of low flow Download PDFInfo
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Abstract
The utility model discloses an automatic measuring device suitable for low-flow oil field production well produced liquid, which comprises a controller and a measuring device body; the measuring device body comprises a U-shaped pipe, a static mixer, a water content sensor, an inlet three-way valve, an outlet three-way valve, a first vertical pipe, a second vertical pipe and four differential pressure sensors. The utility model discloses a flow is calculated to the pressure differential of two perpendicular pipes with the volume method. The first vertical pipe and the second vertical pipe are respectively provided with a differential pressure sensor, and the flow rate of the liquid mixture and the flow rate of the gas can be calculated. A static mixer and a water content sensor are sequentially arranged in the U-shaped pipe, so that the water content of the three-phase flow can be accurately measured. The measuring device has high reliability, small volume and convenient calibration and can meet the requirements of field installation and maintenance; the controller can realize automation and real-time on-line measurement, and can accurately measure and calculate the water content, the gas content, the mass and the volume flow of the three-phase flow.
Description
Technical Field
The utility model relates to an oil field measurement technical field, in particular to automatic measuring device suitable for oil field producing well extraction liquid of low flow.
Background
At present, in oil production wells of all oil fields in the world, the oil yield and the oil production are the most important basic data for oil field production, and most of the oil fields in China adopt secondary tertiary oil displacement operation, secondary oil extraction adopts a water drive technology, and tertiary oil extraction adopts an ternary combination drive technology. Similar technologies are mostly adopted for deep oil extraction in large oil fields such as Daqing oil fields, Jilin oil fields, Tarim oil fields, Shengli oil fields and the like in China due to aging of the oil fields.
Under the conditions of secondary and tertiary oil displacement operation, the produced substance is a three-phase flow (gas phase, water phase and oil phase), and the possible component in the gas phase is H2S、CO2And lower hydrocarbons, and the like, the aqueous phase contains oil displacement chemicals, and the oil phase refers to crude oil. In order to monitor the production water amount of an oil well in real time, it is necessary to accurately control the oil production amount of the oil well in each oil field, and it is necessary to periodically measure the water content of the oil well production liquid.
The single well metering of the oil well is a necessary means for dynamically analyzing and acquiring data in oil field development, and because the conventional oil well metering period is short, the oil field is mostly completed by adopting a multi-well metering station for many years. At present, oil field oil well metering at home and abroad generally adopts five methods: (1) measuring oil in a horizontal overhead tank; (2) measuring oil by using a glass tube; (3) tipping bucket for oil measurement; (4) a liquid level recovery method; (5) a power diagram method.
Measurement of moisture content in the prior art: after the three-phase flow is transferred to the ground from the underground, due to the change of temperature and pressure, the form is changed, oil, water and gas are quickly separated, the gas overflows from a bulk phase, a water phase sinks, an oil phase floats, the water phase contains uncertain oil in the form of oil-in-water, the oil phase contains uncertain water in the form of water-in-oil, and the oil content in the form of oil-in-water and the water content in the water-in-oil are dynamically changed, so that the measurement of the crude oil yield is very difficult. Because the oil field does not have a simple and reliable method for testing the oil-water ratio, the data work of the oil field is difficult to progress, and particularly the working condition of high gas content and high water content in produced liquid is difficult to measure.
In addition, in order to ensure the reliability of measurement, the surfaces of the moisture content sensors must be cleaned by some existing patent technologies and products, and self-cleaning and measurement can be realized only by a self-sucking pump and four electromagnetic valves, so that the structure is complicated and the size is large; in some patent products, the driving mechanism is externally arranged and performs reciprocating motion to achieve the purpose of cleaning the surface of the sensor, and the sealing property is very difficult to maintain.
Particularly, for some wells with high gas content, the influence of the gas content is unknown, so that a long time is needed for calibrating the water content sensor, and the accuracy is difficult to guarantee.
Measurement of flow in the prior art: because the metering method is more original, the labor intensity of workers is high, the accuracy is low, the reliability is poor, particularly the metering of the yield of an ultra-heavy oil well is very slow, gas is not easy to discharge, the settlement is required for more than 4 hours, and the real-time online metering cannot be realized; still other methods utilize the principles of volumetric methods for measurement, which result in inaccurate fluid volume data due to the presence of gas mixed in the produced fluid. In recent years, some domestic oil fields are measured by a liquid level recovery method and a diagram method, because the two measurement methods need a large amount of oil well production data, the diagram is difficult to be automatically identified by a computer, some empirical parameters are needed, and the method has large human factors, large measurement errors and unsatisfactory use effect. These all bring huge bottlenecks to the oil well automation technology popularization.
Therefore, how to research a measuring device for the water content, the gas content and the flow rate of the produced liquid of the oil field production well, which has the advantages of reliability, high reliability, small volume and convenient calibration and can meet the requirements of field installation and maintenance, is a problem that needs to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an automatic measuring device for oil field production well produced liquid with low flow rate, which at least solves some technical problems.
An automatic measuring device suitable for low-flow oilfield production well produced liquid comprises a controller and a measuring device body;
the measuring device body comprises a U-shaped pipe, a static mixer, a water content sensor, an inlet three-way valve, an outlet three-way valve, a first vertical pipe, a second vertical pipe and four differential pressure sensors;
one end of the U-shaped pipe is communicated with the incoming liquid main pipe, and the other end of the U-shaped pipe is communicated with the first end of the inlet three-way valve through a pipeline; the static mixer and the water content sensor are sequentially arranged in the U-shaped pipe;
the first vertical pipe and the second vertical pipe are arranged in parallel; the second end and the third end of the inlet three-way valve are respectively communicated with inlets of the first vertical pipe and the second vertical pipe close to the side surface of the top end;
the first end of the outlet three-way valve is communicated with the liquid drainage main pipe, the second end of the outlet three-way valve is communicated with the bottom end of the first vertical pipe, and the third end of the outlet three-way valve is communicated with the bottom end of the second vertical pipe; the first vertical pipe is communicated with the top end of the second vertical pipe through a pipeline;
the first vertical pipe is provided with a first differential pressure sensor and a second differential pressure sensor at a preset distance from bottom to top; a third differential pressure sensor and a fourth differential pressure sensor are respectively arranged on the second vertical pipe from bottom to top at a preset distance;
the controller is respectively connected with the water content sensor, the inlet three-way valve, the outlet three-way valve, the first differential pressure sensor, the second differential pressure sensor, the third differential pressure sensor and the fourth differential pressure sensor.
Further, still include: a cleaning member for cleaning the water content sensor;
the cleaning part includes: the device comprises a driving mechanism, a screw rod and nut mechanism and a cleaning piece;
a driving shaft of the driving mechanism is in driving connection with a screw rod of the screw rod nut mechanism;
one end of the cleaning piece is fixed on a nut block of the screw rod nut mechanism, and the other end of the cleaning piece is sleeved on a probe of the moisture content sensor;
the driving mechanism is positioned outside the pipeline, and the feed screw and nut mechanism and the cleaning piece are positioned in the pipeline;
the controller is in control connection with the driving mechanism.
Further, a sealing ring is arranged between the driving shaft of the driving mechanism and the pipeline wall.
Further, the cleaning piece is an annular brush or a rubber ring.
Furthermore, a throttling nozzle is arranged at the liquid outlet end of the static mixer.
Further, the controller is a PLC controller or an industrial personal computer.
Further, the controller is also provided with: a wireless communication module; the controller is connected with the remote terminal in a wireless communication mode.
Further, the wireless communication module includes one or more of:
the device comprises a WIFI module, a public mobile communication network communication module, a Bluetooth module and a near field communication module.
The embodiment of the utility model provides a pair of automatic measuring device suitable for oil field producing well extraction liquid of low flow, the device can measure out water content, gas void and the flow of oil field producing well extraction liquid.
1. When the flow rate of the produced liquid is small, such as less than 100m3When the volume per day is measured in the volume, the flow rate is calculated by the pressure difference of the two vertical pipes. The first vertical pipe and the second vertical pipe are respectively provided with a differential pressure sensor, and the flow rate of the liquid mixture (oil and water) and the flow rate of the gas can be calculated. A static mixer and a water content sensor are sequentially arranged in the U-shaped pipe, so that the water content of the three-phase flow can be accurately measured.
2. According to the connection of the controller with the first differential pressure sensor, the second differential pressure sensor, the third differential pressure sensor, the fourth differential pressure sensor and the water content sensor and the control connection with the inlet three-way valve and the outlet three-way valve, the flow can be counted and calculated in real time, the automation of the measuring process is realized, and the measuring accuracy and the measuring efficiency are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an automatic measuring device suitable for low-flow oil field production well produced liquid provided by an embodiment of the present invention;
fig. 2 is an enlarged view of a water content sensor and a cleaning component provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of connection between a controller and a plurality of components according to an embodiment of the present invention.
In the drawings: 1-controller, 2-measuring device body, 21-U-shaped pipe, 22-static mixer, 23-water content sensor, 24-inlet three-way valve, 25-outlet three-way valve, 26-first vertical pipe, 27-second vertical pipe, 261-first differential pressure sensor 262-second differential pressure sensor, 271-third differential pressure sensor, 272-fourth differential pressure sensor, 28-cleaning component, 281-driving mechanism, 282-screw rod nut mechanism, 283-cleaning component and 29-throttling nozzle.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, the embodiment of the utility model provides a be applicable to the automatic measuring device of oil field producing well produced liquid of low flow, include: a controller 1 and a measuring device body 2;
wherein, measuring device body 2 includes: the device comprises a U-shaped pipe 21, a static mixer 22, a water content sensor 23, an inlet three-way valve 24, an outlet three-way valve 25, a first vertical pipe 26, a second vertical pipe 27 and four differential pressure sensors;
one end of the U-shaped pipe 21 is communicated with the incoming liquid main pipe through a flange, and the other end of the U-shaped pipe is communicated with the first end of the inlet three-way valve 24 through a flange pipeline; a static mixer 22 and a water content sensor 23 are sequentially arranged in the 4U-shaped pipe 21;
the first vertical pipe 26 and the second vertical pipe 27 are arranged in parallel, and the second end and the third end of the inlet three-way valve 24 are respectively communicated with the inlets of the first vertical pipe 26 and the second vertical pipe 27 close to the side surfaces of the top ends; a first end of the outlet three-way valve 25 is communicated with the liquid discharge main pipe, a second end is communicated with the bottom end of the first vertical pipe 26, and a third end is communicated with the bottom end of the second vertical pipe 27; the top ends of the first vertical pipe 26 and the second vertical pipe 27 are communicated through a pipeline;
the first vertical pipe 26 is provided with a first differential pressure sensor 261 and a second differential pressure sensor 262 at a preset distance from bottom to top; the second vertical pipe 27 is respectively provided with a third differential pressure sensor 271 and a fourth differential pressure sensor 272 at a preset distance from bottom to top; the two preset distances can be the same or different; the pressure difference between the upper point and the lower point can be conveniently measured.
The controller 1 is connected to the water content sensor 23, the inlet three-way valve 24, the outlet three-way valve 25, the first differential pressure sensor 261, the second differential pressure sensor 262, the third differential pressure sensor 271, and the fourth differential pressure sensor 272, respectively.
At the upper reaches section of moisture content sensor, through setting up static mixer, utilize the mixing unit body of fixing in the pipe to change the mobile state of liquid in the pipe to reach good dispersion and intensive mixing's between water, oil, the gas purpose, thereby improve the accurate measurement of moisture content sensor to the moisture content.
In order to further increase the mixing effect, a throttling nozzle can be arranged at the liquid outlet end of the static mixer.
In this embodiment, when the flow rate is small, for example, less than 100m3At/d (cubic meters per day), the measurement procedure is as follows:
in the case of fig. 1, the produced fluid first enters the U-tube 21 from the wellhead of the oil well (containing gas), is fully mixed by the static mixer 22, has a moisture content accurately measured by the moisture content sensor 23, and then flows to the inlet three-way valve 24. The measurements of the liquid and gaseous flow rates are then carried out by dividing the time intervals into the first vertical pipe 26 and the second vertical pipe 27, which is explained by taking the example of the liquid first entering the first vertical pipe 26.
The inlet three-way valve 24 is opened to the first vertical pipe 26 (closed to the second vertical pipe 27), while the outlet three-way valve 25 is opened to the second vertical pipe 27 (closed to the first vertical pipe 26), so that the first vertical pipe 26 is fed with liquid and the second vertical pipe 27 is drained with liquid; as the liquid produced by the well continues to flow into the first vertical pipe 26, the liquid level in the first vertical pipe 26 will rise, and the separated gas enters the second vertical pipe 27 from the upper part of the second vertical pipe 27, so as to promote the liquid in the second vertical pipe 27 to be discharged; the differential pressure Δ P is detected by the first differential pressure sensor 261 and the second differential pressure sensor 262 at the same time1The third differential pressure sensor 263 and the fourth differential pressure sensor 264 detect the differential pressure Δ P2；
Pressure difference Δ P in the first vertical pipe 261After the preset value is reached, the inlet three-way valve 24 and the outlet three-way valve 25 are turned at the same time, the inlet three-way valve 24 is opened to the second vertical pipe 27, the outlet three-way valve 25 is opened to the first vertical pipe 26, the liquid is fed into the second vertical pipe 27, the liquid is discharged from the first vertical pipe 26, and meanwhile the liquid passes through the first differential pressure sensor 261 and the second differential pressure sensorSensor 262 detects differential pressure Δ P1The third differential pressure sensor 263 and the fourth differential pressure sensor 264 detect the differential pressure Δ P2；
According to Δ P1，ΔP2According to other input conditions and calculation, the monitoring result of the method can obtain the water content and the flow of oil, water and gas; the automation of the measuring process is realized, and the measuring accuracy and the measuring efficiency are improved.
In one embodiment, the pipeline to which the moisture content sensor 23 is installed may be accessed through a tee flange. When the moisture content sensor 23 breaks down, it is convenient to maintain and replace.
In the long-term measurement process of the water content sensor 23, part of silt, viscous substances and corrosive substances are easily attached to the surface probe; resulting in errors or inaccurate measurements in subsequent measurements; therefore, the surface of the water content sensor 23 needs to be cleaned periodically. Therefore, the measuring apparatus further includes a cleaning part 28 for cleaning the moisture content sensor.
Referring to fig. 2, the cleaning member 28 is assembled with the water content sensor 23; among them, the cleaning member 28 includes: a drive mechanism 281, a feed screw nut mechanism 282, and a cleaning member 283; the drive mechanism 281 rotates the lead screw of the lead screw nut mechanism 282 through an output shaft. One end of the cleaning piece 283 is fixed on the nut block of the feed screw nut mechanism 282, and the other end is sleeved on the probe of the moisture content sensor 23; the controller 1 is in control connection with a driving mechanism 281, the driving mechanism drives a screw rod nut mechanism to drive a cleaning piece to reciprocate on a probe of the water content sensor, and thus, the cleaning of attachments is realized; and the normal use of the water content sensor is ensured.
Wherein, the driving mechanism 281 is positioned outside the pipeline, and the screw and nut mechanism 282 and the cleaning piece 283 are positioned inside the pipeline; compared with the traditional method that the transmission mechanism is also arranged outside the pipeline, the sealing element required by the transmission mechanism is less, and only a sealing ring is arranged between the driving shaft of the driving mechanism and the pipeline wall; the influence on the pipeline is small, the pipeline is not easy to leak, and the service life of the cleaning part is prolonged.
The cleaning member 283 is an annular brush or rubber ring, ensures easy cleaning of attachments, is corrosion resistant and does not react with produced liquid in the pipeline.
Further, the driving mechanism 281 may be driven by hydraulic, pneumatic, electric, etc., and is not limited in this disclosure; for example, taking an electrically driven driving motor as an example, the controller is in control connection with a driver of the driving motor; the following working principle of automatic cleaning is explained:
after the measurement is finished, the controller controls the driver to enable the driving motor to start working, and the output shaft drives the screw rod and nut mechanism to reciprocate, so that the cleaning piece reciprocates back and forth, the cleaning piece is driven to clean back and forth on the surface of the probe of the water content sensor, and no attachments on the surface are ensured.
Further, as shown in fig. 3, the Controller 1 may be, for example, a PLC Controller, which is a Programmable Logic Controller (PLC), a digital electronic device having a microprocessor, and a digital Logic Controller for automation control. The PLC controller may load the control instruction of the driving mechanism into the memory for storage and execution.
In addition, the controller 1 may also be, for example, an industrial personal computer, which has important computer attributes and characteristics, such as having a computer CPU, a hard disk, an internal memory, peripherals and interfaces, and having an operating system, a control network and a protocol, computing capabilities, and a friendly human-computer interface. For example, the first differential pressure sensor, the second differential pressure sensor, the third differential pressure sensor, the fourth differential pressure sensor and the moisture content sensor on the measuring device, in addition, a temperature sensor, a pressure sensor, a concentration meter and the like can be arranged on the pipeline, the feedback data of the sensing equipment can be obtained through the industrial personal computer, statistics and calculation can be carried out, and parameters such as temperature, pressure, concentration and the like can be displayed.
Furthermore, the controller can be provided with a wireless communication module, so that the connection with a remote terminal is realized, a control instruction of the remote terminal is received, related parameters of a real-time working state can be fed back, the remote control on the measurement time and frequency can be realized, and the actual requirements of the oil field production condition are met. The wireless communication module can be any one of a WIFI module, a public mobile communication network communication module, a Bluetooth module and a near field communication module. The public mobile communication network communication module can be 2G, 3G, 4G, 5G communication modules of various standards, and the near Field communication module can be an nfc (near Field communication) module or the like.
The measurement process and principle of the produced liquid water content, gas content and flow are explained below.
The embodiment of the utility model provides an automatic measuring device suitable for oil field producing well extraction liquid of low discharge:
1. the water content of the produced liquid can be obtained by the water content sensor with the self-determined cleaning function.
The case of the electrical characteristic method is generally realized by a capacitance method or a microwave method, and is mainly determined by detecting the dielectric constant of the oil-gas-water mixture.
The relative dielectric constant of the mixture has various algorithms, but all are comprehensive functions of the volume ratio of oil, gas and water and the dielectric constant. Taking the volume ratio method as an example, the oil-gas-water three-phase mixed fluid derived from the crude oil water content calculation formula can be approximated to a mixture consisting of three parts, namely air with a certain volume, pure water with a certain volume and pure oil with a certain volume. The relative dielectric constant of the mixture can be expressed as:
(1) in the formula: vg、Vw、Vo: respectively representing the volumes of air, pure water and pure oil in the mixture; v is the volume of the mixture;
the relative dielectric constants of pure water and pure oil are shown, respectively. The relative dielectric constant of air is 1.
2. By utilizing a differential pressure sensor in a vertical pipeline or a vertical liquid storage tank, assuming that the height difference of two points of the differential pressure sensor is h, the method can be known according to the Bernoulli equation:
ΔP＝ρMgh (2)
(2) (3) in the formula:
Vg、Vw、Vo: respectively representing the volumes of air, pure water and pure oil in the mixture;
v is the volume of the mixture;
ρg、ρw、ρo: respectively represent the density of air, pure water and pure oil, which are known quantities;
ρMrepresents the density of the air, oil and water mixture; from the measured Δ P and the known gh, ρ can be calculatedM。
In addition, because
According to the formulas (1) to (4), the volume ratios of the gas, the oil and the water can be calculated respectively:
thus obtaining the gas content.
3. If the flow of production fluid is relatively small, typically less than 100m3Per d (cubic meters per day), it is generally recommended to calculate the flow by volumetric method using the pressure difference between two straight pipes. The first vertical pipe is referred to as an a pipe, and the second vertical pipe is referred to as a B pipe. The pipe A and the pipe B are respectively provided with a differential pressure sensor for detecting the flow rate of the liquid mixture (oil and water) and the flow rate of gas by a volumetric method. In order to simplify the structure, the flow rate of the mixture (oil and water) and the flow rate of the gas are respectively calculated by measuring the liquid level change by adopting a plurality of vertical pipelines, and in order to ensure the emptying of the liquid, a mode of respectively feeding liquid into the two vertical pipelines of A, B is adopted. Taking liquid A and liquid B as examples, the calculation process is as follows:
a vertical pipe A:
ΔP1＝ρwogha
mass of liquid in tube at time t:
Mwo＝ρwo*V＝ρwoπr2ha＝πr2ΔP1/g
the mass flow rate of the liquid is:
Qwo＝Mwo/t＝πr2ΔP1/g/t (5)
a vertical pipe B:
ΔP2＝ρwoghb
during the time t, the height of the liquid level drop in the tube B is as follows:
h-hb＝ha+hg
the volumetric flow rates of the gases are therefore:
meanwhile, the density formula of the liquid mixture of oil and water is as follows:
in summary, the volume flow and the mass flow of the water, the oil and the gas can be calculated according to the formulas (1) to (7).
In the embodiment, the measuring device is additionally provided with the U-shaped pipe and the static mixer, and an improved device which is easy to maintain and is used for automatically cleaning the water-containing sensor is adopted, so that the water content detection is possible to be applied in a large range; when the flow of produced liquid is less than 100m3In the time of/d, the principles of a double-pipe method and a volume method are adopted, the method is more accurate when the flow is low, and the method does not adopt the culture mediumThe dune flowmeter avoids the defect that the differential pressure flowmeter is inaccurate when the flow is small; meanwhile, automatic measurement becomes possible, and the device is simple in structure and low in cost. In addition, the measuring device has high reliability, small volume and convenient calibration and can meet the requirements of field installation and maintenance; the controller can realize automation and real-time online measurement, and the measurement result is more accurate.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An automatic measuring device suitable for low-flow oilfield production well produced liquid is characterized by comprising a controller (1) and a measuring device body (2);
the measuring device body (2) comprises a U-shaped pipe (21), a static mixer (22), a water content sensor (23), an inlet three-way valve (24), an outlet three-way valve (25), a first vertical pipe (26), a second vertical pipe (27) and four differential pressure sensors;
one end of the U-shaped pipe (21) is communicated with the incoming liquid main pipe, and the other end of the U-shaped pipe is communicated with the first end of the inlet three-way valve (24) through a pipeline; the static mixer (22) and the water content sensor (23) are sequentially arranged in the U-shaped pipe (21);
the first vertical pipe (26) and the second vertical pipe (27) are arranged in parallel; the second end and the third end of the inlet three-way valve (24) are respectively communicated with inlets of the first vertical pipe (26) and the second vertical pipe (27) close to the side surface of the top end;
the first end of the outlet three-way valve (25) is communicated with a main liquid drainage pipe, the second end of the outlet three-way valve is communicated with the bottom end of the first vertical pipe (26), and the third end of the outlet three-way valve is communicated with the bottom end of the second vertical pipe (27); the top ends of the first vertical pipe (26) and the second vertical pipe (27) are communicated through a pipeline;
the first vertical pipe (26) is provided with a first differential pressure sensor (261) and a second differential pressure sensor (262) at a preset distance from bottom to top; the second vertical pipe (27) is provided with a third differential pressure sensor (271) and a fourth differential pressure sensor (272) at a preset distance from bottom to top;
the controller (1) is respectively connected with the water content sensor (23), the inlet three-way valve (24), the outlet three-way valve (25), the first differential pressure sensor (261), the second differential pressure sensor (262), the third differential pressure sensor (271) and the fourth differential pressure sensor (272).
2. The measurement device of claim 1, further comprising: a cleaning member (28) for cleaning the water content sensor (23);
the cleaning member (28) includes: a drive mechanism (281), a feed screw and nut mechanism (282), and a cleaning member (283);
a drive shaft of the drive mechanism (281) is in driving connection with a lead screw of the lead screw-nut mechanism (282);
one end of the cleaning piece (283) is fixed on a nut block of the screw rod nut mechanism (282), and the other end is sleeved on a probe of the moisture content sensor (23);
wherein the driving mechanism (281) is positioned outside the pipeline, and the screw and nut mechanism (282) and the cleaning piece (283) are positioned inside the pipeline;
the controller (1) is in control connection with the driving mechanism (281).
3. A measuring device according to claim 2, characterized in that a sealing ring is provided between the drive shaft of the drive mechanism (281) and the pipe wall.
4. A measuring device as claimed in claim 3, characterized in that said cleaning member (283) is an annular brush or a rubber ring.
5. A measuring device as claimed in claim 1, characterized in that the outlet end of the static mixer (22) is provided with a throttling nozzle (29).
6. A measuring device as claimed in claim 1, characterized in that the controller (1) is a PLC controller or an industrial control computer.
7. A measuring device as claimed in claim 1, characterized in that the controller (1) is further provided with: a wireless communication module; the controller (1) is connected with a remote terminal in a wireless communication mode.
8. The measurement device of claim 7, wherein the wireless communication module comprises one or more of:
the device comprises a WIFI module, a public mobile communication network communication module, a Bluetooth module and a near field communication module.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526112A (en) * | 2021-02-09 | 2021-03-19 | 山东广域科技有限责任公司 | Automatic remote monitoring device for water content of oil well mouth |
| CN114893170A (en) * | 2022-07-13 | 2022-08-12 | 南京瑞路通达信息技术有限公司 | Online detection device and method for liquid amount and water content of wellhead |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526112A (en) * | 2021-02-09 | 2021-03-19 | 山东广域科技有限责任公司 | Automatic remote monitoring device for water content of oil well mouth |
| CN112526112B (en) * | 2021-02-09 | 2021-05-11 | 山东广域科技有限责任公司 | Automatic remote monitoring device for water content of oil well mouth |
| CN114893170A (en) * | 2022-07-13 | 2022-08-12 | 南京瑞路通达信息技术有限公司 | Online detection device and method for liquid amount and water content of wellhead |
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