CN211008615U - Automatic measuring device for mass flow of produced liquid of oil field production well - Google Patents

Automatic measuring device for mass flow of produced liquid of oil field production well Download PDF

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Publication number
CN211008615U
CN211008615U CN201921878000.6U CN201921878000U CN211008615U CN 211008615 U CN211008615 U CN 211008615U CN 201921878000 U CN201921878000 U CN 201921878000U CN 211008615 U CN211008615 U CN 211008615U
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electromagnetic valve
controller
mass flow
metering tank
pipeline
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石亚权
石峥映
冯秋庆
孙志林
梅劲松
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Nanjing Ruilu Tongda Information Technology Co ltd
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Nanjing Ruilu Tongda Information Technology Co ltd
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Abstract

The utility model discloses an oil field producing well extraction liquid mass flow's automatic measuring device, the device includes: a controller and a measuring device body; the measuring device body includes: the device comprises a first electromagnetic valve, a second electromagnetic valve, a metering tank, a pipeline pump, an integrated weighing module and a third electromagnetic valve; wherein: the controller is respectively connected with the first electromagnetic valve, the second electromagnetic valve, the pipeline pump and the third electromagnetic valve in a controlling way; the controller is in communication connection with the integrated weighing module. The utility model discloses an adopt external metering tank, area is less. The tank is free of any movable part, so that the possibility of scaling is reduced, and the accuracy of calculating the liquid quantity, the mass flow and the mass flow is easy to ensure; metering tank and integral type weighing module accomplish the anticorrosion easily, and is explosion-proof, and the structure is reliable, also maintains easily. On the other hand, the quality data of the automatic on-line flow measurement is realized, and the accuracy and the efficiency of the measurement are also improved.

Description

Automatic measuring device for mass flow of produced liquid of oil field production well
Technical Field
The utility model relates to an oil field measurement technical field, in particular to oil field production well extraction liquid mass flow's automatic measuring device.
Background
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.
In the prior art, a horizontal overhead tank oil measuring method, a glass tube flowmeter and a tipping bucket oil measuring method have the defects of high labor intensity of workers, low accuracy and poor reliability due to the fact that the measuring method is relatively original, and particularly, the measuring of the yield of an ultra-heavy oil well has the defects of very low speed, difficult discharge of gas, need of sedimentation for more than 4 hours and incapability of realizing real-time online measuring; some weighing methods also use a metering tank, manually open a valve, manually record the inflow time of the produced liquid, and manually record weight data, so that too many manual operations and too large human errors occur; moreover, because the valve is opened manually, the original air pressure and the like in the metering tank are unknown, the weight of the liquid flowing in the period of time when the valve is opened is only known, and the timing is inaccurate, so that the data of mass flow is inaccurate, the whole liquid amount of the calculated working time is inaccurate, a large amount of manpower is needed, automatic detection cannot be realized, and online detection 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.
At present, because of the requirement of accuracy, the common mass flowmeter needs to realize gas-liquid separation in the previous procedure, the process is complex, the occupied area is large, and because the produced fluid of an oil field production well is easy to scale, the separation is not thorough, and the result is not accurate; and the mass flowmeter is expensive, belongs to a precise instrument, and has high maintenance cost.
Therefore, the technical problem to be solved by technical personnel in the field is to find an automatic measuring device which can realize real-time online measurement and more accurate measurement result for the mass flow of the produced liquid of the oil field production well.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides an solve the automatic measuring device of oil field producing well extraction liquid mass flow of above-mentioned partial technical problem at least.
An automatic measuring device for mass flow of produced liquid of an oil field production well comprises: a controller and a measuring device body;
the measuring device body includes: the device comprises a first electromagnetic valve, a second electromagnetic valve, a metering tank, a pipeline pump, an integrated weighing module and a third electromagnetic valve;
wherein: the controller is respectively connected with the first electromagnetic valve, the second electromagnetic valve, the pipeline pump and the third electromagnetic valve in a controlling way; the controller is in communication connection with the integrated weighing module;
the metering tank is placed above the integrated weighing module;
the input end of the first electromagnetic valve is connected with a wellhead pipeline, and the output end of the first electromagnetic valve is connected with a first inlet at the top of the metering tank;
the input end of the second electromagnetic valve is connected with the first outlet at the bottom of the metering tank, the output end of the second electromagnetic valve is connected with one end of the pipeline pump, and a three-way pipe is further arranged on a pipeline, connected with the main output pipeline, at the other end of the pipeline pump;
the first end of the three-way pipe fitting is connected with the other end of the pipeline pump;
the second end of the three-way pipe fitting is connected with the output end of a third electromagnetic valve, and the input end of the third electromagnetic valve is connected with a second outlet at the upper end of the metering tank;
and the third end of the three-way pipe fitting is connected with the output main pipeline.
In one embodiment, the connecting pipes of the first inlet, the first outlet and the second outlet are hoses;
and the hose is connected with pipelines in which the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively arranged through flanges.
In one embodiment, the controller is a P L C controller or an industrial personal computer.
In one embodiment, the controller is further provided with: a wireless communication module; the controller is connected with the remote terminal in a wireless communication mode.
In one embodiment, the wireless communication module includes one or more of:
WIFI module, public mobile communication network communication module, bluetooth module, near field communication module.
The embodiment of the utility model provides a pair of oil field producing well extraction liquid mass flow's automatic measuring device has following advantage:
(1) the metering tank is placed above the integrated weighing module, and the mass data of the automatic online flow detection can be realized according to the connection between the controller and the integrated weighing module, the connection between the controller and the.
(2) Compare ordinary mass flow meter, the utility model discloses an external metering tank, area is less. The tank is free of any movable part, so that the possibility of scaling is reduced, and the accuracy of calculating the liquid quantity, the mass flow and the mass flow is easy to ensure; metering tank and integral type weighing module accomplish the anticorrosion easily, and is explosion-proof, and the structure is reliable, also maintains easily.
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 for mass flow of produced liquid from an oil field production well according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of connection between a controller and a plurality of components according to an embodiment of the present invention.
Fig. 3 is a graph of measured mass of a metering tank over time, provided by an embodiment of the present invention.
Fig. 4 is a flow chart of an automatic measurement method for mass flow of produced fluid from an oil field production well according to an embodiment of the present invention.
In the drawings: 1-controller, 2-measuring device body, 21-first solenoid valve, 22-second solenoid valve, 23-metering tank, 24-pipeline pump, 25-integrated weighing module, and 26-third solenoid valve.
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 pair of oil field production well production liquid mass flow's automatic measuring device, include: a controller 1 and a measuring device body 2;
wherein: the measuring device body 2 includes: a first solenoid valve 21, a second solenoid valve 22, a metering tank 23, a pipeline pump 24, an integrated weighing module 25 and a third solenoid valve 26; the controller 1 is respectively connected with a first electromagnetic valve 21, a second electromagnetic valve 22, a pipeline pump 24 and a third electromagnetic valve 26 in a control way; the controller 1 is in communication connection with the integrated weighing module 25; the metering tank 23 is, for example, a cylindrical container.
The metering tank 23 is placed above the integrated weighing module 25; the input end of the first electromagnetic valve 21 is connected with a wellhead pipeline, and the output end of the first electromagnetic valve is connected with a first inlet at the top of the metering tank 23; the input end of the second electromagnetic valve 22 is connected with the first outlet at the bottom of the metering tank 23, the output end is connected with one end of the pipeline pump 24, and a three-way pipe is further arranged on the pipeline, connected with the main output pipeline, at the other end of the pipeline pump 24.
The first end of the tee pipe is connected with the other end of the pipeline pump 24; the second end of the second electromagnetic valve 26 is connected with the output end of the third electromagnetic valve 26, and the input end of the third electromagnetic valve 26 is connected with the second outlet at the upper end of the metering tank 23; the third end of the three-way pipe fitting is connected with the output main pipeline.
Wherein, for example, integral type weighing module 25 can adopt a novel sensor application structure, and it closes parts such as high accuracy shearing beam weighing sensor, load transmission device and erection joint board into an organic whole, has both guaranteed the characteristics that shearing beam sensor high accuracy, long-term stability are good, has solved the problem of weighing error because of the improper installation leads to the fact again.
In this embodiment, the mass flow of the oilfield produced fluid is calculated by using the external metering tank 23 and the integrated weighing module 25 and adding a controller and detecting the weight change of the metering tank 23, and then the mass flow is multiplied by the working time to calculate the liquid volume quality of the oilfield produced fluid.
In one embodiment, to prevent the weight of the connecting conduits of the first inlet, first outlet and second outlet of the metering tank from accounting for the total weight of the metering tank, or causing a turndown beyond the integral weighing module, the connecting conduits of the first inlet, first outlet and second outlet are each replaced by hoses. On one hand, the dead weight can be reduced, and on the other hand, the interference caused by the weight of the pipeline to the weight change of the monitoring metering tank is also avoided.
The hose is connected with pipelines respectively provided with the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve through flanges. The pipeline can be made of metal, and the metal pipeline is supported by the fixing device and is fixed.
Further, as shown in fig. 2, the Controller 1 may be, for example, a P L C Controller, the P L C Controller may be a Programmable logic Controller (Programmable L organic Controller, P L C), a digital electronic device with a microprocessor, and a digital logic Controller for automatic control, and the P L C Controller may load the control commands of the first solenoid valve 21, the second solenoid valve 22, the third solenoid valve 26, and the pipeline pump 24 into a 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 measuring device can be provided with a temperature sensor, a pressure sensor, a concentration meter and the like on a pipeline or in the metering tank 23, and feedback data of the sensing equipment can be acquired through an industrial personal computer, such as parameters of temperature, pressure, concentration and the like can be displayed.
Furthermore, the controller 1 can be provided with a wireless communication module to realize connection with a remote terminal, receive a control instruction of the remote terminal, feed back related parameters of a real-time working state, realize remote control of measurement time and frequency, and meet actual requirements of oil field production conditions. 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.
Specifically, the controller draws a curve graph by monitoring the constantly changing quality data of the metering tank in the measuring process, as shown in fig. 3, when the automatic measuring device starts to measure, after the first electromagnetic valve 21 is opened, the slope of the quality rising curve of the metering tank 23 may be lower or higher than the slope after stabilization due to the fact that the air pressure of the metering tank 23 is inconsistent with the air pressure in the pipeline, P L C or an industrial personal computer, according to intelligent judgment, the curve of the initial stage and the later stage basic level in the rising curve is eliminated, the curve of the middle section is selected, and the mass flow is calculated by dividing the mass by the time, wherein the calculation formula is as follows:
in the formula: sQRepresents mass flow in kg/s; t is1And T2The time points of two end points corresponding to the selected middle section curve are in the unit of s; w1And W2Is T1And T2The mass corresponding to the two end points is kg, and the total mass of the produced oil is 8 × 60S when the oil is produced for 8 hours in the production wellQ
In this embodiment, the device adopts the volume method principle, and metering tank 23 is the same regular cylinder container of end sectional area, places metering tank 23 in the top of integral type weighing module 25, and controller 1 can take notes the quality of metering tank 23 that every second integral type weighing module 25 surveyed according to the signal of integral type weighing module 25 feedback.
The measuring process and the working principle are as follows:
(1) when mass flow measurement is started, the first electromagnetic valve 21 is opened, the third electromagnetic valve 26 is opened, the second electromagnetic valve 22 is closed through a P L C or an industrial personal computer, oil field production well produced liquid enters the metering tank 23 from a first inlet at the top through a pipeline and a hose, the integral weighing module 25 monitors the change of the integral mass of the metering tank 23, and a curve as shown in FIG. 3 begins to be formed;
(2) after the metering tank 23 is full, the produced liquid of the oil field production well passes through a second outlet at the upper end of the metering tank 23, passes through a hose, and is discharged to the main pipeline through a third electromagnetic valve 26. Meanwhile, as the mass of the liquid in the metering tank 23 is not changed any more, the mass curve detected by the integrated weighing module 25 is basically kept horizontal;
(3) after a predetermined time, the second solenoid valve 22 is opened, the pipe pump 24 is started, the first and third solenoid valves 26 are closed, and the produced fluid in the metering tank 23 begins to be pumped out and enters the main pipe to continue to form the curve of fig. 3.
(4) According to the data of the integrated weighing module 25, after the P L C or the industrial personal computer judges that the preset minimum mass is reached, the pipeline pump 24 stops working, the first electromagnetic valve 21 and the third electromagnetic valve 26 are opened, the second electromagnetic valve 22 is closed, and the next measurement process starts.
In the embodiment, the measuring tank is subjected to real-time quality monitoring, a curve is drawn, and the mass flow of the produced liquid is calculated, so that the automation of the measuring process is realized, and the accuracy and the efficiency of the mass flow measurement of the produced liquid are improved. Compare traditional weighing method liquid measure and detect, the utility model discloses consider the change of the actual mass flow that the internal gas pressure of metering tank is different and lead to, analyze the mass change curve that the module produced to the integral type weighing through the controller, select suitable accurate curve section to carry out mass flow's calculation, the accuracy of calculated result is higher.
Specifically, based on the measurement device of the above embodiment, the method for automatically measuring the mass flow of the produced fluid of the oil field production well is shown in fig. 4, and includes the following steps:
s1, controlling the first electromagnetic valve and the third electromagnetic valve to start through the controller, and closing the second electromagnetic valve to discharge the produced liquid into the metering tank through the first electromagnetic valve; monitoring the overall mass change data of the metering tank through the integrated weighing module;
s2, when the overall quality data of the metering tank is not changed any more and the preset time is reached, determining that the metering tank is filled with the produced liquid; the controller controls the second electromagnetic valve and the pipeline pump to be started, the first electromagnetic valve and the third electromagnetic valve are closed, and the produced liquid enters the main pipeline through the second electromagnetic valve and the pipeline pump;
s3, after the overall quality data of the metering tank change to minimum data and reach a preset time, the controller controls the pipeline pump to stop working and closes the second electromagnetic valve; circularly executing the steps S1 to S3;
s4, recording the whole mass change data of the measuring tank in real time in the process of executing the steps S1-S3, and generating a curve graph of time T and mass W; the graph includes a plurality of periodic images;
s5, determining that at least two adjacent periodic images with the same slope exist in the plurality of periodic images; selecting two quality data W of ascending slope in any period image1And W2And corresponding T1And T2(ii) a The mass flow is calculated.
In the embodiment, when mass flow measurement is started, the first electromagnetic valve and the third electromagnetic valve are opened through the P L C or an industrial personal computer, the second electromagnetic valve is closed, the produced liquid of the oil field production well enters the metering tank from the first inlet at the upper part through a pipeline and a hose, the integral weighing module is used for monitoring the change of the integral mass of the metering tank, and a curve as shown in FIG. 3 begins to be formed;
and after the metering tank is full of oil, the produced liquid of the oil field production well passes through a second outlet at the upper end of the metering tank, passes through a hose and is discharged to the main pipeline through a third electromagnetic valve. Meanwhile, the mass of the liquid in the metering tank is not changed any more, so that the mass curve detected by the integrated weighing module is basically kept horizontal; and after the preset time is reached, the second electromagnetic valve is opened, the pipeline pump is started, the first electromagnetic valve and the third electromagnetic valve are closed, the produced liquid in the metering tank begins to be pumped out and enters the main pipeline, and the curve of the graph 3 is continuously formed.
According to the data of the integrated weighing module 25, after the P L C or the industrial personal computer judges that the preset minimum mass is reached, the pipeline pump stops working, the first electromagnetic valve and the third electromagnetic valve are opened, the second electromagnetic valve 22 is closed, and the next measurement process starts.
When the device starts to measure, after the first electromagnetic valve is opened, the air pressure of the metering tank is inconsistent with the air pressure in the pipeline and may be higher or lower, so that the slope of the mass rising curve of the metering tank is lower or higher than the slope after the mass rising curve is stable, P L C or an industrial personal computer removes the curves of the initial stage and the later stage basic level in the rising curve according to intelligent judgment, selects the curve of the middle section, and calculates the mass flow according to the mass divided by the time, wherein the calculation formula is as follows:
in the formula: sQRepresents mass flow in kg/s; t is1And T2The time points of two end points corresponding to the selected middle section curve are in the unit of s; w1And W2Is T1And T2The mass corresponding to the two end points at any moment is kg;
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 (5)

1. The utility model provides an automatic measuring device of oil field producing well extraction liquid mass flow which characterized in that includes: a controller (1) and a measuring device body (2);
the measuring device body (2) comprises: the device comprises a first electromagnetic valve (21), a second electromagnetic valve (22), a metering tank (23), a pipeline pump (24), an integrated weighing module (25) and a third electromagnetic valve (26);
wherein: the controller (1) is respectively in control connection with the first electromagnetic valve (21), the second electromagnetic valve (22), the pipeline pump (24) and the third electromagnetic valve (26); the controller (1) is in communication connection with the integrated weighing module (25);
the metering tank (23) is placed above the integrated weighing module (25);
the input end of the first electromagnetic valve (21) is connected with a wellhead pipeline, and the output end of the first electromagnetic valve is connected with a first inlet at the top of the metering tank (23);
the input end of the second electromagnetic valve (22) is connected with a first outlet at the bottom of the metering tank (23), the output end of the second electromagnetic valve is connected with one end of the pipeline pump (24), and a three-way pipe is further arranged on a pipeline of the other end of the pipeline pump (24) connected with the main output pipeline;
the first end of the tee pipe fitting is connected with the other end of the pipeline pump (24);
the second end of the tee pipe fitting is connected with the output end of a third electromagnetic valve (26), and the input end of the third electromagnetic valve (26) is connected with a second outlet at the upper end of the metering tank (23);
and the third end of the three-way pipe fitting is connected with the output main pipeline.
2. The automatic measuring device for the mass flow of the produced liquid of the oilfield production well of claim 1, wherein the connecting pipelines of the first inlet, the first outlet and the second outlet are hoses;
the hose is connected with pipelines respectively provided with the first electromagnetic valve (21), the second electromagnetic valve (22) and the third electromagnetic valve (26) through flanges.
3. The automatic measuring device for the mass flow of the produced liquid of the oilfield production well is characterized in that the controller (1) is a P L C controller or an industrial personal computer.
4. An automatic measuring device for the mass flow of oil field production well produced liquid according to claim 3, 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.
5. The automatic measurement device of the mass flow of the oil field production well production fluid of claim 4, wherein the wireless communication module comprises one or more of the following:
WIFI module, public mobile communication network communication module, bluetooth module, near field communication module.
CN201921878000.6U 2019-11-01 2019-11-01 Automatic measuring device for mass flow of produced liquid of oil field production well Active CN211008615U (en)

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Application Number Priority Date Filing Date Title
CN201921878000.6U CN211008615U (en) 2019-11-01 2019-11-01 Automatic measuring device for mass flow of produced liquid of oil field production well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921878000.6U CN211008615U (en) 2019-11-01 2019-11-01 Automatic measuring device for mass flow of produced liquid of oil field production well

Publications (1)

Publication Number Publication Date
CN211008615U true CN211008615U (en) 2020-07-14

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