CN117967280A - Sand output monitoring method and device, electronic equipment and computer storage medium - Google Patents
Sand output monitoring method and device, electronic equipment and computer storage medium Download PDFInfo
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- 239000004576 sand Substances 0.000 title claims abstract description 108
- 238000012544 monitoring process Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000003860 storage Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 145
- 239000012530 fluid Substances 0.000 claims abstract description 66
- 238000012806 monitoring device Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims description 18
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- 239000007787 solid Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 27
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- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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Abstract
The disclosure provides a sand output monitoring method, a sand output monitoring device, electronic equipment and a computer storage medium, and belongs to the technical field of fluid measurement. The method comprises the following steps: obtaining a mass flow rate of a fluid in a pipeline during a monitoring period, wherein the fluid comprises: liquid and gas; determining a first voltage signal corresponding to the liquid in the pipeline based on the mass flow; determining a target voltage signal based on the monitored second voltage signal and the first voltage signal; and determining the sand output of the pipeline in the monitoring time period according to the target voltage signal. The method can accurately monitor the sand output in the gas-liquid mixed transportation pipeline.
Description
Technical Field
The disclosure relates to the technical field of fluid measurement, and in particular relates to a sand output monitoring method, a sand output monitoring device, electronic equipment and a computer storage medium.
Background
In recent years, with the progress of marine drilling exploration technology, offshore oil exploitation is rapidly developed, and gas-liquid mixing transportation is the most commonly used oil and gas transportation mode in the middle and later stages of land oil and gas field exploration and development and in the development process of offshore oil and gas fields. However, in the process of crude oil extraction, fine sand grains of a rock layer enter a production pipeline along with the produced liquid flow, so that pipeline erosion and blockage are caused, and the hidden danger is great for safe production burying, so that the sand output monitoring of the gas-liquid mixed transmission pipeline has great significance for safe operation of the gas-liquid mixed transmission pipeline.
When a conventional sand production monitoring gas well is used, the pipeline is only used for conveying liquid, and at the moment, the influence of gas in the pipeline on a gravel impact signal is small and can be ignored. Since the liquid impact signal and the gravel impact signal have a large frequency difference, the sand amount can be monitored by frequency analysis. However, in the gas-liquid mixing pipeline, the flow rate of liquid in the pipeline is accelerated due to the existence of gas, the frequency of a liquid impact signal is increased, the frequencies of the liquid impact signal and a gravel impact signal are overlapped, and are difficult to distinguish, so that the result obtained by analyzing the sand amount through different frequencies is inaccurate.
Disclosure of Invention
The disclosure provides a sand output monitoring method, a sand output monitoring device, electronic equipment and a computer storage medium; the sand output in the gas-liquid mixed transportation pipeline can be accurately monitored.
The technical scheme of the present disclosure is realized as follows:
In a first aspect, the present disclosure provides a method of monitoring sand production, the method comprising: obtaining a mass flow rate of a fluid in a pipeline during a monitoring period, wherein the fluid comprises: liquid and gas; determining a first voltage signal corresponding to the liquid in the pipeline based on the mass flow; determining a target voltage signal based on the monitored second voltage signal and the first voltage signal; and determining the sand output of the pipeline in the monitoring time period according to the target voltage signal.
In a second aspect, the present disclosure provides a sand production monitoring device comprising: an acquisition section, a determination section; the acquisition portion is configured to acquire a mass flow rate of the fluid in the pipeline during the monitoring period, the fluid including: liquids, gases and solids; the determining part is configured to determine a first voltage signal corresponding to the liquid in the pipeline based on the mass flow; the determining part is further configured to determine a target voltage signal based on the monitored second voltage signal and the first voltage signal; the determining part is further configured to determine the sand output of the pipeline in the monitoring duration according to the target voltage signal.
In a third aspect, the present disclosure provides an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the sand production monitoring method as described in the first aspect.
In a fourth aspect, the present disclosure provides a computer readable storage medium having stored thereon a program or instructions which when executed by a processor performs the steps of the sand production monitoring method according to the first aspect.
In a fifth aspect, the present disclosure provides a computer program product, wherein the computer program product comprises a computer program or instructions which, when run on a processor, cause the processor to execute the computer program or instructions for carrying out the steps of the sand production monitoring method as described in the first aspect.
In a sixth aspect, the present disclosure provides a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the sand production monitoring method according to the first aspect.
The present disclosure provides a method for monitoring sand production, the method comprising: obtaining a mass flow rate of a fluid in a pipeline during a monitoring period, wherein the fluid comprises: liquid and gas; determining a first voltage signal corresponding to the liquid in the pipeline based on the mass flow; determining a target voltage signal based on the monitored second voltage signal and the first voltage signal; and determining the sand output of the pipeline in the monitoring time period according to the target voltage signal. According to the method, the voltage signal corresponding to the liquid is determined according to the mass flow, the influence of the voltage signal corresponding to the liquid is removed from the monitored voltage signal, so that the voltage signal generated by the impact of effective gravel on the pipe wall is extracted, and the sand yield determined based on the finally obtained target voltage signal is more accurate in a gas-liquid mixed transmission pipeline.
Drawings
FIG. 1 is a schematic flow chart of a sand output monitoring method provided by the present disclosure;
FIG. 2 is a schematic diagram of the operation of the constant power thermal mass flowmeter provided by the present disclosure;
FIG. 3 is a second flow chart of the sand output monitoring method according to the present disclosure;
FIG. 4 is a third flow chart of the sand output monitoring method according to the present disclosure;
FIG. 5 is a flow chart of a sand output monitoring method according to the present disclosure;
FIG. 6 is a fifth flow chart of the sand output monitoring method provided by the present disclosure;
FIG. 7 is a flow chart of a sand output monitoring method provided by the present disclosure;
FIG. 8 is a block diagram of a sand output monitoring device provided by the present disclosure;
fig. 9 is a schematic hardware structure of an electronic device provided in the present disclosure.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the present disclosure, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.
The terms "first," "second," and the like in the description of the present application, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate so that the present disclosure may be practiced in sequences other than those illustrated and described herein, and that the objects identified by "first," "second," etc. are generally of a type and do not limit the number of objects, e.g., the first object may be one or more. In addition, "and/or" in the specification means at least one of the connected objects, and the character "/", generally means a relationship in which the associated objects are one kind of "or".
In gas-liquid mixing pipelines, sand production refers to the process of flowing gravel or other solid particles out of the wellhead with the gas and liquid and transporting through the pipeline. Monitoring the sand production of gas-liquid mixing and conveying pipelines is very important, and main reasons include:
Pipeline integrity and security: the flow of gravel within the pipeline can cause corrosion, wear, and erosion that can compromise the structural integrity of the pipeline. Long-term sand production can lead to leakage or breakage of the pipeline, creating significant safety concerns.
And (3) protecting equipment: sand production may also cause damage to the process equipment at the end of the pipeline, such as valves, pumps, separators, etc. Wear or damage to these equipment can increase maintenance costs and downtime.
Production efficiency: sand production may clog the pipeline, affect the flow of oil and gas, and thus reduce production efficiency. Timely sand production detection and treatment can help maintain a stable production flow.
Environmental protection: the rupture or leakage of the pipeline not only poses a threat to personnel and equipment safety, but can also cause serious environmental pollution, particularly in sensitive areas.
Cost control: monitoring and managing sand production can help reduce costs due to equipment damage and maintenance, as well as economic losses due to production breaks.
The oil gas recovery ratio is improved: the effective sand production control and management can help to optimize the exploitation of oil gas and increase the overall recovery ratio of the oil and gas field.
Compliance with: in some cases, monitoring sand production is also required to comply with regulations and industry standards to ensure legitimacy and safety of operation.
In summary, monitoring the sand production of gas-liquid mixing pipelines is a key link for ensuring the safety, high efficiency, environmental protection and economy of oil and gas exploitation activities.
Typically, the detection of sand production may employ acoustic detection techniques, using sonic or ultrasonic sensors to detect the flow of gravel within the pipe, which can monitor the sound produced by the gravel striking the pipe wall to estimate the sand production. However, the precondition of the detection method is that the frequencies generated by impacting the pipe wall with the liquid and the solid are not overlapped, so that the frequencies generated by impacting the pipe wall with the solid can be obtained by separation according to different frequencies, and the sand yield is obtained.
However, due to the presence of the gas in the gas-liquid mixing pipeline, the flow rate of the liquid is increased, so that the frequency generated by the liquid striking the pipe wall is increased, and the frequency generated by the liquid and the solid striking the pipe wall is partially overlapped, and the frequency of the solid and the liquid cannot be effectively separated under the condition, so that the sand yield determined according to the frequency is inaccurate.
The disclosure aims to provide a method capable of accurately monitoring sand yield in a gas-liquid mixing and conveying pipeline. The sand output monitoring method provided by the disclosure is described in detail below through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
As shown in fig. 1, the present disclosure provides a sand output monitoring method, and an example of the sand output monitoring method provided by the present disclosure is described below by taking an execution body as an electronic device. The method may include steps S101 to S104 described below.
In step S101, the mass flow of the fluid in the pipeline during the monitoring period is acquired.
Wherein the fluid comprises: liquid and gas.
In some examples of the present disclosure, the mass flow of the fluid in the pipeline during the monitoring period is obtained by a thermal mass flow meter. Among them, a thermal mass flowmeter is an instrument for measuring the flow rate of gas or liquid, which directly measures the mass flow rate of fluid. Thermal mass flow meters typically include a heating element that transfers heat to a fluid flowing therethrough and one or more temperature sensors, the meter measuring the change in temperature of the fluid as it flows through the heating element, the mass flow of the fluid being proportional to the amount of heat it absorbs or carries away at a constant heat input. By measuring the change in temperature of the fluid, the flow meter can calculate the mass flow of the fluid. This calculation is independent of the pressure and temperature conditions of the fluid, thus providing a direct mass flow measurement.
One of the most common types of thermal mass flow meters is based on the principle of constant temperature difference, which comprises two heat sensitive elements, a heating element and a temperature sensor. The heating element is heated to a constant temperature that is higher than the temperature of the fluid. As the fluid passes, it takes away a portion of the heat. The greater the flow, the more heat is carried away. The temperature sensor is used to measure the temperature difference between the heating element and the fluid, which is proportional to the flow rate.
Another type is based on the constant power principle, which consists of two main components: a heater (typically a resistive wire) and one or more temperature sensors. Both the heater and the sensor are in direct contact with the fluid flowing through the flow meter. In the constant power mode, the flow meter provides constant electrical power to the heater, and therefore, the heater always operates at a constant heat output. As the fluid flows through the heater it absorbs a portion of the heat, the greater the mass flow of the fluid, the more heat is absorbed, as more fluid units need to be heated. A temperature sensor in the flow meter is used to measure the temperature difference of the fluid before and after passing through the heater. The higher the mass flow of fluid, the lower the temperature of the fluid after passing through the heater, as more fluid absorbs the same heat. Since the power of the heater is constant, the fluid flow can be determined by measuring the fluid temperature difference. Specifically, the electronics within the meter calculate the mass flow of the fluid from the temperature differential. The present disclosure preferably employs a constant power thermal mass flow meter.
The thermal mass flowmeter may be mounted on the inner wall of the pipeline to measure the mass flow of fluid in the pipeline by contact. However, the method of installing the thermal mass flowmeter in a contact manner requires the on-site pipeline to be destroyed for installation, and the method of installing in a contact manner can cause permanent damage to the thermal mass flowmeter under the environment of high pressure, high density and high viscosity, resulting in immeasurable loss. Accordingly, the present disclosure preferably employs a non-contact thermal mass flow meter that is mounted to the outer wall of a pipeline, and as such, does not suffer from the problems associated with the contact mounting approach described above.
As shown in fig. 2, the working principle diagram of the constant-power thermal mass flowmeter is shown. Wherein, the reference numeral 20 indicates the wall of the pipeline, the reference numeral 21 indicates the platinum resistor, the reference numeral 22 indicates the heating belt, the reference numeral 23 indicates the gravel, and the direction indicated by the arrow is the gas-liquid flowing direction. Two metal platinum resistors are inserted into the measuring pipeline, currents with different magnitudes are respectively introduced into the measuring pipeline, wherein one of the two metal platinum resistors is introduced with small current to measure the temperature of the fluid, which is called a temperature measuring resistor, and the other platinum resistor is introduced with heating current with constant power to measure the flow rate of the fluid, which is called a velometer resistor. When the fluid is static, the temperature of the velometer resistor is raised by constant power current, so that the temperature difference between the velometer resistor and the temperature measuring resistor is maximum when the thermal balance is achieved. When the fluid starts to flow, the velocimeter resistor takes away more heat by the fluid, so that the temperature difference between the velocimeter resistor and the velocimeter resistor changes along with the flow, and the flow of the fluid can be obtained by utilizing the temperature of the velocimeter resistor according to the thermal diffusion principle.
In particular, the method comprises the steps of,
Wherein P w represents the constant power supplied, I w represents the current flowing into the tachometer resistor, R w represents the resistance of the tachometer resistor, h represents the convective heat transfer coefficient, a represents the side area of the platinum resistor, and since the platinum resistor is a cylinder, i.e. a=pi ld; Δt represents the temperature difference between the platinum resistance probe and the fluid; l represents the length of the platinum resistor; d represents the diameter of the platinum resistor; t w represents the temperature of the tachometer resistor; t f represents the temperature of the temperature measuring resistor.
Given the convective heat transfer coefficient h of the fluid, the heat balance relationship of the fluid can be given by the above equation. Based on studies of heat transfer and introduction of noose numberPrandtl/>And Reynolds number/>Three are dimensionless parameters, and the relation of the three is expressed by the following theoretical equation (2):
Nu＝f(Re,Pr) (2)
Wherein lambda f represents the thermal conductivity of the fluid under test; η represents the dynamic viscosity of the fluid; c p represents the specific heat capacity of the fluid; ρ represents the density of the fluid; v denotes the flow rate of the fluid, h denotes the convective heat transfer coefficient, d denotes the diameter of the platinum resistance, and according to (1) and (2), a heat balance relationship (3) is obtained:
The above formula does not give a specific functional relationship and cannot be used directly. Therefore, to determine a specific relationship between fluid flow and heat, a specific expression of nu=f (Re, pr) needs to be determined. According to the heat exchange formula proposed by Kramers (1946):
Nu＝0.42Pr0.2+0.57Pr0.33Re0.5 (4)
combining (3) and (4) to obtain (5) as
Pw＝πlλf(TW-Tf)(0.42Pr0.2+0.57Pr0.33Re0.5) (5)
A c＝0.42πlλfPr0.2 is set up to be the same as the first embodiment,Convective heat transfer formula (6) for platinum resistance:
Since the platinum resistor Pt 100 has a strong linearity with temperature change in the temperature range of 0 to 100 ℃, the expression between the resistance value and the temperature of the platinum resistor is obtained: r PT100 =100+3.9t; thus, T w-Tf in equation (6) above can be represented by a resistor, namely:
Wherein, R w represents the resistance of the tachometer resistor, and R f represents the resistance of the tachometer resistor.
According to formulas (6) and (7), the following (8) can be obtained:
Where q m represents the mass flow rate of the fluid and S represents the cross-sectional area of the pipeline.
In summary, the mass flow of the fluid can be finally obtained according to the formula (8).
In step S102, a first voltage signal corresponding to the liquid in the line is determined based on the mass flow.
The use of acoustic detection techniques, such as acoustic or ultrasonic sensors, to monitor the voltage signal is due to the impact of liquid and solid gravel against the pipe wall, and therefore the monitored voltage signal is positively correlated with the kinetic energy of the liquid and solid impacting the pipe wall, i.e. the voltage signal is equal to the product of the kinetic energy and a calibration coefficient, which varies from sensor to sensor. Therefore, the kinetic energy of the liquid in the pipeline is determined according to the mass flow, so that a first voltage signal corresponding to the liquid can be determined.
In some embodiments of the present disclosure, as shown in fig. 3 in conjunction with fig. 1, the above determination of the first voltage signal corresponding to the liquid in the pipeline based on the mass flow rate may be specifically implemented by the following steps S102a to S102 c.
In step S102a, the liquid mass and liquid flow rate of the liquid in the line are determined based on the mass flow rate.
Mass flow refers to the mass of fluid passing through a section of a pipeline per unit time, and therefore, the mass of liquid and the flow rate of the liquid in the pipeline can be determined based on the density of the liquid in the pipeline, the length of monitoring, and the cross-sectional area of the pipeline.
Specifically, in some embodiments of the present disclosure, as shown in fig. 4 in conjunction with fig. 3, the above-mentioned determination of the liquid mass and the liquid flow rate of the liquid in the pipeline based on the mass flow rate may be specifically achieved through the following step S102 d.
In step S102d, the liquid mass and the liquid flow rate of the liquid in the line are determined by the first formula and the second formula based on the mass flow rate.
The first formula is:
m Liquid and its preparation method ＝qm*t；
the second formula is:
Where m Liquid and its preparation method represents the mass of liquid in the pipeline during the monitoring period, q m represents the mass flow rate, t the monitoring period, v Liquid and its preparation method represents the liquid flow rate, S represents the cross-sectional area of the pipeline, and ρ represents the density of the liquid.
In step S102b, the kinetic energy of the liquid is determined from the liquid mass and the liquid flow rate.
Specifically, the kinetic energy of the liquid may be determined according to formula (9).
Where E Liquid and its preparation method represents the kinetic energy of the liquid, m Liquid and its preparation method represents the mass of liquid in the pipeline during the monitoring period, and v Liquid and its preparation method represents the liquid flow rate.
In step S102c, the kinetic energy of the liquid is converted into a first voltage signal.
In some embodiments of the present disclosure, as shown in fig. 5 in conjunction with fig. 4, the above-mentioned conversion of the kinetic energy of the liquid into the first voltage signal may be specifically implemented through the following step S102 e.
In step S102e, the kinetic energy of the liquid is converted into a first voltage signal according to a third formula.
The third formula is:
Where V represents the first voltage signal, t the monitoring time period, c represents the system constant, and c is not 0, m Liquid and its preparation method represents the liquid mass, V Liquid and its preparation method represents the liquid flow rate.
In step S103, a target voltage signal is determined based on the monitored second voltage signal and the first voltage signal.
When gravel or liquid impinges on the ultrasonic sensor, its kinetic energy is converted into other forms of energy, some of which is converted into electrical energy. This part of the energy may be converted into a voltage signal, i.e. a second voltage signal, by circuitry in the detector.
The second voltage signal monitored by using the acoustic detection technology comprises a sound signal generated by liquid and gravel impacting the pipe wall, so that the first voltage signal generated by the liquid impacting the pipe wall is determined, the first voltage signal in the second voltage signal is removed, the rest voltage signal indicates that the gravel impacts the pipe wall, the overlapping part of the liquid and the solid is removed, and the rest voltage signal is the voltage signal generated by the gravel impacting.
Further, in order to obtain a signal that the gravel hits the pipe wall more accurately, in some embodiments of the present disclosure, as shown in fig. 6 in conjunction with fig. 1, the above-mentioned determination of the target voltage signal based on the monitored second voltage signal and the first voltage signal may be specifically achieved through the following steps S103a and S103 b.
In step S103a, the first voltage signal is removed from the second voltage signal, resulting in a third voltage signal.
In step S103b, the third voltage signal is subjected to high-pass filtering processing to obtain a target voltage signal.
A high pass filter is a signal processing filter that functions to filter out components of the input signal below a certain cut-off frequency, leaving only components above that frequency. The cut-off frequency of a high pass filter is called the "high pass cut-off frequency" and determines which frequency components can pass through the filter and which cannot. The high pass filter can filter out low frequency noise in the input signal, thereby improving the definition and quality of the signal.
The greater the impact force per unit time, the higher the impact frequency, and the kinetic energy generated by the impact is proportional to the voltage value output by the sensor. Voltage signal generated by a gravel impact: when gravel impacts a pipeline or sensor, it typically produces a short, sharp impact sound wave due to its relatively low mass and relatively high stiffness. Such an impact will produce a high frequency voltage signal because the contact time of the gravel with the pipe wall is short, and the resulting sound waves and corresponding voltage response are relatively sharp and rapid. The signal produced by a gravel impact typically has a higher frequency content. In contrast, sound waves generated upon impact with a liquid are typically lower in frequency. This is because the flow and impact process of the liquid is more continuous and smooth, and does not produce sharp impact sounds like gravel. The voltage signal generated by the liquid impact generally exhibits a lower frequency fluctuation, reflecting the continuity of the liquid flow and the smoothness of the impact process.
Therefore, after the voltage signals overlapped by the liquid and the solid are removed, the gravel impact signals can be further filtered by a high-pass filtering method so as to filter out the low-frequency voltage signals generated by the liquid impact, thereby further improving the accuracy of sand production monitoring.
In step S104, the sand output of the pipeline during the monitoring period is determined according to the target voltage signal.
Optionally, if the target voltage signal is weak, the target voltage signal may be amplified, and the amplified target voltage signal may be calibrated as necessary to ensure accuracy of the signal, and the sand amount may be estimated according to the calibrated voltage signal.
Specifically, the relation between the sand output and the voltage signal may be that the voltage signal is input into the sand output prediction model based on a sand output prediction model obtained by training through experimental data or historical data in advance to obtain the output sand output; or establishing a functional relation between the sand yield and the voltage signal, and determining the sand yield according to the functional relation.
Preferably, in some embodiments of the present disclosure, the calculated amount of the sand output is less by the functional relation, so that the efficiency of converting the voltage signal into the sand output is improved. Specifically, referring to fig. 1, as shown in fig. 7, the above-mentioned determination of the sand output of the pipeline in the monitoring period according to the target voltage signal may be specifically implemented by the following step S104 a.
In step S104a, the sand output of the pipeline during the monitoring period is determined according to the target voltage signal by a fourth formula.
The fourth formula is:
the time length between t2 and t1 is the monitoring time length, v Sand and sand represents the gravel flow speed, U is the amplitude of the target voltage signal, S represents the sectional area of the pipeline, and K is a preset constant.
The specific determination process of the fourth formula is as follows:
The mass of the ith sand grain impacting the pipe wall in the monitoring time period t is recorded as m i, n is the number of the sand grains impacting the pipe wall in the monitoring time period, and the relation between the mass of the single sand grain at the position of the pipe elbow and the total mass is as follows:
Considering the randomness of the impact of the sand, not every sand will produce a valid impact, and therefore a factor k is introduced, where k+.1, km t is the total mass of sand during the monitoring period t.
Assuming that sand has the same flow rate with the fluid, statistically, the product of the total mass of sand flowing through the pipe elbow and the square of the velocity over the monitored period t satisfies the relationship:
Where v i denotes the speed at which the ith sand grain moves in the pipeline, For indicating the kinetic energy of the sand, Q represents the flow of fluid through the pipe at a fixed location, S represents the cross-sectional area of the pipe, v represents the velocity of the fluid where the gravel follows the flow of fluid and therefore the velocity of the gravel is v.
The amplitude of the voltage signal monitored by the ultrasonic sensor is recorded as U, and the relation between the amplitude of the voltage signal and the kinetic energy generated by the sand striking the pipe wall is as follows:
Where C is a proportionality constant, which depends on pipe diameter, flow rate, sand diameter, gas-to-liquid ratio, sand density, etc.
It can be seen from the combination of the formula (10) and the formula (11):
Order the Then it is obtainable according to the above formula (12):
integrating the above formula (13) can obtain the total sand yield M in the observation time:
therefore, the relation between the monitored voltage signal and the sand yield can be determined according to the formula (13).
In some embodiments of the present disclosure, a visual interface is provided. And (3) storing the real-time monitoring voltage signal and the sand output obtained by conversion, such as: and (3) saving the instantaneous sand output, the accumulated sand output and the like, and the constructor can play back the data saved in the history or monitor the current real-time data in the visual interface according to the needs. The constructor can analyze and read the collected historical data, so that subsequent operation is guided better.
In summary, the sand output monitoring method provided by the disclosure can be used for monitoring the sand output in a gas-liquid mixed transportation pipeline, and the voltage signal corresponding to the liquid is determined according to the mass flow, and the influence of the voltage signal corresponding to the liquid is removed from the monitored voltage signal, so that the voltage signal generated by the impact of effective gravel on the pipe wall is extracted, and the sand output determined based on the finally obtained target voltage signal is more accurate.
Fig. 8 is a block diagram of a sand output monitoring device according to the present disclosure, as shown in fig. 8, the device includes: an acquisition section 801, a determination section 802;
The acquisition portion 801 is configured to acquire a mass flow rate of fluid in the pipeline over a monitored period of time, the fluid comprising: liquids, gases and solids;
the determining portion 802 is configured to determine a first voltage signal corresponding to the liquid in the pipeline based on the mass flow rate;
the determining portion 802 is further configured to determine a target voltage signal based on the monitored second voltage signal and the first voltage signal;
the determining portion 802 is further configured to determine the sand out of the pipeline during the monitoring period based on the target voltage signal.
In some embodiments of the present disclosure, the determining portion 802 is specifically configured to remove the first voltage signal from the second voltage signal to obtain a third voltage signal; and carrying out high-pass filtering processing on the third voltage signal to obtain a target voltage signal.
In some embodiments of the present disclosure, the apparatus further comprises: a conversion section; the determination module 802 is specifically configured to determine a liquid mass and a liquid flow rate of the liquid in the pipeline based on the mass flow rate; determining the kinetic energy of the liquid according to the liquid mass and the liquid flow rate; the conversion section is configured to convert kinetic energy of the liquid into a first voltage signal.
In some embodiments of the present disclosure, the determining portion 802 is specifically configured to determine a liquid mass and a liquid flow rate of the liquid in the pipeline based on the mass flow rate through the first equation and the second equation;
The first formula is:
m Liquid and its preparation method ＝qm*t；
the second formula is:
Where m Liquid and its preparation method represents the liquid mass, q m represents the mass flow, t the monitoring period, v Liquid and its preparation method represents the liquid flow rate, S represents the cross-sectional area of the pipeline, ρ represents the density of the liquid.
In some embodiments of the present disclosure, the converting portion is specifically configured to convert kinetic energy of the liquid into a first voltage signal according to a third formula;
the third formula is:
Where V represents the first voltage signal, t the monitoring time period, c represents the system constant, and c is not 0, m Liquid and its preparation method represents the liquid mass, V Liquid and its preparation method represents the liquid flow rate.
In some embodiments of the present disclosure, the determining portion 802 is specifically configured to determine, according to the target voltage signal, the sand output of the pipeline during the monitoring period through a fourth formula;
the fourth formula is:
the time length between t2 and t1 is the monitoring time length, v Sand and sand represents the gravel flow speed, U is the amplitude of the target voltage signal, S represents the sectional area of the pipeline, and K is a preset constant.
In some embodiments of the present disclosure, the obtaining portion 801 is specifically configured to obtain the mass flow rate of the fluid through a non-contact thermal mass flow meter.
It should be noted that, the sand output monitoring device may be an electronic device in the above method embodiment of the present application, or may be a functional module and/or a functional entity in the electronic device that can implement a function of the device embodiment, and the embodiment of the present application is not limited.
In the embodiment of the application, each module can realize the sand output monitoring method provided by the embodiment of the method, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted.
Referring to fig. 9, a block diagram of an electronic device according to an exemplary embodiment of the present disclosure is shown. In some examples, the electronic device may be at least one of a smart phone, a smart watch, a desktop computer, a laptop computer, a virtual reality terminal, an augmented reality terminal, a wireless terminal, and a laptop portable computer. The electronic device has a communication function and can access a wired network or a wireless network. An electronic device may refer broadly to one of a plurality of terminals, and those skilled in the art will recognize that the number of terminals may be greater or lesser.
As shown in fig. 9, the electronic device in the present disclosure may include one or more of the following components: a processor 910 and a memory 920.
Optionally, the processor 910 utilizes various interfaces and lines to connect various portions of the overall electronic device, perform various functions of the electronic device, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 920, and invoking data stored in the memory 920. Alternatively, the processor 910 may be implemented in hardware in at least one of digital signal Processing (DIGITAL SIGNAL Processing, DSP), field-Programmable gate array (Field-Programmable GATEARRAY, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 910 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a neural network processor (Neural-network Processing Unit, NPU), and baseband chips, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the touch display screen; the NPU is used for realizing an artificial intelligence (ARTIFICIAL INTELLIGENCE, AI) function; the baseband chip is used for processing wireless communication. It will be appreciated that the baseband chip may not be integrated into the processor 910 and may be implemented by a single chip.
The Memory 920 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (ROM). Optionally, the memory 920 includes a non-transitory computer-readable medium (non-transitory computer-readable storage medium). Memory 920 may be used to store instructions, programs, code, sets of codes, or instruction sets. The memory 920 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above respective method embodiments, etc.; the storage data area may store data created according to the use of the electronic device, etc.
In addition, those skilled in the art will appreciate that the configuration of the electronic device shown in the above-described figures does not constitute a limitation of the electronic device, and the electronic device may include more or less components than illustrated, or may combine certain components, or may have a different arrangement of components. For example, the electronic device further includes a display screen, a camera assembly, a microphone, a speaker, a radio frequency circuit, an input unit, a sensor (such as an acceleration sensor, an angular velocity sensor, a light sensor, etc.), an audio circuit, a WiFi module, a power supply, a bluetooth module, etc., which are not described herein.
The present disclosure also provides a computer readable storage medium storing at least one instruction for execution by a processor to implement the sand production monitoring method as described in the various embodiments above.
The present disclosure also provides a computer program product comprising computer instructions stored in a computer-readable storage medium; the processor of the electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions so that the electronic device executes to implement the sand output monitoring method described in the above embodiments.
The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the sand output monitoring method, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, apparatuses, servers and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those of skill in the art will appreciate that in one or more of the examples described above, the functions described in this disclosure may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
It should be noted that: the embodiments described in the present disclosure may be arbitrarily combined without any collision.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (10)
1. A method for monitoring sand production, the method comprising:
obtaining a mass flow rate of a fluid in a pipeline during a monitoring period, the fluid comprising: liquid and gas;
Determining a first voltage signal corresponding to the liquid in the pipeline based on the mass flow;
determining a target voltage signal based on the monitored second voltage signal and the first voltage signal;
And determining the sand output of the pipeline in the monitoring time according to the target voltage signal.
2. The method of claim 1, wherein the determining a target voltage signal based on the monitored second voltage signal and the first voltage signal comprises:
Removing the first voltage signal from the second voltage signal to obtain a third voltage signal;
and carrying out high-pass filtering processing on the third voltage signal to obtain the target voltage signal.
3. The method of claim 1, wherein determining a first voltage signal corresponding to the liquid in the pipeline based on the mass flow rate comprises:
Determining a liquid mass and a liquid flow rate of the liquid in the pipeline based on the mass flow rate;
determining the kinetic energy of the liquid according to the liquid mass and the liquid flow rate;
the kinetic energy of the liquid is converted into the first voltage signal.
4. A method according to claim 3, wherein said determining the liquid mass and liquid flow rate of the liquid in the pipeline based on the mass flow comprises:
Determining a liquid mass and a liquid flow rate of the liquid in the pipeline through a first formula and a second formula based on the mass flow;
The first formula is:
m Liquid and its preparation method ＝qm*t；
The second formula is:
Wherein m Liquid and its preparation method represents the liquid mass, q m represents the mass flow rate, t the monitoring period, v Liquid and its preparation method represents the liquid flow rate, S represents the cross-sectional area of the pipeline, ρ represents the density of the liquid.
5. The method of claim 4, wherein said converting kinetic energy of said liquid into said first voltage signal comprises:
Converting kinetic energy of the liquid into the first voltage signal according to a third formula;
the third formula is:
Wherein V represents the first voltage signal, t the monitoring duration, c represents a system constant, and c is not 0, m Liquid and its preparation method represents the liquid mass, V Liquid and its preparation method represents the liquid flow rate.
6. The method of claim 1, wherein determining the sand out of the pipeline for the monitoring period based on the target voltage signal comprises:
according to the target voltage signal, determining the sand output of the pipeline in the monitoring duration through a fourth formula;
The fourth formula is:
The time length between t2 and t1 is the monitoring time length, v Sand and sand represents the gravel flow speed, U represents the amplitude of the target voltage signal, S represents the sectional area of the pipeline, and K is a preset constant.
7. The method of claim 1, wherein the obtaining a mass flow of fluid in the pipeline comprises:
and acquiring the mass flow of the fluid through a non-contact thermal mass flowmeter.
8. A sand production monitoring device, the device comprising: an acquisition section, a determination section;
The acquisition portion is configured to acquire a mass flow rate of a fluid in the pipeline during a monitoring period, the fluid comprising: liquids, gases and solids;
the determining part is configured to determine a first voltage signal corresponding to the liquid in the pipeline based on the mass flow;
The determining part is further configured to determine a target voltage signal based on the monitored second voltage signal and the first voltage signal;
the determining portion is further configured to determine a sand output amount of the pipeline in the monitoring period according to the target voltage signal.
9. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the sand production monitoring method of any one of claims 1 to 7.
10. A computer readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the sand production monitoring method according to any one of claims 1 to 7.
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