A pipeline ice blockage detection method, device and system

Abstract

The present invention discloses a pipeline ice blockage detection method, device and system, which includes: obtaining echo data collected by a magnetic resonance flowmeter located on a main pipeline, wherein the main pipeline and the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and the main pipeline and the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve; obtaining a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve; obtaining first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge; performing pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data and the second temperature and pressure data, and determining the pipeline ice blockage detection result. Through the technical solution of the embodiment of the present invention, real-time monitoring of ice blockage in the pipeline line based on the magnetic resonance flowmeter installed at the wellhead is achieved, thereby improving the efficiency and accuracy of ice blockage detection.

Description

Technical Field

[0001] The present invention relates to the technical field of petroleum production, and in particular to a pipeline ice blockage detection method, device and system. Background Art

[0002] In the oil production process, pipelines are commonly used to transport multiphase fluids extracted from the wellhead. Multiphase flow refers to a three-phase mixture of oil, gas, and water. However, ambient temperatures below -10°C can expose pipelines to extreme cold. Water within the pipelines can easily freeze due to inadequate heating, leading to severe blockages and "ice jams." Ice jams can disrupt production, and because they often occur at night in low temperatures, they are often not discovered in time. By the time they are discovered, the ice jam has already extended, making it more difficult to clear, resulting in longer production downtime and greater economic losses.

[0003] At present, ice blockage is mainly judged by manual inspection. When ice blockage is detected in the pipeline, the pipeline needs to be checked manually starting from the wellhead. The inspection process is relatively slow. Since the exact location of the ice blockage cannot be found in time, the ice blockage section is often extended, which makes it difficult to remove the blockage. Summary of the Invention

[0004] The present invention provides a pipeline ice blockage detection method, device and system to achieve real-time detection of pipeline ice blockage without manual intervention, thereby improving the efficiency and accuracy of ice blockage detection.

[0005] In a first aspect, an embodiment of the present invention provides a pipeline ice blockage detection method, comprising:

[0006] Acquiring echo data collected by a magnetic resonance flowmeter located on a main pipeline, wherein a first end of the main pipeline and a first end of the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and a second end of the main pipeline and a second end of the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve, so that fluid generated from a wellhead flows to the first external transmission pipeline;

[0007] Obtaining a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are used to control opening of the main pipeline or the bypass pipeline;

[0008] Obtaining first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline;

[0009] Pipeline ice blockage detection is performed based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data to determine a pipeline ice blockage detection result.

[0010] In a second aspect, an embodiment of the present invention further provides a pipeline ice blockage detection device, comprising:

[0011] an echo data acquisition module, configured to acquire echo data collected by a magnetic resonance flowmeter located on a main pipeline, wherein a first end of the main pipeline and a first end of the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and a second end of the main pipeline and a second end of the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve, such that fluid generated from the wellhead flows to the first external transmission pipeline;

[0012] a switch state acquisition module, configured to acquire a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline;

[0013] a temperature and pressure data acquisition module, configured to acquire first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline;

[0014] The pipeline ice blockage detection module is used to perform pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determine the pipeline ice blockage detection result.

[0015] In a third aspect, an embodiment of the present invention further provides a pipeline ice blockage detection system, characterized in that the system includes: a main pipeline, a bypass pipeline, a first external transmission pipeline, a second external transmission pipeline, a magnetic resonance flowmeter, a first three-way valve, a second three-way valve, a first temperature and pressure gauge, a second temperature and pressure gauge, and a processor; wherein,

[0016] The magnetic resonance flowmeter is located on the main pipeline. The first end of the main pipeline and the first end of the bypass pipeline are connected to the first external transmission pipeline via the first three-way valve. The second end of the main pipeline and the second end of the bypass pipeline are connected to the second external transmission pipeline via the second three-way valve. The fluid generated from the wellhead flows to the first external transmission pipeline.

[0017] The first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline;

[0018] The first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline;

[0019] The processor is used to implement the pipeline ice blockage detection method provided by any embodiment of the present invention.

[0020] The technical solution of an embodiment of the present invention is to install a magnetic resonance flowmeter on a main pipeline, connect the first end of the main pipeline and the first end of the bypass pipeline to a first external transmission pipeline via a first three-way valve, and connect the second end of the main pipeline and the second end of the bypass pipeline to a second external transmission pipeline via a second three-way valve. The fluid generated from the wellhead flows to the first external transmission pipeline. The first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline. A first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline. By using the echo data collected by the magnetic resonance flowmeter, the first switch state corresponding to the first three-way valve, the second switch state corresponding to the second three-way valve, the first temperature and pressure data corresponding to the first temperature and pressure gauge, and the second temperature and pressure data corresponding to the second temperature and pressure gauge, accurate pipeline ice blockage detection can be performed and the pipeline ice blockage detection result can be determined, thereby realizing real-time monitoring of ice blockage of the pipeline line based on the magnetic resonance multiphase flowmeter installed at the wellhead without the need for human intervention, thereby improving the efficiency and accuracy of ice blockage detection, and making it possible to timely unblock the ice-blocked pipeline, avoiding the problem of excessively long oil production stagnation due to ice blockage, and greatly reducing the economic losses caused by the oil production stagnation.

[0021] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a flow chart of a pipeline ice blockage detection method provided according to the first embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the installation positions of a magnetic resonance flowmeter, a first three-way valve, a second three-way valve, a first temperature and pressure gauge, and a second temperature and pressure gauge according to the second embodiment of the present invention;

[0025] Figure 3 This is a flow chart of a pipeline ice blockage detection method provided in accordance with the second embodiment of the present invention;

[0026] Figure 4 This is a structural diagram of a pipeline ice blockage detection device provided according to a third embodiment of the present invention;

[0027] Figure 5 It is a structural diagram of a pipeline ice blockage detection system provided by the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "target", "current", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Example 1

[0031] Figure 1 A flow chart of a method for detecting ice blockage in a pipeline is provided for the first embodiment of the present invention. This embodiment is applicable to the case of detecting ice blockage in a pipeline. Figure 1 As shown in FIG, the method can be performed by a pipeline ice blockage detection device. Figure 1 As shown, the method specifically includes the following steps:

[0032] S110. Acquire echo data collected by a magnetic resonance flowmeter located on the main pipeline, wherein a first end of the main pipeline and a first end of the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and a second end of the main pipeline and a second end of the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve, so that the fluid generated from the wellhead flows to the first external transmission pipeline.

[0033] The main pipeline may refer to a conventional pipeline for transporting fluids. A magnetic resonance flowmeter may refer to an instrument that uses the principle of nuclear magnetic resonance to measure the phase fraction and flow rate of each phase in a multiphase fluid. Echo data may refer to the superposition of the original signal with attenuation delay, generated by a signal wave reflected by a reflector and partially absorbed by the reflector. A bypass pipeline may refer to a backup pipeline for transporting liquids, allowing it to be used during main pipeline inspection and maintenance, or to relieve pressure and desilt the bypass pipeline. The first end of the main pipeline may refer to the inflow end of the fluid. The first end of the bypass pipeline may refer to the inflow end of the fluid. A three-way valve may refer to a control component in a fluid transport system, with functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion, or overflow. The first three-way valve may refer to a valve that controls the flow of fluid into the main pipeline or bypass pipeline. The first external pipeline may refer to the fluid transport pipeline between the wellhead and the first three-way valve. The second end of the main pipeline may refer to the outflow end of the fluid. The second end of the bypass pipeline may refer to the outflow end of the fluid. The second three-way valve may be a valve for controlling the flow of fluid out of the main pipeline or the bypass pipeline. The second external transmission pipeline may be used to transmit the fluid in the main pipeline or the bypass pipeline to a device for storing fluid.

[0034] Specifically, such as Figure 2 As shown, the magnetic resonance flowmeter is located on the main pipeline. The magnetic resonance flowmeter sends radio frequency pulses to the fluid in the main pipeline and collects echo signals of the radio frequency pulses, thereby obtaining echo data collected by the magnetic resonance flowmeter.

[0035] S120: Acquire a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are used to control opening of a main pipeline or a bypass pipeline.

[0036] The first switch state may refer to whether the limit sensor inside the first three-way valve is operating normally or abnormally. A normal state means the three-way valve can rotate normally without a switch failure. An abnormal state means the three-way valve cannot rotate normally due to a switch failure. The second switch state may refer to whether the limit sensor inside the second three-way valve is operating normally or abnormally.

[0037] Specifically, the positions of the first three-way valve and the second three-way valve are as follows: Figure 2As shown, the first switch state corresponding to the first three-way valve is determined based on the working state of the limit sensor in the first three-way valve, and the second switch state corresponding to the second three-way valve is determined based on the working state of the limit sensor in the second three-way valve.

[0038] S130. Obtain first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline.

[0039] The term "temperature and pressure gauge" refers to an instrument used to measure temperature and pressure data. The temperature and pressure data may refer to the specific values ​​of temperature and pressure measured by the temperature and pressure gauge.

[0040] Specifically, such as Figure 2 As shown, the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline. Based on the temperature data and pressure data displayed in the first temperature and pressure gauge, the temperature data and pressure data are extracted to obtain the first temperature and pressure data corresponding to the first temperature and pressure gauge. Based on the temperature data and pressure data displayed in the second temperature and pressure gauge, the temperature data and pressure data are extracted to obtain the second temperature and pressure data corresponding to the second temperature and pressure gauge.

[0041] S140 , performing pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determining a pipeline ice blockage detection result.

[0042] Specifically, based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, a comparison is made with the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data when pipeline ice blockage occurs, and an analysis is performed. According to the analysis results, pipeline ice blockage detection is performed to determine the pipeline ice blockage detection result.

[0043] Exemplarily, S140 may include: determining the fluid flow rate based on the echo signal attenuation rate in the echo data; determining the first temperature state and the first pressure state corresponding to the first temperature and pressure gauge based on the first temperature and pressure data; determining the second temperature state and the second pressure state corresponding to the second temperature and pressure gauge based on the second temperature and pressure data; detecting whether the fluid flow rate, the first switch state, the second switch state, the first temperature state, the first pressure state, the second temperature state and the second pressure state meet the preset pipeline ice blockage condition; if the preset pipeline ice blockage condition is met, determining that the pipeline ice blockage detection result is that pipeline ice blockage exists.

[0044] The attenuation rate of the echo signal may refer to the attenuation rate of the amplitude of the echo signal. The preset pipeline ice blockage condition may refer to a pre-set condition for determining whether ice blockage occurs in the pipeline.

[0045] Specifically, the fluid flow rate in the main pipeline is determined based on the attenuation rate of the echo signal in the echo data. A first temperature state corresponding to the first temperature and pressure gauge is determined based on the temperature in the first temperature and pressure data and the wellhead fluid temperature. A first pressure state corresponding to the first temperature and pressure gauge is determined based on the pressure in the first temperature and pressure data and the wellhead back pressure. A second temperature state corresponding to the second temperature and pressure gauge is determined based on the temperature in the second temperature and pressure data and the wellhead fluid temperature. A second pressure state corresponding to the second temperature and pressure gauge is determined based on the pressure in the second temperature and pressure data and the wellhead back pressure. The fluid flow rate, first switch state, second switch state, first temperature state, first pressure state, second temperature state, and second pressure state are tested to determine whether ice blockage has occurred. If the fluid flow rate, first switch state, second switch state, first temperature state, first pressure state, second temperature state, and second pressure state all meet the preset pipeline ice blockage conditions, the pipeline ice blockage detection result is determined to indicate pipeline ice blockage. This allows for rapid detection of pipeline ice blockage, enabling timely unblocking of the ice-blocked pipeline.

[0046] Exemplarily, based on the first temperature and pressure data, determining the first temperature state and the first pressure state corresponding to the first temperature and pressure table includes: comparing the temperature in the first temperature and pressure data with the wellhead fluid temperature to determine the first temperature state corresponding to the first temperature and pressure table; comparing the pressure in the first temperature and pressure data with the wellhead back pressure to determine the first pressure state corresponding to the first temperature and pressure table.

[0047] Specifically, the temperature in the first temperature and pressure data is compared with the wellhead fluid temperature. If the difference between the temperature in the first temperature and pressure data and the wellhead fluid temperature changes less than or equal to a preset threshold, the first temperature state corresponding to the first temperature and pressure table is determined to be a normal state. If the difference between the temperature in the first temperature and pressure data and the wellhead fluid temperature changes greater than the preset threshold, the first temperature state corresponding to the first temperature and pressure table is determined to be an abnormal state. The pressure in the first temperature and pressure data is compared with the wellhead back pressure. If the difference between the pressure in the first temperature and pressure data and the wellhead back pressure changes less than or equal to the preset threshold, the first pressure state corresponding to the first temperature and pressure table is determined to be a normal state. If the difference between the pressure in the first temperature and pressure data and the wellhead back pressure changes greater than the preset threshold, the first pressure state corresponding to the first temperature and pressure table is determined to be an abnormal state.

[0048] Exemplarily, detecting whether the fluid flow rate, the first switch state, the second switch state, the first temperature state, the first pressure state, the second temperature state and the second pressure state meet the preset pipeline ice blockage condition includes: if the fluid flow rate is less than or equal to the preset flow rate, the first switch state and the second switch state are both normal states, and at least one of the first temperature state, the first pressure state, the second temperature state and the second pressure state is an abnormal state, then determining that the preset pipeline ice blockage condition is met.

[0049] The preset flow rate may refer to the flow rate of the fluid in the pipeline when ice blockage occurs. For example, the preset flow rate may be 0 or a value close to 0.

[0050] Specifically, the limit sensors in the first and second three-way valves indicate normal operation, eliminating the possibility of a pipeline blockage caused by a fault. The fluid flow rate is determined based on the echo signal attenuation rate in the echo data. Since the echo signal attenuation rate is proportional to the flow rate, if the echo signal attenuates slightly or essentially not attenuates, it indicates that the fluid flow rate in the pipeline is low, while the wellhead is open, indicating normal production, indicating a pipeline blockage. If the fluid flow rate is less than or equal to a preset flow rate, the first and second switch states are both normal, and at least one of the first, first, second, and second pressure states is abnormal, indicating that the pipeline blockage is caused by ice blockage, the pipeline is determined to meet the preset pipeline ice blockage conditions, and ice blockage is determined to be present within the pipeline. This allows for a quick determination of whether the pipeline itself is ice-blocked.

[0051] The technical solution of an embodiment of the present invention is to install a magnetic resonance flowmeter on a main pipeline, connect the first end of the main pipeline and the first end of the bypass pipeline to a first external transmission pipeline via a first three-way valve, and connect the second end of the main pipeline and the second end of the bypass pipeline to a second external transmission pipeline via a second three-way valve. The fluid generated from the wellhead flows to the first external transmission pipeline. The first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline. A first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline. By using the echo data collected by the magnetic resonance flowmeter, the first switch state corresponding to the first three-way valve, the second switch state corresponding to the second three-way valve, the first temperature and pressure data corresponding to the first temperature and pressure gauge, and the second temperature and pressure data corresponding to the second temperature and pressure gauge, accurate pipeline ice blockage detection can be performed and the pipeline ice blockage detection result can be determined, thereby realizing real-time monitoring of ice blockage of the pipeline line based on the magnetic resonance multiphase flowmeter installed at the wellhead without the need for human intervention, improving the efficiency and accuracy of ice blockage detection, and timely unblocking the ice-blocked pipeline, avoiding the problem of excessively long oil production stagnation due to ice blockage, and greatly reducing the economic losses caused by the stagnation of oil production.

[0052] Example 2

[0053] Figure 3 This is a flowchart of a pipeline ice blockage detection method provided in Example 2 of the present invention. This example, based on the previous examples, describes in detail the specific process for determining the location of a pipeline ice blockage. Explanations of terms that are identical or corresponding to those in the previous examples are omitted here.

[0054] See also Figure 3 Another pipeline ice blockage detection method provided in this embodiment specifically includes the following steps:

[0055] S210: Acquire echo data collected by a magnetic resonance flowmeter located on the main pipeline.

[0056] S220: Acquire a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve.

[0057] S230: Obtain first temperature and pressure data corresponding to the first temperature and pressure table and second temperature and pressure data corresponding to the second temperature and pressure table.

[0058] S240 , performing pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determining a pipeline ice blockage detection result.

[0059] S250: When the pipeline ice blockage detection result indicates that the pipeline is ice-blocked, determine a target pipeline in an open state among the main pipeline and the bypass pipeline.

[0060] The target pipeline may refer to a pipeline opened under the control of the first three-way valve and the second three-way valve.

[0061] Specifically, after determining that the pipeline ice blockage detection result is that there is pipeline ice blockage, based on the switch position corresponding to the first three-way valve and the switch position corresponding to the second three-way valve, the pipeline in the main pipeline and the bypass pipeline that is in an open state is determined as the target pipeline.

[0062] S260 : Determine the ice blockage position of the pipeline based on the target pipeline, the first amplitude of the echo in the echo data, the first temperature state, the first pressure state, the second temperature state, and the second pressure state.

[0063] The first echo amplitude may refer to the amplitude corresponding to the first return wave in the echo signal. The pipeline ice blockage location may include the first external transmission pipeline, the second external transmission pipeline, and the target pipeline.

[0064] Specifically, if the first and second three-way valves are determined to be intact, the location of the ice blockage in the pipeline is determined based on the target pipeline, the first echo amplitude in the echo data, the first temperature and pressure conditions corresponding to the first temperature and pressure gauge, and the second temperature and pressure conditions corresponding to the second temperature and pressure gauge. This allows a rough determination of the location of the ice blockage in the pipeline, narrowing the detection range.

[0065] Exemplarily, S260 may include: if the target pipeline is a main pipeline, determining the location of the pipeline ice blockage based on the first echo amplitude, the first temperature state, the first pressure state, the second temperature state, and the second pressure state in the echo data; if the target pipeline is a bypass pipeline, determining the location of the pipeline ice blockage based on the first echo amplitude, the second temperature state, and the second pressure state in the echo data.

[0066] Specifically, if the target pipeline is a main pipeline, the location of the ice blockage is determined based on the echo data's first amplitude, the first temperature and pressure corresponding to the first temperature and pressure gauge, and the second temperature and second pressure corresponding to the second temperature and pressure gauge. If the target pipeline is a bypass pipeline, the location of the ice blockage is determined based on the echo data's first amplitude, the second temperature and second pressure corresponding to the second temperature and pressure gauge. This allows for rapid determination of the approximate location of the ice blockage, improving blockage removal efficiency.

[0067] Exemplarily, the location of the pipeline ice blockage is determined based on the echo first amplitude, the first temperature state, the first pressure state, the second temperature state and the second pressure state in the echo data, including: if the first temperature state, the first pressure state, the second temperature state and the second pressure state are all abnormal states, and the echo first amplitude in the echo data continues to decrease, then it is determined that the location of the pipeline ice blockage is located in the first external transmission pipeline; if the first temperature state, the first pressure state, the second temperature state and the second pressure state are all abnormal states, and the echo first amplitude in the echo data remains unchanged, then it is determined that the location of the pipeline ice blockage is located in the main pipeline; if the first temperature state and the second temperature state are both abnormal states, the first pressure state and the second pressure state are both normal states, and the echo first amplitude in the echo data remains unchanged, then it is determined that the location of the pipeline ice blockage is located in the second external transmission pipeline.

[0068] Specifically, when the target pipeline is a main pipeline, if the first temperature state and the first pressure state corresponding to the first temperature and pressure gauge are both abnormal operating states, the second temperature state and the second pressure state corresponding to the second temperature and pressure gauge are both abnormal states, and the first amplitude of the echo in the echo data continues to decrease, then the location of the pipeline ice blockage is determined to be located in the first external transmission pipeline. If the first temperature state and the first pressure state corresponding to the first temperature and pressure gauge are both abnormal states, the second temperature and the second pressure state corresponding to the second temperature and pressure gauge are both abnormal states, and the first amplitude of the echo in the echo data remains unchanged, then the location of the pipeline ice blockage is determined to be located in the main pipeline. If the first temperature state corresponding to the first temperature and pressure gauge is abnormal, the first pressure state corresponding to the first temperature and pressure gauge is normal, the second temperature state corresponding to the second temperature and pressure gauge is abnormal, the second pressure state corresponding to the second temperature and pressure gauge is normal, and the first amplitude of the echo in the echo data remains unchanged, then the location of the pipeline ice blockage is determined to be located in the second external transmission pipeline.

[0069] For example, as shown in Table 1, if the temperature of the first temperature and pressure gauge drops sharply and the pressure approaches 0, the temperature of the second temperature and pressure gauge drops sharply and the pressure approaches 0, and the first amplitude of the echo in the echo data continues to decrease, then the location of the pipeline ice blockage is determined to be in the first external transmission pipeline. If the temperature of the first temperature and pressure gauge drops sharply and the pressure approaches 0, the temperature of the second temperature and pressure gauge drops sharply and the pressure approaches 0, and the first amplitude of the echo in the echo data remains unchanged, then the location of the pipeline ice blockage is determined to be in the main pipeline. If the temperature of the first temperature and pressure gauge drops sharply and the pressure of the first temperature and pressure gauge is normal, the temperature of the second temperature and pressure gauge drops sharply and the pressure of the second temperature and pressure gauge is normal, and the first amplitude of the echo in the echo data remains unchanged, then the location of the pipeline ice blockage is determined to be in the second external transmission pipeline.

[0070] Table 1 Ice blockage position detection table when main pipeline is opened

[0071]

[0072]

[0073] Exemplarily, based on the first amplitude of the echo, the second temperature state and the second pressure state in the echo data, the location of the pipeline ice blockage is determined, including: if the second temperature state and the second pressure state are both abnormal states, and the first amplitude of the echo in the echo data continues to decrease, then it is determined that the location of the pipeline ice blockage is located in the first external transmission pipeline; if the second temperature state and the second pressure state are both abnormal states, and the first amplitude of the echo in the echo data remains unchanged, then it is determined that the location of the pipeline ice blockage is located in the bypass pipeline; if the second temperature state is an abnormal state, the second pressure state is a normal state, and the first amplitude of the echo in the echo data remains unchanged, then it is determined that the location of the pipeline ice blockage is located in the second external transmission pipeline.

[0074] Specifically, if the second temperature state and the second pressure state are both abnormal states, and the first amplitude of the echo in the echo data continues to decrease, it is determined that the location of the pipeline ice blockage is located in the first external transmission pipeline; if the second temperature state and the second pressure state are both abnormal states, and the first amplitude of the echo in the echo data remains unchanged, it is determined that the location of the pipeline ice blockage is located in the bypass pipeline; if the second temperature state is an abnormal state, the second pressure state is a normal state, and the first amplitude of the echo in the echo data remains unchanged, it is determined that the location of the pipeline ice blockage is located in the second external transmission pipeline.

[0075] For example, as shown in Table 2, if the temperature of the second thermometer and pressure gauge drops sharply, the pressure approaches 0, and the first amplitude of the echo decreases, the pipeline ice blockage is determined to be located in the first external transmission pipeline. If the temperature of the second thermometer and pressure gauge drops sharply, the pressure approaches 0, and the first amplitude of the echo remains unchanged, the pipeline ice blockage is determined to be located in the bypass pipeline. If the temperature of the second thermometer and pressure gauge drops sharply, the pressure remains normal, and the first amplitude of the echo remains unchanged, the pipeline ice blockage is determined to be located in the second external transmission pipeline.

[0076] Table 2 Ice blockage position detection table when bypass is opened

[0077]

[0078]

[0079] The technical solution of the embodiments of the present invention, after determining that a pipeline ice blockage exists, identifies a target pipeline in the main pipeline and bypass pipeline that is open. Based on the target pipeline, the first echo amplitude value in the echo data, the first temperature state, the first pressure state, the second temperature state, and the second pressure state, the location of the pipeline ice blockage is determined. This allows for both qualitative determination of the pipeline ice blockage and a rough determination of the ice blockage's location, significantly narrowing the scope for determining the ice blockage location and further improving the efficiency of ice blockage resolution.

[0080] Example 3

[0081] Figure 4 This is a schematic diagram of the structure of a pipeline ice blockage detection device provided in the third embodiment of the present invention. Figure 4 As shown, the device includes: an echo data acquisition module 310, a switch state acquisition module 320, a temperature and pressure data acquisition module 330 and a pipeline ice blockage detection result determination module 340.

[0082] The echo data acquisition module 310 is configured to acquire echo data collected by a magnetic resonance flowmeter located on a main pipeline, wherein a first end of the main pipeline and a first end of the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and a second end of the main pipeline and a second end of the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve, so that fluid generated from the wellhead flows to the first external transmission pipeline;

[0083] a switch state acquisition module 320, configured to acquire a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are configured to control the opening of the main pipeline or the bypass pipeline;

[0084] a temperature and pressure data acquisition module 330 for acquiring first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline;

[0085] The pipeline ice blockage detection module 340 is configured to perform pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determine a pipeline ice blockage detection result.

[0086] The technical solution of this embodiment is to obtain echo data collected by a magnetic resonance flowmeter located on the main pipeline, wherein the first end of the main pipeline and the first end of the bypass pipeline are connected to the first external transmission pipeline through a first three-way valve, and the second end of the main pipeline and the second end of the bypass pipeline are connected to the second external transmission pipeline through a second three-way valve, and the fluid generated from the wellhead flows to the first external transmission pipeline. The first switch state corresponding to the first three-way valve and the second switch state corresponding to the second three-way valve are obtained, wherein the first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline. The first temperature and pressure data corresponding to the first temperature and pressure gauge and the second temperature and pressure data corresponding to the second temperature and pressure gauge are obtained, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline. Based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, pipeline ice blockage detection is performed to determine the pipeline ice blockage detection result, thereby realizing real-time monitoring of ice blockage of the pipeline line based on the magnetic resonance multiphase flowmeter installed at the wellhead without human intervention, improving the efficiency and accuracy of ice blockage detection, and making it possible to timely unblock ice-blocked pipelines, avoiding the problem of prolonged oil production stagnation due to ice blockage, and greatly reducing the economic losses caused by the oil production stagnation.

[0087] Optionally, the pipeline ice blockage detection result determination module 340 includes:

[0088] a fluid flow rate unit, configured to determine a fluid flow rate based on an echo signal attenuation rate in the echo data;

[0089] a first state determining unit, configured to determine a first temperature state and a first pressure state corresponding to the first temperature-pressure table based on the first temperature-pressure data;

[0090] a second state determining unit, configured to determine a second temperature state and a second pressure state corresponding to the second temperature-pressure table based on the second temperature-pressure data;

[0091] a preset pipeline ice blockage condition monitoring unit, configured to detect whether the fluid flow rate, the first switch state, the second switch state, the first temperature state, the first pressure state, the second temperature state, and the second pressure state satisfy a preset pipeline ice blockage condition;

[0092] The pipeline ice blockage detection result determining unit determines that the pipeline ice blockage detection result is that pipeline ice blockage exists if a preset pipeline ice blockage condition is met.

[0093] Optionally, the first state determination unit is specifically used to: compare the temperature in the first temperature and pressure data with the wellhead fluid temperature to determine the first temperature state corresponding to the first temperature and pressure table; compare the pressure in the first temperature and pressure data with the wellhead back pressure to determine the first pressure state corresponding to the first temperature and pressure table.

[0094] Optionally, a preset pipeline ice blockage condition monitoring unit is specifically used to: determine that the preset pipeline ice blockage condition is met if the fluid flow rate is less than or equal to a preset flow rate, the first switch state and the second switch state are both normal states, and at least one of the first temperature state, the first pressure state, the second temperature state and the second pressure state is an abnormal state.

[0095] Optionally, the device further comprises:

[0096] a target pipeline determining unit, configured to determine a target pipeline in an open state among the main pipeline and the bypass pipeline;

[0097] The pipeline ice blockage position determining unit is configured to determine the pipeline ice blockage position based on the target pipeline, the first echo amplitude in the echo data, the first temperature state, the first pressure state, the second temperature state, and the second pressure state.

[0098] Optionally, the pipeline ice blockage position determination unit is specifically used to: if the target pipeline is the main pipeline, determine the pipeline ice blockage position based on the echo first amplitude value, the first temperature state, the first pressure state, the second temperature state and the second pressure state in the echo data; if the target pipeline is the bypass pipeline, determine the pipeline ice blockage position based on the echo first amplitude value, the second temperature state and the second pressure state in the echo data.

[0099] Optionally, the pipeline ice blockage position determination unit is further specifically used to: if the first temperature state, the first pressure state, the second temperature state and the second pressure state are all abnormal states, and the first amplitude of the echo in the echo data continues to decrease, then determine that the pipeline ice blockage position is located in the first external transmission pipeline; if the first temperature state, the first pressure state, the second temperature state and the second pressure state are all abnormal states, and the first amplitude of the echo in the echo data remains unchanged, then determine that the pipeline ice blockage position is located in the main pipeline; if the first temperature state and the second temperature state are both abnormal states, the first pressure state and the second pressure state are both normal states, and the first amplitude of the echo in the echo data remains unchanged, then determine that the pipeline ice blockage position is located in the second external transmission pipeline.

[0100] Optionally, the pipeline ice blockage position determination unit is further specifically used to: if the second temperature state and the second pressure state are both abnormal states, and the first amplitude of the echo in the echo data continues to decrease, then determine that the pipeline ice blockage position is located in the first external transmission pipeline; if the second temperature state and the second pressure state are both abnormal states, and the first amplitude of the echo in the echo data remains unchanged, then determine that the pipeline ice blockage position is located in the bypass pipeline; if the second temperature state is an abnormal state, the second pressure state is a normal state, and the first amplitude of the echo in the echo data remains unchanged, then determine that the pipeline ice blockage position is located in the second external transmission pipeline.

[0101] The Internet of Vehicles data synchronization device provided in the embodiment of the present invention can execute the Internet of Vehicles data synchronization method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0102] Figure 5 This is a schematic diagram of the structure of a pipeline ice blockage detection system provided by the fourth embodiment of the present invention. Figure 5 As shown, the system specifically includes: a main pipeline 401, a bypass pipeline 402, a first external transmission pipeline 403, a second external transmission pipeline 404, a magnetic resonance flowmeter 405, a first three-way valve 406, a second three-way valve 407, a first temperature and pressure gauge 408, a second temperature and pressure gauge 409 and a processor 410.

[0103] In which, the magnetic resonance flowmeter 405 is located on the main pipeline 401, the first end of the main pipeline 401 and the first end of the bypass pipeline 402 are connected to the first external transmission pipeline 403 through the first three-way valve 406, and the second end of the main pipeline 401 and the second end of the bypass pipeline 402 are connected to the second external transmission pipeline 404 through the second three-way valve 407, and the fluid generated from the wellhead flows to the first external transmission pipeline 403; the first three-way valve 406 and the second three-way valve 407 are used to control the opening of the main pipeline 401 or the bypass pipeline 402; the first temperature and pressure gauge 408 is installed between the magnetic resonance flowmeter 405 and the first three-way valve 406, and the second temperature and pressure gauge 409 is installed on the second external transmission pipeline 404; the processor 410 is used to implement the pipeline ice blockage detection method provided by any embodiment of the present invention.

[0104] The pipeline ice blockage detection system of this embodiment obtains echo data collected by a magnetic resonance flowmeter located on the main pipeline, wherein the first end of the main pipeline and the first end of the bypass pipeline are connected to the first external transmission pipeline via a first three-way valve, and the second end of the main pipeline and the second end of the bypass pipeline are connected to the second external transmission pipeline via a second three-way valve, so that the fluid generated from the wellhead flows to the first external transmission pipeline. The system obtains a first switching state corresponding to the first three-way valve and a second switching state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline. The system obtains first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline. Pipeline ice blockage detection is performed based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and the pipeline ice blockage detection result is determined, thereby realizing real-time monitoring of ice blockage of the pipeline line based on the magnetic resonance multiphase flowmeter installed at the wellhead, so as to timely unblock the ice-blocked pipeline, avoid the problem of excessively long oil production stagnation due to ice blockage, and greatly reduce the economic losses caused by the oil production stagnation.

[0105] Those skilled in the art will appreciate that the modules or steps of the present invention described above can be implemented using a general-purpose computing device. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they can be implemented using program code executable by a computer device, which can then be stored in a storage device and executed by the computing device. Alternatively, they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

[0106] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A pipeline ice blockage detection method, characterized in that: include: Acquiring echo data collected by a magnetic resonance flowmeter located on a main pipeline, wherein a first end of the main pipeline and a first end of the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and a second end of the main pipeline and a second end of the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve, so that fluid generated from a wellhead flows to the first external transmission pipeline; Obtaining a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are used to control opening of the main pipeline or the bypass pipeline; Obtaining first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline; performing pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determining a pipeline ice blockage detection result; The performing pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determining a pipeline ice blockage detection result includes: determining a fluid flow rate based on an echo signal decay rate in the echo data; determining a first temperature state and a first pressure state corresponding to the first temperature-pressure table based on the first temperature-pressure data; determining a second temperature state and a second pressure state corresponding to the second temperature-pressure table based on the second temperature-pressure data; detecting whether the fluid flow rate, the first switch state, the second switch state, the first temperature state, the first pressure state, the second temperature state, and the second pressure state satisfy a preset pipeline ice blockage condition; If the preset pipeline ice blockage condition is met, the pipeline ice blockage detection result is determined to be pipeline ice blockage; After the pipeline ice blockage detection result is determined to be pipeline ice blockage, the following steps are also included: Determining a target pipeline in an open state among the main pipeline and the bypass pipeline; Determining a location of ice blockage in the pipeline based on the target pipeline, the first amplitude of the echo in the echo data, the first temperature state, the first pressure state, the second temperature state, and the second pressure state; The determining of the ice blockage position of the pipeline based on the target pipeline, the first amplitude of the echo in the echo data, the first temperature state, the first pressure state, the second temperature state, and the second pressure state includes: If the target pipeline is the main pipeline, determining the location of the ice blockage in the pipeline based on the first echo amplitude, the first temperature state, the first pressure state, the second temperature state, and the second pressure state in the echo data; If the target pipeline is the bypass pipeline, the ice blockage position of the pipeline is determined based on the first amplitude of the echo in the echo data, the second temperature state, and the second pressure state.

2. The method according to claim 1, characterized in that The determining, based on the first temperature and pressure data, a first temperature state and a first pressure state corresponding to the first temperature and pressure table includes: Comparing the temperature in the first temperature and pressure data with the wellhead fluid temperature to determine a first temperature state corresponding to the first temperature and pressure table; The pressure in the first temperature and pressure data is compared with the wellhead back pressure to determine a first pressure state corresponding to the first temperature and pressure table.

3. The method according to claim 1, characterized in that The detecting whether the fluid flow rate, the first switch state, the second switch state, the first temperature state, the first pressure state, the second temperature state, and the second pressure state meet a preset pipeline ice blockage condition includes: If the fluid flow rate is less than or equal to a preset flow rate, the first switch state and the second switch state are both normal states, and at least one of the first temperature state, the first pressure state, the second temperature state, and the second pressure state is an abnormal state, it is determined that the preset pipeline ice blockage condition is met.

4. The method according to claim 1, wherein The determining the location of ice blockage in the pipeline based on the first amplitude of the echo in the echo data, the first temperature state, the first pressure state, the second temperature state, and the second pressure state includes: If the first temperature state, the first pressure state, the second temperature state, and the second pressure state are all abnormal, and the first amplitude of the echo in the echo data continues to decrease, it is determined that the pipeline ice blockage is located in the first external transmission pipeline; If the first temperature state, the first pressure state, the second temperature state, and the second pressure state are all abnormal states, and the first amplitude of the echo in the echo data remains unchanged, it is determined that the pipeline ice blockage location is located in the main pipeline; If the first temperature state and the second temperature state are both abnormal, the first pressure state and the second pressure state are both normal, and the first amplitude of the echo in the echo data remains unchanged, it is determined that the pipeline ice blockage location is located in the second external transmission pipeline.

5. The method according to claim 4, characterized in that The determining the location of ice blockage in the pipeline based on the first amplitude of the echo in the echo data, the second temperature state, and the second pressure state includes: If both the second temperature state and the second pressure state are abnormal, and the first amplitude of the echo in the echo data continues to decrease, it is determined that the pipeline ice blockage is located in the first external transmission pipeline; If both the second temperature state and the second pressure state are abnormal, and the first amplitude of the echo in the echo data remains unchanged, it is determined that the pipeline ice blockage position is located in the bypass pipeline; If the second temperature state is an abnormal state, the second pressure state is a normal state, and the first amplitude of the echo in the echo data remains unchanged, it is determined that the pipeline ice blockage position is located in the second external transmission pipeline.

6. A pipeline ice blockage detection device, characterized in that: include: an echo data acquisition module, configured to acquire echo data collected by a magnetic resonance flowmeter located on a main pipeline, wherein a first end of the main pipeline and a first end of the bypass pipeline are connected to a first external transmission pipeline via a first three-way valve, and a second end of the main pipeline and a second end of the bypass pipeline are connected to a second external transmission pipeline via a second three-way valve, such that fluid generated from the wellhead flows to the first external transmission pipeline; a switch state acquisition module, configured to acquire a first switch state corresponding to the first three-way valve and a second switch state corresponding to the second three-way valve, wherein the first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline; a temperature and pressure data acquisition module, configured to acquire first temperature and pressure data corresponding to a first temperature and pressure gauge and second temperature and pressure data corresponding to a second temperature and pressure gauge, wherein the first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline; a pipeline ice blockage detection module, configured to perform pipeline ice blockage detection based on the echo data, the first switch state, the second switch state, the first temperature and pressure data, and the second temperature and pressure data, and determine a pipeline ice blockage detection result; The pipeline ice blockage detection device is used to implement the pipeline ice blockage detection method according to any one of claims 1 to 5.

7. A pipeline ice blockage detection system, characterized in that: The system includes: a main pipeline, a bypass pipeline, a first external transmission pipeline, a second external transmission pipeline, a magnetic resonance flowmeter, a first three-way valve, a second three-way valve, a first temperature and pressure gauge, a second temperature and pressure gauge, and a processor; wherein, The magnetic resonance flowmeter is located on the main pipeline. The first end of the main pipeline and the first end of the bypass pipeline are connected to the first external transmission pipeline via the first three-way valve. The second end of the main pipeline and the second end of the bypass pipeline are connected to the second external transmission pipeline via the second three-way valve. The fluid generated from the wellhead flows to the first external transmission pipeline. The first three-way valve and the second three-way valve are used to control the opening of the main pipeline or the bypass pipeline; The first temperature and pressure gauge is installed between the magnetic resonance flowmeter and the second three-way valve, and the second temperature and pressure gauge is installed on the second external transmission pipeline; The processor is used to implement the pipeline ice blockage detection method according to any one of claims 1 to 5.

Images