Fluid flux sliding monitoring device and method based on electric and thermal linkage

Abstract

The present application relates to the technical field of seabed surveying, and in particular to a fluid flux sliding monitoring device and method based on electric and thermal linkage. The device includes: a connecting plate; a first measuring plate, the first measuring plate is arranged on one side of the connecting plate; a sliding transmitting unit, the sliding transmitting unit is arranged on the first measuring plate; a first sliding receiving unit, the first sliding receiving unit is arranged on the first measuring plate; a second measuring plate, the second measuring plate is arranged on the other side of the connecting plate; a second sliding receiving unit, the second sliding receiving unit is arranged on the second measuring plate; a control compartment, the control compartment is arranged below the connecting plate, and the control compartment is communicatively connected with the sliding transmitting unit, the first sliding receiving unit, and the second sliding receiving unit. The present application can perform long-term dynamic in-situ monitoring on the seabed, and the monitoring results are more accurate and stable.

Description

Technical Field

[0001] The present application relates to the field of seabed survey technology, and in particular to a fluid flux sliding monitoring device and method based on electric and thermal linkage. Background Art

[0002] In the relevant technologies, there are still a large number of unexplored oil and gas resources on the seabed. The existing means of monitoring seabed fluid flux include sediment sampling and laboratory analysis, acoustic or seismic wave methods, and fiber optic sensing technology. However, sediment sampling and laboratory analysis will destroy the original state of the medium. The sampling process may cause gas escape or phase change. At the same time, the time cost is high and real-time or long-term continuous monitoring cannot be achieved. Acoustic or seismic wave methods are greatly affected by background noise, the data signal-to-noise ratio is low, and can only monitor a single medium. Fiber optic sensing technology is complex to install and maintain, and deep-sea deployment requires special equipment. In summary, the existing seabed fluid flux monitoring methods generally face problems such as difficulty in multi-phase differentiation, low temporal and spatial resolution, and insufficient long-term stability during seabed surveys. It is impossible to monitor the monitoring area layer by layer to obtain more detailed and accurate seabed fluid flux data.

[0003] In summary, the technical problems existing in the relevant technologies need to be improved. Summary of the Invention

[0004] The main purpose of the embodiments of the present application is to propose a fluid flux sliding monitoring device and method based on electric and thermal linkage, which can perform long-term dynamic in-situ monitoring on the seabed, and the monitoring results are more accurate and stable.

[0005] To achieve the above objectives, one aspect of an embodiment of the present application provides a fluid flux sliding monitoring device based on electric and thermal linkage, comprising:

[0006] A connecting plate, with a lead block and a lifting ring provided above the connecting plate, the lead block being used to add counterweight when the fluid flux sliding monitoring device is sunk to the seabed, so that the fluid flux sliding monitoring device reaches a preset monitoring area; the lifting ring being used to lift the fluid flux sliding monitoring device via a cable connection when moving the fluid flux sliding monitoring device;

[0007] a first measuring plate, the first measuring plate being arranged on one side of the connecting plate;

[0008] a sliding transmitting unit, the sliding transmitting unit being arranged on the first measuring plate;

[0009] a first sliding receiving unit, the first sliding receiving unit being provided on the first measuring plate;

[0010] a second measuring plate, the second measuring plate being arranged on the other side of the connecting plate;

[0011] a second sliding receiving unit, the second sliding receiving unit being provided on the second measuring plate;

[0012] A control compartment, comprising a circuit control compartment and a heat circuit control compartment; the control compartment is disposed below the connecting plate and is in communication with the sliding transmitting unit, the first sliding receiving unit, and the second sliding receiving unit;

[0013] a baffle, disposed below the control compartment, for limiting the first and second measurement plates when inserted into the seabed for operation; the circuit control compartment and the thermal circuit control compartment are disposed between below the connection plate and above the baffle;

[0014] Among them, the sliding transmitting unit is used to transmit an electrothermal signal to the target layer on the fluid flux sliding monitoring device based on electrothermal linkage, and the first sliding receiving unit and the second sliding receiving unit are used to receive the electrothermal signal at the target layer on the fluid flux sliding monitoring device based on electrothermal linkage.

[0015] In some embodiments, the slide launch unit includes a first slide rail and a slide launcher;

[0016] The first slide rail is arranged on one side of the first measuring plate;

[0017] The sliding launcher is connected to the first sliding rail.

[0018] In some embodiments, the sliding transmitter includes a first slider, a first telescopic junction, a sliding resistance heating rod, a sliding heat insulation plate and a sliding transmitter electrode, the sliding resistance heating rod and the sliding transmitter electrode are separated by the sliding heat insulation plate, one end of the first telescopic junction is connected to the first slider, and the other end of the first telescopic junction is connected to the sliding heat insulation plate, the sliding resistance heating rod and the sliding transmitter electrode.

[0019] In some embodiments, the first sliding receiving unit includes a second sliding rail and a first sliding receiver;

[0020] The second slide rail is provided on one side of the first measuring plate, and the first sliding receiver is connected to the second slide rail;

[0021] The second sliding receiving unit includes a third sliding rail, a second sliding receiver, a fourth sliding rail and a third sliding receiver;

[0022] The third slide rail is arranged on one side of the second measuring plate, the second sliding receiver is connected to the third slide rail, the fourth slide rail is arranged on the other side of the second measuring plate, and the third sliding receiver is connected to the fourth slide rail.

[0023] In some embodiments, the first sliding receiver, the second sliding receiver, and the third sliding receiver respectively include a second slider, a second telescopic junction, a sliding temperature sensor, and a sliding receiving electrode, one end of the second telescopic junction is connected to the second slider, and the other end of the second telescopic junction is connected to the sliding temperature sensor and the sliding receiving electrode.

[0024] In some embodiments, the control compartment includes a circuit control compartment and a thermal circuit control compartment. The circuit control compartment is used to process the electrical signal data obtained by the sliding receiving electrode, and the thermal circuit control compartment is used to process the thermal signal data obtained by the sliding temperature sensor.

[0025] To achieve the above objectives, another aspect of the present application provides a fluid flux sliding monitoring method based on electric and thermal linkage, the method comprising the following steps:

[0026] Determining that the fluid flux sliding monitoring device based on electrothermal linkage reaches the seabed surface and gradually inserting the first measurement plate and the second measurement plate into the seabed, controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to be located at the top of the first slide rail, the second slide rail, the third slide rail, and the fourth slide rail, respectively, and enter an initial state;

[0027] controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to slide downward from the top simultaneously;

[0028] When it is determined that the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver have all reached the first target layer, controlling the sliding transmitter to transmit the electrothermal signal, and controlling the first sliding receiver, the second sliding receiver, and the third sliding receiver to send the received electrothermal signal to the control cabin;

[0029] Controlling the control chamber to analyze the acquired electrothermal signal to obtain a three-phase volume fraction matrix of the first target layer;

[0030] Controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to simultaneously continue to slide downward and traverse each of the target layers within a time period until they simultaneously reach the lower ends of the first sliding rail, the second sliding rail, the third sliding rail, and the fourth sliding rail;

[0031] Acquire the three-phase volume fraction matrix of the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver when traversing each target horizon;

[0032] The three-phase volume fraction matrix of each target layer is analyzed to obtain a fluid flux matrix of the first monitoring area, and the fluid flux matrix is used to characterize the dynamic change process of the fluid flux in the first monitoring area.

[0033] In some embodiments, controlling the control chamber to analyze the acquired electrothermal signal to obtain a three-phase volume fraction matrix of the first target layer includes the following steps:

[0034] The control chamber acquires the electrical signal data and the thermal signal data of the first target layer;

[0035] Analyzing the electrical signal data by an electrical method to obtain a regional resistance relationship;

[0036] Analyzing the thermal signal data by a thermal method to obtain a temperature change relationship;

[0037] The regional resistance relationship, the temperature change relationship and the constraint conditions are analyzed jointly to obtain a three-phase volume fraction matrix of the first target layer.

[0038] In some embodiments, analyzing the three-phase volume fraction matrix of each target horizon to obtain a fluid flux matrix of the first monitoring area includes the following steps:

[0039] Obtaining the three-phase volume fraction matrix of each target horizon;

[0040] Analyzing the three-phase volume fraction matrix of each target horizon and the volume of each target horizon to obtain a three-phase volume matrix of the first monitoring area;

[0041] Correlation analysis is performed on the three-phase volume matrix and the time period of the first monitoring area to obtain a fluid flux matrix of the first monitoring area.

[0042] In some embodiments, it further includes:

[0043] Controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to slide upward from the lower end simultaneously, traversing each target layer within a time period, and obtaining the three-phase volume fraction matrix of each target layer, until reaching the top of the first sliding rail, the second sliding rail, the third sliding rail, and the fourth sliding rail simultaneously;

[0044] Analyzing the three-phase volume fraction matrix of each target layer to obtain a fluid flux matrix of a second monitoring area;

[0045] The fluid flux matrix of the first monitoring area and the fluid flux matrix of the second monitoring area are correlated to obtain a three-phase three-dimensional dynamic migration process.

[0046] The embodiments of the present application include at least the following beneficial effects: The present application provides a fluid flux sliding monitoring device and method based on electrothermal linkage, which transmits an electrothermal signal through the sliding transmitting unit of the first measuring plate, obtains the transmitted electrothermal signal from the first sliding receiving unit of the first measuring plate and the second sliding receiving unit of the second measuring plate through the control chamber, and calculates the monitoring area layer by layer through the thermoelectric physical field coupling linkage mechanism and constraint conditions, thereby obtaining the solid-liquid-gas three-phase volume fraction matrix of each target layer in the monitoring area, thereby indirectly obtaining the dynamic change process of seabed fluid flux monitoring in the monitoring area, and performs long-term dynamic in-situ monitoring of the seabed based on the fluid flux sliding monitoring device of electrothermal linkage, providing an effective technical means for deep-sea resource development, environmental monitoring and disaster warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Schematic diagram of a fluid flux sliding monitoring device based on electrothermal linkage provided in an embodiment of the present application;

[0048] Figure 2 is a schematic diagram of the first measurement board;

[0049] Figure 3 is a schematic diagram of the second measurement board;

[0050] Figure 4 It is a schematic diagram of the slide launcher;

[0051] Figure 5 is a schematic diagram of a sliding receiver;

[0052] Figure 6 It is a schematic diagram of the accessories of the fluid flux sliding monitoring device based on the electric and thermal linkage;

[0053] Figure 7 Schematic diagram of the extension of the telescopic junction in the fluid flux sliding monitoring device based on electrothermal linkage. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. They are merely examples of devices and methods consistent with some aspects of the embodiments of the present application.

[0055] It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various concepts, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0056] The terms "at least one", "plurality", "each", "any", etc. used in this application include "at least one", "two" or more, "plurality" or "each", "any" or "any one", "each" or "any one" as used herein.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0058] like Figure 1 As shown, Figure 1 The figure is a schematic diagram of a fluid flux sliding monitoring device based on electrothermal linkage provided by an embodiment of the present application, comprising: a connecting plate 100, a first measuring plate 200, a sliding transmitting unit 210, a first sliding receiving unit 220, a second measuring plate 300, a second sliding receiving unit 310, and a control chamber 400. The first measuring plate 200 is disposed on one side of the connecting plate 100, the sliding transmitting unit 210 and the first sliding receiving unit 220 are disposed on the first measuring plate 200, the second measuring plate 300 is disposed on the other side of the connecting plate 100, and the second sliding receiving unit 310 is disposed on the second measuring plate 300. The control chamber 400 is disposed below the connecting plate 100 and is in communication with the sliding transmitting unit 210, the first sliding receiving unit 220, and the second sliding receiving unit 310.

[0059] Specifically, when the fluid flux sliding monitoring device based on electrothermal linkage is in operation, the first measuring plate 200 and the second measuring plate 300 are inserted into the seabed area to be measured, and the sliding transmitting unit 210 is controlled by the control chamber 400 to emit an electrothermal signal. The first sliding receiving unit 220 and the second sliding receiving unit 310 receive the emitted electrothermal signal and transmit the received electrothermal signal to the control chamber 400. The control chamber 400 processes the signal and calculates the solid-liquid-gas three-phase ratio in the monitoring area through the thermoelectric physical field coupling linkage mechanism and constraint conditions, indirectly obtaining the dynamic change process of the fluid flux in the monitoring area, thereby performing long-term dynamic in-situ monitoring of the seabed area. Among them, the sliding transmitting unit 210 is used to transmit the electrothermal signal at the target layer on the fluid flux sliding monitoring device based on electrothermal linkage, and the first sliding receiving unit 220 and the second sliding receiving unit 310 are used to receive the electrothermal signal at the target layer on the fluid flux sliding monitoring device based on electrothermal linkage. Among them, the monitoring area includes a first monitoring area and a second monitoring area. The first monitoring area is represented by the fluid flux sliding monitoring device based on the electric and thermal linkage monitoring from top to bottom, and the second monitoring area is represented by the fluid flux sliding monitoring device based on the electric and thermal linkage monitoring from bottom to top.

[0060] In some embodiments, the sliding launch unit 210 includes a first slide rail 212 and a sliding launcher 211; the first slide rail 212 is disposed on one side of the first measurement plate 200; the sliding launcher 211 is connected to the first slide rail 212. The first sliding receiving unit 220 includes a second slide rail 221 and a first sliding receiver 222; the second slide rail 221 is disposed on one side of the first measurement plate 200; the first sliding receiver 222 is connected to the second slide rail 221.

[0061] Specifically, a first slide rail 212 is provided on the first measurement plate 200, and a sliding transmitter 211 is connected to the first slide rail 212. The sliding transmitter 211 can move up and down along the first slide rail 212, transmitting electrothermal signals within the area of vertical movement. The sliding transmitter 211 can stop at a fixed point to transmit electrothermal signals, thereby enabling precise measurement of any vertical layer. The first slide rail 212 and the sliding transmitter 211 together constitute the sliding transmitter unit 210.

[0062] The first slide receiving unit 220 of the first measurement plate 200 is provided with a second slide rail 221 and a first slide receiver 222. The first slide receiver 222 is movable up and down via the second slide rail 221, and is used to receive the electrothermal signal within the area of the vertical movement. The second slide rail 221 and the first slide receiver 222 together constitute the first slide receiving unit 220.

[0063] like Figure 2 As shown, Figure 2is a schematic diagram of the first measurement board 200, Figure 2 Figure 2 shows a sliding transmitter 211, a first slide rail 212, a first slide receiver 222, and a second slide rail 221 disposed on the first measurement plate 200. The sliding transmitter 211 and the first slide receiver 222 are connected to the first slide rail 212 and the second slide rail 221, respectively. The first slide rail 212 and the second slide rail 221 allow the sliding transmitter 211 and the first slide receiver 222 to move up and down. The sliding transmitter 211 and the first slide receiver 222 can transmit or receive electric heat signals at different heights via the first slide rail 212 and the second slide rail 221.

[0064] like Figure 3 As shown, Figure 3 is a schematic diagram of the second measurement board 300, Figure 3 3 shows a second sliding receiver 311, a third slide rail 312, a third sliding receiver 313, and a fourth slide rail 314 disposed on the second measurement plate 300. The second sliding receiver 311 and the third sliding receiver 313 are connected to the third slide rail 312 and the fourth slide rail 314, respectively. The third slide rail 312 and the fourth slide rail 314 allow the second sliding receiver 311 and the third sliding receiver 313 to move up and down. The second sliding receiver 311 and the third sliding receiver 313 jointly receive the electrothermal signal emitted by the sliding transmitter 211.

[0065] In some embodiments, a second sliding receiving unit 310 is provided on the second measuring plate 300, and the second sliding receiving unit 310 includes a third sliding rail 312, a second sliding receiver 311, a fourth sliding rail 314 and a third sliding receiver 313; the third sliding rail 312 is provided on one side of the second measuring plate 300, the second sliding receiver 311 is connected to the third sliding rail 312, and the fourth sliding rail 314 is provided on the other side of the second measuring plate 300, and the third sliding receiver 313 is connected to the fourth sliding rail 314.

[0066] Specifically, on the second measurement plate 300, third and fourth slide rails 312 and 314 are disposed on either side of the second measurement plate 300. A second sliding receiver 311 and a third sliding receiver 313 are connected to the third and fourth slide rails 312 and 314, respectively. The third and fourth slide rails 312 and 314 allow the second and third sliding receivers 311 and 313 to move vertically. The second and third sliding receivers 311 and 313 are configured to receive electrical heating signals within their vertically movable areas. The third and fourth slide rails 312, 311, 314, and 313 collectively constitute the second sliding receiver unit 310.

[0067] like Figure 4 As shown, Figure 4This is a schematic diagram of the sliding transmitter 211, which includes a first slider 610, a first telescopic knot 620, a sliding resistance heating rod 630, a sliding heat shield 640, and a sliding transmitting electrode 650. The first slider 610 is connected to the first slide rail 212. The sliding resistance heating rod 630 and the sliding transmitting electrode 650 are separated by the sliding heat shield 640. The first telescopic knot 620 can automatically extend or retract a certain distance. When the first telescopic knot 620 extends, the area of the monitoring area of a certain layer being measured can be reduced, thereby enabling measurement of fine areas. One end of the first telescopic knot 620 is connected to the sliding resistance heating rod 630, the sliding heat shield 640, and the sliding transmitting electrode 650, while the other end of the first telescopic knot 620 is connected to the first slider 610.

[0068] In some embodiments, the sliding launcher 211 may include a first slider 610, a sliding resistance heating rod 630, a sliding heat insulation plate 640 and a sliding launch electrode 650. One end of the first slider 610 is connected to the sliding heat insulation plate 640, the sliding resistance heating rod 630 and the sliding launch electrode 650, and the other end of the first slider 610 is connected to the first sliding rail 212. In this embodiment, the sliding launcher 211 is not provided with a first telescopic node 620, and the sliding launcher 211 cannot perform telescopic operations.

[0069] like Figure 5 As shown, Figure 5 This is a schematic diagram of a sliding receiver, which includes a second slider 710, a second expansion joint 720, a sliding temperature sensor 730, and a sliding receiving electrode 740. The second expansion joint 720 can automatically extend or contract a certain distance. When extended, it reduces the area of the monitoring region of a specific layer, thereby enabling measurement of fine areas. One end of the second expansion joint 720 is connected to the sliding temperature sensor 730 and the sliding receiving electrode 740, with the sliding receiving electrode 740 being the negative electrode. The other end of the second expansion joint 720 is connected to the second slider 710. This allows for real-time reception of electrical signals from the positive electrode of the sliding transmitter 211, thereby forming a current path. The first sliding receiver 222, the second sliding receiver 311, and the third sliding receiver 313 are all identically configured sliding receivers.

[0070] In some embodiments, the sliding receiver may include a second slider 710, a sliding temperature sensor 730 and a sliding receiving electrode 740. One end of the second slider 710 is connected to the sliding temperature sensor 730 and the sliding receiving electrode 740, and the other end of the second slider 710 is connected to the sliding rail. In this embodiment, the sliding receiver is not provided with a second telescopic node 720, and the sliding transmitter 211 cannot be telescoped.

[0071] In some embodiments, when the sliding launcher 211 is provided with the first telescopic knot 620, the first sliding receiver 222, the second sliding receiver 311, and the third sliding receiver 313 are also provided with the second telescopic knot 720. When the sliding launcher 211 is not provided with the first telescopic knot 620, the first sliding receiver 222, the second sliding receiver 311, and the third sliding receiver 313 are also not provided with the second telescopic knot 720.

[0072] like Figure 6 As shown, Figure 6 This is a schematic diagram of the accessories of the fluid flux sliding monitoring device based on electrothermal linkage. Figure 6 The fluid flux sliding monitoring device based on electrothermal linkage is provided with a lead block 120 and a lifting ring 110 above the connecting plate 100. The lead block 120 is used to add counterweight when the fluid flux sliding monitoring device based on electrothermal linkage is sunk to the seabed so that it can reach the preset monitoring area. The lifting ring 110 is used to move and lift the fluid flux sliding monitoring device based on electrothermal linkage by connecting the cable connected to the lifting ring 110 to the carrier when the fluid flux sliding monitoring device based on electrothermal linkage is moved and transported. The number of lead blocks 120 can be multiple, in order to solve the problem of providing appropriate counterweight for the fluid flux sliding monitoring device based on electrothermal linkage; the number of lifting rings 110 can be multiple, in order to ensure that the fluid flux sliding monitoring device based on electrothermal linkage is stable during the process of moving and lifting when the carrier carries the fluid flux sliding monitoring device based on electrothermal linkage. Preferably, four lifting rings 110 are provided at the four corners above the connecting plate 100 of the fluid flux sliding monitoring device based on electrothermal linkage. A baffle 800 is provided below the control chamber 400. The baffle 800 is used for inserting the first measuring plate 200 and the second measuring plate 300 below the baffle 800 into the seabed area when the fluid flux sliding monitoring device based on the electrothermal linkage is in operation. The baffle 800 limits the fluid flux sliding monitoring device based on the electrothermal linkage from going any deeper, so that the baffle 800 and structures such as the control chamber 400 above the baffle 800 are above the seabed surface, providing a limit function for the fluid flux sliding monitoring device based on the electrothermal linkage when it is in operation, and also plays a role in protecting the control chamber 400.

[0073] In some embodiments, the control compartment 400 includes a circuit control compartment and a thermal circuit control compartment. The circuit control compartment processes the electrical signal data acquired by the sliding receiving electrode 740, while the thermal circuit control compartment processes the thermal signal data acquired by the sliding temperature sensor 730. The circuit control compartment and the thermal circuit control compartment are positioned below the connecting plate 100 and above the baffle 800. Within this space, the baffle 800 and the connecting plate 100 provide excellent protection for the circuit control compartment and the thermal circuit control compartment. An ammeter is located within the circuit control compartment to measure the current in each current path in real time. The circuit control compartment and the thermal circuit control compartment can receive and process electrical and thermal data, respectively.

[0074] In some embodiments, the first measurement plate 200 and the second measurement plate 300 are symmetrical about the central axis of the connecting plate 100, the first slide rail 212 and the second slide rail 221 are symmetrical about the central axis of the first measurement plate 200, and the third slide rail 312 and the fourth slide rail 314 are symmetrical about the central axis of the second measurement plate 300.

[0075] In some embodiments, the first measurement board 200 and the second measurement board 300 are provided with cavity channels at the positions where the first slide rail 212, the second slide rail 221, the third slide rail 312 and the fourth slide rail 314 are located. The first slide rail 212, the second slide rail 221, the third slide rail 312 and the fourth slide rail 314 are respectively arranged in the corresponding cavity channels, and the mechanical structures of the first slide rail 212, the second slide rail 221, the third slide rail 312 and the fourth slide rail 314 are protected by the cavity channels.

[0076] In some embodiments, the first and second telescopic nodes 620 and 720 are provided with cavities. The sliding resistance heating rod 630, sliding transmitting electrode 650, and sliding heat shield 640 of the sliding transmitter 211 are respectively disposed within the cavities of the first telescopic node 620. The cavities of the first telescopic node 620 protect the sliding resistance heating rod 630, sliding transmitting electrode 650, and sliding heat shield 640. The sliding temperature sensor 730 and sliding receiving electrode 740 of the first sliding receiver 222, second sliding receiver 311, and third sliding receiver 313 are respectively disposed within the cavities of the second telescopic node 720. This protection prevents physical damage to the sliding resistance heating rod 630, sliding transmitting electrode 650, sliding heat shield 640, sliding temperature sensor 730, and sliding receiving electrode 740 from hard objects on the seabed during operation of the electrothermal fluid flux sliding monitoring device.

[0077] In some embodiments, as Figure 7 As shown, Figure 7 This is a schematic diagram of the extension of the telescopic knot in the fluid flux sliding monitoring device based on electrothermal linkage. The cable is connected to the lifting ring 110 by a carrier, and the fluid flux sliding monitoring device based on electrothermal linkage is gradually lowered to the seabed surface. Under the weight of the lead block 120, the fluid flux sliding monitoring device based on electrothermal linkage is gradually inserted into the seabed until the baffle 800 is flush with the seabed surface. The sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 are initially located at the top of the slide rail. At the beginning of the measurement, they slide downward simultaneously and remain on the same horizontal plane in real time. When they reach the first layer, they stop sliding. Start measuring the target layer at the moment. After time The measurement is stopped at the moment, wherein the sliding resistance heating rod 630 in the sliding transmitter 211 is continuously and uniformly heated at the rated power, and a fixed voltage is applied between the sliding transmitting electrode 650 and the sliding receiving electrode 740. According to the thermoelectric physical field coupling linkage mechanism and constraint conditions, it can be calculated The three-phase volume fractions of the target layer in three measurement directions within the time can be obtained, and then the average volume fraction distribution of the three phases in the first layer can be obtained. Then the sliding transmitter 211 and the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 continue to slide down to the second layer and measure the average volume fraction of the three phases in this layer. Similarly, when sliding to the bottom of the slide rail, the fine overall volume fraction distribution of n layers in the vertical direction can be obtained. The time used for the above measurement process is the measurement cycle , then in another measurement cycle The inner sliding transmitter 211 and the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 move from the bottom to the top and measure the fine overall volume fraction during this cycle. The data measured at these two moments can be used to calculate The fluid flux changes over time and the area can be continuously and dynamically monitored during the subsequent measurement period.

[0078] In some embodiments, to facilitate insertion of the electrothermal fluid flux sliding monitoring device into the seabed until baffle 800 is flush with the seabed surface, the lower ends of first and second measurement plates 200 and 300 are designed in a pointed cone shape, with the tips facing downward. When the electrothermal fluid flux sliding monitoring device contacts the seabed, the smaller contact area at the lower ends of first and second measurement plates 200 and 300 causes the weight of lead block 120 to gradually increase the pressure on the seabed surface, facilitating insertion.

[0079] In some embodiments, when the fluid flux sliding monitoring device based on electrothermal linkage detects a sudden change in the overall volume fraction, such as a leakage of a seabed cold spring or when it is desired to measure a finer area of a certain layer, the first telescopic knot 620 and the second telescopic knot 720 of the sliding transmitter 211 and the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 are extended outward to reduce the area of the monitoring area of this layer, thereby achieving fine measurement of a smaller area of any layer.

[0080] In some embodiments, an embodiment of the present application provides another method for fluid flux sliding monitoring based on electrothermal linkage. The method includes the following steps: determining that the fluid flux sliding monitoring device based on electrothermal linkage reaches the seabed surface and gradually inserting the first measuring plate 200 and the second measuring plate 300 into the seabed, controlling the sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 to be located at the top of the first slide rail 212, the second slide rail 221, the third slide rail 312 and the fourth slide rail 314 respectively and enter the initial state; controlling the sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 to slide downward from the top at the same time; determining that the sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 have all reached the first target layer, controlling the sliding transmitter 211 to emit an electrothermal signal, controlling ... The dynamic receiver 313 sends the received electrothermal signal to the control chamber 400; the control chamber 400 is controlled to analyze the obtained electrothermal signal to obtain the three-phase volume fraction matrix of the first target layer; the sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 are controlled to slide downward continuously at the same time and traverse each target layer within a time period until they reach the lower ends of the first sliding rail 212, the second sliding rail 221, the third sliding rail 312 and the fourth sliding rail 314 at the same time; the three-phase volume fraction matrix of the sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 when traversing each target layer is obtained; the three-phase volume fraction matrix of each target layer is analyzed to obtain the fluid flux matrix of the first monitoring area, and the fluid flux matrix is used to characterize the dynamic change process of the fluid flux in the first monitoring area.

[0081] Specifically, before obtaining the three-phase volume fraction distribution, a basic assumption is set: the three-phase composite medium measured by the device is a one-dimensional homogeneous medium, which is composed of a uniform mixture of solid phase (sediment, etc.), liquid phase (seawater, etc.), and gas phase (methane, etc.) (this assumption satisfies the effective medium theory); the average volume fractions of the solid, liquid, and gas phases in the nth layer of the monitoring area are , assuming that the volume fractions in the xth measurement direction of the nth layer (x is 1, 2, 3) are , , , where the length of the nth layer monitoring area is L, the cross-sectional area is A, and the xth measurement direction represents the receiving direction from the sliding transmitter to the first sliding receiver, the second sliding receiver, or the third sliding receiver; let each calculation or measurement time be The time interval between two adjacent measurements is , solid, liquid and gas phases The average volume of the nth layer monitoring area at each moment is 、 、 ; Assume that the nth layer monitoring area transmitting end a (i.e. sliding transmitter 211) and receiving end A fixed voltage U is applied between the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313, wherein x is 1, 2, 3, and the current measured by the series ammeter is The current at the moment is , while The regional resistance in the xth measurement direction at the moment is ; Through experimental calibration, the solid, liquid and gas three-phase conductivity are 、 、 (generally ≈0), assuming that the effective conductivity of the three-phase composite medium is ; Through experimental calibration, the specific heat capacities of solid, liquid and gas are 、 、 , the densities are 、 、 , and the thermal conductivities are 、 、 , assuming the effective specific heat capacity of the three-phase composite medium is , the effective density is , the effective thermal conductivity is , ignoring external heat loss, environmental interference and nonlinear effects.

[0082] The constraint conditions are determined according to the characteristics of the area to be measured. Specifically, the constraint conditions are: in the monitoring area of the nth layer, the volume fractions of the three phases satisfy the quantitative relationship: ; The average volume fraction of the three phases in this layer satisfies the relationship: At the same time, the average volume fraction of the three phases in the xth measurement direction of the nth layer monitoring area satisfies the following formula: .in, represents the volume fraction of solid in the three phases, represents the three-phase volume fraction of the liquid, represents the three-phase volume fraction of the gas.

[0083] Determine the seabed area to be observed and conduct preliminary experiments to calibrate the calculated parameters. Deploy a fluid flux sliding monitoring device based on electrothermal linkage in the seabed boundary layer. Insert the first and second measurement plates 200 and 300 into the seabed. Position the sliding transmitter 211, first sliding receiver 222, second sliding receiver 311, and third sliding receiver 313 at the tops of the first, second, and fourth slide rails 212, 221, and 312, respectively, and enter their initial states. Control the sliding transmitter 211, first, second, and third sliding receivers 222, 311, and 313 to simultaneously slide downward from their tops.

[0084] In some embodiments, the control chamber 400 is controlled to analyze the acquired electric and thermal signals to obtain a three-phase volume fraction matrix of the first target layer, including the following steps: the control chamber obtains the electric signal data and thermal signal data of the first target layer; the electric signal data is analyzed by an electrical method to obtain the regional resistance relationship; the thermal signal data is analyzed by a thermal method to obtain the temperature change relationship; the regional resistance relationship, the temperature change relationship and the constraint conditions are jointly analyzed to obtain the three-phase volume fraction matrix of the first target layer.

[0085] Specifically, upon reaching the first target layer, the electrical circuit control compartment and the thermal circuit control compartment in control compartment 400 respectively receive the electrical signal data and thermal signal data received by the first sliding receiver 222, the second sliding receiver 311, and the third sliding receiver 313. The electrical circuit control compartment processes the electrical signal data, i.e., analyzes it using electrical methods to obtain the regional resistance relationship.

[0086] More specifically, the resistance R of the nth layer changes smoothly. Considering the interaction of the three phases and combining the Bruggeman effective medium theory, the effective conductivity of the three-phase composite medium is and the volume fraction of the three phases in the x-th measurement direction , , Satisfies the relationship:

[0087] ;

[0088] in, represents the volume fraction of the solid in the x-th measuring direction, represents the volume fraction of the liquid in the xth measuring direction, represents the volume fraction of gas in the xth measurement direction, represents the electrical conductivity of the solid, represents the effective conductivity of the three-phase composite medium, represents the conductivity of the liquid, Indicates the electrical conductivity of the gas.

[0089] Since gas is almost non-conductive, ≈0, the above formula can be simplified to:

[0090] ;

[0091] in, represents the volume fraction of the solid in the x-th measuring direction, represents the volume fraction of the liquid in the xth measurement direction, represents the volume fraction of gas in the xth measurement direction, represents the electrical conductivity of the solid, represents the effective conductivity of the three-phase composite medium, represents the conductivity of the liquid, Indicates the electrical conductivity of the gas.

[0092] By solving the above equation, the effective conductivity of the three-phase composite medium can be obtained , and then through the relationship between resistance and conductivity:

[0093] ;

[0094] in, represents the effective conductivity of the three-phase composite medium, L represents the length of the monitoring area, A represents the cross-sectional area of the monitoring area, and R represents the resistance.

[0095] Then the regional resistance in the xth measurement direction is It can be calculated by the following formula:

[0096] ;

[0097] in, represents the distance between the transmitter and receiver of the electrical signal data in the xth measurement direction, then:

[0098] ;

[0099] ;

[0100] in, represents the area resistance in the xth measurement direction, represents the effective conductivity of the three-phase composite medium, represents the cross-sectional area of the monitoring area between the transmitter and the receiver in the xth measurement direction, Indicates the distance between the transmitter and receiver of the electrical signal data in the xth measurement direction.

[0101] ;

[0102] Establishing regional resistance and The functional relationship between It's about , , The function is:

[0103] ;

[0104] in, represents the effective conductivity of the three-phase composite medium, represents the cross-sectional area of the monitoring area between the transmitter and the receiver in the xth measurement direction, Indicates the distance between the transmitting and receiving ends of the electrical signal data in the xth measurement direction.

[0105] Measure the voltage and current method Regional resistance in the xth measurement direction at time ,Right now:

[0106] ;

[0107] in, Indicates the The regional resistance in the xth measurement direction at the moment, U represents the voltage, Indicates the Current at the moment.

[0108] In summary, combining the above two equations, we can get the regional resistance equation:

[0109] .

[0110] The thermal signal data is analyzed by thermal methods to obtain the temperature change relationship. Specifically, similar to the above electrical method, the three-phase composite medium can adopt Bruggeman effective medium theory, and the effective thermal physical parameters can be calculated by the following formulas:

[0111] Effective thermal conductivity:

[0112] ;

[0113] in, represents the effective thermal conductivity, represents the thermal conductivity of the solid, represents the thermal conductivity of the liquid, represents the thermal conductivity of gas.

[0114] Effective specific heat capacity:

[0115] ;

[0116] in, represents the effective specific heat capacity of the three-phase composite medium, represents the specific heat capacity of the solid, represents the specific heat capacity of the liquid, represents the specific heat capacity of gas.

[0117] Effective density:

[0118] ;

[0119] in, represents the effective density of the three-phase composite medium, represents the density of the solid, represents the density of the liquid, Indicates the gas density.

[0120] From the above effective thermal conductivity , effective specific heat capacity , effective density The thermal diffusivity is calculated as:

[0121] ;

[0122] Among them, the thermal diffusivity Indicates the temperature propagation rate.

[0123] The rated power of the sliding resistance heating rod 630 in the monitoring area of the nth layer is P, and it is continuously and uniformly heated. The heat Q generated during this time can be expressed as:

[0124] ;

[0125] The one-dimensional transient heat conduction governing equation is:

[0126] ;

[0127] Wherein, d represents the distance along the heat transfer direction, and the total length of the device from the sliding resistance heating rod 630 to the first sliding receiving unit 220 and the second sliding receiving unit 310 is , then d belongs to ; t represents the heating time of the heat transfer process, Indicates the sign of partial derivative, T represents the temperature at the receiving end, and t represents the time interval.

[0128] By Laplace transform or Green's function method, combined with the heat source conditions, the temperature field distribution along the axial direction of the x-axis is obtained:

[0129] ;

[0130] Where T(d, t) represents the temperature field distribution along the axial direction of the x-axis. represents the initial temperature, A is the cross-sectional area in the heat transfer direction, Q is the heat generated during the heating time, t is the time interval, and d is the distance along the heat transfer direction. Represents a constant.

[0131] From the above formula, we can know that the temperature of the sliding temperature sensor 730 is ,Right now:

[0132] ;

[0133] in, represents the cross-sectional area in the xth measurement direction, Q represents the heat generated during the heating time, and t represents the time interval. represents a constant, Indicates the distance between the transmitting and receiving ends of the electrical signal data in the xth measurement direction.

[0134] Heating Second-rate The time is At this time, the temperature of the sliding resistance heating rod 630 is , the temperature of the sliding temperature sensor 730 is , wherein the sliding resistance heating rod 630 is used a Indicates that the sliding temperature sensor 730 is used Indicates. Then some time ago (heating the m-1th time time), which is At this moment, the temperature of the sliding resistance heating rod 630 is measured to be , the temperature of the sliding temperature sensor 730 is , then the sliding temperature sensor 730 is Temperature changes over time for:

[0135] ;

[0136] Where m represents the number of heating times, represents the receiving end (sliding temperature sensor 730 with serial number x), It indicates the temperature of the sliding temperature sensor 730 with the serial number x when receiving the heating for the m-1th time.

[0137] set up It's about function, then the dependent variable satisfies:

[0138] ;

[0139] In summary, combining the above two equations, we can get the temperature change relationship within the time interval:

[0140] ;

[0141] The regional resistance relationship, temperature change relationship and constraint conditions are analyzed together to obtain the three-phase volume fraction matrix of the first target layer. Specifically, it is known that the nth layer is measured by the voltage and current method. Regional resistance in the xth measurement direction at time , obtained from the heat circuit control warehouse and time End time interval Temperature changes within , combined with the constraints, the above three equations are obtained:

[0142] ;

[0143] in, Represents the formula for the x-th measurement direction in the first monitoring area in the constraint condition, represents the formula obtained by combining electrical methods, This represents the formula obtained by combining thermal methods.

[0144] Thus we get the layer The matrix solution of the volume fraction of solid, liquid and gas phases in the monitoring area in the xth measurement direction at the moment: . Then The average volume fraction of the three phases in the first target layer can be obtained by the following formula:

[0145] .

[0146] In some embodiments, the three-phase volume fraction matrix of each target horizon is analyzed to obtain a fluid flux matrix of the first monitoring area. The method includes the following steps: obtaining the three-phase volume fraction distribution of each target horizon; analyzing the three-phase volume fraction distribution of each target horizon and the volume of each target horizon to obtain a three-phase volume matrix of the first monitoring area; and performing correlation analysis on the three-phase volume matrix of the first monitoring area and a time period to obtain a fluid flux matrix of the first monitoring area.

[0147] Specifically, the above microscopic algorithm can be used to obtain layer The matrix solution of the average volume fraction of the solid, liquid and gas phases in the monitoring area at the moment is: , then in one measurement cycle In the measurement cycle, the sliding transmitter 211 and the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 move from the top to the bottom. The overall volume fraction measured inside the body can be used to obtain a more detailed overall volume fraction distribution:

[0148] ;

[0149] The volume matrix of the monitoring area occupied by the three phases in each layer is , which can be calculated by the following formula:

[0150] ;

[0151] Then the three-phase volume matrix distribution of the first monitoring area is:

[0152] ;

[0153] exist The fluid flux matrix of the first monitoring area within time is:

[0154] .

[0155] In some embodiments, it also includes: controlling the sliding transmitter 211, the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 to slide upward from the lower end at the same time, traversing each target layer within a time period, and obtaining the three-phase volume fraction of each target layer until reaching the top of the first sliding rail 212, the second sliding rail 221, the third sliding rail 312 and the fourth sliding rail 314 at the same time; analyzing the three-phase volume fraction distribution of each target layer to obtain the fluid flux matrix of the second monitoring area; correlating the fluid flux matrix of the first monitoring area with the fluid flux matrix of the second monitoring area to obtain the three-phase three-dimensional dynamic migration process.

[0156] Specifically, in After the fluid flux matrix of the first monitoring area within the time, the measurement cycle is repeated , at this time, the sliding transmitter 211 and the first sliding receiver 222, the second sliding receiver 311 and the third sliding receiver 313 move from the bottom to the top and measure a finer overall volume fraction distribution within this cycle:

[0157] ;

[0158] Similarly, the overall three-phase volume matrix distribution within this period and the fluid flux matrix of the second monitoring area can be obtained, namely:

[0159] ;

[0160] ;

[0161] Among them, the fluid flux matrix of the first monitoring area is represented by the fluid flux matrix obtained by monitoring from top to bottom through the fluid flux sliding monitoring device based on electrothermal linkage, and the fluid flux matrix of the second monitoring area is represented by the fluid flux matrix obtained by monitoring from bottom to top through the fluid flux sliding monitoring device based on electrothermal linkage. When the fluid flux sliding monitoring device based on electrothermal linkage does not move, the difference between the first monitoring area and the second monitoring area is only the difference in the monitoring direction.

[0162] If the measured volume fraction is the volume fraction at the middle moment between the two adjacent measurement cycles, then the fluid flux change matrix of the entire area at these two moments can be calculated:

[0163] ;

[0164] By continuing to measure the overall fluid flux distribution matrix in different periods and different layers and correlating them with each other, the three-dimensional dynamic migration process of solid, liquid and gas phases can be deduced.

[0165] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0166] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0167] Those skilled in the art will appreciate that all or some of the steps in the methods, systems, and functional modules / units in the devices disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof.

[0168] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application 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.

[0169] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0170] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0171] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0172] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. A fluid flux sliding monitoring device based on electric and thermal linkage, characterized in that: include: A connecting plate, with a lead block and a lifting ring provided above the connecting plate, the lead block being used to add counterweight when the fluid flux sliding monitoring device is sunk to the seabed, so that the fluid flux sliding monitoring device reaches a preset monitoring area; the lifting ring being used to lift the fluid flux sliding monitoring device via a cable connection when moving the fluid flux sliding monitoring device; a first measuring plate, the first measuring plate being arranged on one side of the connecting plate; a sliding transmitting unit, the sliding transmitting unit being arranged on the first measuring plate; a first sliding receiving unit, the first sliding receiving unit being provided on the first measuring plate; a second measuring plate, the second measuring plate being arranged on the other side of the connecting plate; a second sliding receiving unit, the second sliding receiving unit being provided on the second measuring plate; A control chamber, comprising a circuit control chamber and a heat circuit control chamber; the control chamber is arranged below the connecting plate, and is in communication with the sliding transmitting unit, the first sliding receiving unit, and the second sliding receiving unit; the control chamber is used to obtain electrical signal data and thermal signal data of the target layer; the electrical signal data is analyzed by an electrical method to obtain a regional resistance relationship; the thermal signal data is analyzed by a thermal method to obtain a temperature change relationship; the regional resistance relationship, the temperature change relationship, and the constraint conditions are jointly analyzed to obtain a three-phase volume fraction matrix of the target layer; the three-phase volume fraction matrix of each target layer and the time period are correlated and analyzed to obtain a fluid flux matrix, which is used to characterize the dynamic change process of the fluid flux; the constraint condition is: in the monitoring area of the nth layer, the three-phase volume fraction satisfies the quantitative relationship: , the average volume fraction of the three phases in this layer satisfies the relationship: , and at the same time, the average volume fraction of the three phases in the xth measurement direction of the nth layer monitoring area satisfies the following formula: ;in, represents the volume fraction of solid in the three phases, represents the three-phase volume fraction of the liquid, represents the three-phase volume fraction of gas; a baffle, disposed below the control compartment, for limiting the first and second measurement plates when inserted into the seabed for operation; the circuit control compartment and the thermal circuit control compartment are disposed between below the connection plate and above the baffle; The sliding transmitting unit is used to transmit an electrothermal signal at a target layer, and the first sliding receiving unit and the second sliding receiving unit are used to receive the electrothermal signal at the target layer.

2. The fluid flux sliding monitoring device based on electric and thermal linkage according to claim 1 is characterized in that: The sliding launch unit includes a first slide rail and a sliding launcher; The first slide rail is arranged on one side of the first measuring plate; The sliding launcher is connected to the first sliding rail.

3. The fluid flux sliding monitoring device based on electric and thermal linkage according to claim 2 is characterized in that: The sliding transmitter includes a first slider, a first telescopic junction, a sliding resistance heating rod, a sliding heat insulation plate and a sliding transmitter electrode. The sliding resistance heating rod and the sliding transmitter electrode are separated by the sliding heat insulation plate. One end of the first telescopic junction is connected to the first slider, and the other end of the first telescopic junction is connected to the sliding heat insulation plate, the sliding resistance heating rod and the sliding transmitter electrode.

4. The fluid flux sliding monitoring device based on electric and thermal linkage according to claim 3 is characterized in that: The first sliding receiving unit includes a second sliding rail and a first sliding receiver; The second slide rail is provided on one side of the first measuring plate, and the first sliding receiver is connected to the second slide rail; The second sliding receiving unit includes a third sliding rail, a second sliding receiver, a fourth sliding rail and a third sliding receiver; The third slide rail is arranged on one side of the second measuring plate, the second sliding receiver is connected to the third slide rail, the fourth slide rail is arranged on the other side of the second measuring plate, and the third sliding receiver is connected to the fourth slide rail.

5. The fluid flux sliding monitoring device based on electric and thermal linkage according to claim 4 is characterized in that: The first sliding receiver, the second sliding receiver and the third sliding receiver each include a second slider, a second telescopic junction, a sliding temperature sensor and a sliding receiving electrode, one end of the second telescopic junction is connected to the second slider, and the other end of the second telescopic junction is connected to the sliding temperature sensor and the sliding receiving electrode.

6. The fluid flux sliding monitoring device based on electric and thermal linkage according to claim 5 is characterized in that: The circuit control compartment is used to process the electrical signal data obtained by the sliding receiving electrode, and the thermal circuit control compartment is used to process the thermal signal data obtained by the sliding temperature sensor.

7. A fluid flux sliding monitoring method based on electric and thermal linkage, characterized in that: The method comprises the following steps: Determining that the fluid flux sliding monitoring device based on electrothermal linkage as described in claim 6 reaches the seabed surface and gradually inserting the first measurement plate and the second measurement plate into the seabed, controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to be located at the top of the first slide rail, the second slide rail, the third slide rail, and the fourth slide rail, respectively, and enter an initial state; controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to slide downward from the top simultaneously; When it is determined that the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver have all reached the first target layer, controlling the sliding transmitter to transmit the electrothermal signal, and controlling the first sliding receiver, the second sliding receiver, and the third sliding receiver to send the received electrothermal signal to the control cabin; Controlling the control chamber to analyze the acquired electrothermal signal to obtain a three-phase volume fraction matrix of the first target layer; Controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to simultaneously continue to slide downward and traverse each of the target layers within a time period until they simultaneously reach the lower ends of the first sliding rail, the second sliding rail, the third sliding rail, and the fourth sliding rail; Acquire the three-phase volume fraction matrix of the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver when traversing each target horizon; The three-phase volume fraction matrix of each target layer is analyzed to obtain a fluid flux matrix of the first monitoring area, and the fluid flux matrix is used to characterize the dynamic change process of the fluid flux in the first monitoring area.

8. The fluid flux sliding monitoring method based on electric and thermal linkage according to claim 7 is characterized in that: The controlling chamber analyzes the acquired electrothermal signal to obtain a three-phase volume fraction matrix of the first target layer, comprising the following steps: The control chamber acquires the electrical signal data and the thermal signal data of the first target layer; Analyzing the electrical signal data by an electrical method to obtain a regional resistance relationship; Analyzing the thermal signal data by a thermal method to obtain a temperature change relationship; The regional resistance relationship, the temperature change relationship and the constraint condition are jointly analyzed to obtain the three-phase volume fraction matrix of the first target layer; the constraint condition is: in the monitoring area of the nth layer, the three-phase volume fraction satisfies the quantitative relationship: , the average volume fraction of the three phases in this layer satisfies the relationship: , and at the same time, the average volume fraction of the three phases in the xth measurement direction of the nth layer monitoring area satisfies the following formula: ;in, represents the volume fraction of solid in the three phases, represents the three-phase volume fraction of the liquid, represents the three-phase volume fraction of the gas.

9. The fluid flux sliding monitoring method based on electric and thermal linkage according to claim 7 is characterized in that: Analyzing the three-phase volume fraction matrix of each target layer to obtain a fluid flux matrix of the first monitoring area includes the following steps: Obtaining the three-phase volume fraction matrix of each target horizon; Analyzing the three-phase volume fraction matrix of each target horizon and the volume of each target horizon to obtain a three-phase volume matrix of the first monitoring area; Correlation analysis is performed on the three-phase volume matrix and the time period of the first monitoring area to obtain a fluid flux matrix of the first monitoring area.

10. The fluid flux sliding monitoring method based on electric and thermal linkage according to claim 7 is characterized in that: Also includes: Controlling the sliding transmitter, the first sliding receiver, the second sliding receiver, and the third sliding receiver to slide upward from the lower end simultaneously, traversing each target layer within a time period, and obtaining the three-phase volume fraction matrix of each target layer, until reaching the top of the first sliding rail, the second sliding rail, the third sliding rail, and the fourth sliding rail simultaneously; Analyzing the three-phase volume fraction matrix of each target layer to obtain a fluid flux matrix of a second monitoring area; The fluid flux matrix of the first monitoring area and the fluid flux matrix of the second monitoring area are correlated to obtain a three-phase three-dimensional dynamic migration process.

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