Fluid chip catching control method and system

Abstract

The invention relates to the technical field of fluid treatment, in particular to a fluid chip catching control method and system which are applied to a chip catching electric control device, the device comprises a plurality of fluid channels connected in series, the fluid channels comprise first electric gate valves, at least one fluid channel is connected with a chip catching channel in parallel, and the chip catching channel comprises a plurality of second electric gate valves connected in series. And a scrap catching cylinder is arranged among the plurality of second electric gate valves. The scrap catching electric control device is arranged between a ground flow high-pressure manifold and a gas production wellhead. During application, the opening and closing strategy of the fluid channel and the scrap catching channel can be remotely and automatically controlled, timing is started based on the switching closing state in the opening and closing strategy execution process, and after timing meets the condition, electric gate valves in the scrap catching channel and the fluid channel needing to be opened are sequentially opened; the flowing of high-pressure fluid is more stable and linearly controllable, and the loss risk of the valve body is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid treatment, in particular to a fluid debris trapping control method and system. BACKGROUND

[0002] In the field of oil and gas exploitation, the fluid conveying link between the ground process high-pressure manifold and the gas wellhead is the core link to ensure the continuous and efficient development of gas production operation. During the conveying process of oil and gas fluid, solid impurities such as debris, cuttings and perforating residues are inevitably mixed. If such impurities directly enter the subsequent high-pressure manifold system, it is easy to cause pipeline blockage, gate valve sealing surface wear, equipment failure rate increase and other problems, and in severe cases, it can also cause the interruption of gas production operation, greatly increasing the on-site operation and maintenance cost and safety control pressure. Therefore, efficient solid impurity trapping of the output fluid of the gas wellhead to achieve solid-liquid separation is a key technical requirement to ensure the stable operation of the ground process of oil and gas exploitation.

[0003] Especially critical is that the fluid under the working condition of oil and gas exploitation is mostly high pressure. During the switching process of the debris trapping channel and the main fluid channel, the opening and closing timing of the gate valve directly affects the stability of the fluid pressure. If the gate valve is opened and closed synchronously, the high-pressure fluid is easy to appear instantaneous pressure fluctuation, backflow and other phenomena, which not only causes strong impact on the sealing structure of the gate valve, accelerates the wear of the valve body, but also may cause safety hazards such as pipeline vibration and connection loose, which seriously threatens the long-term stable operation of the equipment. Therefore, through reasonable design of the opening and closing timing of the gate valve, the high-pressure fluid impact is buffered and fluid backflow is avoided, which is the core technical point to improve the reliability of the debris trapping control device.

[0004] At present, there are still technical bottlenecks to be broken through in the industry for the solid impurity trapping and channel switching control of high-pressure fluid. How to design a scientific gate valve start-stop sequence control logic on the basis of efficient debris trapping and guaranteeing the solid-liquid separation effect, effectively buffer the high-pressure fluid impact, avoid the risk of pressure fluctuation and fluid backflow, and adapt to the demand of remote automatic control, has become a core technical problem that must be solved to promote the upgrading of ground process equipment of oil and gas exploitation and realize safe and efficient operation. SUMMARY

[0005] Therefore, the present application provides a fluid debris trapping control method and system, which can realize efficient debris trapping, guarantee the solid-liquid separation effect, design a scientific gate valve start-stop sequence control logic, effectively buffer the high-pressure fluid impact, avoid the risk of pressure fluctuation and fluid backflow, and adapt to the demand of remote automatic control.

[0006] In a first aspect, the application provides a fluid debris control method, applied to a debris control electric control device, the device comprising a plurality of fluid channels connected in series, the fluid channels comprising first electrically operated valves, at least one of the fluid channels being connected in parallel with a debris collection channel, the debris collection channel comprising a plurality of second electrically operated valves connected in series, and a debris collection cylinder being arranged between the plurality of second electrically operated valves; wherein the method comprises: obtaining a process instruction and calling a corresponding fluid control strategy; controlling the fluid channels and the debris collection channels to switch between open and closed states according to the fluid control strategy; if a certain fluid channel switches from an open state to a closed state, controlling the first electrically operated valve in the fluid channel to close, and controlling all second electrically operated valves in the debris collection channels other than the debris collection channel connected in parallel with the fluid channel to close, and starting timing; if the timing accumulates to a first preset time length, controlling all second electrically operated valves in the debris collection channel connected in parallel with the fluid channel switched to the closed state to be opened in turn at a first preset interval, and controlling all first electrically operated valves in other fluid channels to be opened in turn at the first preset interval; if the debris collection channel is put into operation, obtaining the clogging condition of the corresponding debris collection cylinder; if the debris collection cylinder is in a clogging working condition, sending a pre-warning signal; and if a switching signal is obtained, closing the debris collection channel corresponding to the clogging working condition debris collection cylinder, and opening the fluid channel connected in parallel with the debris collection channel.

[0007] In combination with the first aspect, in a possible implementation manner, the device comprises a first fluid channel and a second fluid channel connected in series, first flanges arranged at both ends of the first fluid channel are connected in parallel with a first debris collection channel, and first flanges arranged at both ends of the second fluid channel are connected in parallel with a second debris collection channel; the obtaining a process instruction and calling a corresponding fluid control strategy comprises: obtaining a first process instruction and calling a corresponding first strategy; the controlling the fluid channels and the debris collection channels to switch between open and closed states according to the fluid control strategy comprises: according to the first strategy, controlling the first fluid channel to close, the first debris collection channel to open, the second fluid channel to open, and the second debris collection channel to close, or controlling the first fluid channel to open, the first debris collection channel to close, the second fluid channel to close, and the second debris collection channel to open; wherein fluid passes through the first debris collection channel and the second fluid channel in turn, or fluid passes through the first fluid channel and the second debris collection channel in turn.

[0008] With reference to the first aspect, in a possible implementation manner, when the first fluid channel is controlled to be closed, the first chip collecting channel is controlled to be opened, the second fluid channel is controlled to be opened, and the second chip collecting channel is controlled to be closed according to the first strategy, and when a certain fluid channel is switched from an opened state to a closed state, the first electric gate valve in the fluid channel is controlled to be closed, all the second electric gate valves in other chip collecting channels outside the chip collecting channel in parallel with the fluid channel are controlled to be closed, and timing is started, including: the first electric gate valve in the first fluid channel is controlled to be closed, and all the second electric gate valves in the second chip collecting channel are controlled to be closed; if a closed-to-position feedback signal of the closed first electric gate valve and the closed second electric gate valve is acquired, timing is started; if the timing accumulates to a first preset time length, all the second electric gate valves in the chip collecting channel in parallel with the closed fluid channel are controlled to be opened in a first preset interval time length along a fluid conveying direction, and all the first electric gate valves in other fluid channels are controlled to be opened in the first preset interval time length, including: if the timing accumulates to the first preset time length, all the second electric gate valves in the first chip collecting channel are controlled to be opened in the first preset interval time length along the fluid conveying direction, and all the first electric gate valves in the second fluid channel are controlled to be opened in the first preset interval time length; and the method further includes: if an opened-to-position feedback signal of the opened second electric gate valve and the opened first electric gate valve is acquired, fluid is controlled to enter the chip collecting electric control device.

[0009] With reference to the first aspect, in a possible implementation manner, when according to the first strategy, the first fluid passage is controlled to be opened, the first chip removal passage is controlled to be closed, the second fluid passage is controlled to be closed, and the second chip removal passage is controlled to be opened, if a certain fluid passage is switched from an opened state to a closed state, the method further includes: controlling the first electrically-driven gate valve in the fluid passage to be closed, and controlling all the second electrically-driven gate valves in other chip removal passages outside the chip removal passage in parallel with the fluid passage to be closed, and starting timing, including: controlling the first electrically-driven gate valve in the second fluid passage to be closed, and controlling all the second electrically-driven gate valves in the first chip removal passage to be closed; if a closed-to-position feedback signal of the closed first electrically-driven gate valve and the closed second electrically-driven gate valve is acquired, timing is started; if the timing accumulates to a first preset time length, all the second electrically-driven gate valves in the chip removal passage in parallel with the closed fluid passage are controlled to be opened in a first preset interval time length in a fluid conveying direction, and all the first electrically-driven gate valves in other fluid passages are controlled to be opened in a first preset interval time length, including: if the timing accumulates to a second preset time length, all the first electrically-driven gate valves in the first fluid passage are controlled to be opened in a second preset interval time length in the fluid conveying direction, and all the second electrically-driven gate valves in the second chip removal passage are controlled to be opened in a second preset interval time length; and the method further includes: if an open-to-position feedback signal of the opened first electrically-driven gate valve and the opened second electrically-driven gate valve is acquired, fluid is controlled to enter the chip removal electrically-driven control device.

[0010] With reference to the first aspect, in a possible implementation manner, the device includes the first fluid passage and the second fluid passage connected in series, the first flange arranged at two ends of the first fluid passage is provided with the first chip removal passage in parallel, and the first flange arranged at two ends of the second fluid passage is provided with the second chip removal passage in parallel; the acquiring of the process instruction and the calling of the corresponding fluid control strategy include: the acquiring of the second process instruction and the calling of the corresponding second strategy; and the controlling of the fluid passage and the chip removal passage to switch the opened and closed states according to the fluid control strategy includes: the controlling of the first fluid passage to be opened, the first chip removal passage to be closed, the second fluid passage to be opened, and the second chip removal passage to be closed according to the second strategy; and fluid passes through the first fluid passage and the second fluid passage in sequence.

[0011] With reference to the first aspect, in a possible implementation manner, two pressure relief electrically-driven cocks are respectively arranged at the second flanges arranged at two ends of the chip removal cylinder; and the method further includes: if a pressure relief instruction is acquired, a pressure relief process is started; the pressure relief electrically-driven cock is controlled to be opened at a preset opening degree, or the pressure relief electrically-driven cock is controlled to be opened at a gradually increasing opening degree; and if the chip removal cylinder is relieved to a preset pressure, a pressure relief completion signal is sent.

[0012] With reference to the first aspect, in a possible implementation manner, the method further includes: generating a maintenance signal if the pressure relief completion signal is acquired; and generating a standby instruction corresponding to the chip collecting cylinder if a maintenance completion signal is acquired.

[0013] With reference to the first aspect, in a possible implementation manner, the method further includes: collecting working condition data of the first electric gate valve, the second electric gate valve, and the chip collecting cylinder, and sending the working condition data to a remote control cabinet and / or a mobile phone terminal; and acquiring the process instruction sent by the remote control cabinet and / or the mobile phone terminal.

[0014] The second aspect provides a fluid chip collecting control system applied to a chip collecting electric control device. The device includes a plurality of fluid channels connected in series. The fluid channels include first electric gate valves. At least one of the fluid channels is connected in parallel with a chip collecting channel. The chip collecting channel includes a plurality of second electric gate valves connected in series. A chip collecting cylinder is arranged between the plurality of second electric gate valves. The system includes: a data processing module configured to acquire a process instruction and call a corresponding fluid control strategy; a fluid control module in communication connection with the data processing module. The fluid control module is configured to control switching of the fluid channels and the chip collecting channel between open and closed states according to the fluid control strategy; and a monitoring module in communication connection with the fluid control module. The monitoring module is configured to: if a fluid channel is switched from an open state to a closed state, control the first electric gate valve in the fluid channel to be closed, control all second electric gate valves in other chip collecting channels outside the chip collecting channel connected in parallel with the fluid channel to be closed, and start timing; if the chip collecting channel is put into work, acquire a blockage condition of the corresponding chip collecting cylinder; if the chip collecting cylinder is in a blockage working condition, send a warning signal; and the fluid control module is further configured to: if the timing accumulates to a first preset time length, control all second electric gate valves in the chip collecting channel connected in parallel with the fluid channel switched to a closed state to be opened in a first preset interval time length in sequence along a fluid conveying direction, and control all first electric gate valves in other fluid channels to be opened in a first preset interval time length in sequence; if a switching signal is acquired, close the chip collecting channel corresponding to the chip collecting cylinder in the blockage working condition, and open the fluid channel connected in parallel with the chip collecting channel.

[0015] In a possible implementation manner of the second aspect, the data processing module comprises a mobile terminal, a wireless communication transmitter, a smart gateway, a switch and a processor which are electrically connected to each other; the monitoring module comprises a plurality of pressure transmitters, at least one of the first electrically operated gate valves is provided with a pressure transmitter, at least one of the second electrically operated gate valves is provided with a pressure transmitter, and the second flanges at both ends of the chip catcher are provided with pressure transmitters; a first communication device is in communication connection with each pressure transmitter; a second communication device is in electrical connection with each first electrically operated gate valve and each second electrically operated gate valve respectively; and a bus is in electrical connection with the processor, the first communication device and the second communication device respectively; and the fluid control module comprises an electric control cabinet which is in electrical connection with each first electrically operated gate valve and each second electrically operated gate valve respectively, and the electric control cabinet is further in communication connection with the processor.

[0016] In the present application, the working condition of the chip catcher can be automatically acquired, and if the chip catcher is blocked, the chip catcher channel where the chip catcher is located is automatically closed and the fluid channel connected in parallel with the chip catcher channel is automatically opened, so that the fluid can continue to be transported. After confirming that the feedback signal of the electrically operated gate valve being closed is acquired, it is confirmed that the first electrically operated gate valve and the second electrically operated gate valve which need to be closed are indeed in the closed state. Taking the acquired feedback signal as a timing reference point, the timing is started to accumulate to the first preset time length, and then all the second electrically operated gate valves in the opened chip catcher channel and all the first electrically operated gate valves in the opened fluid channel are opened in sequence along the fluid conveying direction. The first preset time length can make the pressure of each device reach a stable state, and then the gate valve opening operation is performed after the stable state is reached, so as to avoid the impact damage to the device caused by unstable pressure. The sequentially opened execution actions can avoid the backflow of the fluid in the opposite direction of the conveying direction. After the gate valves which need to be opened are opened in sequence, the high-pressure fluid enters the chip catcher electric control device to perform the chip catching work. The opening and closing strategy of the fluid channel and the chip catcher channel can be remotely and automatically controlled, the timing is started based on the switching of the closed state during the execution of the opening and closing strategy, and then the electrically operated gate valves in the chip catcher channel and the fluid channel which need to be opened are opened in sequence after the timing meets the condition, so that the flow of the high-pressure fluid is more stable, linearly controllable, and the risk of valve body wear is reduced. The overall process can effectively suppress the instantaneous pressure fluctuation and backflow of the high-pressure fluid, avoid strong impact on the sealing structure of the gate valve, reduce the safety hidden dangers such as valve body wear, pipeline vibration and connection loosening, effectively improve the long-term stability and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 shows a schematic diagram of the method steps of a fluid chip catcher control method provided by an embodiment of the present application;

[0018] Figure 2Fig. 1 shows a structural schematic diagram of a debris capturing electric control device according to an embodiment of the present application;

[0019] Figure 3 Fig. 2 shows a specific step schematic diagram of the first strategy;

[0020] Figure 4 Fig. 3 shows a step schematic diagram of an execution flow of the first strategy;

[0021] Figure 5 Fig. 4 shows another step schematic diagram of an execution flow of the first strategy;

[0022] Figure 6 Fig. 5 shows a specific step schematic diagram of the second strategy;

[0023] Figure 7 Fig. 6 shows a step schematic diagram of a pressure relief process;

[0024] Figure 8 Fig. 7 shows a maintenance flow schematic diagram;

[0025] Figure 9 Fig. 8 shows a specific step schematic diagram of remote control;

[0026] Figure 10 Fig. 9 shows a structural schematic diagram of a fluid debris capturing control system;

[0027] Figure 11 Fig. 10 shows a structural schematic diagram of a system according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present application.

[0029] An exemplary fluid debris capturing control method is as follows:

[0030] Figure 1 Fig. 11 shows a step schematic diagram of a fluid debris capturing control method according to an embodiment of the present application. Figure 2 Fig. 1 shows a structural schematic diagram of a debris capturing electric control device according to an embodiment of the present application. The present application provides a fluid debris capturing control method, which is applied to a debris capturing electric control device, and the details are described with reference to Figure 2The debris-catching electric control device comprises a plurality of fluid channels connected in series, the fluid channels comprising first electric gate valves 102, at least one fluid channel being connected in parallel with a debris-catching channel, the debris-catching channel comprising a plurality of second electric gate valves 301 connected in series, and a debris-catching cylinder 302 being arranged between the plurality of second electric gate valves. The debris-catching electric control device is arranged between a surface flow high-pressure manifold and a gas production wellhead, an inlet of a first fluid channel in a conveying direction is connected with a subsurface pipeline of the gas production well, and an outlet of a last fluid channel in the conveying direction is connected with the surface flow high-pressure manifold. In an embodiment, as shown in Figure 1 The fluid debris-catching control method comprises the following steps:

[0031] In step 110, a process instruction is obtained and a corresponding fluid control strategy is called.

[0032] In this step, the process instruction can be issued by a remote mobile phone terminal or a remote control cabinet to control the debris-catching electric control device to adjust the process flow required for the current production. Different process instructions correspond to different fluid control strategies, and the correspondence between the process instructions and the fluid control strategies is preset.

[0033] In step 120, the fluid channels and the debris-catching channels are switched to open or closed states according to the fluid control strategy.

[0034] In this step, different fluid control strategies correspond to whether a certain fluid channel is open or closed, and whether a certain debris-catching channel is open or closed.

[0035] In step 130, if a certain fluid channel is switched from an open state to a closed state, the first electric gate valve 102 in the fluid channel is controlled to be closed, all the second electric gate valves 301 in the other debris-catching channels outside the debris-catching channel connected in parallel with the fluid channel are controlled to be closed, and timing is started.

[0036] In this step, when fluid passes through the debris-catching channel, the second electric gate valve 301 in the debris-catching channel and various sensors in the debris-catching cylinder 302 can detect that fluid is passing through, which indicates that the debris-catching cylinder 302 is put into operation, and the debris-catching cylinder 302 filters the fluid. The filter cartridge in the debris-catching cylinder 302 intercepts the solid-phase materials such as debris, rock cuttings, and perforating residues mixed in the fluid, and the filtered fluid flows out through the filter holes. The solid-phase materials are blocked inside the debris-catching cylinder 302, thereby realizing the separation of solids and fluids, avoiding the large amount of solid-phase materials from entering the subsequent process, and effectively preventing the subsequent channels from being blocked and the electric gate valves from being excessively worn.

[0037] Step 140, if the time counting reaches the first preset time length, then open all the second electric gate valves 301 in the chip catching channel connected in parallel with the fluid channel switched to the closed state in the fluid conveying direction with the first preset interval time length, and open all the first electric gate valves 102 in the other fluid channels with the first preset interval time length.

[0038] In steps 130 and 140, when a certain fluid channel is switched to the closed state, the chip catching channel connected in parallel therewith is switched to the open state, and the other fluid channels connected in series therewith are switched to the open state, and the chip catching channel connected in parallel with the fluid channel switched to the open state is switched to the closed state. When the closed-to-place feedback signal is confirmed to be acquired, it is confirmed that the first electric gate valve 102 and the second electric gate valve 301 needing to be switched to the closed state are indeed in the closed state, and then the time counting reaches the first preset time length and the all the second electric gate valves 301 in the chip catching channel switched to the open state and all the first electric gate valves 102 in the fluid channel switched to the open state are opened in sequence in the fluid conveying direction. The interval of the first preset time length can make the pressure of each device reach a stable state, and then the gate valve opening work is performed, which can effectively avoid damage to the device caused by unstable pressure; the execution action of opening in sequence can avoid backflow of the fluid in the reverse direction of the conveying direction; after the gate valves needing to be opened are opened in sequence, the high-pressure fluid enters the chip catching electric control device to perform the chip catching work.

[0039] Step 150, if the chip catching channel is put into work, the plugging condition of the corresponding chip catching cylinder is acquired.

[0040] In steps 140 and 150, when the chip catching channel is put into work, the pressure difference between the two ends of the chip catching cylinder 302 can be obtained through the pressure transmitters arranged at the two ends of the chip catching cylinder 302, and if the pressure difference is greater than the preset pressure difference, it can be determined that the chip catching cylinder 302 is in the plugging working condition.

[0041] Step 160, if the chip catching cylinder is in the plugging working condition, a pre-warning signal is sent.

[0042] Step 170, if the switching signal is acquired, the chip catching channel corresponding to the chip catching cylinder in the plugging working condition is closed, and the fluid channel connected in parallel with the chip catching channel is opened.

[0043] In step 170, after the blocked chip catching channel is closed and the fluid channel connected in parallel therewith is opened, the fluid can enter the next process for conveying.

[0044] In this embodiment, the working condition of the chip collecting cylinder 302 can be automatically obtained, and if the chip collecting cylinder 302 is blocked, the chip collecting channel where the chip collecting cylinder 302 is located is automatically closed, and the fluid channel connected in parallel with the chip collecting channel is automatically opened, so that the fluid can continue to be transported. After confirming that the feedback signal of the electric gate valve being closed in place is obtained, it is confirmed that the first electric gate valve 102 and the second electric gate valve 301 that need to be closed are indeed in the closed state. Taking the in-place feedback signal as a timing reference point, the timing is started to accumulate to the first preset time length, and then all the second electric gate valves 301 in the chip collecting channel corresponding to the fluid channel switched to the closed state and all the first electric gate valves 102 in the fluid channel switched to the open state are opened in turn in the fluid conveying direction. The interval of the first preset time length can make the pressure of each device reach a stable state, and then the gate valve opening work is performed, so as to avoid the impact damage caused by unstable pressure to the device; the execution action of opening in turn can avoid the backflow of the fluid in the opposite direction of the conveying direction. After the gate valves that need to be opened are opened in turn, the high-pressure fluid enters the chip collecting electric control device to perform the chip collecting work. In the application of this embodiment, the opening and closing strategy of the fluid channel and the chip collecting channel can be automatically controlled remotely, and the timing is started based on the switching to the closed state during the execution of the opening and closing strategy. After the timing meets the condition, the electric gate valves in the fluid channel and the chip collecting channel that need to be opened are opened in turn, so that the flow of the high-pressure fluid is more stable and linearly controllable, and the risk of valve body loss is reduced. The overall process can effectively suppress the instantaneous pressure fluctuation and backflow of the high-pressure fluid, avoid strong impact on the sealing structure of the gate valve, reduce the safety hidden dangers such as valve body loss, pipeline vibration, and connection loosening, effectively improve the long-term stability and reliability of the equipment.

[0045] Referring to Figure 2 , the device comprises a first fluid channel 1 and a second fluid channel 2 connected in series, a first chip collecting channel 3 is connected in parallel on two first flanges 101 at the end of the first fluid channel 1, and a second chip collecting channel 4 is connected in parallel on two first flanges 101 at the end of the second fluid channel 2, Figure 2 The first fluid channel 1, the second fluid channel 2, the first chip collecting channel 3, and the second chip collecting channel 4 are circled by a dashed line in the figure.

[0046] Specifically, the first fluid passage 1 is provided with first flanges 101 at both ends, one of which is connected with the underground fluid conveying pipe, and the other is connected with one of the first flanges 101 at the end of the second fluid passage 2. The first electric gate valve 102 is connected in series between the first flanges 101 at both ends of the first fluid passage 1, and the first electric gate valve 102 is connected in series between the first flanges 101 at both ends of the second fluid passage 2. The first chip removal passage 3 includes second electric gate valves 301 connected in series, a chip removal cylinder 302, and second electric gate valves 301 connected in series, and the second electric gate valves 301 at both ends of the first chip removal passage 3 are connected with the first flanges 101 at both ends of the first fluid passage 1. The second chip removal passage 4 includes second electric gate valves 301 connected in series, a chip removal cylinder 302, and second electric gate valves 301 connected in series, and the second electric gate valves 301 at both ends of the second chip removal passage 4 are connected with the first flanges 101 at both ends of the second fluid passage 2. The high-pressure fluid in the well is input from the first flange 101 below the first fluid passage 1, and finally output from the first flange 101 above the second fluid passage 2.

[0047] Figure 3 The specific steps of the first strategy are shown. In an embodiment, as shown in Figure 3 Step 110 includes:

[0048] Step 111, obtaining the first process instruction calls the corresponding first strategy.

[0049] Step 120 includes:

[0050] Step 121, according to the first strategy, control the first fluid passage 1 to be closed, the first chip removal passage 3 to be opened, the second fluid passage 2 to be opened, and the second chip removal passage 4 to be closed, or control the first fluid passage 1 to be opened, the first chip removal passage 3 to be closed, the second fluid passage 2 to be closed, and the second chip removal passage 4 to be opened.

[0051] In this embodiment, the fluid passes through the first chip removal passage 3 and the second fluid passage 2 in sequence, or the fluid passes through the first fluid passage 1 and the second chip removal passage 4 in sequence.

[0052] Figure 4 The specific steps of the first strategy are shown. In an embodiment, as shown in Figure 4 Step 120 includes:

[0053] Step 1211, according to the first strategy, control the first fluid passage 1 to be closed, the first chip removal passage 3 to be opened, the second fluid passage 2 to be opened, and the second chip removal passage 4 to be closed.

[0054] Step 130 includes:

[0055] Step 1311, control the first electric gate valve 102 in the first fluid channel 1 to close, control all the second electric gate valves 301 in the second chip removal channel 4 to close; if the closed-to-position feedback signal of the closed first electric gate valve 102 and the closed second electric gate valve 301 is obtained, start timing.

[0056] Step 140 includes:

[0057] Step 1411, if the timing accumulates to the first preset time length, control all the second electric gate valves 301 in the first chip removal channel 3 to be opened in turn with the first preset interval time length in the fluid conveying direction, and control the first electric gate valve 102 in the second fluid channel 2 to be opened in turn with the first preset interval time length.

[0058] Wherein, the fluid chip removal control method further includes:

[0059] Step 1500, if the open-to-position feedback signal of the opened second electric gate valve 301 and the opened first electric gate valve 102 is obtained, control the fluid to enter the chip removal electric control device.

[0060] In this embodiment, after step 1211, the closed-to-position feedback signal is confirmed to be obtained, which indicates that the first electric gate valve 102 and the second electric gate valve 301 that need to be closed are indeed in the closed state. Then the timing accumulates to the first preset time length before the gate valves in the first chip removal channel 3 and the second fluid channel 2 are opened in turn, and the interval of the first preset time length can make the pressure of each device reach a stable state. After the stable state, the gate valve opening work is performed, so as to avoid damage to the device caused by unstable pressure. The execution action of opening in turn can avoid the backflow of the fluid in the opposite direction of the conveying direction. After the gate valves that need to be opened are opened in turn, the first flange 101 at the end of the first fluid channel 1 is opened to make the high-pressure fluid enter the chip removal electric control device, and the chip removal work is performed through the first chip removal channel 3.

[0061] Figure 5 Another execution flow step schematic diagram under the first strategy is shown. Based on step 121, step 120 includes: Figure 5 As shown, step 120 includes:

[0062] Step 1212, according to the first strategy, control the first fluid channel 1 to be opened, the first chip removal channel 3 to be closed, the second fluid channel 2 to be closed, and the second chip removal channel 4 to be opened.

[0063] Step 130 includes:

[0064] Step 1312, control the first electric gate valve 102 in the second fluid channel 2 to close, control all the second electric gate valves 301 in the first debris capturing channel 3 to close; if the closed-to-position feedback signal of the closed first electric gate valve 102 and the closed second electric gate valve 301 is obtained, start timing.

[0065] Step 140 includes:

[0066] Step 1412, if the timing accumulates to the second preset time length, control the first electric gate valve 102 in the first fluid channel 1 to open in sequence at the second preset interval time length in the fluid conveying direction, control all the second electric gate valves 301 in the second debris capturing channel 4 to open in sequence at the second preset interval time length.

[0067] Wherein, the fluid debris capturing control method further includes:

[0068] Step 1501, if the open-to-position feedback signal of the opened first electric gate valve 102 and the opened second electric gate valve 301 is obtained, control the fluid to enter the debris capturing electric control device.

[0069] In the embodiment, after step 1221, if the closed-to-position feedback signal is obtained, it indicates that the first electric gate valve 102 and the second electric gate valve 301 which need to be closed are indeed in the closed state. Then the timing accumulates to the second preset time length and then the gate valves in the first fluid channel 1 and the second debris capturing channel 4 are opened in sequence, and the interval of the second preset time length can make the pressure of each device reach a stable state. After the stable state, the gate valve opening work is performed to avoid damage to the device caused by unstable pressure. The execution action of opening in sequence can avoid the backflow of the fluid in the opposite direction of the conveying direction. After the gate valves which need to be opened are opened in sequence, the first flange 101 at the end of the first fluid channel 1 is opened to make the high-pressure fluid enter the debris capturing electric control device and perform the debris capturing work through the second debris capturing channel 4.

[0070] The above process flow uses at least one debris capturing cylinder 302 to perform fluid debris capturing, which can be directly set to perform which process through the remote control cabinet and / or mobile phone terminal; or when one debris capturing cylinder 302 appears a blocking working condition, the switching work is performed to switch the debris capturing work to other debris capturing channels to perform debris capturing. The first preset time length and the second preset time length are generally set to any value in 2S~5S, and the first preset interval time length and the second preset interval time length are generally set to any value in 1S~4S.

[0071] Figure 6 The second strategy is shown in the specific step diagram. In an embodiment, referring to Figure 2The device comprises a first fluid channel 1 and a second fluid channel 2 connected in series, and a first chip catching channel 3 and a second chip catching channel 4 are arranged in parallel on the first flange 101 at both ends of the first fluid channel 1 and the second fluid channel 2 respectively. As shown in Figure 6 Step 110 comprises:

[0072] Step 112, obtaining the second process instruction calls the corresponding second strategy.

[0073] Step 120 comprises:

[0074] Step 122, according to the second strategy, the first fluid channel 1 is opened, the first chip catching channel 3 is closed, the second fluid channel 2 is opened, and the second chip catching channel 4 is closed.

[0075] In this step, the fluid passes through the first fluid channel 1 and the second fluid channel 2 in turn, which can be applied to the fluid conveying with less impurities, and can improve the fluid passing efficiency.

[0076] In some embodiments, three options are pre-set on the remote control cabinet and / or mobile phone terminal, which correspond to: A type production process: control the first fluid channel 1 to be closed, the first chip catching channel 3 to be opened, the second fluid channel 2 to be opened, and the second chip catching channel 4 to be closed; B type production process: control the first fluid channel 1 to be opened, the first chip catching channel 3 to be closed, the second fluid channel 2 to be closed, and the second chip catching channel 4 to be opened; C type production process: control the first fluid channel 1 to be opened, the first chip catching channel 3 to be closed, the second fluid channel 2 to be opened, and the second chip catching channel 4 to be closed.

[0077] Figure 7 As shown in the schematic diagram of the method steps of the pressure relief process. In an embodiment, referring to Figure 2 Two pressure relief electric cocks 304 are arranged at the second flange 303 at both ends of the chip catching cylinder 302 respectively. As shown in Figure 7 After step 150 and step 160, the method further comprises:

[0078] Step 190, judge whether the pressure relief instruction is obtained, if yes, execute step 200, start the pressure relief process.

[0079] When a certain chip catching cylinder 302 is in a blocked working condition, the chip catching cylinder 302 needs to be cleaned or the filter element of the chip catching cylinder 302 needs to be replaced, then the chip catching cylinder 302 is relieved.

[0080] After step 200, step 210 or step 220 is executed.

[0081] Step 210, control the pressure relief electric cock 304 to open at a preset opening degree.

[0082] In this step, the pressure in the debris collection cylinder 302 can be slowly released according to a preset proportional opening to avoid damage to the debris collection cylinder 302 caused by too fast pressure release. The preset proportional opening can be set on the remote control cabinet or the remote mobile phone terminal.

[0083] Step 220, control the pressure relief electric cock 304 to open at a gradually increasing proportional opening.

[0084] In this step, the pressure in the debris collection cylinder 302 can be slowly released according to a gradually increasing proportional opening, which can be released at a small opening in the early high pressure period, and the proportional opening can be gradually increased after a certain pressure is released, so as to avoid damage to the debris collection cylinder 302 caused by too fast pressure release. The increasing range of the proportional opening can be set on the remote control cabinet or the remote mobile phone terminal.

[0085] Step 230, judge whether the debris collection cylinder 302 is relieved to a preset pressure, if yes, execute step 240.

[0086] Step 240, send a pressure relief completion signal.

[0087] The embodiment can realize automatic pressure relief of the debris collection cylinder 302, and the pressure relief process will not cause damage to the debris collection cylinder 302 caused by too fast pressure release.

[0088] Figure 8 As shown in the maintenance flowchart. In an embodiment, as shown in the fluid debris collection control method further comprises: Figure 8 As shown in the maintenance flowchart. In an embodiment, as shown in the fluid debris collection control method further comprises:

[0089] Step 240, judge whether the debris collection cylinder 302 is relieved to a preset pressure, if yes, execute step 240.

[0090] Step 260, judge whether a maintenance completion signal is obtained, if yes, execute step 270.

[0091] Step 270, generate a standby instruction corresponding to the debris collection cylinder. The standby instruction can be used to indicate that the debris collection cylinder 302 after maintenance can be put into debris collection work.

[0092] Figure 9 As shown in the maintenance flowchart. In an embodiment, as shown in the fluid debris collection control method further comprises: Figure 9 As shown in the maintenance flowchart. In an embodiment, as shown in the fluid debris collection control method further comprises:

[0093] Step 300, collect the working condition data of the first electric gate valve, the second electric gate valve and the debris collection cylinder, and send the working condition data to the remote control cabinet and / or the mobile phone terminal.

[0094] Step 310, obtaining the process instruction sent by the remote control cabinet and / or mobile phone terminal.

[0095] The embodiment can further realize remote monitoring and control. The remote control cabinet and / or mobile phone terminal can remotely view the working condition data, and the process instruction can be sent by the remote control cabinet and / or mobile phone terminal.

[0096] An exemplary fluid debris control system is as follows:

[0097] Figure 10 A fluid debris control system structure diagram is shown. The present application also provides a fluid debris control system applied to a debris-capturing electric control device, referring to Figure 2 , the device includes a plurality of fluid channels connected in series, the fluid channel includes a first electrically operated gate valve 102, at least one fluid channel is connected in parallel with a debris-capturing channel, the debris-capturing channel includes a plurality of second electrically operated gate valves 301 connected in series, and a debris-capturing cylinder 302 is arranged between the plurality of second electrically operated gate valves. The debris-capturing electric control device is arranged between a ground flow high-pressure manifold and a gas well head. The inlet of the first fluid channel in the conveying direction is connected with the underground pipeline of the gas well, and the outlet of the last fluid channel in the conveying direction is connected with the ground flow high-pressure manifold. In an embodiment, as shown in Figure 10 , the fluid debris control system includes a data processing module, a fluid control module, and a monitoring module.

[0098] The data processing module is configured to obtain the process instruction and call the corresponding fluid control strategy. The fluid control module is in communication connection with the data processing module, and the fluid control module is configured to control the switching of the opening and closing states of the fluid channel and the debris-capturing channel according to the fluid control strategy. The monitoring module is in communication connection with the fluid control module, and the monitoring module is configured to, if a fluid channel is switched from an open state to a closed state, control the first electrically operated gate valve in the fluid channel to be closed, control all second electrically operated gate valves in the other debris-capturing channels outside the debris-capturing channel connected in parallel with the fluid channel to be closed, and start timing; if the debris-capturing channel is put into work, the blocking condition of the corresponding debris-capturing cylinder is obtained; if the debris-capturing cylinder is in a blocking working condition, a warning signal is sent. The fluid control module is further configured to, if the timing accumulates to a first preset time length, control all second electrically operated gate valves in the debris-capturing channel connected in parallel with the fluid channel switched to a closed state to be opened in a first preset interval, and control all first electrically operated gate valves in the other fluid channels to be opened in a first preset interval; if a switching signal is obtained, the debris-capturing channel corresponding to the debris-capturing cylinder in the blocking working condition is closed, and the fluid channel connected in parallel with the debris-capturing channel is opened.

[0099] Figure 11 A system structure diagram when the present application is applied is shown. In an embodiment, referring to Figure 2 andFigure 11 The data processing module includes: a mobile terminal, a wireless communication transmitter, a smart gateway, a switch, and a processor that are electrically connected to each other.

[0100] The monitoring module includes: multiple pressure transmitters, a first communicator, a second communicator, and a bus. At least one first electric gate valve is equipped with a pressure transmitter, at least one second electric gate valve is equipped with a pressure transmitter, and pressure transmitters are installed at the second flanges at both ends of the chip collector. Figure 11 The first and second electric gate valves are uniformly designated as electric gate valves. The first communicator is connected to each pressure transmitter to monitor the pressure data of the electric gate valves. The first communicator is also connected to the pressure relief electric cock to monitor the pressure relief status. The second communicator is electrically connected to each of the first and second electric gate valves respectively. Figure 11 The first and second electric gate valves are uniformly designated as electric gate valves. The bus is electrically connected to the processor, the first communicator, and the second communicator, respectively.

[0101] The fluid control module includes an electrical control cabinet, which is electrically connected to each of the first electric gate valves and each of the second electric gate valves. Figure 11 The first and second electric gate valves are uniformly labeled as electric gate valves. The electrical control cabinet is also connected to the processor. The electrical control cabinet is also electrically connected to the pressure transmitter and the pressure relief electric cock. The electrical control cabinet can control the opening and closing of each electric gate valve, as well as the opening and closing of the pressure transmitter and the pressure relief electric cock.

[0102] In some embodiments, the processor is housed in a remote control cabinet, which also features a touchscreen. Operators can select production processes A, B, or C on the touchscreen. The processor is also connected to a DI input module and a DQ output module. The DI input module collects feedback signals from the electric valve group's switches, while the DQ output module provides indications for the electric valve group being fully open, faulty, or fully closed. The electrical control cabinet controls each electric gate valve. Power is connected to the control cabinet via a safety circuit breaker, and the power supply is equipped with a control power indicator. The safety circuit breaker is connected to a main power switch and a main power indicator.

[0103] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0104] The block diagrams of devices, apparatuses, devices, and apparatuses involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and apparatuses can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0105] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0106] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features of the invention herein.

[0107] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fluid debris trapping control method, characterized in that, An electric control device for chip collection is provided, the device comprising multiple fluid channels connected in series, each fluid channel including a first electric gate valve, at least one of the fluid channels being connected in parallel with a chip collection channel, each chip collection channel including multiple second electric gate valves connected in series, and a chip collection cylinder being provided between the multiple second electric gate valves; The method includes: Obtain process instructions and invoke the corresponding fluid control strategy; The fluid control strategy is used to control the opening and closing states of the fluid channel and the debris collection channel. If a fluid channel switches from the open state to the closed state, the first electric gate valve in the fluid channel is controlled to close, and all the second electric gate valves in the other chip collection channels (excluding the chip collection channel connected in parallel with the fluid channel) are controlled to close, and a timer is started. If the timer accumulates to the first preset duration, then along the fluid transport direction, all the second electric gate valves in the debris collection channel connected in parallel with the fluid channel that has been switched to the closed state are opened sequentially at the first preset interval duration, and all the first electric gate valves in other fluid channels are opened sequentially at the first preset interval duration. If the chip collection channel is put into operation, the blockage status of the corresponding chip collection cylinder is obtained; If the chip collector is clogged, a warning signal is sent; and If a switching signal is received, the chip collection channel corresponding to the chip collection cylinder in the blocked condition is closed, and the fluid channel connected in parallel with the chip collection channel is opened.

2. The fluid debris trapping control method according to claim 1, characterized in that, The device includes a first fluid channel and a second fluid channel connected in series. A first chip collection channel is connected in parallel to a first flange provided at both ends of the first fluid channel, and a second chip collection channel is connected in parallel to a first flange provided at both ends of the second fluid channel. The process of acquiring process instructions and invoking the corresponding fluid control strategy includes: If the first process instruction is obtained, the corresponding first strategy is invoked. The step of controlling the opening and closing states of the fluid channel and the debris-collecting channel according to the fluid control strategy includes: According to the first strategy, the first fluid channel is controlled to close, the first debris-collecting channel is controlled to open, the second fluid channel is controlled to open, and the second debris-collecting channel is controlled to close, or the first fluid channel is controlled to open, the first debris-collecting channel is controlled to close, the second fluid channel is controlled to close, and the second debris-collecting channel is controlled to open; wherein, the fluid passes through the first debris-collecting channel and the second fluid channel in sequence, or the fluid passes through the first fluid channel and the second debris-collecting channel in sequence.

3. The fluid debris trapping control method according to claim 2, characterized in that, When, according to the first strategy, the first fluid channel is closed, the first debris-collecting channel is opened, the second fluid channel is opened, and the second debris-collecting channel is closed... If a fluid channel switches from an open state to a closed state, the first electric gate valve in the fluid channel is controlled to close, and all second electric gate valves in other chip-collecting channels (excluding the chip-collecting channel connected in parallel with the fluid channel) are controlled to close, and a timer is started, including: The first electric gate valve in the first fluid channel is controlled to close, and all the second electric gate valves in the second chip collection channel are controlled to close; if a feedback signal indicating that the first and second electric gate valves are closed is received, then a timer is started. If the timer accumulates to a first preset duration, then along the fluid transport direction, controlling all second electric gate valves in the parallel chip-collecting channels of the closed fluid channel to open sequentially at a first preset interval, and controlling all first electric gate valves in other fluid channels to open sequentially at a first preset interval includes: If the timer accumulates to the first preset duration, then along the fluid transport direction, control all the second electric gate valves in the first chip collection channel to open sequentially at the first preset interval duration, and control all the first electric gate valves in the second fluid channel to open sequentially at the first preset interval duration; The method further includes: If feedback signals indicating that the second and first electric gate valves are open are received, then the control fluid enters the chip collection electric control device.

4. The fluid debris trapping control method according to claim 2, characterized in that, When the first fluid channel is opened, the first debris-collecting channel is closed, the second fluid channel is closed, and the second debris-collecting channel is opened according to the first strategy... If a fluid channel switches from an open state to a closed state, the first electric gate valve in the fluid channel is controlled to close, and all second electric gate valves in other chip-collecting channels (excluding the chip-collecting channel connected in parallel with the fluid channel) are controlled to close, and a timer is started, including: The first electric gate valve in the second fluid channel is controlled to close, and all the second electric gate valves in the first chip collection channel are controlled to close; if a feedback signal indicating that the first and second electric gate valves are closed is received, then a timer is started. If the timer accumulates to a first preset duration, then along the fluid transport direction, controlling all second electric gate valves in the parallel chip-collecting channels of the closed fluid channel to open sequentially at a first preset interval, and controlling all first electric gate valves in other fluid channels to open sequentially at a first preset interval includes: If the timer accumulates to the second preset duration, then along the fluid transport direction, control all the first electric gate valves in the first fluid channel to open sequentially at the second preset interval duration, and control all the second electric gate valves in the second chip collection channel to open sequentially at the second preset interval duration; The method further includes: If feedback signals indicating that the first and second electric gate valves are open are received, then the control fluid enters the chip removal electric control device.

5. The fluid debris trapping control method according to claim 1, characterized in that, The device includes a first fluid channel and a second fluid channel connected in series. A first chip collection channel is connected in parallel to a first flange provided at both ends of the first fluid channel, and a second chip collection channel is connected in parallel to a first flange provided at both ends of the second fluid channel. The process of acquiring process instructions and invoking the corresponding fluid control strategy includes: If the second process instruction is obtained, the corresponding second strategy is invoked. The step of controlling the opening and closing states of the fluid channel and the debris-collecting channel according to the fluid control strategy includes: According to the second strategy, the first fluid channel is opened, the first debris-collecting channel is closed, the second fluid channel is opened, and the second debris-collecting channel is closed; wherein, the fluid passes through the first fluid channel and the second fluid channel in sequence.

6. The fluid debris trapping control method according to claim 1, characterized in that, Two pressure relief electric cocks are respectively installed at the second flanges at both ends of the debris collection cylinder; If the chip collector is clogged, after sending a warning signal, the method further includes: If a pressure relief command is received, the pressure relief process is initiated. Control the pressure relief electric cock to open at a preset proportional opening, or control the pressure relief electric cock to open at a gradually increasing proportional opening; and If the chip collector is depressurized to a preset pressure, a depressurization completion signal is sent.

7. The fluid debris trapping control method according to claim 6, characterized in that, Also includes: If the pressure relief completion signal is received, a maintenance signal is generated; as well as If a maintenance completion signal is received, a standby command is generated for the corresponding chip collection cylinder.

8. The fluid debris trapping control method according to claim 1, characterized in that, Also includes: Collect operating condition data of the first electric gate valve, the second electric gate valve, and the chip collector, and send the operating condition data to the remote control cabinet and / or mobile terminal. as well as Obtain the process instructions sent by the remote control cabinet and / or the mobile terminal.

9. A fluid debris collection control system, characterized in that, An electric control device for chip collection is provided, the device comprising multiple fluid channels connected in series, each fluid channel including a first electric gate valve, at least one of the fluid channels being connected in parallel with a chip collection channel, each chip collection channel including multiple second electric gate valves connected in series, and a chip collection cylinder being provided between the multiple second electric gate valves; The system includes: The data processing module is configured to: acquire process instructions and invoke the corresponding fluid control strategy; A fluid control module, communicatively connected to the data processing module, is configured to: control the opening and closing states of the fluid channel and the debris collection channel according to the fluid control strategy; and The monitoring module is communicatively connected to the fluid control module. The monitoring module is configured to: if a fluid channel switches from an open state to a closed state, control the first electric gate valve in the fluid channel to close, and control all the second electric gate valves in other chip collection channels (excluding the chip collection channel connected in parallel with the fluid channel) to close, and start timing; if the chip collection channel is in operation, obtain the blockage status of the corresponding chip collection cylinder; if the chip collection cylinder is in a blocked condition, send an early warning signal. The fluid control module is further configured to: if the timer accumulates to a first preset duration, then along the fluid transport direction, control all second electric gate valves in the chip collection channel connected in parallel with the fluid channel that has been switched to the closed state to open sequentially at a first preset interval, and control all first electric gate valves in other fluid channels to open sequentially at a first preset interval; if a switching signal is obtained, then close the chip collection channel corresponding to the chip collection cylinder in the blockage condition, and open the fluid channel connected in parallel with the chip collection channel.

10. The fluid debris trapping control system according to claim 9, characterized in that, The data processing module includes: The mobile terminal, wireless communication transmitter, smart gateway, switch and processor are electrically connected to each other; The monitoring module includes: Multiple pressure transmitters are provided, at least one of the first electric gate valves is provided with the pressure transmitter, at least one of the second electric gate valves is provided with the pressure transmitter, and the second flanges at both ends of the chip collector are provided with the pressure transmitter; The first communicator is connected in communication with each of the pressure transmitters; A second communicator is electrically connected to each of the first electric gate valves and each of the second electric gate valves, respectively; and The bus is electrically connected to the processor, the first communicator, and the second communicator, respectively. The fluid control module includes: The electrical control cabinet is electrically connected to each of the first electric gate valves and each of the second electric gate valves, and the electrical control cabinet is also communicatively connected to the processor.

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