Downhole tool ignition inspection panel and inspection method

Abstract

The invention relates to the technical field of casing cutting in well completion tools, in particular to a downhole tool ignition inspection panel and method, and the method comprises the steps that a simulation unit cable simulation circuit simulates cable resistance values of different depths, and a tool simulation circuit simulates the internal resistance of an energetic cutting tool and the internal resistance of an electromechanical balance anchor tool; the detection unit detects and displays the working current of the downhole tool ignition inspection panel and recognizes the current working state, and the current working state comprises the voltage needed by the electromechanical balance anchor switch leg and the voltage needed by exciting the energetic cutting tool to complete ignition. According to the invention, an inspection tool and a training tool are integrated, ignition voltage and current during actual cutting operation can be calculated when the device is used as the inspection tool, an instrument string is not needed when the device is used as the training tool, and instrument work is directly simulated; and double insurance of the indicating lamp and the ampere meter is arranged, so that when the indicating lamp is damaged, the ampere meter can visually observe the power supply current, and the instrument is prevented from being damaged by overvoltage or overcurrent caused by wrong calculation of the operation voltage.

Description

Technical Field

[0001] The invention relates to the technical field of casing cutting in a well completion tool, and relates to an ignition inspection panel and an inspection method for a downhole tool. Background Art

[0002] The new high-energy metal jet cutting technology is a very advanced cutting process. The tool itself is non-explosive, non-toxic and harmless. It can cut large pipes with small diameters, and can cut steel and alloy pipes (chrome-plated). The cut is smooth without flares and no downhole debris. The ignition check panel is an auxiliary operation panel for the operation of high-energy metal jet cutting tools. It is mainly used to simulate energetic cutting tools and electromechanical balance anchor tools, check the safety of cable systems and ground power supply systems, and ensure the successful excitation of the electromechanical balance anchor switch leg system and the effective ignition of the downhole energetic cutting tool. The existing ignition check panel is often used in mechanical cutting technology. When it is used in the new high-energy metal jet cutting technology, the following problems exist: 1. The working voltage and current of the newly developed cutting tool are different from those of the old RCT. The existing ignition check panel cannot effectively calculate the working voltage and current of the cutting tool; 2. The existing ignition check panel only has an indicator light to indicate the working status of the instrument, and cannot intuitively display the current size. The operation of the cutting tool must be based on the current, and the calculation error is large. The indicator light of the existing ignition check panel is easily damaged and cannot be used after damage; 3. The ignition check panel is complicated to operate and has many gears. Different cutting torches need to select different gears. The new panel is simple to operate and can be used immediately after being connected without selecting various gears. Summary of the invention

[0003] The present invention provides a downhole tool ignition inspection panel and inspection method, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that the existing downhole tool ignition inspection panel is not suitable for the new high-energy metal jet cutting technology and cannot effectively obtain the working voltage and current of the cutting tool.

[0004] One of the technical solutions of the present invention is achieved by the following measures: The following is a further optimization or / and improvement of the above technical solution: a downhole tool ignition inspection panel, comprising: Input interface, connected to downhole instruments or ground power supply system; The simulation unit includes: a cable simulation circuit and a tool simulation circuit, wherein the cable simulation circuit simulates the cable resistance values ​​at different depths, and the tool simulation circuit simulates the internal resistance of the energetic cutting tool and the internal resistance of the electromechanical balance anchor tool; The detection unit detects and displays the working current of the downhole tool ignition inspection panel and identifies the current working state, wherein the current working state includes the voltage required to achieve the electromechanical balance anchor switch leg and the voltage required to achieve the ignition of the exciting energetic cutting tool.

[0005] The above-mentioned tool simulation circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode and a second diode. The first resistor is connected to the positive electrode of the first diode and the third resistor respectively, the negative electrode of the first diode is connected to the second resistor, the third resistor is connected to the negative electrode of the second diode, the positive electrode of the second diode is connected to the fourth resistor, and the second resistor and the fourth resistor are grounded.

[0006] The cable simulation circuit comprises a high-power adjustable resistor, which is connected in series between the input interface and the first resistor.

[0007] The above-mentioned detection unit includes an ammeter and a voltage detection module. The ammeter is connected in series between the input interface and the first resistor. The voltage detection module includes a first comparator base board, a first indicator light, a second comparator base board and a second indicator light. The first comparator base board is respectively connected to the cathode of the first diode and the first indicator light, and the second comparator base board is respectively connected to the anode of the second diode and the second indicator light.

[0008] The above input interface is an aviation socket.

[0009] The above also includes a fuse, which is connected in series between the aviation socket and the ammeter.

[0010] The second technical solution of the present invention is achieved by the following measures: A method for checking ignition of a downhole tool, comprising: Connect the downhole instrument or the ground power supply system to the input interface; Adjust the cable simulation circuit to simulate the cable resistance value; The ground power supply system slowly adds DC positive electricity, the tool simulation circuit simulates the internal resistance of the electromechanical balance anchor tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel. When the working current and voltage of the downhole tool ignition inspection panel meet the voltage requirements of the electromechanical balance anchor switch leg, the ground power supply system voltage is recorded and the ground power supply system is reduced to 0V. The ground power supply system slowly adds negative DC power, the tool simulation circuit simulates the internal resistance of the energetic cutting tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition check panel. When the working current and voltage of the downhole tool ignition check panel meet the voltage standard conditions required for the ignition of the energetic cutting tool, the ground power supply system voltage is recorded and the ground power supply system is reduced to 0V.

[0011] The following are further optimizations and / or improvements to the above technical solutions: The above-mentioned ground power supply system slowly adds DC positive electricity, the tool simulation circuit simulates the internal resistance of the electromechanical balance anchor tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel. When the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required by the electromechanical balance anchor switch leg, the ground power supply system voltage is recorded and the ground power supply system is reduced to 0V, including: The ground power supply system slowly adds DC positive electricity, and the first resistor and the second resistor simulate the internal resistance of the electromechanical balance anchor tool; The current input current of the ammeter detection device is detected, and the first comparator base board collects the voltage value output after passing through the first resistor and compares it with a preset reference voltage; Determine whether the current input current and the comparison result meet the voltage requirements for the electromechanical balance anchor switch leg. If yes, the voltage required for the electromechanical balance anchor switch leg has been reached. Record the ground power supply system voltage and reduce the ground power supply system voltage to 0V. The voltage requirements for the electromechanical balance anchor switch leg include a voltage value greater than a preset reference voltage and the ammeter displays 0.5A.

[0012] The above-mentioned ground power supply system slowly adds negative direct current, the tool simulation circuit simulates the internal resistance of the energetic cutting tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel. When the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required for the ignition of the energetic cutting tool, the ground power supply system voltage is recorded and the ground power supply system power supply is reduced to 0V, including: The ground power supply system slowly adds negative DC power, and the first resistor, the third resistor and the fourth resistor simulate the internal resistance of the electromechanical balance anchor tool; The current input current of the ammeter detection device is detected, and the second comparator base board collects the voltage value output after passing through the third resistor and compares it with the preset reference voltage; Determine whether the current input current and the comparison result meet the voltage standard conditions for ignition of the energetic cutting tool. If yes, the voltage required for ignition of the energetic cutting tool has been reached. Record the voltage of the ground power supply system and reduce the ground power supply system to 0V. The voltage standard conditions for ignition of the energetic cutting tool include that the voltage value is greater than the preset reference voltage and the ammeter displays -1.5A.

[0013] The beneficial effects of the present invention include: 1. The present invention integrates the inspection tool and the training tool into one. When used as an inspection tool, it can calculate the ignition voltage and current during the actual cutting operation. When used as a training tool, it does not need to be connected to the instrument string and can directly simulate the instrument operation; 2. The present invention can simulate two instruments (cutting torch and electromechanical balance anchor) at the same time, and detect and indicate the working status of the two instruments respectively; 3. The present invention is provided with double insurances of indicator light and ammeter. When the indicator light is damaged, the ammeter can also visually observe the power supply current, avoiding calculation errors of the operating voltage, resulting in overvoltage or overcurrent damage to the instrument; 4. The present invention is easy to use and can be used in conjunction with a cutting torch instrument string without the need for an external power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a schematic diagram of the structure of a downhole tool ignition inspection panel of the present invention.

[0015] Attached Figure 2 This is a schematic diagram of the structure of another downhole tool ignition inspection panel of the present invention.

[0016] Attached Figure 3 It is a schematic diagram of the circuit structure of the present invention.

[0017] Attached Figure 4 This is a flow chart of the downhole tool ignition inspection method of the present invention.

[0018] Attached Figure 5 The figure is a connection diagram of a downhole tool ignition inspection panel of the present invention.

[0019] Attached Figure 6 This is a connection diagram of another downhole tool ignition inspection panel of the present invention.

[0020] Attached Figure 7 This is a flow chart of the method for detecting the voltage required for the electromechanical balance anchor switch leg in the present invention.

[0021] Attached Figure 8 This is a flow chart of the method for detecting the voltage required for ignition of the energetic cutting tool in the present invention.

[0022] The codes in the accompanying drawings are: R8 is the first resistor, R7 is the second resistor, R9 is the third resistor, R10 is the fourth resistor, D3 is the first diode, D4 ​​is the second diode, D5 is the first indicator light, D6 is the second indicator light, B1 is the first comparator, R11, R12, R15 are resistors, B2 is the second comparator, R13, R14, R16 are resistors, C3 is the first capacitor, C4 is the first capacitor, A is an ammeter, RP1 is a high-power adjustable resistor, P1 is an aviation socket, and F1 is a fuse. DETAILED DESCRIPTION

[0023] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0024] The present invention will be further described below in conjunction with embodiments and drawings: Embodiment 1: As attached Figure 1As shown, a downhole tool ignition inspection panel comprises: Input interface, connected to downhole instruments or ground power supply system; The simulation unit includes: a cable simulation circuit and a tool simulation circuit, wherein the cable simulation circuit simulates the cable resistance values ​​at different depths, and the tool simulation circuit simulates the internal resistance of the energetic cutting tool and the internal resistance of the electromechanical balance anchor tool; The detection unit detects and displays the working current of the downhole tool ignition inspection panel and identifies the current working state, wherein the current working state includes the voltage required to achieve the electromechanical balance anchor switch leg and the voltage required to achieve the ignition of the exciting energetic cutting tool.

[0025] Embodiment 2: As attached Figure 2 , 3 As shown, a downhole tool ignition inspection panel comprises: Input interface, connected to downhole instruments or ground power supply system, the input interface here can be aviation socket P1; The simulation unit includes: a cable simulation circuit and a tool simulation circuit, wherein the cable simulation circuit simulates the cable resistance values ​​at different depths, and the tool simulation circuit simulates the internal resistance of the energetic cutting tool and the internal resistance of the electromechanical balance anchor tool; The above is as attached Figure 3 As shown, the cable simulation circuit includes a high-power adjustable resistor RP1, which is connected in series between the input interface and the ammeter A; the RP1 adjustable resistor is a high-power adjustable resistor used to simulate the cable resistance.

[0026] The above is as attached Figure 3 As shown, the tool simulation circuit includes a first resistor R8, a second resistor R7, a third resistor R9, a fourth resistor R10, a first diode D3 and a second diode D4. The first resistor R8 is connected to the anode of the first diode D3 and the third resistor R9 respectively, the cathode D3 of the first diode is connected to the second resistor R7, the third resistor R9 is connected to the cathode of the second diode D4, the anode of the second diode D4 is connected to the fourth resistor R10, and the second resistor R7 and the fourth resistor R10 are grounded.

[0027] The first resistor R8 and the second resistor R7 simulate the internal resistance of the electromechanical balance anchor, the first resistor R8, the third resistor R9, and the fourth resistor R10 simulate the internal resistance of the energetic cutting tool, the second resistor R7 is the electromechanical balance anchor current sampling resistor, and the fourth resistor R10 is the energetic cutting tool current sampling resistor; the first diode D3 and the second diode D4 isolate the positive and negative voltages respectively and conduct the working paths of different instruments.

[0028] The detection unit detects and displays the working current of the downhole tool ignition inspection panel and identifies the current working state, wherein the current working state includes the voltage required to achieve the electromechanical balance anchor switch leg and the voltage required to achieve the ignition of the exciting energetic cutting tool.

[0029] The above is as attached Figure 3 As shown, the detection unit includes an ammeter A and a voltage detection module. The ammeter A is connected in series between the input interface and the first resistor R8. The voltage detection module includes a first comparator base board, a first indicator light D5, a second comparator base board and a second indicator light D6. The first comparator base board is respectively connected to the cathode of the first diode D3 and the first indicator light D5, and the second comparator base board is respectively connected to the anode of the second diode D4 and the second indicator light D6.

[0030] The internal structure of the first comparator base board is shown in the attached figure. Figure 3 As shown, it includes a first comparator B1, resistors R11, R12, R15, and a first capacitor C3. The first comparator B1 is a wide-voltage input comparator with a built-in reference voltage. The input voltage comes from the voltage drop on the current sampling resistor. The divided voltage of the resistors R12 and R15 comes from the voltage drop of the second resistor R7 (electromechanical balance anchor current sampling resistor), which is compared with the built-in reference voltage of the first comparator B1. When it is higher than the built-in reference voltage, the resistor R11 is turned on and the first indicator D5 lights up green, indicating that the voltage required for the electromechanical balance anchor switch leg is reached.

[0031] The internal structure of the second comparator base board is shown in the attached figure. Figure 3 As shown, it includes a second comparator B2, resistors R13, R14, R16, and a second capacitor C4. The second comparator B2 is a wide-voltage input comparator with a built-in reference voltage. The input voltage comes from the voltage drop on the current sampling resistor. The divided voltage of the resistors R14 and R16 comes from the voltage drop of the fourth resistor R10 (electromechanical balance anchor current sampling resistor), which is compared with the built-in reference voltage of the first comparator B2. When it is higher than the built-in reference voltage, the resistor R13 is turned on and the second indicator D6 lights up in red, indicating that the voltage required for ignition of the energetic cutting tool has been reached.

[0032] This embodiment further includes a fuse F1, which is connected in series between the aviation socket P1 and the ammeter A.

[0033] Example 3: Figure 4 As shown, a downhole tool ignition inspection method comprises: Step S110, connecting the downhole instrument or the ground power supply system to the input interface; Step S120, adjusting the cable simulation circuit to simulate the cable resistance value; Step S130, the ground power supply system slowly adds DC positive electricity, the tool simulation circuit simulates the internal resistance of the electromechanical balance anchor tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel. When the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required by the electromechanical balance anchor switch leg, the ground power supply system voltage is recorded, and the ground power supply system power supply is reduced to 0V; In step S140, the ground power supply system slowly adds negative DC power, the tool simulation circuit simulates the internal resistance of the energetic cutting tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition check panel. When the working current and voltage of the downhole tool ignition check panel meet the voltage standard conditions required for ignition of the energetic cutting tool, the ground power supply system voltage is recorded and the ground power supply system power supply is reduced to 0V.

[0034] The above step S110 connects the downhole instrument or the ground power supply system to the input interface, specifically including: 1. When used as a personnel training operation, there is no need to connect the actual cable. The equipment connection method is as shown in the attached Figure 5 As shown, the ground power supply system is connected to the aviation socket P1 of the present invention; 2. When used as a test before actual downhole work, it is necessary to connect the actual cable. The equipment connection method is as shown in the attached Figure 6 As shown, connect the ground system, cables, faucets and other instrument strings required for downhole work, such as centralizers, CCL, etc. The lower end of the instrument string is connected to the ignition inspection panel through a connection line. This test cable, faucet and instrument string safety and the actual voltage required for the normal operation of the instrument prevent actual construction failure due to poor insulation and other reasons.

[0035] The above step S120 adjusts the cable simulation circuit to simulate the cable resistance value, that is, measures the actual cable resistance, rotates the knob of the high-power adjustable resistor RP1, and adjusts it to the same resistance value.

[0036] In the above steps S130 and S140, when the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required for ignition of the energetic cutting tool in the test before the actual downhole work, or when the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required for ignition of the energetic cutting tool, the voltage is the working voltage and current required for actual construction. Therefore, the present invention integrates the inspection tool and the training tool into one. When used as an inspection tool, it can calculate the ignition voltage and current during the actual cutting operation. When used as a training tool, there is no need to connect the instrument string and directly simulate the instrument operation.

[0037] Example 4: Figure 7As shown, a method for checking ignition of a downhole tool is provided, wherein a ground power supply system slowly adds DC positive electricity, a tool simulation circuit simulates the internal resistance of an electromechanical balance anchor tool, a detection unit detects and displays the working current and voltage of a downhole tool ignition check panel, and when the working current and voltage of the downhole tool ignition check panel meet the voltage standard condition required by the electromechanical balance anchor switch leg, the voltage of the ground power supply system is recorded, and the ground power supply system is powered down to 0V, further comprising: Step S210, the ground power supply system slowly adds DC positive electricity, and the first resistor R8 and the second resistor R7 simulate the internal resistance of the electromechanical balance anchor tool; Step S220, the ammeter A detects the current input current of the device, and the first comparator base board collects the voltage value output after passing through the first resistor R8, and compares it with a preset reference voltage; Step S230, determine whether the current input current and the comparison result meet the voltage standard conditions for the electromechanical balance anchor switch leg. If yes, the voltage required for the electromechanical balance anchor switch leg has been reached. Record the ground power supply system voltage, and reduce the ground power supply system voltage to 0V. The voltage standard conditions for the electromechanical balance anchor switch leg include that the voltage value is greater than the preset reference voltage and the ammeter A head displays 0.5A.

[0038] Example 5: Figure 8 As shown, a method for checking ignition of a downhole tool is provided, wherein a ground power supply system slowly adds negative direct current, a tool simulation circuit simulates the internal resistance of an energetic cutting tool, a detection unit detects and displays the working current and voltage of a downhole tool ignition check panel, and when the working current and voltage of the downhole tool ignition check panel meet the voltage standard condition required for ignition of the energetic cutting tool, the voltage of the ground power supply system is recorded, and the ground power supply system is powered down to 0V, further comprising: Step S310, the ground power supply system slowly adds negative DC power, and the first resistor R8, the third resistor R9 and the fourth resistor R10 simulate the internal resistance of the energetic cutting tool; Step S320, the ammeter A detects the current input current of the device, and the second comparator base board collects the voltage value output after passing through the third resistor R9, and compares it with a preset reference voltage; Step S330, determine whether the current input current and the comparison result meet the voltage standard conditions for igniting the energetic cutting tool. In response, if yes, the voltage required for igniting the energetic cutting tool has been reached. The ground power supply system voltage is recorded, and the ground power supply system is reduced to 0V. The voltage standard conditions for igniting the energetic cutting tool include that the voltage value is greater than the preset reference voltage and the ammeter A head displays -1.5A.

[0039] The present invention can simulate the energetic cutting tool and the electromechanical balance anchor tool, thereby combining the voltage data and the current data to check the safety of the cable system and the ground power supply system, so as to ensure the successful excitation of the electromechanical balance anchor switch leg system and the effective ignition of the downhole energetic cutting tool; further simulate the switch leg of the electromechanical balance anchor and the ignition operation of the energetic cutting tool, calculate the switch leg voltage of the electromechanical balance anchor and the ignition voltage of the energetic cutting tool, and can also be used as a training tool to train operators. The specific present invention integrates the inspection tool and the training tool into one, and when used as an inspection tool, it can calculate the ignition voltage and current during the actual cutting operation. When used as a training tool, it does not need to connect the instrument string, and directly simulates the instrument operation; it can simulate two instruments (cutting torch and electromechanical balance anchor) at the same time, and respectively detect and indicate the working status of the two instruments; and it is provided with an indicator light and an ammeter double insurance. When the indicator light is damaged, the ammeter can also visually observe the power supply current to avoid calculating the operating voltage error, causing overvoltage or overcurrent damage to the instrument; further, the present invention is easy to use, and is used in a matching cutting torch instrument string without an external power supply.

[0040] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A downhole tool ignition inspection panel, characterized in that: include: Input interface, connected to downhole instruments or ground power supply system; The simulation unit includes: a cable simulation circuit and a tool simulation circuit, wherein the cable simulation circuit simulates the cable resistance values ​​at different depths, and the tool simulation circuit simulates the internal resistance of the energetic cutting tool and the internal resistance of the electromechanical balance anchor tool; The detection unit detects and displays the working current of the downhole tool ignition inspection panel and identifies the current working state, wherein the current working state includes the voltage required to achieve the electromechanical balance anchor switch leg and the voltage required to achieve the ignition of the exciting energetic cutting tool.

2. The downhole tool ignition inspection panel according to claim 1, characterized in that: The tool simulation circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode and a second diode. The first resistor is connected to the anode of the first diode and the third resistor respectively, the cathode of the first diode is connected to the second resistor, the third resistor is connected to the cathode of the second diode, the anode of the second diode is connected to the fourth resistor, and the second resistor and the fourth resistor are grounded.

3. The downhole tool ignition inspection panel according to claim 2, characterized in that: The cable simulation circuit comprises a high-power adjustable resistor, which is connected in series between the input interface and the first resistor.

4. The downhole tool ignition inspection panel according to claim 2 or 3, characterized in that: The detection unit includes an ammeter and a voltage detection module. The ammeter is connected in series between the input interface and the first resistor. The voltage detection module includes a first comparator base board, a first indicator light, a second comparator base board and a second indicator light. The first comparator base board is respectively connected to the cathode of the first diode and the first indicator light, and the second comparator base board is respectively connected to the anode of the second diode and the second indicator light.

5. The downhole tool ignition inspection panel according to any one of claims 2 to 3, characterized in that: The input interface is an aviation socket.

6. The downhole tool ignition inspection panel according to claim 4, characterized in that: The input interface is an aviation socket.

7. The downhole tool ignition inspection panel according to claim 5, characterized in that: It also includes a fuse, which is connected in series between the aviation socket and the ammeter.

8. A method for checking ignition of a downhole tool using the device according to any one of claims 1 to 7, characterized in that: include: Connect the downhole instrument or the ground power supply system to the input interface; Adjust the cable simulation circuit to simulate the cable resistance value; The ground power supply system slowly adds DC positive electricity, the tool simulation circuit simulates the internal resistance of the electromechanical balance anchor tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel. When the working current and voltage of the downhole tool ignition inspection panel meet the voltage requirements of the electromechanical balance anchor switch leg, the ground power supply system voltage is recorded and the ground power supply system is reduced to 0V. The ground power supply system slowly adds negative DC power, the tool simulation circuit simulates the internal resistance of the energetic cutting tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition check panel. When the working current and voltage of the downhole tool ignition check panel meet the voltage standard conditions required for the ignition of the energetic cutting tool, the ground power supply system voltage is recorded and the ground power supply system is reduced to 0V.

9. The downhole tool ignition inspection method according to claim 8, characterized in that: The ground power supply system slowly adds DC positive electricity, the tool simulation circuit simulates the internal resistance of the electromechanical balance anchor tool, and the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel. When the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required by the electromechanical balance anchor switch leg, the ground power supply system voltage is recorded, and the ground power supply system power supply is reduced to 0V, including: The ground power supply system slowly adds DC positive electricity, and the first resistor and the second resistor simulate the internal resistance of the electromechanical balance anchor tool; The current input current of the ammeter detection device is detected, and the first comparator base board collects the voltage value output after passing through the first resistor and compares it with a preset reference voltage; Determine whether the current input current and the comparison result meet the voltage requirements for the electromechanical balance anchor switch leg. If yes, the voltage required for the electromechanical balance anchor switch leg has been reached. Record the ground power supply system voltage and reduce the ground power supply system voltage to 0V. The voltage requirements for the electromechanical balance anchor switch leg include a voltage value greater than a preset reference voltage and the ammeter displays 0.5A.

10. The downhole tool ignition inspection method according to claim 8 or 9, characterized in that: The ground power supply system slowly adds negative direct current, the tool simulation circuit simulates the internal resistance of the energetic cutting tool, the detection unit detects and displays the working current and voltage of the downhole tool ignition inspection panel, and when the working current and voltage of the downhole tool ignition inspection panel meet the voltage standard conditions required for the ignition of the energetic cutting tool, the ground power supply system voltage is recorded, and the ground power supply system power supply is reduced to 0V, including: The ground power supply system slowly adds negative DC power, and the first resistor, the third resistor and the fourth resistor simulate the internal resistance of the electromechanical balance anchor tool; The current input current of the ammeter detection device is detected, and the second comparator base board collects the voltage value output after passing through the third resistor and compares it with the preset reference voltage; Determine whether the current input current and the comparison result meet the voltage standard conditions for ignition of the energetic cutting tool. If yes, the voltage required for ignition of the energetic cutting tool has been reached. Record the voltage of the ground power supply system and reduce the ground power supply system to 0V. The voltage standard conditions for ignition of the energetic cutting tool include that the voltage value is greater than the preset reference voltage and the ammeter displays -1.5A.

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