Integrated electronic selective transmission networking structure

Abstract

The utility model provides an integrated electronic selective launching networking structure, which has the capability of networking multiple detonators, realizes the integration of selective launching and detonation, and improves the safety and reliability of underground perforation operation. Comprising a plurality of selective electronic detonators which are connected with an exploder through a bus, the selective electronic detonators are connected end to end in a serial mode to be connected into the bus, and each selective electronic detonator comprises a communication module which comprises a single-chip microcomputer U1, and the communication module is connected with the exploder and used for achieving data receiving and transmitting communication through the single-chip microcomputer U1; and the double-loop control module is connected with the communication module and is used for realizing detonation and communication of the current selective electronic detonator.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic detonators, in particular to an integrated electronic selective firing networking structure. Background Art

[0002] In the oil and shale gas extraction operation, downhole perforation operation is an important process. The perforation operation is to lower the perforating gun to the target layer underground, apply the detonation signal on the ground, and use the detonation device to detonate. After detonation, the shaped perforating bullet will penetrate the perforating gun, casing and cement layer through the hole, so that the formation is connected to the wellbore, so that the formation oil and gas can flow smoothly into the well. The oil and gas well detonators used in the perforation operation have high requirements for the heat resistance time, heat resistance temperature and detonation method, due to the particularity of the use environment and the timeliness of the operation. With the continuous development of basic disciplines such as material technology, explosive technology and electronic technology, people have conducted a series of research on pyrotechnics used in oil and gas well perforating operations, and applied some mature high-tech technologies, principles, and materials to the field of pyrotechnics. A number of new detonators for oil and gas wells with new processes have emerged, such as domestic high-resistance detonators and magnetoelectric detonators, foreign resistance detonators, explosive bridge wire detonators (EBW), impact sheet detonators (EFI), and electronic detonators for oil and gas wells.

[0003] The multi-stage perforation process refers to the perforation process technology of perforating multiple oil and gas layers at one time under the condition of one pipe lowering. It can reduce the number of perforations and save operation time and cost. However, there are still problems in the operation: the existing method is to use a coded pulse multi-stage perforation mode composed of traditional separation devices, but due to the large number of downhole components, the installation process of multi-stage detonators is relatively complicated. In addition, due to the one-way communication, stable data download and upload between the detonator and the detonator cannot be achieved, and the networking communication and detonation of multiple detonators cannot be achieved stably. The overall reliability is poor, which poses a safety hazard during operation. Utility Model Content

[0004] In view of the above problems, the utility model provides an integrated electronic selective firing networking structure, which can have the ability to network multiple detonators and realize the integration of selective firing and detonation, thereby improving the safety and reliability of underground perforating operations.

[0005] The utility model adopts the following technical scheme, an integrated electronic selective firing networking structure, including a plurality of selective firing electronic detonators connected to an initiator via a bus, wherein the selective firing electronic detonators are connected end to end in a serial manner to the bus, and the selective firing electronic detonators have:

[0006] A communication module, including a single chip microcomputer U1, the communication module is connected to the detonator and is used to realize data transceiver communication through the single chip microcomputer U1;

[0007] The dual-loop control module is connected to the communication module and is used to realize the current selective electronic detonator initiation and communication.

[0008] Furthermore, the communication module includes an interface P1, diodes D1, D2, voltage regulator tubes D3, D4, TVS tubes D5, D6, voltage regulator tube D7, a single-chip computer U1, a driver U2, a trigger U3, capacitors C1-C5, resistors R1-R14, a MOS tube Q1, and a triode Q2; the single-chip computer U1 adopts a model HW8A control chip, the driver U2 adopts a model HW4428 driver chip, and the trigger U3 adopts a model HW74 trigger chip; pin 2 of the interface P1 is connected to the positive poles of the diodes D1 and D2 and one end of the TVS tube D5, pin 1 of the interface P1 is connected to the other end of the TVS tube D5 and then grounded, and the diode The positive electrode of the transistor D2 is connected to one end of the resistor R1 and the source of the MOS transistor Q1, the other end of the resistor R1 is connected to the negative electrode of the voltage regulator D3 and the gate of the MOS transistor Q1, the positive electrode of the voltage regulator D3 is connected to one end of the capacitor C1 and one end of the TVS tube D6 and then grounded, the drain of the MOS tube Q1 is connected to the other end of the capacitor C1 and the other end of the TVS tube D6, the negative electrode of the diode D1 is connected to one end of the resistors R4, R5 and R6, one end of the resistor R2 is connected to the 10th pin of the single chip U1, the other end of the resistor R2 is connected to one end of the resistor R3 and the base of the transistor Q2, the The other end of the resistor R3 is connected to the emitter of the transistor Q2 and then grounded, the collector of the transistor Q2 is connected to the other ends of the resistors R4 and R5, the other end of the resistor R6 is connected to one end of the resistor R7, one end of the capacitor C2, and the negative electrode of the voltage regulator D4, the other end of the resistor R7, the other end of the capacitor C2, and the positive electrode of the voltage regulator D4 are connected and then grounded; the 2nd and 4th pins of the driver U2 are connected and then connected to the 9th pin of the single-chip microcomputer U1, the 4th pin of the trigger U3 is connected to one end of the capacitor C3 and then connected to the 8th pin of the single-chip microcomputer U1, one end of the capacitor C4 is connected to the 5th pin of the trigger U3 and then connected to the power supply VCC, the resistor R One end of pin 8 is connected to pin 8 of the single-chip microcomputer U1, pin 7 of the driver U2 is connected to one end of the resistor R10, the other end of the resistor R10 is connected to one end of the resistor R14, pin 5 of the driver U2 is connected to one end of the resistor R11, the other end of the resistor R11 is connected to one end of the resistors R13 and R12, pin 2 of the trigger U3 is connected to the other ends of the resistors R8, R12, and R14, one end of the resistor R9, one end of the capacitor C5, and the negative electrode of the voltage-stabilizing tube D7, and pin 3 of the trigger U3 is connected to the other end of the resistor R9, the other ends of the capacitors C3, C4, and C5, and the positive electrode of the voltage-stabilizing tube D7 and then grounded;

[0009] Furthermore, the dual-loop control module includes capacitors C6-C10, resistors R15-R19, MOS tube Q3, controller U4, and detonator bridge wire B1; the controller U4 adopts model HW2201 control chip, pin 1 of the controller U4 is connected to the other end of the resistor R14, pin 3 of the controller U4 is connected to the other end of the resistor R13, pin 2 of the controller U4 is connected to one end of the resistor R15, pin 4 of the controller U4 is connected to one end of the capacitor C6 and then grounded, the other end of the resistor R15 is connected to the other end of the capacitor C6 and then connected to the power supply VCC, and one end of the resistor R16 is connected to pin 6 of the controller U4. The gate of the MOS tube Q3 is connected to the other end of the resistor R16 and one end of the resistor R17, the drain of the MOS tube Q3 is connected to the other end of the resistor R17 and then grounded, the source of the MOS tube Q3 is connected to the 5th pin of the controller U4 and one end of the detonator bridge wire B1, the 7th pin of the controller U4 is connected to the other end of the detonator bridge wire B1, one end of the capacitors C7, C8, C9, and one end of the resistor R18, the 8th pin of the controller U4 is connected to one end of the capacitor C10 and one end of the resistor R19, the other ends of the capacitors C7, C8, C9, and C10 and the other ends of the resistors R18 and R19 are connected and then grounded.

[0010] The beneficial effect of the utility model is that the selective electronic detonators are connected to the bus end to end in a serial manner, and each selective electronic detonator is equipped with a communication module and a dual-circuit control module, so that two-way communication is established between the detonator and the selective electronic detonator, and the downloading of user data to the detonator and the uploading of internal data of the detonator are completed, and finally the detonator is controlled to complete the detonation function, thereby not only realizing the networking capability of multiple detonators, but also realizing the integration of selective firing and detonation, and having higher safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a connection block diagram of the utility model;

[0012] Figure 2 This is a structural diagram of the utility model's selective electronic detonator;

[0013] Figure 3 It is a schematic diagram of the connection circuit between the communication module and the dual-loop control module in the utility model. DETAILED DESCRIPTION

[0014] like Figure 1 to Figure 3 As shown, the integrated electronic selective firing networking structure of the utility model includes at least 20 selective firing electronic detonators connected to the detonator through a bus, and the selective firing electronic detonators are connected to the bus in a serial manner end to end, and the selective firing electronic detonators have:

[0015] The communication module includes a single-chip microcomputer U1, which is connected to the detonator and is used to realize bus data transmission and reception through the single-chip microcomputer U1; and the external communication protocol can be customized through the single-chip microcomputer U1;

[0016] The dual-loop control module is connected to the communication module and is used to realize the current selection of electronic detonator initiation and communication.

[0017] The communication module also includes an interface P1, diodes D1, D2, voltage regulator tubes D3, D4, TVS tubes D5, D6, voltage regulator tube D7, a single-chip microcomputer U1, a driver U2, a trigger U3, capacitors C1-C5, resistors R1-R14, a MOS tube Q1, and a triode Q2; in this embodiment, the single-chip microcomputer U1 adopts a model HW8A control chip, and the single-chip microcomputer U1 can also adopt other chips with the same function; the driver U2 adopts a model HW4428 driver chip, and the trigger U3 adopts a model HW74 trigger chip; the 2nd pin of the interface P1 is connected to the positive poles of the diodes D1, D2 and one end of the TVS tube D5, and the 1st pin of the interface P1 is connected to the positive poles of the diodes D1, D2 and one end of the TVS tube D5. The positive electrode of the diode D2 is connected to one end of the resistor R1 and the source of the MOS tube Q1, the other end of the resistor R1 is connected to the negative electrode of the voltage regulator tube D3 and the gate of the MOS tube Q1, the positive electrode of the voltage regulator tube D3 is connected to one end of the capacitor C1 and one end of the TVS tube D6 and then grounded, the drain of the MOS tube Q1 is connected to the other end of the capacitor C1 and the other end of the TVS tube D6, the negative electrode of the diode D1 is connected to one end of the resistors R4, R5 and R6, one end of the resistor R2 is connected to the 10th pin of the microcontroller U1, the other end of the resistor R2 is connected to one end of the resistor R3 and the transistor Q 2 are all connected, the other end of the resistor R3 is connected to the emitter of the transistor Q2 and then to ground, the collector of the transistor Q2 is connected to the other ends of the resistors R4 and R5, the other end of the resistor R6 is connected to one end of the resistor R7, one end of the capacitor C2, and the negative electrode of the voltage regulator D4, the other end of the resistor R7, the other end of the capacitor C2, and the positive electrode of the voltage regulator D4 are connected and then to ground; the 2nd and 4th pins of the driver U2 are connected and then connected to the 9th pin of the single-chip microcomputer U1, the 4th pin of the trigger U3 is connected to one end of the capacitor C3 and then to the 8th pin of the single-chip microcomputer U1, one end of the capacitor C4 is connected to the 5th pin of the trigger U3 and then to the power supply VCC, the One end is connected to pin 8 of the single-chip microcomputer U1, pin 7 of the driver U2 is connected to one end of the resistor R10, the other end of the resistor R10 is connected to one end of the resistor R14, pin 5 of the driver U2 is connected to one end of the resistor R11, the other end of the resistor R11 is connected to one end of the resistors R13 and R12, pin 2 of the trigger U3 is connected to the other ends of the resistors R8, R12, and R14, one end of the resistor R9, one end of the capacitor C5, and the negative electrode of the voltage-regulating tube D7, pin 3 of the trigger U3 is connected to the other end of the resistor R9, the other ends of the capacitors C3, C4, and C5, and the positive electrode of the voltage-regulating tube D7 and then grounded; interface P1 is connected to the detonator.

[0018] The dual-loop control module includes capacitors C6-C10, resistors R15-R19, MOS tube Q3, controller U4, and detonator bridge wire B1; in this embodiment, the controller U4 adopts the model HW2201 control chip, the 1st pin of the controller U4 is connected to the other end of the resistor R14, the 3rd pin of the controller U4 is connected to the other end of the resistor R13, the 2nd pin of the controller U4 is connected to one end of the resistor R15, the 4th pin of the controller U4 is connected to one end of the capacitor C6 and then to ground, the other end of the resistor R15 is connected to the other end of the capacitor C6 and then to the power supply VCC, one end of the resistor R16 is connected to the 6th pin of the controller U4, and the gate of the MOS tube Q3 is connected to the resistor The other end of R16 and one end of resistor R17 are connected, the drain of MOS tube Q3 is connected to the other end of resistor R17 and then grounded, the source of MOS tube Q3 is connected to pin 5 of controller U4 and one end of detonator bridge wire B1, pin 7 of controller U4 is connected to the other end of detonator bridge wire B1, one end of capacitors C7, C8, C9, and one end of resistor R18, pin 8 of controller U4 is connected to one end of capacitor C10 and one end of resistor R19, the other ends of capacitors C7, C8, C9, and C10 and the other ends of resistors R18 and R19 are connected and then grounded; the NEXT end in the figure is also used to connect the next selective electronic detonator.

[0019] The utility model transmits and receives data of the bus and the dual-loop control module through the single-chip microcomputer U1. Specifically, the utility model has the ability to network at least 20 rounds, and the communication distance is greater than 6 km. It can realize the integration of selective firing and detonation, and improve the safety and reliability of oil perforation. Specifically, after the detonator is powered on, the selective electronic detonators are powered on one by one, and the detonator obtains the detonator information in turn and records the relative physical connection order. The detonator establishes two-way communication with the selective electronic detonator to complete the download of user data to the detonator and the upload of the internal data of the detonator, and finally controls the detonator to complete the detonation function, thereby realizing the ability to network multiple detonators and realizing the integration of selective firing and detonation. In addition, since the controller U4 can work continuously for 48 hours in an environment of 180°C, the selective electronic detonator can work stably in an environment of 150°C, thereby having better high temperature resistance. Compared with the existing single-chip solution, the utility model can customize the external communication protocol, especially adapt to the needs of foreign customers (such as the United States), and the efficiency of detonator going online step by step is higher, and the system response speed is faster.

[0020] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Integrated electronic selection networking structure, characterized by: It includes a plurality of selective electronic detonators connected to the initiator through a bus, wherein the selective electronic detonators are connected to the bus in a serial manner end to end, and the selective electronic detonators have: A communication module, including a single chip microcomputer U1, the communication module is connected to the detonator and is used to realize data transceiver communication through the single chip microcomputer U1; The dual-loop control module is connected to the communication module and is used to realize the current selective electronic detonator initiation and communication.

2. The integrated electronic hair selection networking structure according to claim 1 is characterized in that: The communication module also includes an interface P1, diodes D1, D2, voltage regulator tubes D3, D4, TVS tubes D5, D6, voltage regulator tube D7, a driver U2, a trigger U3, capacitors C1-C5, resistors R1-R14, a MOS tube Q1, and a triode Q2; the single-chip microcomputer U1 adopts a model HW8A control chip; the driver U2 adopts a model HW4428 driver chip, and the trigger U3 adopts a model HW74 trigger chip; the 2nd pin of the interface P1 is connected to the positive poles of the diodes D1, D2, and one end of the TVS tube D5, the 1st pin of the interface P1 is connected to the other end of the TVS tube D5 and then grounded, the positive pole of the diode D2 is connected to the One end of the resistor R1 and the source of the MOS tube Q1 are connected, the other end of the resistor R1 is connected to the negative electrode of the voltage regulator tube D3 and the gate of the MOS tube Q1, the positive electrode of the voltage regulator tube D3 is connected to one end of the capacitor C1 and one end of the TVS tube D6 and then grounded, the drain of the MOS tube Q1 is connected to the other end of the capacitor C1 and the other end of the TVS tube D6, the negative electrode of the diode D1 is connected to one end of the resistors R4, R5, and R6, one end of the resistor R2 is connected to the 10th pin of the single-chip computer U1, the other end of the resistor R2 is connected to one end of the resistor R3 and the base of the transistor Q2, and the The other end is connected to the emitter of the transistor Q2 and then grounded, the collector of the transistor Q2 is connected to the other ends of the resistors R4 and R5, the other end of the resistor R6 is connected to one end of the resistor R7, one end of the capacitor C2, and the negative electrode of the voltage regulator D4, the other end of the resistor R7, the other end of the capacitor C2, and the positive electrode of the voltage regulator D4 are connected and then grounded; the 2nd and 4th pins of the driver U2 are connected and then connected to the 9th pin of the single-chip microcomputer U1, the 4th pin of the trigger U3 is connected to one end of the capacitor C3 and then connected to the 8th pin of the single-chip microcomputer U1, one end of the capacitor C4 is connected to the 5th pin of the trigger U3 and then connected to the power supply VCC, the One end is connected to pin 8 of the single-chip microcomputer U1, pin 7 of the driver U2 is connected to one end of the resistor R10, the other end of the resistor R10 is connected to one end of the resistor R14, pin 5 of the driver U2 is connected to one end of the resistor R11, the other end of the resistor R11 is connected to one end of the resistors R13 and R12, pin 2 of the trigger U3 is connected to the other ends of the resistors R8, R12, and R14, one end of the resistor R9, one end of the capacitor C5, and the negative electrode of the voltage-stabilizing tube D7, and pin 3 of the trigger U3 is connected to the other end of the resistor R9, the other ends of the capacitors C3, C4, and C5, and the positive electrode of the voltage-stabilizing tube D7 and then grounded.

3. The integrated electronic hair selection networking structure according to claim 2 is characterized in that: The dual-loop control module includes capacitors C6~C10, resistors R15~R19, MOS tube Q3, controller U4, and detonator bridge wire B1; the controller U4 adopts model HW2201 control chip, pin 1 of the controller U4 is connected to the other end of the resistor R14, pin 3 of the controller U4 is connected to the other end of the resistor R13, pin 2 of the controller U4 is connected to one end of the resistor R15, pin 4 of the controller U4 is connected to one end of the capacitor C6 and then grounded, the other end of the resistor R15 is connected to the other end of the capacitor C6 and then connected to the power supply VCC, one end of the resistor R16 is connected to pin 6 of the controller U4, The gate of the MOS tube Q3 is connected to the other end of the resistor R16 and one end of the resistor R17, the drain of the MOS tube Q3 is connected to the other end of the resistor R17 and then grounded, the source of the MOS tube Q3 is connected to the 5th pin of the controller U4 and one end of the detonator bridge wire B1, the 7th pin of the controller U4 is connected to the other end of the detonator bridge wire B1, one end of the capacitors C7, C8, C9, and one end of the resistor R18, the 8th pin of the controller U4 is connected to one end of the capacitor C10 and one end of the resistor R19, the other ends of the capacitors C7, C8, C9, and C10 and the other ends of the resistors R18 and R19 are connected and then grounded.

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