Intelligent underground control system for improving safety

Abstract

The invention relates to the field of underground safety, in particular to an intelligent underground control system for improving safety, and the system comprises a pipeline system which comprises a pipeline and a pump body, the pump body is used for injecting fluid into the pipeline, a pressure sensor is arranged in the pipeline, and the pipeline is communicated with an underground safety valve; the simulation module is used for performing stress simulation on the subsurface safety valve to obtain mechanical property curves of a central pipe and a connecting sleeve of the subsurface safety valve; the stress adjusting module comprises an adjusting valve, the adjusting valve is used for reducing axial force borne by a central pipe of the subsurface safety valve, and the adjusting valve is further used for reducing axial force borne by a connecting sleeve of the subsurface safety valve; the control module is used for acquiring detection data of the pressure sensor and judging the residual life of the central pipe and the connecting sleeve according to a mechanical property curve of the subsurface safety valve; the control module is further used for controlling the first driving piece to rotate the ball according to the remaining life of the center pipe and the connecting sleeve, so that the remaining life of the center pipe and the connecting sleeve of the subsurface safety valve is balanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of downhole safety, in particular to an intelligent downhole control system for improving safety. BACKGROUND

[0002] The downhole safety valve is a safety device for providing downhole shut-in, which can realize remote downhole shut-in when an emergency occurs at the wellhead, thereby providing a powerful guarantee for the safe production of high-pressure oil and gas wells. The downhole safety valve system is composed of a downhole safety valve, a ground safety valve, a control pipeline and a ground control system. With the increasingly perfect numerical analysis model of the downhole safety valve, the numerical model of the downhole safety valve is applied to the research and design process of the downhole safety valve to determine the failure period of the downhole safety valve, and thus a safer intelligent downhole control system for improving safety is built.

[0003] In the prior art, the downhole safety valve can be simulated by simulation technology, and thus the relationship between the equivalent stress of the downhole safety valve under typical working conditions such as setting, fracturing, opening and shutting down is determined, and the load condition when the critical failure state of the key components is analyzed. According to the stress condition of the downhole safety valve, the downhole safety valve is mainly affected by the change of axial force and the change of internal pressure, among which the center pipe or connecting sleeve of the downhole safety valve is most easily damaged. Since the working characteristics and stress conditions of the valve structure directly affect the service life and service state of the downhole safety valve, when the center pipe or connecting sleeve of the downhole safety valve is damaged, it is easy to cause the downhole safety valve to fail, thereby affecting the safety of the operation scene, and therefore a intelligent downhole control system for improving safety is needed to prolong the service life of the downhole safety valve and reduce the occurrence of failure. SUMMARY The present application provides an intelligent downhole control system for improving safety, which is used to dynamically change the concentration position of the axial force, balance the residual life of the center pipe and connecting sleeve of the downhole safety valve, and thereby prolong the service life of the downhole safety valve and reduce the frequency of failure.

[0004] The present application is implemented by the following technical scheme: an intelligent downhole control system for improving safety, comprising: A pipeline system comprising a pipeline and a pump body, the pump body being used to inject fluid into the pipeline, the pipeline being provided with a pressure sensor, and the pipeline being communicated with a downhole safety valve; A simulation module for stress simulation of the downhole safety valve to obtain the mechanical property curve of the center pipe and connecting sleeve of the downhole safety valve; The stress adjusting module comprises an adjusting valve located at one side of the downhole safety valve, the adjusting valve comprises a ball and a first driving member for driving the ball to penetrate into the pipeline, the first driving member is used for driving the ball to rotate, the ball is provided with a first through hole in the longitudinal direction and a second through hole in the transverse direction, the first through hole is provided with a first flow guide vane for reducing the axial force on the central pipe of the downhole safety valve, and the second through hole is provided with a second flow guide vane for reducing the axial force on the connecting sleeve of the downhole safety valve. The control module is used for obtaining the detection data of the pressure sensor, drawing the stress change of the downhole safety valve along the time axis, judging the residual life of the central pipe and the connecting sleeve according to the mechanical property curve of the central pipe and the connecting sleeve, and controlling the first driving member to rotate the ball to change the axial stress value on the central pipe and the connecting sleeve of the downhole safety valve, so that the residual life of the central pipe and the connecting sleeve of the downhole safety valve is balanced.

[0005] Further, the pump body is also connected with an energy accumulator.

[0006] Further, the control module is also used for judging the energy storage state of the energy accumulator, and issuing an alarm when the pressure storage of the energy accumulator does not reach the first preset value after a preset time length.

[0007] Further, the control module is used for closing the pump body when the pressure storage of the energy accumulator reaches the second preset value.

[0008] Further, the pipeline is also connected with a surface safety valve.

[0009] Further, the pipeline is provided with a fusible plug, and the control module is used for closing the surface safety valve after the fusible plug is triggered.

[0010] Further, the surface safety valve is electrically connected with a delay switch, the delay switch is used for triggering when the surface safety valve is closed, and the delay switch is used for delaying and closing the downhole safety valve after triggering.

[0011] Further, the stress adjusting module further comprises a branch pipe connected with the pipeline, the branch pipe is fixedly connected with a ring body, the ring body is provided with a plurality of threaded holes in the circumferential direction, the threaded holes are detachably connected with plug bolts and mounting bolts, and the inner side of the ring body is detachably connected with a blocking plate through the mounting bolts.

[0012] Further, the top of the ring body is detachably connected with a gate machine, the top of the gate machine is detachably connected with a functional cabin, the adjusting valve is located in the functional cabin, and the functional cabin is provided with a pressure regulator.

[0013] Further, the top of the ball is provided with an insertion port, the insertion port is slidably connected with an insertion plate, the insertion plate is provided with a second driving member, and the second driving member is used for driving the insertion plate to penetrate into the ball.

[0014] The technical scheme of the present application has at least the following beneficial effects: The pipeline system is used for transporting fluid, which is pumped into the pipeline under the action of the pump body, and the downhole safety valve is used for realizing remote downhole shut-in in an emergency, and the downhole safety valve is kept open in a conventional state. The pressure sensor is used for detecting the pressure in the pipeline to evaluate the influence of the change of the axial force acting on the downhole safety valve and the influence of the change of the internal pressure. Since the central pipe and the connecting sleeve of the downhole safety valve are most likely to be damaged, the service life of the downhole safety valve is mainly referred to the central pipe and the connecting sleeve, and when the service life of the central pipe and the connecting sleeve is prolonged, the frequency of failure of the downhole safety valve can be reduced, and the downhole safety can be improved.

[0015] The stress simulation module is used for stress simulation to obtain the mechanical property curve of the central pipe and the connecting sleeve of the downhole safety valve. Since the shape, position and action of the central pipe and the connecting sleeve are different, the service life of the central pipe and the connecting sleeve also differs. Since the connecting sleeve is sleeved outside the central pipe, the influence of the change of the internal pressure on the central pipe and the connecting sleeve is synchronous, and it is difficult to change the stress relationship, and as for the axial force, since the internal and external positions of the connecting sleeve and the central pipe are different, the central pipe and the connecting sleeve can be subjected to different axial forces by changing the fluid concentration position.

[0016] The adjusting valve of the stress adjusting module is arranged in front of the downhole safety valve, the first driving member is used to drive the ball to rotate to change the fluid concentration position to change the stress distribution. When the first through hole is coaxial with the pipeline, the first guide vane guides the fluid originally acting on the central pipe to reduce the impact force of the fluid on the central pipe, and at the same time, the impact force on other areas is increased due to the guiding, thereby reducing the axial force on the central pipe and increasing the axial force on the connecting sleeve. When the first through hole is coaxial with the pipeline, the axial force on the central pipe is increased, and the axial force on the connecting sleeve is reduced.

[0017] The control module can detect the condition in the pipeline in real time through the pressure sensor, and then the pressure sensor detection data is brought in to evaluate the remaining life of the central pipe and the connecting sleeve by using the mechanical property curve. Since the damage of the downhole safety valve depends on the earliest damage time node of the central pipe and the connecting sleeve, the stress acting on the central pipe and the connecting sleeve is adjusted by using the stress adjusting module, and then the damage time of the central pipe and the connecting sleeve is balanced, and the failure time of the downhole safety valve is delayed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The module schematic diagram of the intelligent downhole control system for improving safety according to the present application; Figure 2 The schematic diagram of the first guide vane of the intelligent downhole control system for improving safety according to the present application; Figure 3 Schematic view of the second guide vane for the embodiment of the intelligent downhole control system for improving safety of the application in action; Figure 4 Schematic view of the ball retraction function cabin for the embodiment of the intelligent downhole control system for improving safety of the application; Figure 5 Schematic view of the plugboard inserted into the insertion port for the embodiment of the intelligent downhole control system for improving safety of the application; Figure 6 Schematic view of the adjustment valve axis for the embodiment of the intelligent downhole control system for improving safety of the application; Figure 7 Enlarged schematic view of the first guide vane for the embodiment of the intelligent downhole control system for improving safety of the application; Figure 8 Schematic view of the plugging of the blocking plate for the embodiment of the intelligent downhole control system for improving safety of the application; Figure 9 Control logic schematic diagram for the embodiment of the intelligent downhole control system for improving safety of the application.

[0019] Reference signs: 1, adjustment valve; 2, branch pipe; 3, ring body; 4, plugging bolt; 5, mounting bolt; 6, blocking plate; 7, gate machine; 8, function cabin; 9, pressure regulator; 10, center pipe; 11, connecting sleeve; 101, ball; 102, first driving member; 103, first through hole; 104, second through hole; 105, first guide vane; 106, second guide vane; 107, insertion port; 108, plugboard; 109, second driving member. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The following detailed description illustrates the specific implementation method: Example 1 As attached Figures 1-9 As shown, an intelligent downhole control system for improving safety includes a pipeline system comprising a pipeline and a pump body. The pump body is used to inject fluid into the pipeline. A pressure sensor is installed inside the pipeline. The pipeline is connected to a downhole safety valve. The pressure sensor is located after the downhole safety valve to determine whether the downhole safety valve is closed based on the pressure.

[0024] Simulation module: Used to perform stress simulation on downhole safety valves and obtain the mechanical performance curves of the central pipe 10 and connecting sleeve 11 of the downhole safety valve.

[0025] Stress adjustment module: includes regulating valve 1, which is located on one side of the downhole safety valve. Regulating valve 1 includes a ball 101 and a first drive member 102. The first drive member 102 is a motor with an integrated telescopic push rod. The first drive member 102 is used to drive the ball 101 to penetrate into the pipe and to drive the ball 101 to rotate. The ball 101 has a longitudinal first through hole 103 and a transverse second through hole 104. A first guide vane 105 is provided in the first through hole 103 to reduce the axial force on the central pipe 10 of the downhole safety valve. A second guide vane 106 is provided in the second through hole 104 to reduce the axial force on the connecting sleeve 11 of the downhole safety valve.

[0026] The control module is used to acquire the detection data of the pressure sensor, plot the stress change of the downhole safety valve along the time axis, and determine the remaining life of the central tube 10 and the connecting sleeve 11 based on the mechanical performance curves of the central tube 10 and the connecting sleeve 11 of the downhole safety valve. The control module is also used to control the first driving component 102 to rotate the ball 101 based on the remaining life of the central tube 10 and the connecting sleeve 11, thereby changing the axial stress value of the central tube 10 and the connecting sleeve 11 of the downhole safety valve and balancing the remaining life of the central tube 10 and the connecting sleeve 11 of the downhole safety valve.

[0027] The pipeline system is used for transporting fluid, the fluid is pumped into the pipeline under the action of the pump body, and the downhole safety valve is used for realizing remote downhole shut-in in an emergency. The pressure sensor is used for detecting the pressure in the pipeline to evaluate the influence of the axial force change of the downhole safety valve and the influence of the internal pressure change. Since the center pipe 10 and the connecting sleeve 11 of the downhole safety valve are the most vulnerable to damage, the service life of the downhole safety valve mainly refers to the center pipe 10 and the connecting sleeve 11, and when the service life of the center pipe 10 and the connecting sleeve 11 is prolonged, the frequency of failure of the downhole safety valve can be reduced, and the downhole safety can be improved.

[0028] The stress simulation is performed by using the simulation module to obtain the mechanical property curve of the center pipe 10 and the connecting sleeve 11 of the downhole safety valve. Since the materials, shapes, positions and action conditions of the center pipe 10 and the connecting sleeve 11 are different, and the stress conditions under different working conditions are also different, the service life of the center pipe 10 and the connecting sleeve 11 also has differences. Among them, since the connecting sleeve 11 is sleeved outside the center pipe 10, the influence of the internal pressure change on the center pipe 10 and the connecting sleeve 11 is synchronous, and it is difficult to change the stress relationship, and since the center pipe 10 is inside the connecting sleeve 11, the influence of the internal pressure change is greater. As for the axial force, since the downhole safety valve has two working modes of opening and closing, the springs used for driving have different effects on the center pipe 10 and the connecting sleeve 11 in the opening and closing, and the center pipe 10 and the connecting sleeve 11 will be directly impacted by the fluid, so the stress conditions of the center pipe 10 and the connecting sleeve 11 are more complex in the axial force. As for the axial force, since the inner and outer positions of the connecting sleeve 11 and the center pipe 10 are different, the concentrated position of the fluid can be changed to make the connecting sleeve 11 and the center pipe 10 bear different axial forces.

[0029] The adjusting valve 1 of the stress adjusting module is arranged in front of the downhole safety valve, the first driving member 102 is used to drive the ball 101 to rotate to change the concentrated position of the fluid, so as to change the stress distribution. The first guide vane 105 and the second guide vane 106 are baffles in different positions, wherein the first guide vane 105 blocks the central area of the pipeline, and the second guide vane 106 blocks the edge area of the pipeline. When the first through hole 103 is coaxial with the pipeline, the first guide vane 105 will guide the fluid originally acting on the center pipe 10, so that the impact force of the fluid on the center pipe 10 is reduced, and at the same time, due to the guiding, the impact force of other areas is increased, thereby reducing the axial force of the center pipe 10 and increasing the axial force of the connecting sleeve 11. When the first through hole 103 is coaxial with the pipeline, the axial force of the center pipe 10 is increased, and the axial force of the connecting sleeve 11 is reduced. Through the driving of the first driving member 102, the stress distribution can be switched among the normal state, the center pipe 10 and the connecting sleeve 11.

[0030] The control module can detect the condition in the pipeline in real time through the pressure sensor, and then bring in the pressure sensor detection data, and evaluate the remaining life of the center pipe 10 and the connecting sleeve 11 by using the mechanical property curve. Since the damage of the downhole safety valve depends on the earliest damage time node of the center pipe 10 and the connecting sleeve 11, the stress adjustment module is used to adjust the stress received by the center pipe 10 and the connecting sleeve 11, thereby balancing the damage time of the center pipe 10 and the connecting sleeve 11, and delaying the failure time point of the downhole safety valve.

[0031] Embodiment 2 The difference from the above embodiment is that the pump body is also communicated with an accumulator, and the control module is also used to judge the energy storage state of the accumulator, and an alarm is sent when the accumulator pressure does not reach the first preset value after a preset time length. The control module is used to close the pump body when the accumulator pressure reaches the second preset value.

[0032] The accumulator is an energy storage device in a hydraulic pneumatic system. It converts energy in the system into compressed energy or potential energy at the right time and stores it. When the system needs it, it converts the compressed energy or potential energy into hydraulic or pneumatic energy and releases it back to the system, so that the stability of the pressure in the pipeline can be improved through the accumulator. After the pump body is started, it is checked whether the accumulator is working normally. When the accumulator does not reach the first preset value for a long time, it means that the accumulator is in an abnormal working state, so an alarm is sent to remind the operator to check the abnormal condition. When the accumulator pressure reaches the second preset value, it means that the pressure value of the accumulator is out of standard, and the pump body is stopped for continuous injection.

[0033] Embodiment 3 The difference from the above embodiment is that the pipeline is also communicated with a ground safety valve, and the pipeline is provided with a fusible plug, and the control module is used to close the ground safety valve after the fusible plug is triggered. The ground safety valve is electrically connected with a delay switch, and the delay switch is used to trigger when the ground safety valve is closed. The delay switch is used to delay and close the downhole safety valve after triggering.

[0034] The ground safety valve can serve as another safety measure. The fusible plug is a component that can check the high temperature state. When the fusible plug is triggered, it means that the temperature in the pipeline is too high, which will trigger the safety measure to close the ground safety valve first. After the ground safety valve is closed, the delay switch is used to trigger the downhole safety valve to be closed.

[0035] Embodiment 4 The difference from the above-mentioned embodiment is that the stress adjusting module further comprises a branch pipe 2 in communication with the pipeline, a ring body 3 is welded and fixed on the branch pipe 2, a plurality of threaded holes are arranged in the circumferential direction of the ring body 3, the threaded holes are detachably connected with plug bolts 4 and mounting bolts 5, and a blocking plate 6 is detachably connected with the inner side of the ring body 3 through the mounting bolts 5. A gate machine 7 is detachably connected to the top of the ring body 3, a functional cabin 8 is detachably connected to the top of the gate machine 7, the adjusting valve 1 is located in the functional cabin 8, the functional cabin 8 is provided with a pressure regulator 9, and the pressure regulator 9 is an injection pump in communication with a preset fluid source. A plug-in hole 107 is arranged at the top of the sphere 101, a plug-in plate 108 is slidably connected to the plug-in hole 107, the plug-in plate 108 is provided with a second driving part 109, and the second driving part 109 is used to drive the plug-in plate 108 to be inserted into the sphere 101.

[0036] The branch pipe 2 can construct a short pipe of the intervening pipeline. The adjusting valve 1 is located in the functional cabin 8, and the functional cabin 8 changes the communication relationship with the branch pipe 2 through the gate machine 7. Since the adjusting valve 1 is also essentially a valve, it also has a service life, and it also needs to be replaced when it is damaged. Therefore, when the adjusting valve 1 is not in use, it can be withdrawn into the functional cabin 8 and sealed by closing the gate machine 7, so that the fluid impact force will not directly act on the adjusting valve 1, so that the service life of the adjusting valve 1 is greatly prolonged.

[0037] However, when the gate machine 7 is opened, the functional cabin 8 will be in communication with the pipeline, and there is a pressure difference between them, which will produce a jet flow when opened. Therefore, the pressure regulator 9 is arranged in the functional cabin 8, which will inject fluid into the functional cabin 8 to balance the pressure of the functional cabin 8 and the pipeline, so that when the adjusting valve 1 needs to act, the pressure balance state can be constructed through the pressure regulator 9 and then opened through the gate machine 7, so that the adjusting valve 1 can safely explore into the pipeline to act.

[0038] The function of the ring body 3 is to facilitate the disassembly and maintenance of the gate machine 7, or the installation of the adjusting valve 1 or the gate machine 7. When the gate machine 7 needs to be disassembled, first close the gate machine 7, replace the adjusting valve 1 in the functional cabin 8 with a hydraulic machine, the output shaft of the hydraulic cylinder is detachably provided with a blocking plate 6, and then the pressure in the functional cabin 8 is adjusted to be close to that of the pipeline by using the adjusting valve 1, the gate machine 7 is opened, the blocking plate 6 is driven by the hydraulic machine, the blocking plate 6 is engaged with the ring body 3, at this time the blocking plate 6 seals the threaded holes, the plug bolts 4 in the threaded holes are disassembled, and the mounting bolts 5 are installed, the mounting bolts 5 fix the blocking plate 6 with the ring body 3, so that the fluid can be blocked at the ring body 3, and the user can disassemble the gate machine 7 and the functional cabin 8 for maintenance.

[0039] Furthermore, since the regulating valve 1 can be inserted into the pipeline, the regulating valve 1 can also be used as a blocking member when the downhole safety valve is replaced or repaired. The top of the ball 101 is provided with an insertion port 107, which can be closed by inserting a plug plate 108 to close the passage in the ball 101. Thus, when the plug plate 108 is fitted into the ball 101, the ball 101 directly has the function of controlling the opening and closing of the pipeline, thereby helping the operator to temporarily block the pipeline when the downhole safety valve is replaced or repaired.

[0040] Obviously, the above embodiments are only examples for clearly illustrating the present application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments cannot be exhaustively listed. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An intelligent downhole control system for improved safety, characterized in that The system comprises: A pipeline system comprising a pipeline and a pump body for injecting fluid into the pipeline, the pipeline being provided with a pressure sensor and being connected with a downhole safety valve; An emulation module for stress emulation of the downhole safety valve to obtain mechanical property curves of a central pipe (10) and a connecting sleeve (11) of the downhole safety valve; A stress adjustment module comprising an adjusting valve (1) located at one side of the downhole safety valve, the adjusting valve (1) comprising a ball (101) and a first driving member (102) for driving the ball (101) to penetrate into the pipeline and for driving the ball (101) to rotate, the ball (101) being provided with a first through hole (103) in longitudinal direction and a second through hole (104) in transverse direction, the first through hole (103) being provided with a first flow guide (105) for reducing axial force on the central pipe (10) of the downhole safety valve, and the second through hole (104) being provided with a second flow guide (106) for reducing axial force on the connecting sleeve (11) of the downhole safety valve; A control module for obtaining detection data of the pressure sensor, drawing stress change of the downhole safety valve along a time axis, judging residual life of the central pipe (10) and the connecting sleeve (11) according to the mechanical property curves of the central pipe (10) and the connecting sleeve (11), and controlling the first driving member (102) to rotate the ball (101) to change axial stress value on the central pipe (10) and the connecting sleeve (11) of the downhole safety valve and balance the residual life of the central pipe (10) and the connecting sleeve (11) of the downhole safety valve.

2. The intelligent downhole control system for improved safety according to claim 1, characterized in that, The pump body is further connected with an accumulator.

3. The intelligent downhole control system for improved safety according to claim 2, characterized in that, The control module is further configured to judge energy storage state of the accumulator and issue an alarm when the accumulator fails to reach a first preset value after energy storage for a preset length of time.

4. The intelligent downhole control system for improved safety according to claim 3, characterized in that, The control module is configured to shut down the pump body when the accumulator reaches a second preset value.

5. The intelligent downhole control system for improved safety according to claim 1, characterized in that, The pipeline is further connected with a surface safety valve.

6. The intelligent downhole control system for improved safety according to claim 5, characterized in that, The pipeline is provided with a fusible plug, and the control module is configured to shut down the surface safety valve after the fusible plug is triggered.

7. The intelligent downhole control system for improved safety according to claim 6, characterized in that, The surface safety valve is electrically connected with a delay switch configured to be triggered when the surface safety valve is shut down and configured to delay and shut down the downhole safety valve after being triggered.

8. The intelligent downhole control system for improved safety according to claim 1, characterized in that, The stress adjustment module further comprises a branch pipe (2) connected with the pipeline, the branch pipe (2) being fixedly connected with a ring body (3) having a plurality of threaded holes formed in a circumferential direction, the threaded holes being detachably connected with a blocking bolt (4) and a mounting bolt (5), and the ring body (3) being detachably connected with a blocking plate (6) through the mounting bolt (5) on an inner side.

9. The intelligent downhole control system for improved safety according to claim 8, characterized in that, The ring body (3) is detachably connected with a gate machine (7) on a top portion, and the gate machine (7) is detachably connected with a function cabin (8) on a top portion, the adjusting valve (1) being located in the function cabin (8), and the function cabin (8) being provided with a pressure regulator (9).

10. The intelligent downhole control system for improved safety according to claim 9, characterized in that, The sphere (101) is provided with an insertion opening (107) at the top, and an insertion plate (108) is slidably connected to the insertion opening (107), and the insertion plate (108) is provided with a second driving member (109) for driving the insertion plate (108) to insert into the sphere (101).

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