Device for enhancing stratum energy based on wave impedance matching

Abstract

The utility model discloses a device for enhancing stratum energy based on wave impedance matching, which comprises an underground fixed detection body arranged underground through an armored photoelectric composite cable; the wave impedance testing unit is arranged on the underground fixed detection body and is used for detecting the wave impedance value of a target reservoir; the underground positioning unit is arranged on the underground fixed detection body below the wave impedance testing unit and is used for capturing the position of an underground perforation hole; and the continuous shock wave generation unit is arranged below the underground fixed detection body and is used for emitting continuous pulse shock waves into the perforation hole. The problem that the oil and gas recovery ratio is difficult to improve due to the fact that reservoir energy is difficult to quickly and fully supplement or improve and smooth channels are difficult to establish during oil and gas exploitation at present is solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of reservoir property improvement, and in particular to a device for enhancing formation energy based on wave impedance matching. Background Art

[0002] Oil is the blood of industry. After the efforts of several generations of oil workers, China's petroleum industry has stabilized its crude oil production at 200 million tons in 2022, and its natural gas production has grown rapidly. In 2022, its natural gas production reached 220 billion cubic meters, making it the world's fourth largest gas producer. This is all due to the development of oil and gas theory and engineering innovation.

[0003] Oil and natural gas are stored underground, up to several thousand meters deep. In addition to their own physical effects (such as temperature, expansion, etc.), the overlying strata exert pressure on the underground rocks. When the oil and gas reservoir pressure drops, the oil well production will decrease due to the weakening of the formation energy and the blockage of the oil and gas migration channels. Therefore, the key issue to improve the oil and gas recovery rate is how to supplement or increase the reservoir energy and establish a smooth channel.

[0004] Currently, the commonly used technical means such as nitrogen or carbon dioxide energy fracturing and acidizing plugging removal have a series of disadvantages such as high operating costs and complex operations.

[0005] Therefore, there is an urgent need for a reservoir energy enhancement device that can improve oil and gas recovery rates and reduce operating costs. Utility Model Content

[0006] The purpose of the present invention is to provide a device for enhancing formation energy based on wave impedance matching, which solves the problem that it is difficult to quickly and fully replenish or improve reservoir energy and establish unobstructed channels during the existing exploitation of oil and natural gas, resulting in difficulty in improving oil and gas recovery rates.

[0007] To achieve the above objectives, the first aspect of the present disclosure provides a device for enhancing formation energy based on wave impedance matching, comprising:

[0008] The underground fixed detection body is set underground through the armored photoelectric composite cable;

[0009] A wave impedance testing unit is arranged on the downhole fixed detection body and is used to detect the wave impedance value of the target reservoir;

[0010] A downhole positioning unit, arranged on the downhole fixed detection body below the wave impedance testing unit, for capturing the position of the downhole perforation hole;

[0011] The continuous shock wave generating unit is arranged below the downhole fixed detection body and is used for emitting continuous pulse shock waves into the perforation holes.

[0012] In some embodiments, the device for enhancing formation energy based on wave impedance matching further includes a ground control unit, and the ground control unit is connected to the armored optoelectronic composite cable;

[0013] The armored optoelectronic composite cable is electrically connected to the wave impedance testing unit, the downhole positioning unit and the continuous shock wave generating unit respectively, so as to control the operation of the wave impedance testing unit, the downhole positioning unit and the continuous shock wave generating unit through the ground control unit.

[0014] In some embodiments, the downhole positioning unit comprises:

[0015] A positioning ring sleeve is arranged on the underground fixed detection body;

[0016] The camera in the well is fixed to the positioning ring sleeve and is used to photograph the inner wall of the well to capture the position of the perforation hole.

[0017] In some embodiments, the continuous shock wave generating unit includes a discharge electrode, and the discharge electrode is disposed on a fixed detection body downhole, so as to generate a continuous pulse shock wave by applying a voltage to the discharge electrode to form a discharge.

[0018] In some embodiments, the continuous shock wave generating unit further includes an in-hole energy unit, the in-hole energy unit includes a capacitor, the capacitor is fixedly arranged on a fixed detection body downhole, and the capacitor is electrically connected to the armored optoelectronic composite cable;

[0019] The capacitor is electrically connected to the discharge upper portion of the discharge electrode, and the discharge lower portion of the discharge electrode is grounded.

[0020] In some embodiments, the wave impedance testing unit comprises:

[0021] A first ultrasonic transmitter is arranged on the underground fixed detection body, and a first receiver is arranged at a position of the underground fixed detection body corresponding to the first ultrasonic transmitter;

[0022] A second ultrasonic transmitter is arranged on the underground fixed detection body, and a second receiver is arranged at a position of the underground fixed detection body corresponding to the second ultrasonic transmitter.

[0023] In some embodiments, the device for enhancing formation energy based on wave impedance matching further comprises:

[0024] A winding roller is fixed to the ground outside the well through a fixing bracket, and the armored photoelectric composite cable is wound on the winding roller;

[0025] The mounting bracket is arranged at the wellhead, and a fixed pulley is fixedly arranged on the mounting bracket. One end of the armored optoelectronic composite cable is connected to the underground fixed detection body through the fixed pulley.

[0026] By adopting the above technical solution, through the setting of structures such as wave impedance test unit, downhole positioning unit and continuous shock wave generating unit, the downhole positioning unit can be used to capture and remove the position of the perforation hole in the top well in real time, and then the wave impedance test unit can be used to measure the wave impedance value of the target reservoir, and finally, according to the wave impedance value, the continuous shock wave generating unit can be used to emit pulse shock waves into the perforation hole. In this way, the wave impedance data of the operating well can be detected online, and the data obtained is more objective and accurate than the laboratory sample data, and the rock wave impedance changes are monitored in real time, automatically tracked and adjusted, and the action parameters are effectively optimized in real time. At the same time, the continuous pulse shock wave effect is used to effectively improve the physical properties of the target reservoir.

[0027] In addition, continuous pulse shock waves are used to stimulate the fluid medium in the fracture system of the target reservoir to generate microbubbles, and the series of effects such as microbubble collision, expansion and collapse are used to increase the pressure system in the fracture, thereby increasing the energy of the underground reservoir in the well; at the same time, the microbubbles adhere to the surface of the fracture channel to reduce flow friction and improve the recovery rate. This method is simple to operate, low in cost, short in time, and has high economic benefits.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide further understanding of the present disclosure and constitute a part of the specification. They are used to explain the present disclosure together with the following detailed description, but do not constitute a limitation of the present disclosure.

[0030] In the attached picture:

[0031] Figure 1 It is a structural schematic diagram of a device for enhancing formation energy based on wave impedance matching provided by the utility model;

[0032] Figure 2 It is a schematic diagram of a reservoir and a crack under continuous shock wave action provided by the utility model.

[0033] Description of reference numerals:

[0034] 1. Downhole fixed detection body; 2. Wave impedance test unit; 21. First ultrasonic transmitter; 22. Second ultrasonic transmitter; 3. Downhole positioning unit; 31. Positioning ring; 32. In-hole camera; 4. Continuous shock wave generating unit; 41. Discharge electrode; 42. Capacitor; 5. Ground control unit; 6. Armored optoelectronic composite cable; 71. Winding roller; 72. Fixed bracket; 73. Mounting bracket; 74. Fixed pulley; 8. Perforating hole. DETAILED DESCRIPTION

[0035] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0036] The present invention provides a device for enhancing formation energy based on wave impedance matching, such as Figure 1 As shown, the device for enhancing formation energy based on wave impedance matching includes a downhole fixed detection body 1, a wave impedance test unit 2, a downhole positioning unit 3 and a continuous shock wave generating unit 4, wherein the downhole fixed detection body 1 is arranged downhole through an armored photoelectric composite cable 6. The wave impedance test unit 2 is arranged on the downhole fixed detection body 1, and is used to detect the wave impedance value of the target reservoir; the downhole positioning unit 3 is arranged on the downhole fixed detection body 1 below the wave impedance test unit 2, and is used to capture the position of the downhole perforation hole 8. The continuous shock wave generating unit 4 is arranged below the downhole fixed detection body 1, and is used to emit continuous pulse shock waves into the perforation hole 8.

[0037] Through the setting of this structure, the downhole fixed detection body 1 can be placed in the well first, and then the downhole positioning unit 3 can be used to capture the position of the perforation hole 8 in the well in real time to determine the accurate position of the perforation hole 8. Then the wave impedance testing unit 2 can be used to measure the wave impedance value of the target reservoir. Finally, according to the measured wave impedance value, the continuous shock wave generating unit 4 can be used to emit pulse shock waves into the perforation hole 8. At the same time, according to the real-time measured wave impedance value, the frequency of the pulse shock wave emitted by the continuous shock wave generating unit 4 can be adjusted in real time to better match the rock wave impedance, thereby maximizing the energy transmission efficiency of the rock coupled shock wave and reducing energy loss. When the shock wave reaches the micro-cracks inside the rock, reflection and transmission occur, and the energy change causes the particles on the end face of the crack to initially vibrate continuously; under the action of the continuous shock wave, the vibration states of the particles on the two end faces of the rock crack are different. Under the action of the surface free energy, the original crack is changed, thereby forming a larger and more complex crack system, which communicates with the previous cracks and improves the permeability of the rock. By repeating this process continuously, a larger and more complex fracture system can be formed, which can better improve the physical properties of the target reservoir and thus increase unconventional oil and gas production.

[0038] In some embodiments, Figure 1 As shown, the above-mentioned device for enhancing formation energy based on wave impedance matching also includes a ground control unit 5, which is connected to the armored optoelectronic composite cable 6. In addition, the armored optoelectronic composite cable 6 is also electrically connected to the wave impedance testing unit 2, the downhole positioning unit 3 and the continuous shock wave generating unit 4, so as to control the operation of the wave impedance testing unit 2, the downhole positioning unit 3 and the continuous shock wave generating unit 4 through the ground control unit 5.

[0039] By using the setting of the ground control unit 5, when the downhole positioning unit 3 captures the position of the perforation hole 8, the information can be transmitted to the ground control unit 5 in time, so that the ground control unit 5 can record the information of the perforation hole 8. Then, in the process of using the continuous shock wave generating unit 4 to generate pulse shock waves into the perforation hole 8, the wave impedance testing unit 2 can transmit the tested rock wave impedance numerical information to the ground control unit 5 in real time. At this time, the ground control unit 5 can calculate the electric explosion shock wave frequency value matching it according to the obtained rock wave impedance information, so as to adjust the frequency of the pulse shock wave emitted by the continuous shock wave generating unit 4 in real time. At the same time, by continuously measuring the rock density and wave impedance online, the pulse shock wave frequency can be continuously adjusted to achieve the optimal matching with the reservoir rock wave impedance. In this way, the shock wave propagates along the rock from near to far, acting on the target reservoir with optimal efficiency, causing its physical properties (porosity, permeability, etc.) to change. At the same time, the wave impedance testing unit 2 monitors online the changes in the rock wave impedance when the rock is excited by continuous pulse shock waves, confirms and adjusts the shock wave frequency that matches the rock wave impedance, so as to maximize the rock-coupled shock wave energy transmission efficiency and reduce energy loss.

[0040] In some embodiments, Figure 1 As shown, the downhole positioning unit 3 includes a positioning ring sleeve 31 and a well camera 32, wherein the downhole positioning unit 3 is fixedly mounted on the downhole fixed detection body 1, and the well camera 32 is fixedly mounted on the positioning ring sleeve 31, and is used to photograph the inner wall of the well to capture the position of the perforation hole 8.

[0041] By using the camera 32 in the well, the well wall can be photographed more comprehensively, so that the position of the perforation hole 8 in the well can be captured more accurately. At the same time, the camera 32 in the well is electrically connected to the ground control unit 5 through the armored photoelectric composite cable, so that the information captured by the camera 32 in the well can be transmitted to the ground control unit 5 in real time.

[0042] In some embodiments, Figure 1As shown, the above-mentioned continuous shock wave generating unit 4 includes a discharge electrode 41, and the discharge electrode 41 is fixedly arranged on the underground fixed detection body 1, so as to generate a continuous pulse shock wave by applying a voltage through the discharge electrode 41 to form a discharge. Among them, the discharge electrode 41 includes a discharge upper section and a discharge lower section, and there is a gap between the discharge upper section and the discharge lower section. When a high voltage is applied between the discharge upper section and the discharge lower section, a discharge can be formed between the discharge upper section and the discharge lower section.

[0043] Through the setting of this discharge electrode 41, when a high voltage is applied to the discharge electrode 41, the medium between the discharge upper section and the discharge lower section of the discharge electrode 41 can be broken down to form a discharge, thereby utilizing the energy of the high-voltage discharge to generate a continuous pulse shock wave. In this way, the formed pulse shock wave can be utilized to disturb the rock and the target reservoir.

[0044] In some embodiments, Figure 1 As shown, the above-mentioned continuous shock wave generating unit 4 also includes an in-hole energy unit, which includes a capacitor 42, which is fixedly arranged on the downhole fixed detection body 1, and the capacitor 42 is electrically connected to the armored photoelectric composite cable 6. In addition, the capacitor 42 is electrically connected to the discharge upper section of the discharge electrode 41, and the discharge lower section of the discharge electrode is grounded, that is, it is conductive with the earth.

[0045] The capacitor 42 can store a certain amount of charge to apply a voltage to the discharge electrode 41 . When a voltage is applied to the discharge upper portion of the discharge electrode 41 , discharge can be ensured to occur between the discharge upper portion and the discharge lower portion of the discharge electrode 41 .

[0046] In some embodiments, Figure 1 As shown, the wave impedance test unit 2 includes a first ultrasonic transmitter 21 and a second ultrasonic transmitter 22, wherein the first ultrasonic transmitter 21 is fixedly arranged on the downhole fixed detection body 1, and a first receiver is arranged at the downhole fixed detection body 1 corresponding to the first ultrasonic transmitter 21. The second ultrasonic transmitter 22 is also fixedly arranged on the downhole fixed detection body 1, and a second receiver is fixedly arranged at the downhole fixed detection body 1 corresponding to the second ultrasonic transmitter 22.

[0047] In this way, the first ultrasonic transmitter 21 and the first receiver can be used to measure the density of the rock, and the second ultrasonic transmitter 22 and the second receiver can be used to measure the longitudinal wave velocity. After obtaining the density and longitudinal wave velocity of the rock, the rock wave impedance information can be calculated.

[0048] It should be noted that the first ultrasonic transmitter 21 and the second ultrasonic transmitter 22 can be provided in plurality, respectively, so as to more accurately detect the density and longitudinal wave velocity of the rock. For example, when detecting the rock density, two or three groups of the first ultrasonic transmitters 21 can be provided to transmit sound waves respectively, and then the sound waves are received by the corresponding first receivers to comprehensively calculate the rock density and ensure the accuracy of the measurement. Accordingly, when measuring the longitudinal wave velocity, multiple groups of the second ultrasonic transmitters 22 can be used to transmit sound waves for measurement, so as to more accurately measure the longitudinal wave velocity.

[0049] In some embodiments, Figure 1 As shown, the above-mentioned device for enhancing formation energy based on wave impedance matching also includes a winding roller 71 and a mounting bracket 73, wherein a fixed bracket 72 is provided on the ground, the winding roller 71 is fixed to the ground outside the well through the fixed bracket 72, and the above-mentioned armored photoelectric composite cable 6 is wound on the winding roller 71. The mounting bracket 73 is fixedly arranged at the wellhead, and a fixed pulley 74 is fixedly arranged on the mounting bracket 73. One end of the armored photoelectric composite cable 6 is connected to the underground fixed detection body 1 through the fixed pulley 74, and the other end is electrically connected to the ground control unit 5.

[0050] In this way, while ensuring that the ground control unit 5 is connected to the underground fixed detection body 1 by using the armored optoelectronic composite cable 6, the underground fixed detection body 1 can be moved to a specific position underground.

[0051] It should be noted that the size of the downhole fixed detection body 1 is substantially consistent with the size of the well. After the downhole fixed detection body 1 is placed in the well and operated using the armored photoelectric composite cable 6, the downhole fixed detection body 1 can be relatively stably arranged in the well. In addition, the downhole fixed detection body 1 can be a columnar mounting shell, so that the above-mentioned wave impedance test unit 2, downhole positioning unit 3 and continuous shock wave generating unit 4 and other structures are fixedly mounted on the downhole fixed detection body 1 in sequence.

[0052] Based on the same technical concept, the embodiment of the present disclosure also provides a method for enhancing formation energy based on wave impedance matching, which includes the following steps.

[0053] Step S10, providing the device for enhancing formation energy based on wave impedance matching involved in the above embodiment.

[0054] Step S20, placing the downhole fixed detection body 1 in the well.

[0055] Step S30 , scanning the sidewall of the well by the downhole positioning unit 3 to capture the perforation holes 8 on the well wall and determine the positions of the perforation holes 8 .

[0056] In step S30, after the position of the well wall perforation hole 8 is determined by using the downhole positioning unit 3, this information can be uploaded in real time, and the downhole fixed detection body 1 can be controlled to be fixed at the corresponding position.

[0057] Step S40, using the wave impedance testing unit 2 to test the wave impedance value of the target reservoir, and obtaining the rock wave impedance value of the target reservoir in real time.

[0058] In step S40, the wave impedance value of the target reservoir is tested by the wave impedance testing unit 2, and the wave impedance value of the target reservoir is obtained in real time, including the following steps.

[0059] Step S401, using the first ultrasonic transmitter 21 to transmit sound waves, and then calculating the rock density according to the time when the first receiver receives the reflection of the sound waves.

[0060] Step S402, using the second ultrasonic transmitter 22 to transmit sound waves, and then calculating the longitudinal wave velocity according to the time it takes for the second receiver to receive the reflection of the sound waves;

[0061] Step S403, calculating the wave impedance value of the target reservoir according to the measured rock density and longitudinal wave velocity.

[0062] Step S50, controlling the continuous shock wave generating unit 4 to operate so as to emit pulse shock waves and inject them into the perforation holes 8, and adjusting the frequency of emitting pulse shock waves by the continuous shock wave generating unit 4 in real time according to the rock wave impedance value measured in real time.

[0063] In this way, the downhole positioning unit 3 can be used to capture the position of the perforation hole 8 in the well in real time to determine the exact position of the perforation hole 8, and then the wave impedance testing unit 2 can be used to measure the wave impedance value of the target reservoir. Finally, according to the measured wave impedance value, the continuous shock wave generating unit 4 can be used to emit pulse shock waves into the perforation hole 8. At the same time, according to the real-time measured wave impedance value, the frequency of the pulse shock wave emitted by the continuous shock wave generating unit 4 can be adjusted in real time to better match it with the rock wave impedance, thereby maximizing the energy transmission efficiency of the rock coupled shock wave and reducing energy loss, so as to better improve the physical properties of the target reservoir and increase the unconventional oil and gas production.

[0064] It should be further explained here that Figure 2 As shown, oil and natural gas are stored in various conventional and unconventional reservoirs such as sandstone, shale, coal rock and tight sandstone. They generally have certain heterogeneity. Affected by sedimentation and tectonic movement, in addition to different mineral components, the reservoirs also have a large number of microcracks, fractures and joints.

[0065] The above-mentioned rock wave impedance is also called wave impedance. Its physical meaning is the stress required to cause disturbance in the rock so that the particles produce unit vibration velocity. The larger the wave impedance, the greater the stress required to produce unit vibration velocity; conversely, the smaller the wave impedance, the smaller the stress required to produce unit vibration velocity. For example, in geotechnical engineering, it is generally believed that if the wave impedance of the selected explosive matches the wave impedance of the rock (close to the same), a better blasting effect can be achieved. Just like the electrical impedance in the circuit, when the impedance between the systems is matched, the energy transmission efficiency is higher. Rock wave impedance = rock density × longitudinal wave velocity. It shows that when the stress wave propagates in the rock mass, the moving rock particles produce the disturbance force required for unit velocity. It reflects the rock's resistance to momentum transfer. Rocks with large wave impedance are often more difficult to blast. Wave impedance is an inherent characteristic of rock. If the rock is determined and the wave source is determined, its wave impedance is a certain value.

[0066] The change of wave impedance on both sides of the rock interface has a great influence on the energy propagation of the wave. Ideally, when the wave impedance on both sides is equal, the energy of the incident wave is transmitted to the other side through the interface. When we work normally, we do not want the shock wave energy to be consumed in the near-well area, but to act and affect the far end as much as possible. When the rock density is constant, the higher the frequency, the greater the wave impedance. Therefore, it is necessary to continuously adjust the shock wave frequency and wavelength to achieve the optimal matching of shock wave energy propagation, and at the same time act on the rock from near to far to increase the excitation range of the shock wave.

[0067] Experiments and practice have proved that under the action of cyclic dynamic loads, the two end faces of the original cracks in the rock are affected by periodic vibrations. Coupled with the accumulation of reflected wave energy, the mechanical properties of the rock fatigue deteriorate, the ability to withstand external dynamic loads becomes lower, and the integrity becomes worse. Coupled with the effect of original rock stress, the damage to the rock is further aggravated, ultimately leading to changes in the physical properties of the rock (porosity, permeability, density, etc.).

[0068] Due to the different rock mineral components, microcracks and mechanical parameters of each lithology, the same shock wave has different longitudinal wave velocities and wave impedances when propagating in different rocks. Since wave velocity = wavelength × frequency, after determining the wave impedance values ​​of reservoirs of different lithologies, continuous pulse shock waves are used to excite and continuously act on the reservoirs. By adjusting the pulse shock wave frequency, the longitudinal wave propagation velocity is changed to match the rock wave impedance, maximizing energy coupling and continuously accumulating energy. The shock wave propagates in the reservoir as a discontinuous peak, and its propagation characteristics are the jumping changes of the wave front, that is, peaks are generated, and the physical properties of the medium at the peaks change suddenly, causing strong destructive effects; at the same time, when the shock wave encounters cracks or microcracks, part of it penetrates and continues to propagate, and part of it will be reflected, and the crack wall will produce several times the original pressure. In this way, larger-scale cracks are formed on the original cracks in the form of physical action, improving the connectivity and permeability of the reservoir and improving the physical properties of the reservoir.

[0069] At the same time, the natural cracks in the oil and gas reservoirs contain a large amount of fluids such as oil, natural gas or water. After hundreds of millions of years, due to the diffusion mechanism and compaction during deposition, the oil or water fluids will saturate and store various gases in the reservoir; under the action of continuous shock waves, the gas will produce oscillation excitation on the fluid due to the continuous alternation of wave crests and troughs, and the cracks will become larger, and the pressure inside the cracks will decrease, causing the gas saturated in the fluid to overflow in the form of microbubbles, just like shaking a bottle full of cola, the pressure inside the bottle will rise; or saturated gas in the fracturing fluid during fracturing, there is also the same effect. In the later stage, continuous shock wave excitation is applied to the liquid containing saturated gas, so that the gas is precipitated from the liquid medium in the form of microbubbles. Microbubbles constantly collide and expand during the overflow process, resulting in rupture, similar to cavitation to generate energy, and the overflowing gas increases the pressure of the microfracture system, thereby increasing the reservoir energy within a certain range; at the same time, microbubbles adhere to the surface of the fracture channel, which can effectively reduce the flow friction of the fluid, so that oil and gas can be discharged along the new fracture system under the drive of increased energy, thereby increasing the oil and gas recovery rate.

[0070] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0071] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0072] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A device for enhancing formation energy based on wave impedance matching, characterized in that: include: The underground fixed detection body is set underground through the armored photoelectric composite cable; A wave impedance testing unit is arranged on the downhole fixed detection body and is used to detect the wave impedance value of the target reservoir; A downhole positioning unit, arranged on the downhole fixed detection body below the wave impedance testing unit, for capturing the position of the downhole perforation hole; The continuous shock wave generating unit is arranged below the downhole fixed detection body and is used for emitting continuous pulse shock waves into the perforation holes.

2. The device for enhancing formation energy based on wave impedance matching according to claim 1, characterized in that: The device for enhancing formation energy based on wave impedance matching also includes a ground control unit, and the ground control unit is connected to the armored photoelectric composite cable; The armored optoelectronic composite cable is electrically connected to the wave impedance testing unit, the downhole positioning unit and the continuous shock wave generating unit respectively, so as to control the operation of the wave impedance testing unit, the downhole positioning unit and the continuous shock wave generating unit through the ground control unit.

3. The device for enhancing formation energy based on wave impedance matching according to claim 1, characterized in that: The downhole positioning unit comprises: A positioning ring sleeve is arranged on the underground fixed detection body; The camera in the well is fixed to the positioning ring sleeve and is used to photograph the inner wall of the well to capture the position of the perforation hole.

4. The device for enhancing formation energy based on wave impedance matching according to claim 1, characterized in that: The continuous shock wave generating unit comprises a discharge electrode, which is arranged on a fixed detection body downhole, so as to generate a continuous pulse shock wave by applying a voltage to the discharge electrode to form a discharge.

5. The device for enhancing formation energy based on wave impedance matching according to claim 4, characterized in that: The continuous shock wave generating unit also includes an in-hole energy unit, and the in-hole energy unit includes a capacitor, and the capacitor is fixedly arranged on a fixed detection body downhole, and the capacitor is electrically connected to the armored optoelectronic composite cable; The capacitor is electrically connected to the discharge upper portion of the discharge electrode, and the discharge lower portion of the discharge electrode is grounded.

6. The device for enhancing formation energy based on wave impedance matching according to claim 1, characterized in that: The wave impedance testing unit comprises: A first ultrasonic transmitter is arranged on the underground fixed detection body, and a first receiver is arranged at a position of the underground fixed detection body corresponding to the first ultrasonic transmitter; A second ultrasonic transmitter is arranged on the underground fixed detection body, and a second receiver is arranged at a position of the underground fixed detection body corresponding to the second ultrasonic transmitter.

7. The device for enhancing formation energy based on wave impedance matching according to claim 1, characterized in that: The device for enhancing formation energy based on wave impedance matching also includes: A winding roller is fixed to the ground outside the well through a fixing bracket, and the armored photoelectric composite cable is wound on the winding roller; The mounting bracket is arranged at the wellhead, and a fixed pulley is fixedly arranged on the mounting bracket. One end of the armored optoelectronic composite cable is connected to the underground fixed detection body through the fixed pulley.

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