Underground hydraulic fracturing information real-time monitoring device based on coiled tubing

Abstract

The utility model discloses an underground hydraulic fracturing information real-time monitoring device based on a continuous oil pipe, which comprises a continuous oil pipe assembly, and a straight optical unit, a straight strain optical unit, a power supply control cable and a hydraulic control pipeline are arranged on the outer side wall of the continuous oil pipe assembly. The outer side wall of the continuous oil pipe assembly is coated and wound with a high-temperature-resistant flexible composite material; according to the utility model, the function of monitoring fluid noise, temperature, pressure and strain in an underground fractured well section in real time in the fracturing operation process is realized, and the function of performing power supply control and hydraulic control in the process of performing hydraulic fracturing transformation by externally connecting underground matched tool equipment is also realized; the power supply control cable and the hydraulic control pipeline are laid in an embedded mode, so that control over external underground matched tool equipment is more reliable, the operation efficiency of hydraulic fracturing operation is improved, the safety of the hydraulic fracturing operation is guaranteed, and the hydraulic control system is suitable for being widely popularized and used.

Description

Technical Field

[0001] The utility model belongs to the technical field of downhole hydraulic fracturing, in particular to a downhole hydraulic fracturing information real-time monitoring device based on a continuous oil pipe. Background Art

[0002] Coiled Tubing is also called flexible tubing, coiled tubing or soft tubing. Compared with conventional tubing connected by threads, coiled tubing is a long tubing that is wound on a reel and straightened and then directly lowered into the well. Coiled tubing operation devices are widely used in oil and gas field well repair, drilling, completion, logging and other operations, playing an increasingly important role in oil and gas field exploration and development. The main components of coiled tubing include coiled tubing injection head, reel, power system, control room and coiled tubing.

[0003] The coiled tubing fracturing technology was developed after the success of the perforation fracturing technology in order to improve some of the processes. At present, the use of coiled tubing for layered fracturing has also begun to be applied. The biggest advantage of the entire operation is that the well repair and construction time is reduced, the output is increased, the environmental pollution is reduced, the investment recovery is rapid, and the construction volume can be reduced. Compared with conventional fracturing technology, the coiled tubing fracturing method can save a lot of operation time, reduce the probability of accidents, and significantly reduce costs.

[0004] At present, laying permanent armored optical cables, optoelectronic composite cables, electric cables and hydraulic pipelines outside continuous oil pipes faces the problems of difficult construction operations, high costs, difficulty in detecting the positions of various cables, and immature downhole avoidance technology, which makes it easy for armored cables to be cut during perforating operations. In addition, because the armored optical cables laid in the casing will affect or interfere with other downhole operations, it is impossible to lay the armored optical cables in the casing for a long time for monitoring operations, and thus the armored optical cables, optoelectronic composite cables, electric cables and hydraulic pipelines laid in the casing can only perform temporary data collection and work. Therefore, it is necessary to design a downhole hydraulic fracturing information real-time monitoring device based on continuous oil pipes. Summary of the invention

[0005] In view of the above situation, in order to solve the current problems faced by laying permanent armored optical cables, optoelectronic composite cables, electric cables and hydraulic pipelines outside the coiled tubing, such as the difficulty in construction operations, high costs, difficulty in detecting the positions of various cables, and immature downhole avoidance technology, which leads to the armored cables being easily cut during perforating operations, and because the armored optical cables laid in the casing will affect or interfere with other downhole operations, it is impossible to lay the armored optical cables in the casing for a long time for monitoring operations, and thus the armored optical cables, optoelectronic composite cables, electric cables and hydraulic pipelines laid in the casing can only perform temporary data collection and work. A new type of downhole hydraulic fracturing information real-time monitoring device based on continuous oil tubing is provided, which effectively realizes the function of real-time monitoring of fluid noise, temperature, pressure and strain in the underground fracturing well section during the fracturing operation, and also realizes the function of power supply control and hydraulic control during the hydraulic fracturing transformation of external downhole supporting tools and equipment. The power supply control cable and hydraulic control pipeline are laid in an embedded manner, making the control of external downhole supporting tools and equipment more reliable, which not only improves the operating efficiency of hydraulic fracturing operations, but also ensures the safety of hydraulic fracturing operations.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a downhole hydraulic fracturing information real-time monitoring device based on a continuous oil pipe, comprising a continuous oil pipe assembly, wherein the outer wall of the continuous oil pipe assembly is provided with a straight light unit, a straight strain light unit, a power supply control cable and a hydraulic control pipeline, and the outer wall of the continuous oil pipe assembly is coated and wound with a high-temperature resistant flexible composite material, and the outer wall of the high-temperature resistant flexible composite material is sleeved with a thin stainless steel sleeve, wherein the straight light unit, the straight strain light unit, the power supply control cable and the hydraulic control pipeline are located in the middle of the high-temperature resistant flexible composite material and the continuous oil pipe assembly, and the high-temperature resistant flexible composite material is located in the middle of the continuous oil pipe assembly and the thin stainless steel sleeve ; The high-temperature resistant flexible composite material is used for secondary fixation between the straight light unit, the straight strain light unit, the power supply control cable and the hydraulic control pipeline and the continuous oil pipe assembly, and the thin stainless steel sleeve is used to protect the high-temperature resistant flexible composite material and the straight light unit, the straight strain light unit, the power supply control cable and the hydraulic control pipeline inside it; the straight light unit is used to collect DAS signals, DTS signals and DPS signals during downhole hydraulic fracturing, the straight strain light unit is used to collect DSS signals during downhole hydraulic fracturing, and the power supply control cable and the hydraulic control pipeline are used to respectively perform electrical control and hydraulic control on external downhole supporting tools and equipment during downhole hydraulic fracturing.

[0007] The aforementioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil tubing, the continuous oil tubing assembly includes a continuous oil tubing body, the outer wall of the continuous oil tubing body contains an oil tubing weld before being welded into a pipe, and the outer wall of the continuous oil tubing body is provided with a first groove, a second groove and a third groove, wherein the second groove and the third groove are evenly distributed in the middle position between the first groove and the oil tubing weld.

[0008] In the above-mentioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil pipe, the outer wall of the straight light unit and the inner wall of the oil pipe weld are wedged with each other, and the straight light unit is clamped on the inner wall of the oil pipe weld and connected with the continuous oil pipe body as the continuous oil pipe body is welded.

[0009] The aforementioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil tubing, the straight optical unit includes a straight single-mode optical fiber, a straight multi-mode optical fiber and a straight continuous grating optical fiber, the straight single-mode optical fiber is connected to the signal input end of an external DAS signal input module, the straight multi-mode optical fiber is connected to the signal input end of an external DTS signal input module, and the straight continuous grating optical fiber is connected to the signal input end of an external DPS signal input module, wherein the straight single-mode optical fiber, the straight multi-mode optical fiber and the straight continuous grating optical fiber are all made of high-temperature resistant and hydrogen-damage-resistant optical fiber.

[0010] In the above-mentioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil pipe, the outer side wall of the straight strain light unit and the inner side wall of the first groove are wedged with each other, and the first groove and the oil pipe weld are symmetrical with each other.

[0011] In the aforementioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil tubing, a straight single-mode strain optical fiber is arranged inside the straight strain optical unit, and the straight single-mode strain optical fiber is connected to the signal input end of the external DSS signal input module, wherein the straight single-mode strain optical fiber is made by extruding a high-temperature resistant and high-strength flexible composite material on the outer wall of the straight single-mode optical fiber and increasing the diameter of the straight single-mode optical fiber to 1mm to 2mm, and then placing it inside a stainless steel pipe with an inner diameter of 1mm to 2mm, and the straight single-mode strain optical fiber is used to sense the stress and strain inside and outside the stainless steel pipe.

[0012] In the aforementioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil tubing, the outer wall of the power supply control cable and the inner wall of the second groove are wedged together, and the outer wall of the hydraulic control pipeline and the inner wall of the third groove are wedged together.

[0013] In the aforementioned downhole hydraulic fracturing information real-time monitoring device based on continuous oil tubing, the number of the power supply control cables and the hydraulic control pipelines are both two, and the two power supply control cables and hydraulic control pipelines are symmetrically distributed on the outer side wall of the continuous oil tubing body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The straight single-mode strain optical fiber arranged on the outer wall of the continuous tubing body can monitor and measure the DSS signal on both sides of the inner and outer sides of the continuous tubing body in real time and output it. The straight single-mode optical fiber, straight multi-mode optical fiber and straight continuous grating optical fiber arranged on the outer wall of the continuous tubing body can respectively monitor and measure the DAS signal, DTS signal and DPS signal on both sides of the inner and outer sides of the continuous tubing body in real time and output it. In this way, the straight optical unit and the straight strain optical unit can monitor the fluid noise, temperature, pressure and strain in the underground fracturing well section in real time during the fracturing operation, effectively realizing the function of the device to monitor the fluid noise, temperature, pressure and strain in the underground fracturing well section in real time during the fracturing operation, which not only improves the operating efficiency of the hydraulic fracturing operation, but also ensures the safety of the hydraulic fracturing operation.

[0016] (2) By connecting the electric switch and hydraulic switch inside the external downhole supporting tool equipment to the power supply control cable and the hydraulic control pipeline respectively, and then pushing the external downhole supporting tool equipment to the well section where hydraulic fracturing transformation is required through the continuous oil pipe body, the electric switch inside the external downhole supporting tool equipment can be controlled by the power supply control cable, and at the same time, the hydraulic switch inside the external downhole supporting tool equipment can be controlled by the hydraulic control pipeline, and then the hydraulic fracturing operation can be performed on the well section where hydraulic fracturing transformation is required through the external downhole supporting tool equipment, effectively realizing that the device has the function of power supply control and hydraulic control during the hydraulic fracturing transformation of the external downhole supporting tool equipment, and the power supply control cable and the hydraulic control pipeline are laid in an embedded manner, so that the control of the external downhole supporting tool equipment is more reliable, not only the control speed is faster, but also the service life of the power supply control cable and the hydraulic control pipeline is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall outer surface structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the coiled tubing assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a straight light unit of the utility model;

[0021] Figure 4It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0022] In the figure: 1. Continuous tubing assembly; 101. Continuous tubing body; 102. Tubing weld; 103. First groove; 104. Second groove; 105. Third groove; 2. Straight optical unit; 201. Straight single-mode optical fiber; 202. Straight multi-mode optical fiber; 203. Straight continuous grating optical fiber; 3. Straight strain optical unit; 4. Power supply control cable; 5. Hydraulic control pipeline; 6. High temperature resistant flexible composite material; 7. Thin stainless steel sleeve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0024] Depend on Figures 1 to 4 The utility model provides a downhole hydraulic fracturing information real-time monitoring device based on a continuous oil pipe, comprising a continuous oil pipe assembly 1, wherein the outer wall of the continuous oil pipe assembly 1 is provided with a straight light unit 2, a straight strain light unit 3, a power supply control cable 4 and a hydraulic control pipeline 5, and the outer wall of the continuous oil pipe assembly 1 is coated and wound with a high-temperature resistant flexible composite material 6, and the outer wall of the high-temperature resistant flexible composite material 6 is sleeved with a thin stainless steel sleeve 7, wherein the straight light unit 2, the straight strain light unit 3, the power supply control cable 4 and the hydraulic control pipeline 5 are located in the middle of the high-temperature resistant flexible composite material 6 and the continuous oil pipe assembly 1, and the high-temperature resistant flexible composite material 6 is located in the middle of the continuous oil pipe assembly 1 and the thin stainless steel sleeve 7; the high-temperature resistant flexible composite material 6 is used to connect the straight light unit 2, the straight strain light unit 3, the power supply control cable 4 and the hydraulic control pipeline 5 The hydraulic control pipeline 5 is fixed to the coiled tubing assembly 1 for secondary fixation, and the thin stainless steel sleeve 7 is used to protect the high-temperature resistant flexible composite material 6 and the straight light unit 2, the straight strain light unit 3, the power supply control cable 4 and the hydraulic control pipeline 5 inside; the straight light unit 2 is used to collect DAS signals, DTS signals and DPS signals during the downhole hydraulic fracturing process, the straight strain light unit 3 is used to collect DSS signals during the downhole hydraulic fracturing process, the power supply control cable 4 and the hydraulic control pipeline 5 are used to respectively perform electrical control and hydraulic control on external downhole supporting tools and equipment during the downhole hydraulic fracturing process, wherein the DAS signal is a distributed acoustic sensor signal, the DTS signal is a distributed temperature sensor signal, the DSS signal is a distributed stress sensor signal and the DPS signal is a distributed pressure sensor signal.

[0025] Specifically, the coiled tubing assembly 1 includes a coiled tubing body 101. Before being welded into a pipe, the outer wall of the coiled tubing body 101 contains a tubing weld 102, and the outer wall of the coiled tubing body 101 is provided with a first groove 103, a second groove 104 and a third groove 105, wherein the second groove 104 and the third groove 105 are evenly distributed between the first groove 103 and the tubing weld 102. Through the coiled tubing body 101, external downhole supporting tools and equipment can be pushed to the well section where hydraulic fracturing transformation is required.

[0026] Specifically, the outer wall of the straight light unit 2 and the inner wall of the tubing weld 102 are wedged with each other, and the straight light unit 2 is clamped on the inner wall of the tubing weld 102 and connected to the tubing body 101 as the tubing body 101 is welded, and the position between the straight light unit 2 and the tubing body 101 can be limited by the tubing weld 102.

[0027] Specifically, the straight optical unit 2 includes a straight single-mode optical fiber 201, a straight multimode optical fiber 202 and a straight continuous grating optical fiber 203, wherein the straight single-mode optical fiber 201 is connected to the signal input end of an external DAS signal input module, the straight multimode optical fiber 202 is connected to the signal input end of an external DTS signal input module, and the straight continuous grating optical fiber 203 is connected to the signal input end of an external DPS signal input module, wherein the straight single-mode optical fiber 201, the straight multimode optical fiber 202 and the straight continuous grating optical fiber 203 are all made of high-temperature resistant and hydrogen-damage-resistant optical fiber. Since the straight single-mode optical fiber 201, the straight multimode optical fiber 202 and the straight continuous grating optical fiber 203 are all made of high-temperature resistant and hydrogen-damage-resistant optical fiber, they have the function of being resistant to high temperature and hydrogen-damage, thereby extending the service life of the straight single-mode optical fiber 201, the straight multimode optical fiber 202 and the straight continuous grating optical fiber 203, and the straight continuous grating optical fiber 203 can also be a straight microstructure optical fiber.

[0028] Specifically, the outer wall of the straight strain light unit 3 and the inner wall of the first groove 103 are wedged with each other, and the first groove 103 and the oil pipe weld 102 are symmetrical to each other, and the position between the straight strain light unit 3 and the coiled tubing body 101 can be limited by the first groove 103.

[0029] Specifically, a straight single-mode strain optical fiber is arranged inside the straight strain optical unit 3, and the straight single-mode strain optical fiber is connected to the signal input end of the external DSS signal input module, wherein the straight single-mode strain optical fiber is made by extruding a high-temperature resistant and high-strength flexible composite material on the outer wall of the straight single-mode optical fiber 201 and increasing the diameter of the straight single-mode optical fiber 201 to 1mm to 2mm, and then placing it inside a stainless steel pipe with an inner diameter of 1mm to 2mm, and the straight single-mode strain optical fiber is used to sense the stress and strain inside and outside the stainless steel pipe, and the straight single-mode strain optical fiber arranged on the outer wall of the continuous tubing body 101 can monitor and measure the DSS signals on both sides of the continuous tubing body 101 in real time and output them.

[0030] Specifically, the outer wall of the power supply control cable 4 and the inner wall of the second groove 104 are wedged together, and the outer wall of the hydraulic control pipeline 5 and the inner wall of the third groove 105 are wedged together. By laying the power supply control cable 4 and the hydraulic control pipeline 5 in an embedded manner, the control of external downhole supporting tools and equipment is more reliable.

[0031] Specifically, the number of the power supply control cable 4 and the hydraulic control pipeline 5 are both two, and the two power supply control cables 4 and the hydraulic control pipeline 5 are symmetrically distributed on the outer wall of the continuous oil pipe body 101. The power supply control cable 4 can control the electric switch inside the external downhole supporting tool equipment, and at the same time, the hydraulic control pipeline 5 can control the hydraulic switch inside the external downhole supporting tool equipment.

[0032] When in use, firstly, the electric switch and the hydraulic switch inside the external downhole supporting tool equipment are connected to the power supply control cable 4 and the hydraulic control pipeline 5 respectively, and then the external downhole supporting tool equipment is pushed to the well section where hydraulic fracturing transformation is required through the continuous oil pipe body 101, and then the electric switch inside the external downhole supporting tool equipment can be controlled by the power supply control cable 4, and at the same time, the hydraulic switch inside the external downhole supporting tool equipment can be controlled by the hydraulic control pipeline 5, and then the hydraulic fracturing operation can be performed on the well section where hydraulic fracturing transformation is required through the external downhole supporting tool equipment, which effectively realizes that the device has the functions of power supply control and hydraulic control during the hydraulic fracturing transformation of the external downhole supporting tool equipment, and the power supply control cable 4 and the hydraulic control pipeline 5 are laid in an embedded manner. Line 5 makes the control of external downhole supporting tools and equipment more reliable, and then the straight single-mode strain optical fiber arranged on the outer wall of the continuous tubing body 101 can monitor and measure the DSS signals on both sides of the inside and outside of the continuous tubing body 101 in real time and output them, and then the straight single-mode optical fiber 201, the straight multi-mode optical fiber 202 and the straight continuous grating optical fiber 203 arranged on the outer wall of the continuous tubing body 101 can respectively monitor and measure the DAS signals, DTS signals and DPS signals on both sides of the inside and outside of the continuous tubing body 101 in real time and output them, so that the straight optical unit 2 and the straight strain optical unit 3 can monitor the fluid noise, temperature, pressure and strain in the underground fracturing well section in real time during the fracturing operation, effectively realizing the function of the device to monitor the fluid noise, temperature, pressure and strain in the underground fracturing well section in real time during the fracturing operation.

[0033] The straight light unit 2, the straight strain light unit 3, the power supply control cable 4 and the hydraulic control pipeline 5 are all finished products produced by existing technologies and can be purchased on the market; the components are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A downhole hydraulic fracturing information real-time monitoring device based on a coiled tubing, comprising a coiled tubing assembly (1), characterized in that: The outer wall of the coiled tubing assembly (1) is provided with a straight light unit (2), a straight strain light unit (3), a power supply control cable (4) and a hydraulic control pipeline (5), and the outer wall of the coiled tubing assembly (1) is coated with a high-temperature resistant flexible composite material (6), and the outer wall of the high-temperature resistant flexible composite material (6) is sleeved with a thin stainless steel sleeve (7), wherein the straight light unit (2), the straight strain light unit (3), the power supply control cable (4) and the hydraulic control pipeline (5) are located in the middle of the high-temperature resistant flexible composite material (6) and the coiled tubing assembly (1), and the high-temperature resistant flexible composite material (6) is located in the middle of the coiled tubing assembly (1) and the thin stainless steel sleeve (7); The high temperature resistant flexible composite material (6) is used to perform secondary fixation between the straight light unit (2), the straight strain light unit (3), the power supply control cable (4) and the hydraulic control pipeline (5) and the coiled tubing assembly (1); the thin stainless steel sleeve (7) is used to protect the high temperature resistant flexible composite material (6) and the straight light unit (2), the straight strain light unit (3), the power supply control cable (4) and the hydraulic control pipeline (5) therein; The straight optical unit (2) is used to collect DAS signals, DTS signals and DPS signals during the downhole hydraulic fracturing process; the straight strain optical unit (3) is used to collect DSS signals during the downhole hydraulic fracturing process; and the power supply control cable (4) and the hydraulic control pipeline (5) are used to respectively perform electrical control and hydraulic control on external downhole supporting tool equipment during the downhole hydraulic fracturing process.

2. The downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 1 is characterized in that: The coiled tubing assembly (1) comprises a coiled tubing body (101), the outer wall of the coiled tubing body (101) comprising a tubing weld (102) before being welded into a pipe, and the outer wall of the coiled tubing body (101) is provided with a first groove (103), a second groove (104) and a third groove (105), wherein the second groove (104) and the third groove (105) are evenly distributed in the middle between the first groove (103) and the tubing weld (102).

3. The downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 2 is characterized in that: The outer wall of the straight light unit (2) and the inner wall of the oil pipe weld (102) are wedged together, and the straight light unit (2) is clamped on the inner wall of the oil pipe weld (102) and connected to the continuous oil pipe body (101) as the continuous oil pipe body (101) is welded.

4. The downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 3 is characterized in that: The straight optical unit (2) comprises a straight single-mode optical fiber (201), a straight multi-mode optical fiber (202) and a straight continuous grating optical fiber (203); the straight single-mode optical fiber (201) is connected to a signal input end of an external DAS signal input module, the straight multi-mode optical fiber (202) is connected to a signal input end of an external DTS signal input module, and the straight continuous grating optical fiber (203) is connected to a signal input end of an external DPS signal input module; the straight single-mode optical fiber (201), the straight multi-mode optical fiber (202) and the straight continuous grating optical fiber (203) are all made of high temperature resistant and hydrogen damage resistant optical fibers.

5. The downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 2, characterized in that: The outer side wall of the straight strain light unit (3) and the inner side wall of the first groove (103) are wedged with each other, and the first groove (103) and the oil pipe weld (102) are symmetrical with each other.

6. A downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 5, characterized in that: A straight single-mode strain optical fiber is arranged inside the straight strain optical unit (3), and the straight single-mode strain optical fiber is connected to the signal input end of an external DSS signal input module, wherein the straight single-mode strain optical fiber is made by extruding a high-temperature resistant and high-strength flexible composite material on the outer wall of the straight single-mode optical fiber (201) and increasing the diameter of the straight single-mode optical fiber (201) to 1 mm to 2 mm, and then placing it inside a stainless steel tube with an inner diameter of 1 mm to 2 mm, and the straight single-mode strain optical fiber is used to sense stress and strain inside and outside the stainless steel tube.

7. The downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 2, characterized in that: The outer wall of the power supply control cable (4) and the inner wall of the second groove (104) are wedged together, and the outer wall of the hydraulic control pipeline (5) and the inner wall of the third groove (105) are wedged together.

8. The downhole hydraulic fracturing information real-time monitoring device based on coiled tubing according to claim 7, characterized in that: The number of the power supply control cables (4) and the number of the hydraulic control pipelines (5) are both two, and the two power supply control cables (4) and the two hydraulic control pipelines (5) are symmetrically distributed on the outer side wall of the coiled tubing body (101).

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