A method and device for predicting carbon dioxide storage potential based on seismic exploration technology

Abstract

The application discloses a kind of based on the carbon dioxide storage potential prediction method and equipment of seismic exploration technology, comprising: positioning ring surface, monitoring device, lifting slide rail, connecting pipeline, conveying pipeline, fixing device, drill bit assembly, the positioning ring surface is fixed on the top of well drilling in ground surface;The monitoring device is fixed in the outer ring of positioning ring surface;The lifting slide rail is fixed on positioning ring surface, located in the side of well drilling;The connecting pipeline is fixed on lifting slide rail, one end is connected with external carbon dioxide collection device;The conveying pipeline corresponds with well drilling, top is fixedly connected with connecting pipeline;The fixing device is fixed in the middle of conveying pipeline;The drill bit assembly is fixed in the bottom of conveying pipeline.Compared with prior art, the application provides strong technical support for the monitoring and management of carbon dioxide storage reservoir by seismic monitoring technology, effectively improves the safety and effectiveness of carbon dioxide storage reservoir technology.

Description

Technical Field

[0001] This invention relates to the field of carbon dioxide geological storage technology, and more specifically, to a method and device for predicting carbon dioxide storage potential based on seismic exploration technology. Background Technology

[0002] Carbon dioxide sequestration (CO2) technology can effectively address the current problem of excessive carbon emissions. However, its interaction with the formation after injection can cause formation deformation, which can have a certain impact on the ecological environment. To maximize the geological sequestration of CO2 while ensuring no impact on the ecological environment, dynamic monitoring of CO2 storage and formation changes is necessary to predict formation storage capacity. Current technologies struggle to monitor formation storage in real time. During CO2 transport, pipelines are easily affected by external factors, leading to changes in pipeline and well seal. Furthermore, a single pipeline cannot guarantee rapid CO2 dispersion within the formation. With the application of 4D seismic monitoring technology, real-time monitoring of formation deformation is possible. How to leverage 4D seismic monitoring technology to provide strong technical support for the monitoring and management of CO2 sequestration layers has become a major research direction. Therefore, it is necessary to provide a method and equipment for predicting CO2 sequestration potential based on seismic exploration technology to address the problems mentioned in the background. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: a method and apparatus for predicting carbon dioxide storage potential based on seismic exploration technology, comprising:

[0004] Positioning toroidal surface, fixed to the ground surface, at the top of the well;

[0005] The monitoring device is fixed on the outer ring of the positioning ring surface;

[0006] The lifting slide rail is fixed on the positioning ring surface and located on the side of the well.

[0007] The connecting pipe is fixed on the lifting slide rail, and one end is connected to the external carbon dioxide collection device.

[0008] The delivery pipeline, corresponding to the drilling well, is fixedly connected to the connecting pipeline at the top;

[0009] A fixing device, fixed in the middle of the conveying pipeline;

[0010] The drill bit assembly is fixed to the bottom of the delivery pipeline.

[0011] Furthermore, preferably, the monitoring device includes:

[0012] The connecting ring is fixed to the outer ring of the positioning ring surface;

[0013] The monitors are arranged in a ring and are fixed on the connecting ring.

[0014] The statistical control unit is fixed to the side of the connecting ring. In other words, when seismic waves generated by an artificial seismic source propagate underground, they are reflected or refracted back to the surface when they encounter interfaces with different elasticities. Monitors collect and record these reflected seismic waves, which are then aggregated and analyzed at the statistical control unit. Since carbon dioxide injected into the strata interacts with them and causes strata deformation, the potential for carbon dioxide sequestration in the soil is predicted by analyzing the seismic wave rebound data.

[0015] Furthermore, preferably, the lifting slide rail includes:

[0016] The positioning track is vertically set and fixed to the positioning ring surface;

[0017] The slider is slidably mounted on the positioning rail and fixedly connected to the connecting pipe. The positioning rail stabilizes the position of the equipment, maintaining a relatively fixed position between the equipment and the drilling well. With the assistance of the slider, the equipment is lowered vertically.

[0018] Furthermore, preferably, the conveying pipeline includes:

[0019] The top cover is fixedly connected to the connecting pipe;

[0020] The tube body is fixedly connected to the top cover at the top and to the fixing device in the middle.

[0021] Bottom cover, connecting pipe body and drill bit assembly;

[0022] The moving piston is slidably positioned inside the tube.

[0023] The inner conveying tube is slidably disposed inside the moving piston, and its bottom is fixedly connected to the bottom cover. The length of the inner conveying tube is longer than the length of the moving piston.

[0024] A compression spring, fitted onto the inner delivery tube, connects the moving piston and the bottom cover. Initially, due to the compression spring, the top of the moving piston is higher than the top of the inner delivery tube, meaning the inner delivery tube is sealed. As carbon dioxide is continuously injected into the tube through the connecting pipe, the pressure in the upper part of the tube gradually increases. Under this pressure, the moving piston moves downwards, compressing the compression spring. Simultaneously, the inner delivery tube leaks out, and carbon dioxide enters the storage layer through the inner delivery tube. Based on feedback from the monitoring device, when the carbon dioxide level in the storage layer reaches its limit, injection stops. At this point, the compression spring rebounds and resets, causing the moving piston to move upwards, sealing the inner delivery tube to prevent carbon dioxide leakage from the storage layer.

[0025] Furthermore, preferably, the movable piston comprises:

[0026] Two piston heads are distributed in opposite directions and are slidably connected to the inner wall of the tube. The lower piston head is fixedly connected to a compression spring.

[0027] The toothed shaft is a shaft with toothed channels on both sides, and its two ends are fixedly connected to the piston head. When carbon dioxide is input, the upper piston head moves the toothed shaft downward under pressure, which in turn compresses the compression spring. When delivery is initiated, the compression spring rebounds and pushes the piston head back to its original position.

[0028] Furthermore, as a preferred embodiment, the inner conveying tube has an inlet on its top side and an outlet on its bottom side, with multiple outlets arranged in a ring facing the perimeter of the bottom cover. When the moving piston moves downward, the inlet at the top of the inner conveying tube leaks out, allowing carbon dioxide to enter the inner conveying tube through the inlet and exit through the outlet at the bottom, discharging towards the perimeter of the bottom cover, thus rapidly dispersing the carbon dioxide within the storage layer.

[0029] Furthermore, preferably, the fixing device includes:

[0030] The housing is fixed in the middle of the tube;

[0031] The threaded sleeves are arranged in pairs, corresponding to the toothed grooves on the toothed shaft body, and fixed on the fixed housing.

[0032] The drill rod is threadedly connected to the threaded sleeve shaft;

[0033] The central shaft connects the drill rods on both sides and is slidably connected to the drill rods, allowing them to rotate synchronously.

[0034] The connecting gear, fixed in the middle of the central shaft, meshes with the toothed track on the toothed track shaft. When the moving piston moves downward under the pressure of carbon dioxide, the toothed track shaft moves downward and simultaneously drives the connecting gear to rotate, which in turn drives the drill pipes on both sides to rotate through the central shaft. Under the action of the threaded sleeve shaft, the drill pipes on both sides move outward and are fixed on the inner wall of the well, thus fixing the position of the equipment. When the moving piston moves upward and resets under the action of the compression spring, the toothed track shaft moves upward and simultaneously drives the connecting gear to rotate, which in turn drives the drill pipes on both sides to retract and reset through the central shaft.

[0035] Furthermore, preferably, the fixed housing is provided with multiple annularly distributed support rods on its exterior. The upper support rod connects the top cover and the top of the fixed housing, and the lower support rod connects the bottom cover and the bottom of the fixed housing. A slidably connected sealing capsule is provided on the lower support rod, and the sealing capsule is always located at the connection between the well and the reservoir. When the sealing capsule moves to the bottom of the well and approaches the reservoir, it expands and becomes lodged inside the well. As the delivery pipeline continues to descend, the sealing capsule slides on the support rods. Under the action of the sealing capsule, the gap between the delivery pipeline and the well is sealed, effectively preventing carbon dioxide leakage and improving the accuracy of prediction.

[0036] Furthermore, preferably, the drill bit assembly consists of a drive mechanism fixed to the bottom of the bottom cover and a main drill bit fixed to the bottom of the drive mechanism. When the lifting slide rail moves the equipment into the well, the drive mechanism drives the main drill bit to rotate, cleaning the inside of the well and effectively preventing damage to the equipment caused by blockages inside the well or residue on the sidewalls, thus affecting the normal operation of the equipment.

[0037] A method for predicting carbon dioxide storage potential based on seismic exploration technology includes the following steps:

[0038] S1: First, driven by the lifting slide rail, the equipment passes through the drill bit assembly and enters the storage layer. When the sealing capsule moves to the bottom of the drill and is close to the storage layer, the sealing capsule expands and gets stuck in the drill, sealing the gap between the drill and the equipment. During subsequent movement, the sealing capsule slides on the support rod.

[0039] S2: Then, carbon dioxide is injected into the delivery pipe through the external carbon dioxide collection device via the connecting pipe. Under the continuous delivery of carbon dioxide, the pressure at the top of the pipe increases, which in turn drives the moving piston to move down and compress the compression spring. At the same time, the toothed shaft drives the connecting gear to rotate, which in turn drives the drill rods on both sides of the fixing device to extend out and be fixed on the inner wall of the well. The top inlet of the delivery inner pipe leaks out.

[0040] S3: Under the continuous supply of carbon dioxide, after passing through the inner pipe, the carbon dioxide is discharged to the periphery of the bottom cover through the bottom outlet, so that the carbon dioxide is rapidly dispersed in the storage layer.

[0041] S4: During the carbon dioxide injection process, seismic waves generated by artificial seismic sources propagate underground. The reflected seismic waves are collected and recorded by the monitors in the monitoring device and fed back to the statistical control center.

[0042] S5: Under the real-time analysis of the overall statistical control, the geological conditions of the reservoir are monitored, and the carbon dioxide sequestration potential of the reservoir is predicted based on the formation deformation.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] In this invention, the application of seismic monitoring technology effectively improves the safety and effectiveness of carbon dioxide storage layer technology. Under the action of the fixing device, the delivery pipeline is fixed to the inner wall of the well, increasing the stability of the equipment. With the cooperation of the delivery inner pipe and the moving piston, carbon dioxide is delivered to a fixed point. When adjusting the position, the sealing of the equipment is ensured. The setting of multiple delivery side ports effectively enables the rapid dispersion of carbon dioxide in the storage layer. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of the equipment;

[0046] Figure 2 This is a side view of the device;

[0047] Figure 3 A schematic diagram of the internal structure of the conveying pipeline and fixed device;

[0048] Figure 4 Detailed diagrams of the pipeline and stationary installations;

[0049] In the diagram: 1. Positioning ring; 2. Monitoring device; 3. Lifting slide rail; 4. Connecting pipe; 5. Conveying pipe; 6. Fixing device; 7. Drill bit assembly; 8. Drilling well; 9. Storage layer; 21. Connecting ring; 22. Monitor; 23. Statistical control; 31. Positioning track; 32. Slider; 51. Top cover; 52. Pipe body; 53. Bottom cover; 54. Moving piston; 55. Conveying inner pipe; 56. Compression spring; 61. Fixed housing; 62. Threaded sleeve shaft; 63. Drill rod; 64. Central shaft; 65. Connecting gear; 71. Drive mechanism; 72. Main drill bit; 541. Piston head; 542. Toothed shaft body; 551. Input port; 552. Output side port; 611. Support rod; 612. Enclosed capsule. Detailed Implementation

[0050] Please see Figures 1-4 In this embodiment of the invention, a method and apparatus for predicting carbon dioxide sequestration potential based on seismic exploration technology includes:

[0051] Positioning ring 1, fixed to the ground surface, at the top of borehole 8;

[0052] Monitoring device 2 is fixed on the outer ring of positioning ring 1;

[0053] The lifting slide rail 3 is fixed on the positioning ring surface 1 and located on the side of the drilling rig 8;

[0054] Connecting pipe 4 is fixed on lifting slide rail 3, with one end connected to an external carbon dioxide collection device;

[0055] The delivery pipeline 5 corresponds to the drilling well 8, and its top is fixedly connected to the connecting pipeline 4.

[0056] Fixing device 6 is fixed in the middle of the conveying pipeline 5;

[0057] The drill bit assembly 7 is fixed to the bottom of the delivery pipe 5.

[0058] In this embodiment, the monitoring device 2 includes:

[0059] Connecting ring 21 is fixed to the outer ring of positioning ring surface 1;

[0060] Multiple monitors 22 are arranged in a ring and fixed on the connecting ring 21;

[0061] The statistical control unit 23 is fixed to the side of the connecting ring 21. That is, under the influence of an artificial seismic source, the generated seismic waves propagate underground. When they encounter interfaces with different elasticities, they are reflected or refracted back to the surface. The monitor 22 collects and records the reflected seismic waves, which are then aggregated in the statistical control unit 23 for analysis. Since carbon dioxide injected into the strata interacts with the strata and causes strata deformation, the potential for carbon dioxide sequestration in the soil is predicted by analyzing the seismic wave rebound data.

[0062] In this embodiment, the lifting slide rail 3 includes:

[0063] The positioning track 31 is vertically set and fixed on the positioning ring surface 1;

[0064] The slider 32 is slidably mounted on the positioning rail 31 and fixedly connected to the connecting pipe 4. Under the action of the positioning rail 31, the position of the equipment is fixed, so that the equipment and the drilling rig 8 are kept in a relatively fixed position, and the equipment is lowered vertically with the cooperation of the slider 32.

[0065] In this embodiment, the conveying pipeline 5 includes:

[0066] Top cover 51 is fixedly connected to connecting pipe 4;

[0067] The tube body 52 is fixedly connected to the top cover 51 at the top and to the fixing device 6 in the middle.

[0068] Bottom cover 53, connecting pipe body 52 and drill bit assembly 7;

[0069] The movable piston 54 is slidably disposed inside the tube 52;

[0070] The inner conveying tube 55 is slidably disposed inside the movable piston 54, and its bottom is fixedly connected to the bottom cover 53. The length of the inner conveying tube 55 is longer than the length of the movable piston 54.

[0071] A compression spring 56 is fitted onto the inner delivery tube 55, connecting the moving piston 54 and the bottom cover 53. Initially, due to the restriction of the compression spring 56, the top of the moving piston 54 is higher than the top of the inner delivery tube 55, meaning the inner delivery tube 55 is closed. When carbon dioxide is continuously injected into the tube body 52 through the connecting pipe 4, the pressure in the upper part of the tube body 52 gradually increases. Under this pressure, the moving piston 54 moves downwards, compressing the compression spring 56. Simultaneously, the inner delivery tube 55 leaks out, and carbon dioxide enters the storage layer 9 through the inner delivery tube 55. Based on feedback from the monitoring device 2, when the carbon dioxide in the storage layer 9 reaches its limit, the injection stops. At this point, the compression spring 56 rebounds and resets, causing the moving piston 54 to move upwards, sealing the inner delivery tube 55 to prevent carbon dioxide leakage from the storage layer 9.

[0072] In this embodiment, the movable piston 54 includes:

[0073] Two piston heads 541 are provided in a split configuration and are slidably connected to the inner wall of the tube body 52. ​​The lower piston head 541 is fixedly connected to the compression spring 56.

[0074] The toothed shaft 542 is a shaft with toothed channels on both sides, and its two ends are fixedly connected to the piston head 541. When carbon dioxide is input, the upper piston head 541 moves the toothed shaft 542 downward under pressure, and then the lower piston head 541 compresses the compression spring 56. When delivery is initiated, the compression spring 56 rebounds and pushes the piston head 541 back to its original position.

[0075] In this embodiment, the top side of the inner conveying tube 55 is provided with an inlet 551, and the bottom side is provided with an outlet 552. Multiple outlets 552 are arranged in a ring, facing the perimeter of the bottom cover 53. When the moving piston 54 moves downward, the inlet 551 at the top of the inner conveying tube 55 leaks out, allowing carbon dioxide to enter the inner conveying tube 55 through the inlet 551 and exit through the outlets 552 at the bottom, dispersing it rapidly within the storage layer 9.

[0076] In this embodiment, the fixing device 6 includes:

[0077] The housing 61 is fixed to the middle of the tube 52;

[0078] The threaded sleeves 62 are arranged in pairs, corresponding to the toothed grooves on the toothed shaft body 542, and are fixed on the fixed housing 61.

[0079] Drill rod 63 is threadedly connected to threaded sleeve shaft 62;

[0080] The central shaft 64 connects the drill rods 63 on both sides and is slidably connected to the drill rods 63, allowing them to rotate synchronously.

[0081] The connecting gear 65 is fixed in the middle of the central shaft 64 and meshes with the toothed track on the toothed track shaft 542. When the moving piston 54 moves downward under the pressure of carbon dioxide, the toothed track shaft 542 moves downward and simultaneously drives the connecting gear 65 to rotate, which in turn drives the drill rods 63 on both sides to rotate through the central shaft 64. Under the action of the threaded sleeve shaft 62, the drill rods 63 on both sides move outward and are fixed on the inner wall of the well 8 to fix the position of the equipment. When the moving piston 54 moves upward and resets under the action of the compression spring 56, the toothed track shaft 542 moves upward and simultaneously drives the connecting gear 65 to rotate, which in turn drives the drill rods 63 on both sides to retract and reset through the central shaft 64.

[0082] In this embodiment, the fixed housing 61 is provided with multiple annularly distributed support rods 611 on its exterior. The upper support rods 611 connect the top cover 51 and the top of the fixed housing 61, while the lower support rods 611 connect the bottom cover 53 and the bottom of the fixed housing 61. A slidably connected sealing capsule 612 is provided on the lower support rod 611. The sealing capsule 612 is always located at the connection between the well 8 and the storage layer 9. When the sealing capsule 612 moves to the bottom of the well 8 and approaches the storage layer 9, it expands and gets stuck inside the well 8. As the delivery pipe 5 continues to move downward, the sealing capsule 612 slides on the support rods 611. Under the action of the sealing capsule 612, the gap between the delivery pipe 5 and the well 8 is sealed, effectively preventing carbon dioxide leakage and improving the accuracy of prediction.

[0083] In this embodiment, the drill bit assembly 7 consists of a drive mechanism 71 fixed to the bottom of the bottom cover 53 and a main drill bit 72 fixed to the bottom of the drive mechanism 71. When the lifting slide rail 3 moves the equipment into the well 8, the drive mechanism 71 drives the main drill bit 72 to rotate, cleaning the inside of the well 8, effectively preventing damage to the equipment caused by blockages inside the well 8 or residues on the sidewalls, thus affecting the normal operation of the equipment.

[0084] This embodiment includes the following steps:

[0085] S1: First, driven by the lifting slide rail 3, the equipment passes through the drill bit assembly 7 through the well 8 and enters the storage layer 9. When the sealing capsule 612 moves to the bottom of the well 8 and is close to the storage layer 9, the sealing capsule 612 expands and gets stuck in the well 8, sealing the gap between the well 8 and the equipment. During the subsequent movement, the sealing capsule 612 slides on the support rod 611.

[0086] S2: Then, carbon dioxide is injected into the delivery pipe 5 through the external carbon dioxide collection device via the connecting pipe 4. Under the continuous delivery of carbon dioxide, the pressure at the top of the pipe 52 increases, which in turn drives the moving piston 54 to move down and compress the compression spring 56. At the same time, the toothed shaft 542 drives the connecting gear 65 to rotate, which in turn drives the drill rods 63 on both sides of the fixing device 6 to extend and be fixed on the inner wall of the well 8, and the top inlet 551 of the delivery inner pipe 55 leaks out.

[0087] S3: Under the continuous supply of carbon dioxide, after passing through the inner supply pipe 55, the carbon dioxide is discharged to the periphery of the bottom cover 53 through the bottom output side port 552, so that the carbon dioxide is rapidly dispersed in the storage layer 9.

[0088] S4: During the carbon dioxide injection process, seismic waves generated by artificial seismic sources propagate underground. The reflected seismic waves are collected and recorded by the monitor 22 in the monitoring device 2 and fed back to the statistical control 23.

[0089] S5: Under the real-time analysis of the statistical control 23, the geological conditions of reservoir 9 are monitored, and the carbon dioxide sequestration potential of reservoir 9 is predicted based on the formation deformation.

[0090] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A carbon dioxide seismic exploration technology-based carbon dioxide sequestration potential prediction device, characterized in that: include: Positioning toroidal surface (1), fixed to the ground surface, top of the well (8); The monitoring device (2) is fixed on the outer ring of the positioning ring surface (1); The lifting slide rail (3) is fixed on the positioning ring surface (1) and located on the side of the drilling (8); Connecting pipe (4) is fixed on lifting slide rail (3), and one end is connected to external carbon dioxide collection device; The delivery pipeline (5) corresponds to the drilling well (8), and its top is fixedly connected to the connecting pipeline (4); The fixing device (6) is fixed in the middle of the conveying pipe (5); The drill bit assembly (7) is fixed to the bottom of the delivery pipe (5); The conveying pipeline (5) includes: The top cover (51) is fixedly connected to the connecting pipe (4); The tube body (52) is fixedly connected to the top cover (51) at the top and to the fixing device (6) in the middle. Bottom cover (53), connecting pipe body (52) and drill bit assembly (7); The movable piston (54) is slidably disposed inside the tube body (52); The inner conveying tube (55) is slidably disposed inside the moving piston (54), and its bottom is fixedly connected to the bottom cover (53). The length of the inner conveying tube (55) is longer than the length of the moving piston (54). A compression spring (56) is fitted onto the inner conveying tube (55) and connects the moving piston (54) and the bottom cover (53); The movable piston (54) includes: Two piston heads (541) are symmetrically distributed on the top and bottom, and are slidably connected to the inner wall of the tube body (52). The lower piston head (541) is fixedly connected to the compression spring (56). The toothed shaft (542) is a shaft with toothed channels on both sides, and its two ends are fixedly connected to the piston head (541); The inner conveying tube (55) has an inlet (551) on its top side and an outlet (552) on its bottom side. Multiple outlets (552) are arranged in a ring around the bottom cover (53). The fixing device (6) includes: The fixed shell (61) is fixed in the middle of the tube body (52); The threaded sleeve shaft (62) is arranged in pairs, corresponding to the toothed groove on the toothed shaft body (542), and fixed on the fixed housing (61); The drill rod (63) is threadedly connected to the threaded sleeve shaft (62); The central shaft (64) connects the drill rods (63) on both sides and is slidably connected to the drill rods (63), allowing them to rotate synchronously. The connecting gear (65) is fixed in the middle of the central shaft (64) and meshes with the toothed shaft (542).

2. The carbon dioxide sequestration potential prediction device based on seismic exploration technology according to claim 1, characterized in that: The monitoring device (2) includes: A connecting ring (21) is fixed to the outer ring of the positioning ring surface (1); The monitors (22) are arranged in a ring and are fixed on the connecting ring (21); The statistical control (23) is fixed to the side of the connecting ring (21).

3. The carbon dioxide sequestration potential prediction device based on seismic exploration technology according to claim 1, characterized in that: The lifting slide rail (3) includes: The positioning track (31) is set vertically and fixed on the positioning ring surface (1); The slider (32) is slidably set on the positioning rail (31) and fixedly connected to the connecting pipe (4).

4. The carbon dioxide sequestration potential prediction device based on seismic exploration technology according to claim 2, characterized in that: The fixed housing (61) is provided with a plurality of annularly distributed support rods (611) on its exterior. The upper support rod (611) connects the top cover (51) and the top of the fixed housing (61), and the lower support rod (611) connects the bottom cover (53) and the bottom of the fixed housing (61). A slidably connected closed capsule (612) is provided on the lower support rod (611). The closed capsule (612) is always located at the connection between the well (8) and the storage layer (9).

5. A carbon dioxide seismic exploration technology-based carbon dioxide sequestration potential prediction device according to claim 1, characterized in that: The drill bit assembly (7) consists of a drive mechanism (71) fixed to the bottom of the bottom cover (53) and a main drill bit (72) fixed to the bottom of the drive mechanism (71).

6. A method for predicting carbon dioxide storage potential based on seismic exploration technology, employing a carbon dioxide storage potential prediction device based on seismic exploration technology as described in claim 4, characterized in that: The steps include the following: S1: First, driven by the lifting slide rail (3), the equipment passes through the drill bit assembly (7) and enters the storage layer (9) through the well (8), and then the sealing capsule (612) seals the gap between the well (8) and the equipment. S2: Then carbon dioxide is injected into the delivery pipe (5) through the external carbon dioxide collection device via the connecting pipe (4), which in turn drives the moving piston (54) to move down, thereby driving the fixing device (6) to be fixed on the inner wall of the well (8), while the delivery inner pipe (55) leaks out. S3: Under the continuous transport of carbon dioxide, carbon dioxide is injected into the storage layer (9) through the bottom cover (53) after passing through the inner transport pipe (55); S4: During the carbon dioxide injection process, seismic waves generated by artificial seismic sources propagate underground, and the reflected seismic waves are collected and recorded by monitoring device (2). S5: Under the real-time analysis of the statistical control (23), the geological conditions of the storage layer (9) are monitored, and the carbon dioxide storage potential is predicted based on the formation deformation.

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