Soluble bridge plug adapter, dynamic well temperature measurement method and soluble bridge plug manufacturing method

Abstract

The present invention discloses a soluble bridge plug adapter, which includes an adapter body and a temperature acquisition and recording device. The temperature acquisition and recording device is fixed on the adapter body. The adapter body is used to connect a setting tool and a soluble bridge plug, and the temperature acquisition and recording device is used to detect and record the ambient temperature where the adapter body is located. The present invention also discloses a dynamic well temperature measurement method and a soluble bridge plug manufacturing method using the above-mentioned soluble bridge plug adapter. The soluble bridge plug adapter, the dynamic well temperature measurement method and the soluble bridge plug manufacturing method provided by the present invention can measure the downhole dynamic ambient temperature when pumping the soluble bridge plug, are convenient to operate and have low cost, provide a basis for the material selection and design of ideal soluble bridge plugs used in this block, and are conducive to designing ideal soluble bridge plugs for use in this block.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas exploitation, and particularly to a soluble bridge plug adapter, a dynamic well temperature measurement method, and a soluble bridge plug manufacturing method. Background Art

[0002] In the field of oil and gas development, in unconventional completion technologies, bridge plugs are often used to perform segmented hydraulic fracturing on formations. The horizontal well segmented fracturing technology has become an important means for reservoir reconstruction and effectively increasing the single well production. The bridge plug is an important tool for segmented fracturing.

[0003] The soluble bridge plug is a new type of bridge plug for temporarily sealing the wellbore. Its advantage lies in that it can dissolve itself under well conditions, thereby reducing or eliminating the plug drilling operation after the fracturing operation, reducing the overall cost and operation risk. When in use, the soluble bridge plug is connected to a tool string including tools such as a setting tool and a perforating gun string through an adapter. The soluble bridge plug is connected to the setting tool through the adapter, and the tool string connected with the soluble bridge plug is sent into the horizontal well by pumping liquid through the wellhead. After the setting tool and the soluble bridge plug connected by the adapter reach the preset setting position, the setting tool is activated to set the soluble bridge plug to achieve the function of sealing the wellbore. After the soluble bridge plug is set, the adapter is disconnected from the soluble bridge plug, and the tool string including the adapter, the setting tool, and the perforating gun string is lifted. After the perforating gun string reaches the designed perforating position, perforation is carried out. After the perforation is completed, the tool string including the adapter, the setting tool, and the perforating gun string is retrieved to the ground through the cable connected to the rear end of the tool string. After the tool string exits the well, a ball is dropped into the wellbore through the wellhead for fracturing to complete one stage of fracturing operation. After this stage of fracturing is completed, the above steps are repeated to carry out the next stage of fracturing operation. After the fracturing operation is completed, as the well temperature rises, the salinity of the liquid in the wellbore increases, causing the soluble bridge plug to dissolve.

[0004] The solubility of the soluble bridge plug is an important index for its performance evaluation. An ideal soluble bridge plug needs to ensure that it does not dissolve from the time of setting completion until the completion of this stage of fracturing operation to maintain the wellbore seal. After the fracturing operation is completed and the well temperature rises, it should dissolve quickly and fully to reduce the wellbore cleaning time and ensure the wellbore cleaning effect. The dissolution rate of the soluble bridge plug is related to the ambient temperature in the well. The higher the ambient temperature in the well, the faster the soluble bridge plug dissolves, and the lower it is, the slower it dissolves. Accurately mastering the dynamic ambient temperature of the soluble bridge plug under the fluid conditions at the setting position in the well is crucial for the material selection and design of the soluble bridge plug.

[0005] The soluble bridge plug is in the downhole fluid environment, and the liquids pumped into the wellbore during pumping and fracturing operations will affect the downhole environmental temperature. Most of the existing technologies measure the downhole static environmental temperature under fluid-free conditions. However, the difference between the downhole static environmental temperature under fluid-free conditions and the downhole dynamic environmental temperature under fluid conditions is large. Based on this data as a reference, the dissolution performance of the designed soluble bridge plug is not good, and it cannot ensure the plugging effect of the soluble bridge plug during pumping and fracturing operations and the dissolution efficiency after fracturing is completed.

[0006] There is an existing method of using downhole real-time fiber optic detection technology to measure the downhole dynamic environmental temperature under fluid conditions. However, this detection method has high costs and complex operations. Since the downhole environmental temperatures of horizontal wells in the same block are not very different at the same depth, and the downhole environmental temperatures of horizontal wells in different blocks vary greatly, in order to ensure the use effect of the soluble bridge plug, the horizontal wells in each block need to be independently designed and an ideal soluble bridge plug corresponding to this block needs to be selected. If the real-time fiber optic detection technology is used, for each horizontal well in each block, a well needs to be selected for real-time fiber optic detection, which will greatly increase the cost and workload. Summary of the Invention

[0007] The present invention aims to provide a soluble bridge plug adapter, a dynamic well temperature measurement method, and a soluble bridge plug manufacturing method, which can measure the downhole dynamic environmental temperature when pumping the soluble bridge plug, are convenient to operate, have low costs, can provide a basis for the material selection and design of ideal soluble bridge plugs used in horizontal wells in this block, and are conducive to designing ideal soluble bridge plugs for horizontal wells in this block.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] The disclosed soluble bridge plug adapter of the present invention includes an adapter body and a temperature acquisition and recording device. The temperature acquisition and recording device is fixed on the adapter body. The adapter body is used to connect a setting tool and a soluble bridge plug, and the temperature acquisition and recording device is used to detect and record the environmental temperature where the adapter body is located.

[0010] The beneficial effect of the present invention is that the adapter body is pumped downhole with the soluble bridge plug and is in the same downhole fluid environment as the soluble bridge plug. The temperature acquisition and recording device on the adapter body can measure and record the downhole dynamic environmental temperature when pumping the soluble bridge plug. After recovering the adapter body, the downhole dynamic environmental temperature can be obtained. It is convenient to operate and has low costs, can provide a basis for the material selection and design of ideal soluble bridge plugs used in horizontal wells in this block, and is conducive to designing ideal soluble bridge plugs for horizontal wells in this block.

[0011] Further, it further includes a mounting pin. The adapter body is provided with a first mounting hole adapted to the mounting pin. The mounting pin is inserted into the first mounting hole and is detachably connected to the adapter body. A second mounting hole is formed at the end of the mounting pin. The second mounting hole is a blind hole, and a plug adapted to it is provided at the opening of the second mounting hole. The plug is detachably connected to the second mounting hole. The temperature acquisition and recording device is arranged in the second mounting hole.

[0012] The beneficial effect of adopting the above further solution is that the temperature acquisition and recording device is installed in the mounting pin and is installed on the adapter body through the mounting pin, which can protect the temperature acquisition and recording device and avoid damage to the temperature acquisition and recording device during the pumping and recovery processes, and the installation and disassembly are convenient.

[0013] Further, the outer wall of the mounting pin has an external thread, and the inner wall of the first mounting hole has an internal thread adapted to the external thread. The mounting pin is threadedly connected to the adapter body in the first mounting hole.

[0014] The beneficial effect of adopting the above further solution is that the installation and disassembly are convenient.

[0015] Further, the end of the mounting pin has a joint for driving the mounting pin to rotate. Both ends of the mounting pin and the joint are in the first mounting hole.

[0016] The beneficial effect of adopting the above further solution is that the whole mounting pin is in the first mounting hole, which can avoid damage to the wellbore, the mounting pin and the temperature acquisition and recording device therein due to protrusion during the pumping and recovery processes, and the reliability is high.

[0017] Further, both the mounting pin and the plug are made of heat-conducting materials.

[0018] The beneficial effect of adopting the above further solution is that it is beneficial for the temperature acquisition and recording device in the mounting pin to measure the ambient temperature.

[0019] Further, the adapter body is columnar.

[0020] The beneficial effect of adopting the above further solution is that it is convenient to move in the wellbore and reduces resistance.

[0021] Further, the adapter body is hollow and runs through from front to back. The front end of the adapter body is used to connect the soluble bridge plug, and the rear end of the adapter body is used to connect the setting tool.

[0022] The beneficial effect of adopting the above further solution is that it reduces the weight of the adapter body, and the fluid can flow through the inner cavity of the adapter, reducing the resistance.

[0023] Further, the temperature acquisition and recording device is disposed inside the inner cavity of the adapter body.

[0024] The beneficial effects of adopting the above further solution are as follows: it can not only avoid the damage caused by the collision of the temperature acquisition and recording device protruding outside the adapter body, but also be in full contact with the fluid environment, facilitating the measurement of the dynamic ambient temperature.

[0025] The dynamic well temperature measurement method disclosed by the present invention includes the following steps:

[0026] Install the temperature acquisition and recording device: Install the temperature acquisition and recording device on the adapter body, and the setting tool and the soluble bridge plug are connected through the adapter body;

[0027] The first pumping: After the step of installing the temperature acquisition and recording device is completed, place the soluble bridge plug connected with the adapter body and the setting tool into the wellbore, and pump the pumping fluid into the wellbore through the wellhead to pump the soluble bridge plug to the first setting position;

[0028] The first setting: Set the soluble bridge plug after it reaches the first setting position;

[0029] The first temperature acquisition and recording: During the first pumping step and the first setting step, the temperature acquisition and recording device acquires and records the dynamic ambient temperature;

[0030] The first out-of-well: After the first setting step is completed, disconnect the adapter body from the soluble bridge plug, and recover the adapter body and the setting tool to the ground through the wellbore, and obtain the dynamic ambient temperature acquired and recorded in the first temperature acquisition and recording step on the ground through the temperature acquisition and recording device on the adapter body;

[0031] The first fracturing: After the first out-of-well step is completed, pump the fracturing fluid into the wellbore through the wellhead.

[0032] The beneficial effects of the present invention are as follows: During the segmented fracturing process, the temperature acquisition and recording device on the adapter body can measure the dynamic ambient temperature in the wellbore when pumping the soluble bridge plug. There is no other redundant operation, the operation is convenient, and the cost is low. The temperature acquisition and recording device and the soluble bridge plug are in the same fluid environment, and the measurement data is accurate. It can provide a basis for the material selection and design of the ideal soluble bridge plug used in this block, and is conducive to designing the ideal soluble bridge plug for use in this block.

[0033] Further, in the first fracturing step, the flow rate of the fracturing fluid is greater than the flow rate of the pumping fluid in the first pumping step, and the total amount of the fracturing fluid injected into the wellbore is greater than the total amount of the pumping fluid injected into the wellbore in the first pumping step.

[0034] The beneficial effect of adopting the above further solution is that: the flow rate of the fracturing fluid is greater than the flow rate of the pumping fluid in the first pumping step, the total amount of the fracturing fluid injected into the wellbore is greater than the total amount of the pumping fluid injected into the wellbore in the first pumping step, the dynamic ambient temperature in the wellbore during pumping is greater than or equal to the dynamic ambient temperature in the wellbore during fracturing. Only by obtaining the dynamic ambient temperature during pumping and designing the dissolution temperature of the soluble bridge plug to be greater than the maximum value of the dynamic ambient temperature during pumping can it be ensured that the soluble bridge plug does not dissolve before the completion of fracturing, and the wellbore is sealed at the first sealing position before the completion of fracturing.

[0035] Further, the following steps are also included:

[0036] Second pumping: After the first fracturing step is completed, the adapter body is placed into the wellbore. The temperature acquisition and recording device is installed on the adapter body, and pumping fluid is introduced into the wellbore through the wellhead to pump the adapter body to the underground.

[0037] Second temperature acquisition and recording: During the second pumping step, the temperature acquisition and recording device acquires and records the dynamic ambient temperature.

[0038] Second out of the well: After the second temperature acquisition and recording step is completed, the adapter body is recovered to the ground through the wellbore, and the dynamic ambient temperature acquired and recorded in the second temperature acquisition and recording step is obtained on the ground through the temperature acquisition and recording device on the adapter body.

[0039] The beneficial effect of adopting the above further solution is that: through the second temperature acquisition and recording step, the dynamic ambient temperature in the horizontal well after the completion of the previous fracturing can be obtained, providing a basis for designing the dissolution temperature of the soluble bridge plug.

[0040] Further, in the second pumping step, the adapter body is respectively connected with the setting tool and the soluble bridge plug, and the pumping fluid pumps the soluble bridge plug connected with the adapter body and the setting tool to the second sealing position.

[0041] The following steps are also included:

[0042] Second setting: After the second pumping step is completed, the soluble bridge plug reaches the second sealing position and the soluble bridge plug is set at the second sealing position.

[0043] After the second setting step is completed, the soluble bridge plug is disconnected from the adapter body, and the second well exiting step is started. In the second well exiting step, both the setting tool and the adapter body are retrieved to the ground through the wellbore;

[0044] Second fracturing: After the second well exiting step is completed, fracturing fluid is introduced into the wellbore through the wellhead.

[0045] The beneficial effect of adopting the above further solution is that in the next fracturing operation after one fracturing operation in the staged fracturing process, the second temperature acquisition and recording step does not require other redundant operations, has low cost, is simple to operate, and does not increase the workload too much.

[0046] The method for manufacturing a soluble bridge plug disclosed in the present invention designs the soluble bridge plug according to the dynamic ambient temperature measured by the above dynamic well temperature measurement method.

[0047] The beneficial effect of the present invention is that the designed soluble bridge plug has good dissolution performance in the corresponding wellbore.

[0048] Further, in the process of designing the soluble bridge plug, the designed temperature at which the soluble bridge plug dissolves is greater than the maximum value of the dynamic ambient temperature acquired and recorded in the first temperature acquisition and recording step.

[0049] The beneficial effect of adopting the above further solution is that it can ensure that the soluble bridge plug does not dissolve in advance before the fracturing is completed, and ensure the fracturing effect. Brief Description of the Drawings

[0050] Figure 1 One of the schematic diagrams of an embodiment of a soluble bridge plug adapter;

[0051] Figure 2 Sectional view taken along line A-A;

[0052] Figure 3 Another schematic diagram of an embodiment of a soluble bridge plug adapter;

[0053] Figure 4 Schematic diagram of an embodiment of the adapter body;

[0054] Figure 5 Schematic diagram of an embodiment of a horizontal well;

[0055] In the figure: 1. Adapter body; 2. Installation pin; 3. Temperature acquisition and recording device; 4. Plug; 5. Second installation hole; 6. Connector; 7. First installation hole; 8. Wellhead; 9. Wellbore; 10. First setting position; 11. Second setting position; Detailed Description of the Invention

[0056] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings.

[0057] As Figures 1 - 5 shown, an embodiment of the soluble bridge plug adapter disclosed by the present invention includes an adapter body 1 and a temperature acquisition and recording device 3. The temperature acquisition and recording device 3 is fixed on the adapter body 1. The adapter body 1 is used to connect a setting tool and a soluble bridge plug. The temperature acquisition and recording device 3 is used to detect and record the ambient temperature where the adapter body 1 is located. The temperature acquisition and recording device 3 can adopt an existing micro temperature acquisition and recording device 3.

[0058] As a further solution of the above embodiment of the soluble bridge plug adapter, the adapter body 1 is columnar, preferably cylindrical. The front of the adapter body 1 is thin and the rear is thick, and the thick part and the thin part are connected by a conical surface. The adapter body 1 is hollow and runs through from front to back. The inner cavity of the adapter body 1 is cylindrical and coaxial with it. The front end of the adapter body 1 is used to connect the soluble bridge plug, and the rear end of the adapter body 1 is used to connect the setting tool.

[0059] As a further solution of the above embodiment of the soluble bridge plug adapter, it further includes a mounting pin 2. The adapter body 1 has a first mounting hole 7 adapted to the mounting pin 2. The first mounting hole 7 is in the thick part of the adapter body 1. The first mounting hole 7 runs through the opposite sides of the adapter body 1 along the radial direction of the adapter body 1. The mounting pin 2 is inserted into the first mounting hole 7 and is detachably connected to the adapter body 1. A second mounting hole 5 is opened at the end of the mounting pin 2. The second mounting hole 5 is a blind hole. A plug 4 adapted to it is provided at the opening of the second mounting hole 5. The plug 4 is detachably connected to the second mounting hole 5. The temperature acquisition and recording device 3 is arranged in the second mounting hole 5. Both the mounting pin 2 and the plug 4 are made of heat-conducting materials.

[0060] As a further solution of the above embodiment of the soluble bridge plug adapter, the outer wall of the mounting pin 2 has an external thread, and the inner wall of the first mounting hole 7 has an internal thread adapted to the external thread. The mounting pin 2 is threadedly connected to the adapter body 1 in the first mounting hole 7.

[0061] As a further solution of the above embodiment of the soluble bridge plug adapter, the end of the mounting pin 2 has a joint 6 for driving the mounting pin 2 to rotate. Both ends of the mounting pin 2 and the joint 6 are in the first mounting hole 7. The external thread and the joint 6 are respectively at both ends of the mounting pin 2. The internal thread is on one side wall of the adapter body 1. The joint 6 can be an external hexagon joint 6. The mounting pin 2 can be rotated by tools such as a corresponding socket wrench. The plug 4 is an NPT plug 4.

[0062] As a further solution of the above embodiment of the soluble bridge plug adapter, the mounting pin 2 runs through the inner cavity of the adapter body 1, and the temperature acquisition and recording device 3 is arranged in the inner cavity of the adapter body 1.

[0063] An embodiment of the dynamic well temperature measurement method disclosed by the present invention includes the following steps:

[0064] Install the temperature acquisition and recording device 3: Set the temperature acquisition and recording device 3 through computer software, set the acquisition and recording time and frequency, install the temperature acquisition and recording device 3 on the adapter body 1, and connect the setting tool and the soluble bridge plug through the adapter body 1;

[0065] The first pumping: After the step of installing the temperature acquisition and recording device 3 is completed, place the soluble bridge plug connected with the adapter body 1 and the setting tool into the wellbore 9, introduce the pumping fluid into the wellbore 9 through the wellhead 8, and pump the soluble bridge plug to the first setting position 10;

[0066] The first setting: Set the soluble bridge plug after it reaches the first setting position 10;

[0067] The first temperature acquisition and recording: In the first pumping step and the first setting step, the temperature acquisition and recording device 3 acquires and records the dynamic ambient temperature;

[0068] The first out-of-well: After the first setting step is completed, disconnect the adapter body 1 from the soluble bridge plug, recover the adapter body 1 and the setting tool to the ground through the wellbore 9, connect the temperature acquisition and recording device 3 on the adapter body 1 to the computer, and obtain the dynamic ambient temperature acquired and recorded in the first temperature acquisition and recording step on the ground. The lowest temperature at which the soluble bridge plug designed in this block dissolves is greater than the maximum value of the dynamic ambient temperature acquired and recorded in the first temperature acquisition and recording step.

[0069] In the first out-of-well step, the temperature acquisition and recording device 3 can also acquire and record the dynamic ambient temperature.

[0070] The first fracturing: After the first out-of-well step is completed, introduce the fracturing fluid into the wellbore 9 through the wellhead 8.

[0071] In the first fracturing step, the flow rate of the fracturing fluid is greater than the flow rate of the pumping fluid in the first pumping step, and the total amount of the fracturing fluid injected into the wellbore 9 is greater than the total amount of the pumping fluid injected into the wellbore 9 in the first pumping step. In a horizontal well, at the same depth, the dynamic ambient temperature is related to the total amount and flow rate of the liquid in the wellbore 9, ensuring that the dynamic ambient temperature in the wellbore 9 during the first fracturing step is lower than or equal to the dynamic ambient temperature during the first pumping step, and the designed soluble bridge plug will not dissolve during pumping and fracturing.

[0072] It further includes the following steps:

[0073] Second pumping: After the first fracturing step is completed, the adapter body 1 is placed into the wellbore 9. A temperature acquisition and recording device 3 is installed on the adapter body 1. Pumping fluid is introduced into the wellbore 9 through the wellhead 8, and the adapter body 1 is pumped downhole.

[0074] Second temperature acquisition and recording: During the second pumping step, the temperature acquisition and recording device 3 acquires and records the dynamic ambient temperature. The dynamic ambient temperature obtained at this time is the dynamic ambient temperature in the horizontal well after the previous fracturing is completed.

[0075] Second out-of-well: After the second temperature acquisition and recording step is completed, the adapter body 1 is recovered to the ground through the wellbore 9. The dynamic ambient temperature acquired and recorded in the second temperature acquisition and recording step is obtained on the ground through the temperature acquisition and recording device 3 on the adapter body 1.

[0076] During the second pumping step, the adapter body 1 is respectively connected with a setting tool and a soluble bridge plug. The pumping fluid pumps the soluble bridge plug connected with the adapter body 1 and the setting tool to the second setting position 11.

[0077] It further includes steps:

[0078] Second setting: After the second pumping step is completed, the soluble bridge plug reaches the second setting position 11, and the soluble bridge plug is set at the second setting position 11. The second setting position 11 is behind the first setting position 10.

[0079] After the second setting step is completed, the soluble bridge plug is disconnected from the adapter body 1, and the second out-of-well step starts. During the second out-of-well step, both the setting tool and the adapter body 1 are recovered to the ground through the wellbore 9.

[0080] Second fracturing: After the second out-of-well step is completed, fracturing fluid is introduced into the wellbore 9 through the wellhead 8.

[0081] It can enable the temperature acquisition and recording device 3 to acquire and record the dynamic ambient temperature in each step when it is in the wellbore 9.

[0082] In the embodiment of the above dynamic well temperature measurement method, the dynamic ambient temperature during this section of pumping is obtained through the pumping step of the previous process in the horizontal well staged fracturing process, and the dynamic ambient temperature after the previous process of fracturing is completed is obtained through the pumping step of the next process in the horizontal well staged fracturing process. The soluble bridge plug designed based on the above two dynamic ambient temperatures can ensure that it does not dissolve prematurely before the fracturing is completed. The depths at all parts of the horizontal well are the same, and the dynamic temperatures at all parts are similar. Composite data can be obtained through multiple repeated measurements, and the soluble bridge plug for the horizontal well in this block is designed based on this.

[0083] An embodiment of the method for manufacturing a soluble bridge plug disclosed in the present invention designs the soluble bridge plug according to the dynamic ambient temperature measured by the above dynamic well temperature measurement method.

[0084] In the process of designing the soluble bridge plug, the designed dissolution temperature of the soluble bridge plug is greater than the maximum value of the dynamic ambient temperature collected and recorded in the first temperature collection and recording step, and the dynamic ambient temperature collected and recorded in the second temperature collection and recording step is used as the basis to design the temperature at which the soluble bridge plug dissolves quickly and fully.

[0085] Certainly, the present invention may also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A soluble bridge plug adapter, characterized in that: It includes an adapter body (1) and a temperature acquisition and recording device (3). The temperature acquisition and recording device (3) is fixed on the adapter body (1). The adapter body (1) is used to connect a setting tool and a soluble bridge plug. The temperature acquisition and recording device (3) is used to detect and record the ambient temperature where the adapter body (1) is located, and the ambient temperature is used to design the soluble bridge plug for the horizontal well in this block; It further includes a mounting pin (2). The adapter body (1) has a first mounting hole (7) adapted to the mounting pin (2). The mounting pin (2) is inserted into the first mounting hole (7) and is detachably connected to the adapter body (1). A second mounting hole (5) is opened at the end of the mounting pin (2). The second mounting hole (5) is a blind hole. A plug (4) adapted to it is provided at the opening of the second mounting hole (5). The plug (4) is detachably connected to the second mounting hole (5). The temperature acquisition and recording device (3) is arranged in the second mounting hole (5); The adapter body (1) is columnar.

2. The soluble bridge plug adapter according to claim 1, characterized in that: Both the mounting pin (2) and the plug (4) are made of heat-conducting materials.

3. A method for manufacturing a soluble bridge plug, characterized in that: Design the soluble bridge plug according to the dynamic ambient temperature measured by the following dynamic well temperature measurement method. During the process of designing the soluble bridge plug, the designed dissolution temperature of the soluble bridge plug is greater than the maximum value of the dynamic ambient temperature collected and recorded in the first temperature acquisition and recording step; The dynamic well temperature measurement method includes the following steps: Install the temperature acquisition and recording device (3): Install the temperature acquisition and recording device (3) on the adapter body (1). The setting tool and the soluble bridge plug are connected through the adapter body (1); The first pumping: After the step of installing the temperature acquisition and recording device (3) is completed, put the soluble bridge plug connected to the adapter body (1) and the setting tool into the wellbore (9), and pump the soluble bridge plug to the first setting position (10) by injecting pumping fluid into the wellbore (9) through the wellhead (8); The first setting: Set the soluble bridge plug after it reaches the first setting position (10); The first temperature acquisition and recording: During the first pumping step and the first setting step, the temperature acquisition and recording device (3) acquires and records the dynamic ambient temperature; The first out-of-well: After the first setting step is completed, the adapter body (1) is disconnected from the soluble bridge plug. The adapter body (1) and the setting tool are recovered to the ground through the wellbore (9). The dynamic ambient temperature collected and recorded in the first temperature acquisition and recording step is obtained on the ground through the temperature acquisition and recording device (3) on the adapter body (1); The first fracturing: After the first out-of-well step is completed, inject fracturing fluid into the wellbore (9) through the wellhead (8); Second pumping: After the first fracturing step is completed, the adapter body (1) is placed into the wellbore (9). The temperature acquisition and recording device (3) is installed on the adapter body (1). Pumping fluid is introduced into the wellbore (9) through the wellhead (8) to pump the adapter body (1) downhole. Second temperature acquisition and recording: During the second pumping step, the temperature acquisition and recording device (3) acquires and records the dynamic ambient temperature. Second out-of-well: After the second temperature acquisition and recording step is completed, the adapter body (1) is recovered to the ground through the wellbore (9). The dynamic ambient temperature acquired and recorded in the second temperature acquisition and recording step is obtained on the ground through the temperature acquisition and recording device (3) on the adapter body (1).

4. The method for manufacturing a soluble bridge plug according to claim 3, characterized in that: In the first fracturing step, the flow rate of the fracturing fluid is greater than the flow rate of the pumping fluid in the first pumping step, and the total amount of the fracturing fluid injected into the wellbore (9) is greater than the total amount of the pumping fluid injected into the wellbore (9) in the first pumping step.

5. The method for manufacturing a soluble bridge plug according to claim 3, characterized in that: In the second pumping step, the adapter body (1) is respectively connected to the setting tool and the soluble bridge plug. The pumping fluid pumps the soluble bridge plug connected to the adapter body (1) and the setting tool to the second setting position (11). It further includes the step: Second setting: After the second pumping step is completed, the soluble bridge plug reaches the second setting position (11), and the soluble bridge plug is set at the second setting position (11). After the second setting step is completed, the soluble bridge plug is disconnected from the adapter body (1), and the second out-of-well step is started. In the second out-of-well step, both the setting tool and the adapter body (1) are recovered to the ground through the wellbore (9). Second fracturing: After the second out-of-well step is completed, fracturing fluid is introduced into the wellbore (9) through the wellhead (8).

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