Wellbore temperature measuring device

Abstract

The application discloses a wellbore temperature measuring device and relates to the field of gas storage, which comprises a support frame installed inside an oil pipe, an electric control mechanism is installed at the top end of the support frame, and gas exchange mechanisms are installed on both sides of the electric control mechanism, a positioning frame is further installed on the inner wall of the oil pipe below the support frame, two groups of charging mechanisms are connected to the top end of the positioning frame, the charging mechanisms are connected with the electric control mechanism, a hoisting mechanism is further connected to the top end of the positioning frame, a sliding plate is connected to the output end of the hoisting mechanism below the positioning frame, and temperature measuring mechanisms are installed on both sides of the sliding plate. The temperature measuring mechanisms and the air inlet mechanisms are arranged, the air on the side of the temperature measuring mechanisms can be sucked into the temperature measuring mechanisms through the air inlet mechanisms during the temperature measuring process, the temperature of the air at different positions is detected through the temperature measuring probes, and the detection range is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gas storage, in particular to a wellbore temperature measuring device. BACKGROUND

[0002] The gas storage is a facility for storing natural gas, which is usually used to balance the supply and demand of natural gas, especially during peak demand or supply shortage. The gas storage can help ensure stable supply of energy and buffer the price fluctuations of energy. When natural gas is stored in the gas storage, it is usually injected and recovered through the wellbore, and the structure of the wellbore is usually composed of wellhead, casing, production string and packer, etc. In order to improve the safety of the gas storage, it is usually necessary to detect the gas injected into the gas storage.

[0003] The prior art, such as the Chinese patent CN119333111A, discloses a wellbore temperature measuring device, which comprises a controller, an acquisition part, a counterweight part and a connecting part for connecting the acquisition part and the counterweight part, the acquisition part is electrically connected with the controller;

[0004] The connecting part comprises an outer sleeve, an inner sleeve and a connecting piece, the diameter of the outer sleeve is larger than that of the inner sleeve, the outer sleeve and the inner sleeve are fixedly connected at the bottom of the acquisition part, and the inner sleeve is located inside the outer sleeve;

[0005] The top of the counterweight part is fixedly connected with a connecting column, the connecting column is correspondingly inserted into the inner sleeve, and the end of the outer sleeve away from the acquisition part abuts against the top of the counterweight part;

[0006] Corresponding through mounting holes are respectively arranged on the opposite positions of the side wall of the outer sleeve, the opposite positions of the side wall of the inner sleeve and the connecting column, the connecting piece passes through the mounting holes and is arranged on the outer sleeve, the inner sleeve and the connecting column;

[0007] The bottom of the acquisition part is provided with a mounting groove, an electric control gate is mounted in the mounting groove, the electric control gate is located on one side of the connecting piece and divides the inner cavity of the outer sleeve into a reaction chamber and a storage chamber, the connecting piece is located in the reaction chamber, the storage chamber stores strong acid, the electric control gate is electrically connected with the controller, when the controller controls the electric control gate to open, the electric control gate retracts towards the bottom of the mounting groove, and the strong acid enters the reaction chamber to corrode and dissolve the connecting piece.

[0008] The prior art temperature measuring method is to place a detection device into a wellbore to detect the temperature inside the wellbore, but the detection method cannot accurately detect the temperature of the gas flowing inside the pipeline, the detection effect is not accurate, secondly, in the detection process, the use of strong acid and other equipment destroys the internal structure of the wellbore, which is very dangerous, and is very inconvenient in the subsequent repair process, and finally the existing technology leaves residual structures inside the wellbore, causing pollution inside the wellbore. SUMMARY

[0009] Therefore, the present application aims to provide a wellbore temperature measuring device to solve the problems of low detection accuracy and detection process.

[0010] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a wellbore temperature measuring device, comprising a support frame installed inside an oil pipe, an electric control mechanism is installed at the top end of the support frame, and a gas exchange mechanism is installed on both sides of the electric control mechanism, a positioning frame is installed below the inner wall of the oil pipe, two groups of charging mechanisms are connected to the top end of the positioning frame, the charging mechanisms are connected to the electric control mechanism, a hoisting mechanism is also connected to the top end of the positioning frame, the output end of the hoisting mechanism extends below the positioning frame and is connected to a sliding plate, a temperature measuring mechanism is installed on both sides of the sliding plate, a power storage mechanism is installed at the top end of the temperature measuring mechanism, a charging interface is connected to the bottom end of the charging mechanism, the charging interface extends below the positioning frame, a sealing mechanism is installed around the charging interface at the bottom end of the positioning frame, a side air outlet is formed in the side surface of the sealing mechanism, a sealing sliding plate is slidably connected inside the sealing mechanism, the sealing sliding plate blocks the side air outlet when it moves into the sealing mechanism, a sealing sleeve is connected to the bottom end of the sealing sliding plate, a charging socket is connected to the top end of the power storage mechanism, a sealing edge plate matching the sealing sleeve is formed on the outside of the power storage mechanism, and the sealing sliding plate is movably connected to the sealing mechanism through an elastic reset mechanism.

[0011] By adopting the above technical scheme, the temperature of different positions in the wellbore can be conveniently detected, the power storage mechanism and the sealing mechanism can be conveniently sealed during charging, the gas inside the sealing mechanism can be replaced and cleaned through the gas exchange mechanism, and the danger during charging is reduced.

[0012] The present application further provides that a sealing frame, a surface sleeve and an independent side gas storage chamber are formed on the outside of the oil pipe, the inside of the independent side gas storage chamber is formed with a connecting port which extends through the independent side gas storage chamber to the inside of the oil pipe, a sealing plate is further connected between the oil pipe and the surface sleeve, and the sealing plate is symmetrically arranged about the connecting port of the independent side gas storage chamber.

[0013] As a preferred, the independent side gas storage chamber can be used for additional storage of gas, improving the storage effect.

[0014] The oil pipe is internally provided with a sliding rail, the sliding rail passes through the connecting port position of the independent side gas storage chamber, and the sliding plate is matched with the sliding rail.

[0015] Preferably, the temperature measuring mechanism is limited by the sliding rail during detection, thereby improving stability.

[0016] The top end of the electric control mechanism is connected with an electricity connection panel, the electric control mechanism is connected with an external power supply through the electricity connection panel, two groups of electricity connection hanging plates are installed on the end surface of the electric control mechanism, and the bottom end of the electricity connection hanging plate is provided with an electricity connection lead wire.

[0017] Preferably, the charging mechanism can be conveniently powered, and the electricity connection lead wire is sealed by the sealing sleeve.

[0018] The air exchange mechanism is internally hollow, the side surface of the air exchange mechanism is connected with an air exchange motor, the output end of the air exchange motor is internally provided with an air exchange fan blade, the top end of the air exchange mechanism is provided with an air inlet, the bottom end of the air exchange mechanism is connected with an air exchange sleeve, the air exchange sleeve extends to above the positioning frame and is connected with the inside of the sealing mechanism, and the two sides of the air exchange mechanism are both provided with mounting support legs.

[0019] Preferably, external air can be conveniently injected into the sealing mechanism, so that the gas in the sealing mechanism is discharged.

[0020] The end surface of the sliding plate away from the sliding rail is connected with a connecting plate, the two sides of the connecting plate are connected with hanging plates, the temperature measuring mechanism is fixed on the outer wall of the hanging plate, and the electricity storage mechanism is located above the hanging plate.

[0021] Preferably, the electricity storage mechanism and the temperature measuring mechanism are conveniently fixed.

[0022] The side surface of the temperature measuring mechanism is connected with a detection head, the inside of the temperature measuring mechanism is provided with a cavity, the side surface of the detection head is connected with a connecting rod, and the inside of the cavity is provided with an electricity connection plate.

[0023] Preferably, the temperature inside the well shaft and the main gas storage chamber is conveniently detected.

[0024] The end surface of the temperature measuring mechanism is provided with an air inlet mechanism, the inside of the air inlet mechanism is provided with an air inlet fan blade, the air inlet mechanism is connected with the inside of the temperature measuring mechanism, and the air inlet fan blade drives the airflow of other parts to enter the inside of the air inlet mechanism.

[0025] As preferred, it is convenient to draw the air of other positions into the temperature measuring mechanism, and it is convenient to detect the temperature of the air of different positions.

[0026] In summary, the present application mainly has the following advantages:

[0027] 1、The temperature measuring mechanism can move up and down in the wellbore by the sliding plate, so as to detect the temperature of the air of different positions in the wellbore.

[0028] 2、The sealing effect between the power storage mechanism and the sealing mechanism is increased by moving the sealing sliding plate in the sealing mechanism upward, and the air in the sealing mechanism is discharged through the side exhaust port during the movement.

[0029] 3、The temperature measuring mechanism and the air inlet mechanism are arranged, so that the air on the side of the temperature measuring mechanism is drawn into the temperature measuring mechanism through the air inlet mechanism during the temperature measurement, so that the temperature of the air of different positions is detected by the temperature probe, and the detection range is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic view of the wellbore installation of the present application;

[0031] Figure 2 It is a structure schematic view of the wellbore section of the present application;

[0032] Figure 3 It is a structure schematic view of the temperature measurement hoisting in the wellbore of the present application;

[0033] Figure 4 It is a structure schematic view of the power supply mechanism of the present application;

[0034] Figure 5 It is a structure schematic view of the air exchange mechanism inside the present application;

[0035] Figure 6 It is a structure schematic view of the charging mechanism of the present application;

[0036] Figure 7 It is a connection sealing structure schematic view of the charging mechanism of the present application;

[0037] Figure 8It is the structural schematic view of the sliding plate and temperature measuring mechanism of the present application.

[0038] Figure 9 It is the structural schematic view of the temperature measuring mechanism of the present application.

[0039] Figure 10 It is the structural schematic view of the temperature measuring mechanism section of the present application.

[0040] Mark explanation:

[0041] 1, oil pipe; 2, sealing frame; 3, surface casing; 4, independent side gas storage chamber; 5, support frame; 6, electric control mechanism; 601, power connection panel; 602, power connection hanging plate; 603, power connection wire; 7, positioning frame; 8, sealing plate; 9, sliding rail; 10, air exchange sleeve; 11, air exchange mechanism; 1101, air exchange motor; 1102, air exchange fan blade; 1103, air inlet; 1104, mounting support foot; 12, sealing sleeve; 13, charging mechanism; 1301, charging interface; 14, hoisting mechanism; 15, pressure control tank; 16, sliding plate; 17, connecting plate; 18, temperature measuring mechanism; 1801, detection head; 1802, connecting rod; 1803, cavity; 1804, power connection plate; 19, power storage mechanism; 1901, charging socket; 1902, sealing side plate; 20, sealing mechanism; 2001, side exhaust port; 2002, sealing sliding plate; 2003, sealing sleeve; 2004, spring sleeve rod; 2005, spring; 2006, plug rod; 21, hanging plate; 22, air inlet mechanism; 2201, air inlet fan blade. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0043] The embodiments of the present application will be described below according to the overall structure of the present application.

[0044] Please refer to Figure 1 and Figure 2 , wellbore temperature measuring device, the outer side of the oil pipe 1 is provided with a sealing frame 2, a surface casing 3 and an independent side gas storage chamber 4, the inside of the independent side gas storage chamber 4 is provided with a connection port, and the connection port extends through the independent side gas storage chamber 4 to the inside of the oil pipe 1, the oil pipe 1 and the surface casing 3 are further connected with a sealing plate 8, and the sealing plate 8 is symmetrically arranged about the connection port of the independent side gas storage chamber 4, the inside of the oil pipe 1 is provided with a sliding rail 9, and the sliding rail 9 passes through the position of the connection port of a group of independent side gas storage chambers 4.

[0045] Please refer to Figures 2 to 6The support frame 5 is installed in the oil pipe 1, the top end of the support frame 5 is provided with the electric control mechanism 6, both sides of the electric control mechanism 6 are provided with the air exchange mechanism 11, the lower part of the support frame 5 is provided with the positioning frame 7 in the inner wall of the oil pipe 1, the top end of the positioning frame 7 is connected with two groups of charging mechanisms 13, the charging mechanisms 13 are connected with the electric control mechanism 6, the top end of the positioning frame 7 is also connected with the hoisting mechanism 14, the output end of the hoisting mechanism 14 extends to the lower part of the positioning frame 7 and is connected with the sliding plate 16, the sliding plate 16 is matched with the sliding rail 9, so that the charging mechanisms 13 on the positioning frame 7 can be conveniently powered.

[0046] Please refer to Figures 8 to 10 Both sides of the sliding plate 16 are provided with the temperature measuring mechanism 18, the side surface of the temperature measuring mechanism 18 is connected with the detection head 1801, the inside of the temperature measuring mechanism 18 is provided with the cavity 1803, the side surface of the detection head 1801 is connected with the connecting rod 1802, the inside of the cavity 1803 is provided with the power connection plate 1804, the connecting rod 1802 extends into the cavity 1803 and is connected with the power connection plate 1804, the end surface of the temperature measuring mechanism 18 is provided with the air inlet mechanism 22, the inside of the air inlet mechanism 22 is provided with the air inlet fan blade 2201, the air inlet mechanism 22 is connected with the inside of the temperature measuring mechanism 18, the air inlet fan blade 2201 drives the airflow of other parts into the inside of the air inlet mechanism 22, so that the gas at other positions can be sucked into the temperature measuring mechanism 18, and the temperature of the gas at different positions can be conveniently detected.

[0047] Please refer to Figures 2 to 10 The end surface of the sliding plate 16 away from the sliding rail 9 is connected with the connecting plate 17, both sides of the connecting plate 17 are connected with the hanging plate 21, the temperature measuring mechanism 18 is fixed on the outer wall of the hanging plate 21, the power storage mechanism 19 is located above the hanging plate 21, the bottom end of the charging mechanism 13 is connected with the charging interface 1301, the charging interface 1301 extends to the lower part of the positioning frame 7, the bottom end of the positioning frame 7 is provided with the sealing mechanism 20 around the charging interface 1301, the side surface of the sealing mechanism 20 is provided with the side air outlet 2001, the inside of the sealing mechanism 20 is slidably connected with the sealing sliding plate 2002, the sealing sliding plate 2002 blocks the side air outlet 2001 when moving into the inside of the sealing mechanism 20, the bottom end of the sealing sliding plate 2002 is connected with the sealing sleeve 2003, the upper part of the sealing sliding plate 2002 is connected with the spring sleeve rod 2004, the spring 2005 and the plug rod 2006, so that the sealing sliding plate 2002 can slide up and down conveniently, the sealing sliding plate 2002 and the power storage mechanism 19 are sealed, the top end of the power storage mechanism 19 is connected with the charging jack 1901, the outer side of the power storage mechanism 19 is provided with the sealing edge plate 1902 matched with the sealing sleeve 2003, the sealing sliding plate 2002 is movably connected with the sealing mechanism 20 through the elastic reset mechanism, the sampling gas attached to the power storage mechanism 19 during the charging process is removed, and the safety of the charging is improved.

[0048] In the above embodiment, please refer to Figure 4 The top end of the electric control mechanism 6 is connected with an electricity connection panel 601, the electric control mechanism 6 is connected with the external power supply through the electricity connection panel 601, the end surface of the electric control mechanism 6 is installed with two groups of electricity connection hanging plates 602, and the bottom end of the electricity connection hanging plate 602 is installed with an electricity connection wire 603, and the electricity connection wire 603 is connected with the charging mechanism 13.

[0049] In the above embodiment, please refer to Figure 5 The inside of the air exchange mechanism 11 is hollow, the side surface of the air exchange mechanism 11 is connected with an air exchange motor 1101, the output end of the air exchange motor 1101 is installed with an air exchange fan blade 1102 in the inside of the air exchange mechanism 11, the top end of the air exchange mechanism 11 is provided with an air inlet 1103, the bottom end of the air exchange mechanism 11 is connected with an air exchange sleeve 10, the air exchange sleeve 10 extends to the upper side of the positioning frame 7 and is connected with the inside of the sealing mechanism 20, the upper side of the positioning frame 7 is further installed with a pressure control tank 15, the inside of the pressure control tank 15 is installed with a spring and a sealing plate, and the pressure control tank 15 is connected with the inside of the sealing mechanism 20, and the two sides of the air exchange mechanism 11 are installed with installation supporting legs 1104, and the installation supporting legs 1104 support and limit the air exchange mechanism 11.

[0050] In the use process of the present application, first, the fixing of each group of supporting structures is carried out, the sliding plate 16 of the hoisting mechanism 14 is clamped outside the sliding rail 9, then the positioning frame 7 is positioned through the bolt, the installation of the charging mechanism 13 and the lower sliding plate 16 is completed, then the supporting frame 5 is installed, and the electric control mechanism 6 and the air exchange mechanism 11 are installed on the supporting frame 5, the electricity connection wire 603 is connected with the charging mechanism 13, the air exchange sleeve 10 is connected with the top end of the air exchange mechanism 11 and the positioning frame 7, and the air exchange sleeve 10 is connected with the inside of the sealing mechanism 20.

[0051] In use, if the temperature inside the wellbore needs to be detected, the hoisting motor in the hoisting mechanism 14 is started to drive the roller to rotate, the connecting rope on the roller is released, the sliding plate 16 moves downward under the action of gravity, and the sliding plate 16 slides downward along the sliding rail 9, which can ensure the stability of the movement of the sliding plate 16, the sliding plate 16 drives the outer connecting plate 17 to move downward, thereby driving the temperature measuring mechanism 18 to also move downward, at this time, the air inlet mechanism 22 and the temperature measuring mechanism 18 are synchronously powered by the power storage mechanism 19, the temperature measuring mechanism 18 detects the temperature inside the wellbore, at the same time of detection, the air inlet fan blade 2201 in the air inlet mechanism 22 drives other air in the wellbore close to the inner wall to enter the cavity 1803 in the temperature measuring mechanism 18, and the airflow flows along the connecting rod 1802, and finally reaches the position of the detection head 1801, the temperature of the flowing air is detected by the detection head 1801, the detection range is improved, and in the detection process, the temperature measuring mechanism 18 passes through the opening position of the independent side gas storage chamber 4, at this time, the hoisting mechanism 14 is temporarily stopped from moving downward, and the air inlet mechanism 22 can partially draw out the gas in the independent side gas storage chamber 4, so that part of the temperature in the independent side gas storage chamber 4 can also be detected, after detection, the temperature measuring mechanism 18 continues to move downward until it moves into the lower main gas storage chamber (not shown in the figure), thereby realizing temperature detection of different positions of the wellbore and the gas storage chamber;

[0052] When the detection is completed, the sliding plate 16 is moved upward by the hoisting mechanism 14 until the power storage mechanism 19 contacts the sealing mechanism 20, at this time, the sealing edge plate 1902 first contacts the sealing sleeve 2003, so that the sealing edge plate 1902 is sealingly attached to the sealing sleeve 2003, then the power storage mechanism 19 continues to move upward, at this time, the sealing sliding plate 2002 is pushed to move upward, thereby discharging the gas in the sealing mechanism 20 through the side air outlet 2001, at this time, the air inlet fan blade 1102 of the air exchange mechanism 11 is started to suck external air into the air inlet 1103, and the other air is injected into the sealing mechanism 20 through the air exchange sleeve 10 and discharged through the side air outlet 2001, until the sealing sliding plate 2002 moves above the side air outlet 2001, then the air exchange mechanism 11 is started in reverse to exhaust the air between the power storage mechanism 19 and the sealing mechanism 20, thereby effectively discharging the residual gas in the power storage mechanism 19 (especially the gas at the positions of the charging jack 1901 and the charging interface 1301), reducing the pollution of the airflow, and avoiding the reaction between the electric arc generated during charging and the stored gas, causing unnecessary damage, until the charging jack 1901 is inserted into the charging interface 1301, the operation of the air exchange mechanism 11 is stopped, when detection is needed, the air exchange mechanism 11 is started again to inject gas into the sealing mechanism 20, avoiding negative pressure to cause the power storage mechanism 19 to be unable to be extracted from the sealing mechanism 20, improving the detection effect.

[0053] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A wellbore temperature measuring device, comprising a support frame (5) installed inside the tubing (1), characterized in that: An electrical control mechanism (6) is installed at the top of the support frame (5), and ventilation mechanisms (11) are installed on both sides of the electrical control mechanism (6). A positioning frame (7) is also installed below the support frame (5) on the inner wall of the oil pipe (1). Two sets of charging mechanisms (13) are connected to the top of the positioning frame (7). The charging mechanisms (13) are connected to the electrical control mechanism (6). A hoisting mechanism (14) is also connected to the top of the positioning frame (7). The output end of the hoisting mechanism (14) extends to the bottom of the positioning frame (7) and is connected to a sliding plate (16). Temperature measuring mechanisms (18) are installed on both sides of the sliding plate (16). An energy storage mechanism (19) is installed at the top of the temperature measuring mechanism (18). A charging interface (1301) is connected to the bottom of the charging mechanism (13). 1) Extending to the bottom of the positioning frame (7), and the bottom end of the positioning frame (7) is surrounded by the charging interface (1301) and a sealing mechanism (20) is installed. The side of the sealing mechanism (20) is provided with a side exhaust port (2001). The sealing mechanism (20) is slidably connected to the inside of the sealing mechanism (20). When the sealing plate (2002) moves into the inside of the sealing mechanism (20), it blocks the side exhaust port (2001). The bottom end of the sealing plate (2002) is connected to a sealing sleeve (2003). The top end of the energy storage mechanism (19) is connected to a charging port (1901). The outside of the energy storage mechanism (19) is provided with a sealing side plate (1902) that matches the sealing sleeve (2003). The sealing plate (2002) is movably connected to the sealing mechanism (20) through an elastic reset mechanism. The outer side of the oil pipe (1) is provided with a sealing frame (2), a surface sleeve (3) and an independent side gas storage chamber (4). The independent side gas storage chamber (4) is provided with a connection port that extends through the independent side gas storage chamber (4) to the inside of the oil pipe (1). A sealing plate (8) is also connected between the oil pipe (1) and the surface sleeve (3), and the sealing plate (8) is symmetrically arranged with respect to the connection port of the independent side gas storage chamber (4). The oil pipe (1) is equipped with a slide rail (9) inside, which passes through the connection port of a set of independent side gas storage chambers (4), and the sliding plate (16) matches the slide rail (9).

2. The wellbore temperature measuring device according to claim 1, characterized in that: The top of the electronic control mechanism (6) is connected to a power receiving panel (601). The electronic control mechanism (6) is connected to an external power source through the power receiving panel (601). Two sets of power receiving plates (602) are installed on the end face of the electronic control mechanism (6), and power receiving wires (603) are installed at the bottom of each power receiving plate (602). The power receiving wires (603) are connected to the charging mechanism (13).

3. The wellbore temperature measuring device according to claim 1, characterized in that: The air intake fan blade (2201) of the ventilation mechanism (11) is hollow inside. The ventilation motor (1101) is connected to the side of the ventilation mechanism (11). The output end of the ventilation motor (1101) is located inside the ventilation mechanism (11) and the ventilation fan blade (1102) is installed. The top of the ventilation mechanism (11) is provided with an air intake port (1103). The bottom of the ventilation mechanism (11) is connected with a ventilation sleeve (10). The ventilation sleeve (10) extends to the top of the positioning frame (7) and communicates with the inside of the sealing mechanism (20). Both sides of the ventilation mechanism (11) are equipped with mounting feet (1104), which support and limit the ventilation mechanism (11).

4. The wellbore temperature measuring device according to claim 1, characterized in that: The sliding plate (16) is connected to a connecting plate (17) on the end face away from the slide rail (9). The connecting plate (17) is connected to a hanging plate (21) on both sides. The temperature measuring mechanism (18) is fixed on the outer wall of the hanging plate (21). The energy storage mechanism (19) is located above the hanging plate (21).

5. The wellbore temperature measuring device according to claim 1, characterized in that: The temperature measuring mechanism (18) has a detection head (1801) connected to its side. The temperature measuring mechanism (18) has a cavity (1803) inside. The detection head (1801) has a connecting rod (1802) connected to its side. A junction plate (1804) is installed inside the cavity (1803). The connecting rod (1802) extends into the cavity (1803) and connects to the junction plate (1804).

6. The wellbore temperature measuring device according to claim 5, characterized in that: An air intake mechanism (22) is installed on the end face of the temperature measuring mechanism (18). An air intake fan (2201) is installed inside the air intake mechanism (22). The air intake mechanism (22) is connected to the inside of the temperature measuring mechanism (18), and the air intake fan (2201) drives the airflow from other parts into the inside of the air intake mechanism (22).

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