High temperature multifunctional water flow logging tool

Abstract

The present invention provides a high-temperature multifunctional water flow logging instrument, including a well body, a cable, a hook, a connecting ring, a detection structure and a detector. The present invention relates to the technical field of logging instruments. The present invention enables the detector to form a spiral rotation detection track in the well body through the synergistic effect of a rotating unit and an adjusting unit in the detection structure. The spiral rotation track can ensure that the detector evenly and comprehensively covers the well body, thereby obtaining more complete formation information and reducing detection blind spots. At the same time, during the detection process, when the adjusting unit continuously adjusts the position of the detector, the fan blades of the cooling unit can always move closely with the detector and maintain a constant equal distance. This synchronous movement design ensures effective heat dissipation of the detector, thereby maintaining its optimal working state.

Description

Technical Field

[0001] The invention relates to the technical field of well logging instruments, in particular to a high-temperature multifunctional water flow well logging instrument. Background Art

[0002] In the oil and gas exploration industry, well logging technology plays a vital role. It is a key technical means to obtain information about the internal structure of the well body and formation. The application of this technology is extremely important for evaluating the distribution of mineral resources, determining the physical properties and chemical composition of the formation, and guiding the development and production of oil and gas fields.

[0003] Traditional logging instruments mostly use fixed detection methods, which means that their detection range and angle in the well are limited and they cannot conduct comprehensive detection in the well. This limitation leads to incomplete logging data, which affects the accurate judgment and analysis of formation characteristics. Summary of the invention

[0004] The purpose of the present invention is to provide a high-temperature multifunctional water flow logging instrument, which can solve the problem that most traditional logging instruments adopt a fixed detection method, which means that their detection range and angle in the well are limited and they cannot perform comprehensive detection in the well. This limitation leads to incompleteness of logging data, thereby affecting the accurate judgment and analysis of formation characteristics.

[0005] The present invention provides a high-temperature multifunctional water flow logging instrument, comprising a well body, a cable, a hook, a connecting ring, a detection structure and a detector, wherein the hook is fixedly arranged at one end of the cable, the connecting ring is movably connected to the hook, the detection structure is fixedly arranged at the bottom end of the connecting ring, and the detection structure is detachably connected to the hook at the cable end through the connecting ring, the detector is connected to the detection structure, the detection structure and the detector are lowered into the well body through the cable, the detection structure comprises a rotating unit and an adjusting unit, the rotating unit is fixedly connected to the bottom of the connecting ring, the adjusting unit is connected to the rotating unit, the detector is connected to the adjusting unit, the adjusting unit can drive the detector to realize lateral linear motion, the rotating unit can drive the adjusting unit and the detector to rotate around the center of the well body, and when the rotating unit and the adjusting unit work together, the detector can form a spiral rotating detection trajectory in the well body.

[0006] Preferably, the rotating unit includes a supporting cylinder, a protective cylinder, a first motor, a driving shaft, a connecting plate and a rotating shaft, the protective cylinder is fixedly arranged at the outer top of the supporting cylinder, the first motor is fixedly arranged inside the protective cylinder, the driving shaft is rotatably connected to the top of the supporting cylinder through a bearing, and the top of the driving shaft is fixedly connected to the driving end of the first motor, the top of the connecting plate is fixedly connected to the bottom of the driving shaft, the rotating shaft is rotatably connected to the bottom of the supporting cylinder through a bearing, and the top of the rotating shaft is fixedly connected to the bottom of the connecting plate, and the adjusting unit is fixedly arranged at the bottom of the rotating shaft.

[0007] Preferably, the adjusting unit includes a support box, a mounting frame, a second motor, a screw, a limit slide, a moving block and a connecting frame, the bottom of the support box is an open structure, and the support box is fixedly arranged at the bottom end of the rotating shaft, the mounting frame is fixedly arranged on the left side outside the support box, the second motor is fixedly arranged on the left side outside the mounting frame, the screw is rotatably connected to the left and right sides of the support box and the left side of the mounting frame through bearings, and the second motor is fixedly connected to one end of the screw, the limit slide is fixedly arranged between the left and right sides in the support box, and the limit slide is located below the screw, the moving block is movably connected to the screw and the limit slide, the connecting frame is fixedly arranged at the bottom of the moving block, and the detector is fixedly arranged on the top of the connecting frame.

[0008] Preferably, the detection structure further comprises a temperature-lowering unit, the temperature-lowering unit is connected to the screw rod, and the temperature-lowering unit and the screw rod in the adjustment unit share the same driving source.

[0009] Preferably, the cooling unit includes a supporting shell, a fan blade driving member, fan blades, a transmission shaft, a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear. The supporting shell is fixedly arranged on the outer bottom of the mounting frame, and the fan blade driving member is rotatably connected to the left and right sides of the supporting shell and the left side of the connecting frame through bearings respectively. The fan blades are fixedly arranged at one end of the fan blade driving member close to the detector, and the transmission shaft is rotatably connected to the bottom of the mounting frame through bearings. The first bevel gear is fixedly arranged on the screw, the second bevel gear is fixedly arranged at the top of the transmission shaft, and the second bevel gear is meshed with the first bevel gear, the third bevel gear is fixedly arranged at the bottom end of the transmission shaft, and the fourth bevel gear is fixedly arranged on the transmission shaft, and the fourth bevel gear is meshed with the third bevel gear.

[0010] Preferably, the fan blade driving component includes a support tube, two sliders and an extension rod, one side of the support tube is an open structure, and two slideways are provided on the inner wall of the support tube, the support tube is rotatably connected to the left and right sides of the support shell through bearings, the two sliders are slidably connected to the two limit grooves respectively, the extension rod is fixedly arranged between the two sliders, the extension rod is rotatably connected to the left side of the connecting frame through a bearing, and the extension rod can be moved in the support tube through the slider and the slideway.

[0011] Preferably, the rotating unit further comprises a circular slide rail, and the connecting plate is slidably connected to the circular slide rail.

[0012] Preferably, the connecting frame is an inverted L-shaped structure.

[0013] Preferably, two positioning units are fixedly provided on the left and right sides of the protective cylinder body, and the two positioning units are symmetrically arranged on the left and right sides.

[0014] Preferably, the positioning unit comprises an electric telescopic rod and a fixed head, the electric telescopic rod is fixedly arranged on the left side outside the protective cylinder, and the fixed head is fixedly arranged on the driving end of the electric telescopic rod.

[0015] The present invention is provided here by improvement, and compared with the prior art, has the following improvements and advantages: the present invention enables the detector to form a spiral rotation detection track in the well body through the synergistic effect of the rotating unit and the adjusting unit in the detection structure, and the spiral rotation track can ensure that the detector evenly and comprehensively covers the well body, thereby obtaining more complete formation information and reducing the detection blind area. At the same time, during the detection process, when the adjusting unit continuously adjusts the position of the detector, the fan blades of the cooling unit can always follow the detector and maintain a constant equal distance. This synchronous movement design ensures effective heat dissipation of the detector, thereby maintaining its optimal working state. Since the adjusting unit and the cooling unit share the same power source, when the adjusting unit rotates to adjust the position of the detector, the cooling unit will also work synchronously, continuously and in real time cooling the detector, ensuring synchronous work with the detector, and ensuring stable operation of the detector, avoiding excessive internal temperature due to continuous operation of the detector, thereby causing performance degradation or equipment damage, and extending the service life and stable operation time of the detector. Finally, through the setting of the positioning unit, the device can be accurately positioned in the well body, avoiding shaking of the detector during detection, thereby causing unstable detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the axonometric structure of the detection structure of the high-temperature multifunctional water flow logging instrument when it is lowered;

[0018] Figure 2 It is an axonometric structural diagram of the detection structure of the high-temperature multifunctional water flow logging instrument;

[0019] Figure 3 It is a schematic diagram of the axonometric structure of the positioning unit of the high-temperature multifunctional water flow logging instrument during positioning;

[0020] Figure 4 It is a schematic diagram of the main cross-sectional structure of the rotating unit of the high-temperature multifunctional water flow logging tool;

[0021] Figure 5 It is a schematic diagram of the main cross-sectional structure of the regulating unit and the cooling unit of the high-temperature multifunctional water flow logging instrument;

[0022] Figure 6 It is a schematic diagram of the axonometric structure of the fan blade drive component of the high-temperature multifunctional water flow logging instrument;

[0023] Figure 7 It is a top view and cross-sectional structure schematic diagram of the fan blade driving component of the high-temperature multifunctional water flow logging instrument;

[0024] Figure 8 It is a schematic diagram of the axonometric structure of the chute of the high-temperature multifunctional water flow logging instrument;

[0025] Fig. 9 This is a structural schematic diagram of the spiral trajectory formed by the detector of the high-temperature multifunctional water flow logging instrument during detection.

[0026] Description of reference numerals:

[0027] 1. Well body; 2. Cable; 3. Hook; 4. Connecting ring; 5. Detector; 6. Rotating unit; 61. Support cylinder; 62. Protective cylinder; 63. First motor; 64. Driving shaft; 65. Connecting plate; 66. Rotating shaft; 67. Circular slide rail; 7. Adjusting unit; 71. Support box; 72. Mounting frame; 73. Second motor; 74. Screw; 75. Limiting slide bar; 76. Moving block; 77. Connecting frame; 8. Cooling unit; 81. Support shell; 82. Blade driving member; 83. Blade; 84. Transmission shaft; 85. First bevel gear; 86. Second bevel gear; 87. Third bevel gear; 88. Fourth bevel gear; 82-1. Support tube; 82-2. Sliding block; 82-3. Extension rod; 9. Positioning unit; 91. Electric telescopic rod; 92. Fixed head. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-9 The present invention provides a technical solution: a high-temperature multifunctional water flow logging instrument, comprising a well body 1, a cable 2, a hook 3, a connecting ring 4, a detection structure and a detector 5, wherein the hook 3 is fixedly arranged at one end of the cable 2, the connecting ring 4 is movably connected to the hook 3, the detection structure is fixedly arranged at the bottom end of the connecting ring 4, and the detection structure is detachably connected to the hook 3 at the end of the cable 2 through the connecting ring 4, so as to facilitate the installation and disassembly of the detection structure, the detector 5 is connected to the detection structure, the detection structure and the detector 5 are lowered into the well body 1 through the cable 2, and the information of the inner wall and the formation of the well body 1 is collected through the detection structure and the detector 5, the detection structure comprises a rotating unit 6 and an adjusting unit 7, and the rotating unit 6 is fixed to the bottom of the connecting ring 4 The adjusting unit 7 is connected with the rotating unit 6, and the detector 5 is connected with the adjusting unit 7. The adjusting unit 7 can drive the detector 5 to realize lateral linear motion. During the operation of the detector 5, the adjusting unit 7 can continuously change the position of the detector 5. The rotating unit 6 can drive the adjusting unit 7 and the detector 5 to rotate around the center of the well body 1, and when the rotating unit 6 and the adjusting unit 7 work together, the detector 5 can form a spiral rotation detection trajectory in the well body 1. Compared with traditional fixed-point detection or setting several fixed-diameter point rotation detection, this specific spiral rotation detection can ensure that the detector 5 evenly and comprehensively covers the well body 1, thereby obtaining more complete formation information and reducing detection blind spots.

[0032] Specifically, the rotating unit 6 includes a supporting cylinder 61, a protective cylinder 62, a first motor 63, a driving shaft 64, a connecting plate 65 and a rotating shaft 66. The protective cylinder 62 is fixedly arranged at the outer top of the supporting cylinder 61 for providing protection for the internal first motor 63. The first motor 63 is fixedly arranged in the protective cylinder 62. The driving shaft 64 is rotatably connected to the top of the supporting cylinder 61 through a bearing, and the top end of the driving shaft 64 is fixedly connected to the driving end of the first motor 63. The first motor 63 is used to provide rotational power to the driving shaft 64. The top of the connecting plate 65 is fixedly connected to the bottom end of the driving shaft 64. The rotating shaft 66 is rotatably connected to the bottom of the supporting cylinder 61 through a bearing, and the top end of the rotating shaft 66 is fixedly connected to the bottom of the connecting plate 65 to realize the transmission of the rotating motion. The adjusting unit 7 is fixedly arranged at the bottom end of the rotating shaft 66.

[0033] The working principle of the rotating unit 6 is to generate rotational power through the first motor 63, and the driving shaft 64 transmits the power of the first motor 63 to the rotating shaft 66. The rotating shaft 66 drives the adjusting unit 7 and the detector 5 to rotate around the center of the well body 1, thereby realizing all-round detection of the well body 1.

[0034] Specifically, the adjusting unit 7 includes a supporting box 71, a mounting frame 72, a second motor 73, a screw 74, a limiting slide bar 75, a moving block 76 and a connecting frame 77. The bottom of the supporting box 71 is an open structure, and the supporting box 71 is fixedly arranged at the bottom end of the rotating shaft 66. The supporting box 71 provides a stable support and installation platform for other components of the adjusting unit 7. The mounting frame 72 is fixedly arranged on the left side outside the supporting box 71 for fixing the second drive motor. The second motor 73 is fixedly arranged on the left side outside the mounting frame 72. The screw 74 is rotatably connected to the left and right sides of the supporting box 71 and the left side of the mounting frame 72 through bearings. The surface of the screw 74 located in the mounting frame 72 is not provided with threads, and its surface is smooth. The second motor 73 and the screw 74 One end of the movable block 76 is fixedly connected, the second motor 73 is used to drive the screw rod 74 to rotate, the limit slide bar 75 is fixedly arranged between the left and right sides of the support box 71, and the limit slide bar 75 is located below the screw rod 74, the moving block 76 is movably connected to the screw rod 74 and the limit slide bar 75 respectively, the moving block 76 is threadedly connected to the screw rod 74, and is slidably connected to the limit slide bar 75, the limit slide bar 75 is used to limit the movement range of the moving block 76 to ensure its axial movement along the limit slide bar 75, the connecting frame 77 is fixedly arranged at the bottom of the moving block 76 to support the detector 5, the detector 5 is fixedly arranged on the top of the connecting frame 77, and forms a whole with the moving block 76, so as to realize the lateral linear movement of the detector 5 under the drive of the adjustment unit 7.

[0035] During the detection process, the adjustment unit 7 drives the detector 5 to perform reciprocating horizontal linear movement. The driving end of the second motor 73 drives the screw 74 to rotate. Due to the restriction of the limit slide bar 75 on the limit block, the moving block 76 can only drive the connecting frame 77 and the detector 5 to perform overall linear movement.

[0036] Specifically, the detection structure also includes a cooling unit 8 for cooling the detector 5. The cooling unit 8 is connected to the screw 74, and the cooling unit 8 and the screw 74 in the adjustment unit 7 share the same driving source. When the detector 5 detects in the well body 1, the adjustment unit 7 drives the detector 5 to move horizontally and linearly through the screw 74. At the same time, the cooling unit 8 also moves with the movement of the screw 74, and always keeps a certain distance from the detector 5. Since the cooling unit 8 and the detector 5 share the same driving source, it can also work synchronously with the adjustment unit 7 to ensure that the detector 5 can be continuously and effectively cooled, and avoid the performance degradation caused by the accumulation of heat inside the detector 5.

[0037] Specifically, the cooling unit 8 includes a support shell 81, a fan blade drive 82, a fan blade 83, a transmission shaft 84, a first bevel gear 85, a second bevel gear 86, a third bevel gear 87 and a fourth bevel gear 88. The support shell 81 is fixedly arranged on the outer bottom of the mounting frame 72. The support shell 81 is used to stably support the fan blade drive 82. The fan blade drive 82 is respectively rotatably connected to the left and right sides of the support shell 81 and the left side of the connecting frame 77 through bearings to ensure that the fan blade drive 82 remains stable during rotation. The fan blade 83 is fixedly arranged at one end of the fan blade drive 82 close to the detector 5. The fan blade 83 can rotate under the drive of the fan blade drive 82, thereby cooling the detector 5. The fan blade drive 82 is a retractable design. The retractable fan blade drive 82 can ensure that the fan blade 83 is always It follows the movement of the detector 5 and will not affect the rotation of the fan blades 83. The transmission shaft 84 is rotatably connected to the bottom of the mounting frame 72 through a bearing. The bearing connection ensures that the mounting frame 72 can stably support the transmission shaft 84 and ensure that the transmission shaft 84 can stably rotate on the mounting frame 72. The first bevel gear 85 is fixedly arranged on the screw 74, the second bevel gear 86 is fixedly arranged on the top of the transmission shaft 84, and the second bevel gear 86 is meshed with the first bevel gear 85, the third bevel gear 87 is fixedly arranged on the bottom end of the transmission shaft 84, and the fourth bevel gear 88 is meshed with the third bevel gear 87. This gear meshing design enables the fan blade driving component 82 to rotate through the rotation of the transmission shaft 84, thereby generating airflow and cooling the detector 5.

[0038] Specifically, the fan blade driving member 82 includes a support tube 82-1, two sliders 82-2 and an extension rod 82-3. One side of the support tube 82-1 is an open structure, and two slideways are provided on the inner wall of the support tube 82-1. The support tube 82-1 is rotatably connected to the left and right sides of the support shell 81 through bearings. The two sliders 82-2 are slidably connected to the two limit grooves respectively. The slideways limit the moving range of the sliders 82-2, so that the sliders 82-2 can only slide on the slideways of the support tube 82-1. The extension rod 82-3 is fixedly arranged between the two sliders 82-2. The extension rod 82-3 is rotatably connected to the left side of the connecting frame 77 through a bearing, and the extension rod 82-3 can be moved in the support tube 82-1 through the slider 82-2 and the slideway. The extension rod 82-3 can move in the support tube 82-1, thereby driving the slider 82-2 and the connecting frame 77 to move, so that the fan blade 83 can follow the movement of the detector 5, keeping the relative position between the fan blade 83 and the detector 5 unchanged. Due to the limiting effect of the slider 82-2 and the slideway, the movement of the extension rod 82-3 will not affect the rotation of the support tube 82-1. The extension rod 82-3 can rotate synchronously with the support tube 82-1, ensuring that the fan drive 82 can generate effective cooling airflow during rotation to cool the detector 5.

[0039] The cooling unit 8 works synchronously with the adjusting unit 7. When the detector 5 is detecting, the second motor 73 in the adjusting unit 7 will continue to work, thereby constantly changing the position of the detector 5. When the adjusting unit 7 is working, the moving block 76 will drive the connecting frame 77, the extension rod 82-3 and the detector 5 to move horizontally back and forth. When the extension rod 82-3 moves, it will move in the support tube 82-1, so as to always ensure the distance between the fan blade 83 and the detector 5, thereby ensuring the cooling effect. At the same time, the screw 74 in the adjusting unit 7 rotates When the screw 74 is in motion, the second bevel gear 86 meshing with the first bevel gear 85 will be driven to rotate, and the second bevel gear 86 will drive the transmission shaft 84 and the third bevel gear 87 on the transmission shaft 84 to rotate. The third bevel gear 87 will synchronously drive the fourth bevel gear 88 meshing with it to rotate. At this time, the fourth bevel gear 88 will drive the support tube 82-1 and the extension rod 82-3 in the fan blade drive 82 to rotate, thereby driving the fan blade 83 to rotate. The telescopic movement of the extension rod 82-3 and the rotation of the fan blade 83 are carried out synchronously.

[0040] Specifically, the rotating unit 6 also includes a circular slide rail 67, and the connecting plate 65 is slidably connected to the circular slide rail 67. The connecting plate 65 is a circular structure, and the connecting plate 65 can rotate in the circular slide rail 67. The function of the circular slide rail 67 is to support the connecting plate 65 and reduce the pressure on the driving end of the first motor 63.

[0041] Specifically, the connecting frame 77 is an inverted L-shaped structure, and the inverted L-shaped connecting frame 77 can support the detector 5 and the fan blade driving component 82 at the same time.

[0042] Specifically, two positioning units 9 are fixedly arranged on the left and right sides outside the protective cylinder 62. The two positioning units 9 are symmetrically arranged on the left and right sides. The two positioning units 9 can position the detection structure when the cable 2 is lowered to the accurate position to avoid shaking of the detection structure, thereby affecting the detection accuracy of the detector 5.

[0043] Specifically, the positioning unit 9 includes an electric telescopic rod 91 and a fixed head 92 . The electric telescopic rod 91 is fixedly disposed on the left side outside the protective cylinder 62 , and the fixed head 92 is fixedly disposed on the driving end of the electric telescopic rod 91 .

[0044] When the positioning unit 9 is performing positioning, the electric telescopic rod 91 can drive the fixed head 92 to move toward the inner wall of the well body 1, thereby positioning the detection structure and the detector 5, and ensuring the stability of the detection structure during operation.

[0045] Working principle:

[0046] The detection structure is detachably connected to the hook 3 at the end of the cable 2 through the connecting ring 4, which facilitates the installation and removal of the detection structure. The detector 5 is connected to the detection structure and lowered into the well body 1 through the cable 2 to collect information on the inner wall and formation of the well body 1. When the detection structure is lowered to the specified depth, the positioning unit 9 will be positioned. When the positioning unit 9 is positioning, the electric telescopic rod 91 can drive the fixed head 92 to move toward the inner wall of the well body 1, thereby positioning the detection structure and the detector 5 on the inner wall of the well body 1, ensuring the stability of the detection structure during operation.

[0047] The detection structure includes a rotating unit 6 and an adjusting unit 7. The adjusting unit 7 is connected to the rotating unit 6, and the rotating unit 6 and the adjusting unit 7 work synchronously.

[0048] The working principle of the rotating unit 6 is to generate a rotating power through the first motor 63, and the driving shaft 64 transmits the power of the first motor 63 to the rotating shaft 66, and the rotating shaft 66 drives the adjusting unit 7 and the detector 5 to rotate around the center of the well body 1, thereby realizing the full range detection of the well body 1. And during the detection process, the driving end of the second motor 73 in the adjusting unit 7 drives the screw 74 to rotate. Due to the restriction of the limiting slide bar 75 on the limiting block, the moving block 76 can only drive the connecting frame 77 and the detector 5 to move linearly as a whole.

[0049] When the rotating unit 6 works together with the adjusting unit 7, the detector 5 can form a spiral rotating detection trajectory in the well body 1. Compared with traditional fixed-point detection or setting several fixed-diameter point rotation detection, this specific spiral rotating detection can ensure that the detector 5 evenly and comprehensively covers the well body 1, thereby obtaining more complete formation information and reducing detection blind spots.

[0050] At the same time, the cooling unit 8 also works synchronously with the rotating unit 6 and the adjusting unit 7. The cooling unit 8 is installed on the adjusting unit 7. The cooling unit 8 and the adjusting unit 7 rotate simultaneously under the drive of the rotating unit 6. When the detector 5 is detecting, the second motor 73 in the adjusting unit 7 will continue to work, thereby constantly changing the position of the detector 5. At this time, the moving block 76 will drive the connecting frame 77, the extension rod 82-3 and the detector 5 to move horizontally back and forth. Since the connecting frame 77 and the extension rod 82-3 are connected by a bearing, the extension rod 82-3 will move in the support tube 82-1 when moving, so as to always ensure the distance between the fan blade 83 and the detector 5, thereby ensuring the cooling effect. At the same time, when the screw rod 74 in the adjustment unit 7 rotates, the screw rod 74 drives the second bevel gear 86 meshed therewith to rotate through the first bevel gear 85, and the second bevel gear 86 drives the transmission shaft 84 and the third bevel gear 87 on the transmission shaft 84 to rotate, and the third bevel gear 87 synchronously drives the fourth bevel gear 88 meshed therewith to rotate, and at this time, the fourth bevel gear 88 drives the support tube 82-1 and the extension rod 82-3 in the fan blade driving member 82 to rotate, thereby driving the fan blade 83 to rotate. The telescopic movement of the extension rod 82-3 and the rotation of the fan blade 83 are performed synchronously.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. High temperature multifunctional water flow logging tool, characterized in that: The invention comprises a well body (1), a cable (2), a hook (3), a connecting ring (4), a detection structure and a detector (5), wherein the hook (3) is fixedly arranged at one end of the cable (2), the connecting ring (4) is movably connected to the hook (3), the detection structure is fixedly arranged at the bottom end of the connecting ring (4), and the detection structure is detachably connected to the hook (3) at the end of the cable (2) through the connecting ring (4), the detector (5) is connected to the detection structure, the detection structure and the detector (5) are lowered into the well body (1) through the cable (2), and the detection structure comprises a rotating unit ( The invention relates to a method for preparing a wellbore (1) and a detection device (5) for detecting a wellbore (1). The method comprises: providing a detection device (5) for detecting a wellbore (1) and a detection device (6), wherein the detection device (5) is connected to the detection device (5) and the detection device (6), wherein the detection device (5) is connected to the detection device (5) and the detection device (6), wherein the detection device (5) is connected to the detection device (5) and the detection device (6), wherein the detection device (5) is connected to the detection device (5) and the detection device (6), wherein the detection device (5) is connected to the detection device (5) and the detection device (5 ...

2. The high-temperature multifunctional water flow logging tool according to claim 1, characterized in that: The rotating unit (6) comprises a supporting cylinder (61), a protective cylinder (62), a first motor (63), a driving shaft (64), a connecting plate (65) and a rotating shaft (66); the protective cylinder (62) is fixedly arranged at the top of the supporting cylinder (61); the first motor (63) is fixedly arranged in the protective cylinder (62); the driving shaft (64) is rotatably connected to the top of the supporting cylinder (61) via a bearing, and the top of the driving shaft (64) is fixedly connected to the driving end of the first motor (63); the top of the connecting plate (65) is fixedly connected to the bottom of the driving shaft (64); the rotating shaft (66) is rotatably connected to the bottom of the supporting cylinder (61) via a bearing, and the top of the rotating shaft (66) is fixedly connected to the bottom of the connecting plate (65); and the adjusting unit (7) is fixedly arranged at the bottom of the rotating shaft (66).

3. The high-temperature multifunctional water flow logging tool according to claim 2, characterized in that: The adjusting unit (7) comprises a supporting box (71), a mounting frame (72), a second motor (73), a screw rod (74), a limiting slide rod (75), a moving block (76) and a connecting frame (77); the bottom of the supporting box (71) is an open structure, and the supporting box (71) is fixedly arranged at the bottom end of the rotating shaft (66); the mounting frame (72) is fixedly arranged at the left side outside the supporting box (71); the second motor (73) is fixedly arranged at the left side outside the mounting frame (72); the screw rod (74) is respectively connected to the supporting box (71) and the second motor (73) is fixedly arranged at the left side outside the mounting frame (72); The left and right sides and the left side of the mounting frame (72) are rotatably connected via bearings, and the second motor (73) is fixedly connected to one end of the screw rod (74), the limiting slide rod (75) is fixedly arranged between the left and right sides in the supporting box (71), and the limiting slide rod (75) is located below the screw rod (74), the moving block (76) is movably connected to the screw rod (74) and the limiting slide rod (75), respectively, the connecting frame (77) is fixedly arranged at the bottom of the moving block (76), and the detector (5) is fixedly arranged at the top of the connecting frame (77).

4. The high-temperature multifunctional water flow logging tool according to claim 1, characterized in that: The detection structure further comprises a temperature-reducing unit (8), wherein the temperature-reducing unit (8) is connected to a screw rod (74), and the temperature-reducing unit (8) and the screw rod (74) in the adjustment unit (7) share the same driving source.

5. The high-temperature multifunctional water flow logging tool according to claim 4, characterized in that: The cooling unit (8) comprises a supporting shell (81), a fan blade driving member (82), a fan blade (83), a transmission shaft (84), a first bevel gear (85), a second bevel gear (86), a third bevel gear (87) and a fourth bevel gear (88); the supporting shell (81) is fixedly arranged on the outer bottom of the mounting frame (72); the fan blade driving member (82) is rotatably connected to the left and right sides of the supporting shell (81) and the left side of the connecting frame (77) through bearings; the fan blade (83) is fixedly arranged on the fan blade driving member (82) near the detection The transmission shaft (84) is rotatably connected to the bottom of the mounting frame (72) via a bearing, the first bevel gear (85) is fixedly arranged on the screw rod (74), the second bevel gear (86) is fixedly arranged on the top of the transmission shaft (84), and the second bevel gear (86) is meshed with the first bevel gear (85), the third bevel gear (87) is fixedly arranged on the bottom end of the transmission shaft (84), and the fourth bevel gear (88) is fixedly arranged on the transmission shaft (84), and the fourth bevel gear (88) is meshed with the third bevel gear (87).

6. The high-temperature multifunctional water flow logging tool according to claim 5, characterized in that: The fan blade driving member (82) comprises a support tube (82-1), two sliders (82-2) and an extension rod (82-3); one side of the support tube (82-1) is an open structure, and two slideways are provided on the inner wall of the support tube (82-1); the support tube (82-1) is rotatably connected to the left and right sides of the support shell (81) through bearings; the two sliders (82-2) are slidably connected to the two slideways respectively; the extension rod (82-3) is fixedly arranged between the two sliders (82-2); the extension rod (82-3) is rotatably connected to the left side of the connecting frame (77) through a bearing; and the extension rod (82-3) can be moved in the support tube (82-1) through the slider (82-2) and the slideway.

7. The high-temperature multifunctional water flow logging tool according to claim 6, characterized in that: The rotating unit (6) further comprises a circular slide rail (67), and the connecting plate (65) is slidably connected to the circular slide rail (67).

8. The high temperature multifunctional water flow logging tool according to claim 7, characterized in that: The connecting frame (77) is an inverted L-shaped structure.

9. The high-temperature multifunctional water flow logging tool according to claim 8, characterized in that: Two positioning units (9) are fixedly arranged on the left and right sides of the protection cylinder (62), and the two positioning units (9) are symmetrically arranged on the left and right sides.

10. The high temperature multifunctional water flow logging tool according to claim 9, characterized in that: The positioning unit (9) comprises an electric telescopic rod (91) and a fixed head (92); the electric telescopic rod (91) is fixedly arranged on the left side outside the protective cylinder (62); and the fixed head (92) is fixedly arranged on the driving end of the electric telescopic rod (91).

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