Portable monitoring device for petroleum well logging

Abstract

The utility model discloses a portable monitoring device for petroleum logging, which belongs to the technical field of logging and comprises a second shell, a supporting rod is fixedly mounted at the corner of the lower end of the second shell, a laser range finder is mounted on the side edge of the upper end of the second shell, and a petroleum logging instrument is arranged in the center of the upper end of the second shell. The limiting seat position adjusting mechanism is arranged, the position of the limiting seat can be conveniently adjusted through the limiting seat position adjusting mechanism, and therefore the device can abut against the inner wall of a petroleum well, a petroleum logging instrument is located in the center of the petroleum well, and follow-up measurement work can be conveniently carried out; according to the petroleum logging instrument fixing mechanism, the petroleum logging instrument can be conveniently fixed through the petroleum logging instrument fixing mechanism so that the petroleum logging instrument can be conveniently used, and meanwhile the petroleum logging instrument can be detached through the petroleum logging instrument fixing mechanism so that the petroleum logging instrument can be conveniently maintained and cleaned.

Description

Technical Field

[0001] This utility model belongs to the field of well logging technology, specifically relating to a portable monitoring device for oil well logging. Background Technology

[0002] Well logging is a method of measuring geophysical parameters by utilizing the electrochemical, electrical, acoustic, and radioactive properties of rock formations. In oil drilling, well logging, also known as well completion logging, must be carried out after drilling to the designed well depth to obtain various petroleum geological and engineering technical data, which serve as the original data for well completion and oilfield development.

[0003] Chinese Patent Application No. 202121942297.5 discloses a portable monitoring device for oil well logging, including a housing. Two laser rangefinders are fixedly connected to the upper surface of the housing, and an oil well logging instrument is installed inside the housing. Placement slots are provided on both sides of the housing, and limit seats are provided on both sides. A rotating shaft is rotatably connected to the inner wall of the housing. Under the action of a centering component, the portable monitoring device for oil well logging activates two angle adjustment motors, causing two sliders to slide in opposite directions on the inner wall of the slots. This causes the limit seats to unfold to both sides, pressing against the side walls and ensuring that the two limit seats are at a suitable unfolding distance. This ensures that the oil well logging instrument is in a centered position, resulting in more accurate detection results.

[0004] Although the aforementioned patent enables the use of the device, its design for fixing the outer shell to the oil well is relatively inconvenient, and the adjustment structure between the limit seats is relatively inconvenient, as it can only adjust two sets of limit seats; the fixing structure of the oil logging instrument is not effective and is relatively inconvenient to disassemble. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a portable monitoring device for oil well logging, which facilitates the positioning and fixing of the outer casing to the oil well and the installation and fixation of the oil well logging instrument.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable monitoring device for oil well logging, comprising a second outer shell, a support rod fixedly installed at the lower corner of the second outer shell, a laser rangefinder installed on the upper side of the second outer shell, an oil well logging instrument set at the upper center of the second outer shell, the oil well logging instrument and the second outer shell being fixedly connected by an oil well logging instrument fixing mechanism, a limit seat position adjustment mechanism set at the lower end of the support rod, and a first outer shell set at the lower end of the limit seat position adjustment mechanism.

[0007] Preferably, the limiting seat position adjustment mechanism includes a mounting box, a small bevel gear, a limiting seat body, a telescopic component, a large bevel gear, a rotating shaft, and a motor. The lower end of the support rod is provided with a mounting box, and the upper center of the mounting box is equipped with a motor by screws. The output end of the motor is provided with a rotating shaft, and the lower end of the rotating shaft is provided with a large bevel gear. Four sets of small bevel gears are meshed with the side of the large bevel gear, and a telescopic component is provided on the side of the small bevel gear. The other end of the telescopic component is provided with a limiting seat body.

[0008] Preferably, the telescopic assembly includes a threaded rod, a bearing, a telescopic rod, and a sleeve rod. Four sets of sleeve rods are fixedly installed on the side of the mounting box, and a threaded rod is installed on the side of the small bevel gear. The threaded rod is rotatably connected to the mounting box through a bearing. The other end of the threaded rod is threadedly connected to a telescopic rod, and the other end of the telescopic rod is fixed to the side of the limiting seat body.

[0009] Preferably, the telescopic assembly further includes a limiting groove and a limiting block, with a limiting block fixed to one side of the telescopic rod, and a limiting groove corresponding to the limiting block being formed on the inner wall of the sleeve rod.

[0010] Preferably, the oil well logging tool fixing mechanism includes a mounting groove, a sliding plate, a spring, a central rod, an adjusting component, a fixing block, a fixing hole, a fixing groove, and a fixing rod. A fixing block is installed at the lower end of the oil well logging tool, and a fixing hole is opened on the side of the fixing block. A fixing groove corresponding to the fixing block is opened at the upper end of the outer shell. A sliding plate is opened inside the upper side of the outer shell. A central rod is installed on the inner side of the sliding plate. The sliding plate is slidably connected to the surface of the central rod. A spring is sleeved on the surface of the central rod on the side of the sliding plate. A fixing rod is installed at the center of the other side of the sliding plate. Adjusting components are provided on the other two sides of the sliding plate.

[0011] Preferably, the adjustment component includes an adjustment block and an adjustment groove. The adjustment block is provided on the side of the slide plate, and the adjustment groove corresponding to the adjustment block is opened at the upper side of the outer shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model incorporates a limit seat position adjustment mechanism, which allows for convenient adjustment of the limit seat position, enabling the device to rest against the inner wall of the oil well and placing the oil logging instrument at the center of the oil well for subsequent measurement work.

[0014] 2. This utility model incorporates a fixing mechanism for the oil well logging instrument. This mechanism facilitates the fixing of the oil well logging instrument for use. Furthermore, the mechanism also allows for the disassembly of the oil well logging instrument for maintenance and cleaning. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a three-dimensional sectional view of the position adjustment mechanism of the limiting seat of this utility model;

[0017] Figure 3 This is an enlarged view of the telescopic component of this utility model;

[0018] Figure 4 This is a perspective view of the fixing mechanism of the oil well logging instrument of this utility model;

[0019] Figure 5 This is a perspective view of the skateboard position of this utility model;

[0020] In the diagram: 1. Outer shell one; 2. Limit seat position adjustment mechanism; 21. Mounting box; 22. Small bevel gear; 23. Limit seat body; 24. Telescopic assembly; 241. Threaded rod; 242. Bearing; 243. Limit groove; 244. Telescopic rod; 245. Limit block; 246. Sleeve rod; 25. Large bevel gear; 26. Rotating shaft; 27. Motor; 3. Support rod; 4. Outer shell two; 5. Laser rangefinder; 6. Oil well logging instrument; 7. Oil well logging instrument fixing mechanism; 71. Mounting groove; 72. Slide plate; 73. Spring; 74. Center rod; 75. Adjustment assembly; 751. Adjustment block; 752. Adjustment groove; 76. Fixing block; 77. Fixing hole; 78. Fixing groove; 79. Fixing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-5 The present invention provides the following technical solution: a portable monitoring device for oil well logging, comprising a second outer shell 4, a support rod 3 fixedly installed at the lower corner of the second outer shell 4, a laser rangefinder 5 installed on the upper side of the second outer shell 4, an oil well logging instrument 6 set at the upper center of the second outer shell 4, the oil well logging instrument 6 and the second outer shell 4 being fixedly connected by an oil well logging instrument fixing mechanism 7, a limit seat position adjustment mechanism 2 set at the lower end of the support rod 3, and a first outer shell 1 set at the lower end of the limit seat position adjustment mechanism 2.

[0024] Specifically, the limit seat position adjustment mechanism 2 includes a mounting box 21, a small bevel gear 22, a limit seat body 23, a telescopic component 24, a large bevel gear 25, a rotating shaft 26, and a motor 27. The mounting box 21 is located at the lower end of the support rod 3. The motor 27 is mounted to the upper center of the mounting box 21 via screws. The rotating shaft 26 is located at the output end of the motor 27. The large bevel gear 25 is located at the lower end of the rotating shaft 26. Four sets of small bevel gears 22 are meshed with the side of the large bevel gear 25. The telescopic component 24 is located on the side of the small bevel gears 22. The limit seat body 23 is located at the other end of the telescopic component 24.

[0025] By adopting the above technical solution, when adjusting the position of the limiting seat body 23, the motor 27 is first turned on. The motor 27 drives the rotating shaft 26 to rotate through the output end. The rotating shaft 26 drives the large bevel gear 25 to rotate. The large bevel gear 25 drives the small bevel gear 22 to rotate. The small bevel gear 22 rotates in conjunction with the telescopic component 24 to extend and retract, thereby driving the limiting seat body 23 to abut against the inner wall of the oil well, so that the oil logging instrument 6 is in the center position of the oil well.

[0026] Specifically, the telescopic assembly 24 includes a threaded rod 241, a bearing 242, a telescopic rod 244, and a sleeve rod 246. Four sets of sleeve rods 246 are fixedly installed on the side of the mounting box 21, and a threaded rod 241 is installed on the side of the small bevel gear 22. The threaded rod 241 is rotatably connected to the mounting box 21 via the bearing 242. The other end of the threaded rod 241 is threadedly connected to the telescopic rod 244, and the other end of the telescopic rod 244 is fixed to the side of the limiting seat body 23.

[0027] By adopting the above technical solution, when the small bevel gear 22 rotates, it will drive the threaded rod 241 to rotate. Since the rotation directions of the four sets of small bevel gears 22 are not consistent, by adjusting the thread direction on the surface of the threaded rod 241, when the threaded rod 241 rotates, it will drive the telescopic rod 244 to slide outward inside the sleeve rod 246, thereby driving the limit seat body 23 to abut against the inner wall of the oil well.

[0028] Specifically, the telescopic assembly 24 also includes a limiting groove 243 and a limiting block 245. The limiting block 245 is fixed to one side of the telescopic rod 244, and the inner wall of the sleeve rod 246 is provided with a limiting groove 243 corresponding to the limiting block 245.

[0029] By adopting the above technical solution, when the telescopic rod 244 slides outward, it will drive the limiting block 245 to slide inside the limiting groove 243, thereby improving the stability of the telescopic rod 244 during the outward sliding process.

[0030] In this embodiment, when adjusting the position of the limiting seat body 23, the motor 27 is first turned on. The motor 27 drives the rotating shaft 26 to rotate through the output end. The rotating shaft 26 drives the large bevel gear 25 to rotate, and the large bevel gear 25 drives the small bevel gear 22 to rotate. The small bevel gear 22 rotates in conjunction with the telescopic component 24 to extend and retract, thereby causing the limiting seat body 23 to abut against the inner wall of the oil well, so that the oil logging instrument 6 is in the center position of the oil well. When the small bevel gear 22 rotates, it will drive the threaded rod 241 to rotate. Since the rotation directions of the four sets of small bevel gears 22 are not consistent, by adjusting the thread direction on the surface of the threaded rod 241, when the threaded rod 241 rotates, it will drive the telescopic rod 244 to slide outward inside the sleeve rod 246, thereby causing the limiting seat body 23 to abut against the inner wall of the oil well. When the telescopic rod 244 slides outward, it will drive the limiting block 245 to slide inside the limiting groove 243, thereby improving the stability of the telescopic rod 244 during the outward sliding process.

[0031] Example 2

[0032] The difference between this embodiment and Embodiment 1 is that the oil logging instrument fixing mechanism 7 includes a mounting groove 71, a sliding plate 72, a spring 73, a central rod 74, an adjusting component 75, a fixing block 76, a fixing hole 77, a fixing groove 78, and a fixing rod 79. A fixing block 76 is installed at the lower end of the oil logging instrument 6. A fixing hole 77 is provided on the side of the fixing block 76. A fixing groove 78 corresponding to the fixing block 76 is provided at the upper end of the outer casing 4. A sliding plate 72 is provided inside the upper side of the outer casing 4. A central rod 74 is installed on the inner side of the sliding plate 72. The sliding plate 72 is slidably connected to the surface of the central rod 74. A spring 73 is sleeved on the surface of the central rod 74 on the side of the sliding plate 72. A fixing rod 79 is installed at the center of the other side of the sliding plate 72. Adjusting components 75 are provided on the other two sides of the sliding plate 72.

[0033] By adopting the above technical solution, when fixing the oil logging instrument 6, firstly, the sliding plate 72 in the sliding mounting groove 71 slides on the surface of the central rod 74, and drives the spring 73 to compress, so that the fixing rod 79 is embedded in the interior of the mounting groove 71. Then, the fixing block 76 at the lower end of the oil logging instrument 6 is inserted into the interior of the fixing groove 78. At this time, the sliding plate 72 is released, the spring 73 rebounds, thereby driving the fixing rod 79 to be inserted into the interior of the fixing hole 77, so as to fix the fixing block 76.

[0034] Specifically, the adjustment component 75 includes an adjustment block 751 and an adjustment groove 752. The adjustment block 751 is provided on the side of the slide plate 72, and the adjustment groove 752 corresponding to the adjustment block 751 is provided on the upper side of the outer casing 4.

[0035] By adopting the above technical solution, the sliding plate 72 can be easily driven to slide by adjusting the adjusting block 751 inside the adjusting groove 752.

[0036] In this embodiment, when fixing the oil logging instrument 6, firstly, slide plate 72 in the sliding mounting groove 71 slides on the surface of the central rod 74, causing spring 73 to compress and fixing rod 79 to be embedded in the mounting groove 71. Then, the fixing block 76 at the lower end of the oil logging instrument 6 is inserted into the fixing groove 78. At this time, slide plate 72 is released, spring 73 rebounds, thereby driving fixing rod 79 to be inserted into fixing hole 77 to fix fixing block 76. By adjusting the adjusting block 751 inside the adjusting groove 752, slide plate 72 can be easily moved.

[0037] The structure and working principle of the laser rangefinder 5 and the oil well logging instrument 6 in this utility model have been disclosed in Chinese patent application No. 202121942297.5, which discloses a portable monitoring device for oil well logging. Its working principle is to test oil wells.

[0038] The working principle and usage process of this utility model are as follows: When adjusting the position of the limiting seat body 23, the motor 27 is first turned on. The motor 27 drives the rotating shaft 26 to rotate through the output end. The rotating shaft 26 drives the large bevel gear 25 to rotate, which in turn drives the small bevel gear 22 to rotate. The small bevel gear 22 rotates in conjunction with the telescopic component 24 to extend and retract, thereby causing the limiting seat body 23 to abut against the inner wall of the oil well, thus placing the oil logging instrument 6 in the center of the oil well. When the small bevel gear 22 rotates, it drives the threaded rod 241 to rotate. Since the rotation directions of the four sets of small bevel gears 22 are not consistent, the thread direction on the surface of the threaded rod 241 is adjusted. At this time, when the threaded rod 241 rotates, it drives the telescopic rod 244 to extend outward inside the sleeve rod 246. The sliding motion causes the limiting seat body 23 to press against the inner wall of the oil well. When the telescopic rod 244 slides outward, it causes the limiting block 245 to slide inside the limiting groove 243, thereby improving the stability of the telescopic rod 244 during the outward sliding process. When fixing the oil logging instrument 6, first slide the sliding plate 72 in the mounting groove 71. The sliding plate 72 slides on the surface of the central rod 74 and causes the spring 73 to compress, so that the fixing rod 79 is embedded in the mounting groove 71. Then, insert the fixing block 76 at the lower end of the oil logging instrument 6 into the fixing groove 78. At this time, release the sliding plate 72, and the spring 73 rebounds, thereby causing the fixing rod 79 to be inserted into the fixing hole 77 to fix the fixing block 76. By adjusting the adjusting block 751 inside the adjusting groove 752, the sliding plate 72 can be easily slid.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable monitoring device for oil well logging, comprising a second outer shell (4), wherein a support rod (3) is fixedly installed at the lower corner of the second outer shell (4), a laser rangefinder (5) is installed on the upper side of the second outer shell (4), and an oil well logging instrument (6) is disposed at the upper center of the second outer shell (4), characterized in that: The oil well logging instrument (6) and the outer shell (4) are fixedly connected by the oil well logging instrument fixing mechanism (7). The lower end of the support rod (3) is provided with a limit seat position adjustment mechanism (2), and the lower end of the limit seat position adjustment mechanism (2) is provided with the outer shell (1).

2. The portable monitoring device for oil well logging according to claim 1, characterized in that: The limiting seat position adjustment mechanism (2) includes a mounting box (21), a small bevel gear (22), a limiting seat body (23), a telescopic component (24), a large bevel gear (25), a rotating shaft (26), and a motor (27). The lower end of the support rod (3) is provided with a mounting box (21). The upper center of the mounting box (21) is equipped with a motor (27) by screws. The output end of the motor (27) is provided with a rotating shaft (26). The lower end of the rotating shaft (26) is provided with a large bevel gear (25). The side of the large bevel gear (25) is meshed with four sets of small bevel gears (22). The side of the small bevel gears (22) is provided with a telescopic component (24). The other end of the telescopic component (24) is provided with a limiting seat body (23).

3. The portable monitoring device for oil well logging according to claim 2, characterized in that: The telescopic assembly (24) includes a threaded rod (241), a bearing (242), a telescopic rod (244), and a sleeve rod (246). Four sets of sleeve rods (246) are fixedly installed on the side of the mounting box (21). The threaded rod (241) is installed on the side of the small bevel gear (22). The threaded rod (241) and the mounting box (21) are rotatably connected through the bearing (242). The other end of the threaded rod (241) is threadedly connected to the telescopic rod (244). The other end of the telescopic rod (244) is fixed to the side of the limiting seat body (23).

4. A portable monitoring device for oil well logging according to claim 3, characterized in that: The telescopic assembly (24) also includes a limiting groove (243) and a limiting block (245). The limiting block (245) is fixed on one side of the telescopic rod (244), and the inner wall of the sleeve rod (246) is provided with a limiting groove (243) corresponding to the limiting block (245).

5. A portable monitoring device for oil well logging according to claim 1, characterized in that: The oil well logging instrument fixing mechanism (7) includes a mounting groove (71), a sliding plate (72), a spring (73), a central rod (74), an adjustment component (75), a fixing block (76), a fixing hole (77), a fixing groove (78), and a fixing rod (79). The lower end of the oil well logging instrument (6) is equipped with a fixing block (76), and a fixing hole (77) is provided on the side of the fixing block (76). The upper end of the outer shell (4) is provided with a fixing groove (78) corresponding to the fixing block (76). The upper side of the outer shell (4) is provided with a sliding plate (72), and a central rod (74) is installed on the inner side of the sliding plate (72). The surface of the central rod (74) is slidably connected to the sliding plate (72). The surface of the central rod (74) is fitted with a spring (73) on the side of the sliding plate (72). A fixing rod (79) is installed at the center of the other side of the sliding plate (72). Adjustment components (75) are provided on the other two sides of the sliding plate (72).

6. A portable monitoring device for oil well logging according to claim 5, characterized in that: The adjustment component (75) includes an adjustment block (751) and an adjustment groove (752). The side of the slide plate (72) is provided with an adjustment block (751), and the upper side of the outer shell (4) is provided with an adjustment groove (752) corresponding to the adjustment block (751).

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