Novel four-arm caliper logging instrument

Abstract

The utility model discloses a novel four-arm hole diameter logging instrument which comprises a measuring cylinder, and the top and the bottom of the measuring cylinder are both in threaded connection with connecting columns. When the measuring instrument is taken out, the driving motor is started, the driving motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the positive and negative screw rod to rotate, the positive and negative screw rod drives the moving disc to move towards the outer side, the moving disc drives the moving block to move towards the outer side along the sliding rod, and the moving block drives the folding plate to fold towards the inner side. The folding plate is folded inwards to drive the connecting block to move inwards, the connecting block moves inwards to drive the measuring column to move inwards, and when the measuring column is separated from the measuring well, the measuring instrument can be taken out, so that the measuring instrument has the advantage that the measuring instrument can be taken out conveniently, and the measuring instrument can be taken out quickly through matched use of the driving mechanism and the folding measuring mechanism; and the measuring instrument cannot be damaged, and the borehole diameter measurement is not limited.

Description

Technical Field

[0001] The utility model relates to the technical field of caliper logging instruments, in particular to a novel four-arm caliper logging instrument. Background Art

[0002] After the four-arm caliper logging instrument is completed in measurement, the well without casing is generally irregular in shape. When the four-arm caliper logging instrument is taken out, other tools are generally used to drag the four-arm caliper logging instrument. In the process of taking out the four-arm caliper logging instrument, the four-arm caliper logging instrument is easily damaged, so the four-arm caliper logging instrument needs to be repaired before use, which brings inconvenience to the wellbore measurement, thereby increasing the limitation of the wellbore measurement.

[0003] Therefore, it is necessary to carry out design modification to effectively prevent the four-arm caliper logging instrument from being damaged when it is taken out after the measurement is completed. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a new type of four-arm caliper logging instrument, which has the advantage of being easy to take out the measuring instrument, and solves the problem that after the four-arm caliper logging instrument is completed for measurement, the well without casing is generally irregular in shape. When the four-arm caliper logging instrument is taken out, other tools are generally used to drag the four-arm caliper logging instrument, and the four-arm caliper logging instrument is easily damaged in the process of taking out the four-arm caliper logging instrument, so the four-arm caliper logging instrument needs to be repaired before use, which brings inconvenience to the well diameter measurement, thereby increasing the problem of the limitations of the well diameter measurement.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel four-arm caliper logging instrument, comprising a measuring tube, the top and bottom of the measuring tube are both threadedly connected with a connecting column, the outer side of the connecting column is fixedly connected with an extension column, the outer side of the measuring tube is provided with a movable groove, the number of the movable grooves is several, and the several movable grooves are distributed at equal distances, the inside of the measuring tube is fixedly connected with a fixing plate, the top of the fixing plate is provided with a driving mechanism, and the outer side of the driving mechanism is provided with a folding measuring mechanism;

[0006] The driving mechanism is used to perform folding measurement on the folding measurement mechanism;

[0007] The folding measuring mechanism is used to measure the well diameter.

[0008] As a preferred embodiment of the utility model, the driving mechanism includes a driving motor and a motor frame, the bottom of the driving motor is fixedly connected to the top of the motor frame, the bottom of the motor frame is fixedly connected to the top of the fixed plate by fastening bolts, the output end of the driving motor is fixedly connected to a worm, the left side of the worm is meshed with a worm wheel, the inside of the worm wheel is fixedly connected with forward and reverse screws, and the surface of the forward and reverse screws is threadedly connected to a movable disk.

[0009] As a preferred embodiment of the utility model, the folding measuring mechanism includes a moving block and a sliding rod, the number of the moving blocks is several, and the several moving blocks are equidistantly distributed, the inner side of the moving block is fixedly connected to the outer side of the moving disk, the outer side of the sliding rod is movably sleeved inside the moving block, the top and bottom of the sliding rod are fixedly connected to the top and bottom of the movable groove, the inner side of the front side of the moving block is movably connected to a folding plate through a pin shaft, the outer side of the folding plate is movably connected to a connecting block through a pin shaft, and a measuring column is fixedly installed on the outer side of the connecting block.

[0010] As a preferred embodiment of the utility model, a wear-resistant sleeve is fixedly installed inside the fixing plate, an inner movable sleeve of the wear-resistant sleeve is arranged on the surface of the forward and reverse screws, and the wear-resistant sleeve is located inside the measuring cylinder.

[0011] As a preferred embodiment of the present invention, the front and rear sides of the bottom of the fixing plate are fixedly connected with reinforcing plates, the outer sides of the reinforcing plates are fixedly connected to the front and rear sides of the inner wall of the measuring tube, and the reinforcing plates are located at the bottom of the driving motor.

[0012] As a preferred embodiment of the utility model, a rear movable sleeve on the surface of the worm is provided with a support plate, the bottom of the support plate is fixedly connected to the top of the fixed plate, and the support plate is located inside the measuring tube.

[0013] As a preferred embodiment of the utility model, a cleaning sleeve is fixedly installed inside the moving block, an inner movable sleeve of the cleaning sleeve is arranged on the surface of the sliding rod, and the cleaning sleeve is located inside the movable groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. When taking out the measuring instrument, the utility model starts the driving motor, the driving motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the forward and reverse screws to rotate, the forward and reverse screws drive the moving disk to move outward, the moving disk drives the moving block to move outward along the sliding rod, the moving block mobilizes the folding plate to fold inward, the folding plate folds inward to drive the connecting block to move inward, the connecting block moves inward to drive the measuring column to move inward, and the measuring column is out of contact with the measuring well, so that the measuring instrument can be taken out, thereby having the advantage of being easy to take out of the measuring instrument, and through the coordinated use of the driving mechanism and the folding measuring mechanism, the measuring instrument can be quickly taken out without damaging the measuring instrument, and there is no limitation in the well diameter measurement.

[0016] 2. The utility model can perform folding measurement on the folding measuring mechanism by providing a driving mechanism, thereby avoiding the situation where the folding measuring mechanism cannot be folded during use, facilitating the folding of the folding measuring mechanism, and improving the convenience of use of the folding measuring mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the mobile plate of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the forward and reverse screws of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the connecting block of the utility model.

[0021] In the figure: 1. measuring tube; 2. connecting column; 3. extension column; 4. movable groove; 5. fixing plate; 6. driving mechanism; 61. driving motor; 62. motor frame; 63. worm; 64. worm gear; 65. forward and reverse screws; 66. moving disk; 7. folding measuring mechanism; 71. moving block; 72. sliding rod; 73. folding plate; 74. connecting block; 75. measuring column; 8. wear-resistant sleeve; 9. reinforcing plate; 10. supporting plate; 11. cleaning sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 4As shown, the utility model provides a novel four-arm caliper logging instrument, comprising a measuring tube 1, the top and bottom of the measuring tube 1 are both threadedly connected with a connecting column 2, the outer side of the connecting column 2 is fixedly connected with an extension column 3, the outer side of the measuring tube 1 is provided with a movable groove 4, the number of the movable grooves 4 is several, and the several movable grooves 4 are distributed at equal distances, the inside of the measuring tube 1 is fixedly connected with a fixing plate 5, the top of the fixing plate 5 is provided with a driving mechanism 6, and the outer side of the driving mechanism 6 is provided with a folding measuring mechanism 7;

[0024] The driving mechanism 6 is used to perform folding measurement on the folding measurement mechanism 7;

[0025] The folding measuring mechanism 7 is used to measure the well diameter.

[0026] refer to Figure 3 The driving mechanism 6 includes a driving motor 61 and a motor frame 62. The bottom of the driving motor 61 is fixedly connected to the top of the motor frame 62. The bottom of the motor frame 62 is fixedly connected to the top of the fixed plate 5 by fastening bolts. The output end of the driving motor 61 is fixedly connected to a worm 63. The left side of the worm 63 is meshed with a worm wheel 64. The inside of the worm wheel 64 is fixedly connected to a forward and reverse screw 65. The surface of the forward and reverse screw 65 is threadedly connected to a moving disk 66.

[0027] As a technical optimization solution of the utility model, by setting up the driving mechanism 6, the folding measurement of the folding measuring mechanism 7 can be measured, thereby avoiding the situation where the folding measuring mechanism 7 cannot be folded during use, facilitating the folding of the folding measuring mechanism 7, and improving the ease of use of the folding measuring mechanism 7.

[0028] refer to Figure 4 The folding measuring mechanism 7 includes a moving block 71 and a sliding rod 72. The number of the moving blocks 71 is several, and the moving blocks 71 are distributed at equal distances. The inner side of the moving block 71 is fixedly connected to the outer side of the moving disk 66, and the outer side of the sliding rod 72 is movably sleeved inside the moving block 71. The top and bottom of the sliding rod 72 are fixedly connected to the top and bottom of the movable groove 4. The inner side of the front side of the moving block 71 is movably connected to a folding plate 73 through a pin shaft, and the outer side of the folding plate 73 is movably connected to a connecting block 74 through a pin shaft. The outer side of the connecting block 74 is fixedly installed with a measuring column 75.

[0029] As a technical optimization solution of the utility model, by providing a folding measuring mechanism 7, the measuring instrument can be folded and taken out, thereby avoiding damage to the measuring instrument when taking it out, thereby improving the use efficiency of the measuring instrument.

[0030] refer to Figure 3 A wear-resistant sleeve 8 is fixedly installed inside the fixed plate 5 , and the inner movable sleeve of the wear-resistant sleeve 8 is arranged on the surface of the forward and reverse screws 65 . The wear-resistant sleeve 8 is located inside the measuring tube 1 .

[0031] As a technical optimization scheme of the utility model, by providing a wear-resistant sleeve 8, the surface of the forward and reverse screws 65 can be protected, thereby avoiding wear on the surface of the forward and reverse screws 65, which may cause damage to the forward and reverse screws 65, and improving the durability of the forward and reverse screws 65.

[0032] refer to Figure 3 The front and rear sides of the bottom of the fixing plate 5 are fixedly connected with a reinforcing plate 9 , the outer side of the reinforcing plate 9 is fixedly connected to the front and rear sides of the inner wall of the measuring tube 1 , and the reinforcing plate 9 is located at the bottom of the driving motor 61 .

[0033] As a technical optimization solution of the utility model, by providing a reinforcing plate 9, the fixing plate 5 can be reinforced, thereby avoiding the fixing plate 5 from breaking, playing a role in reinforcing the fixing plate 5, and improving the stability of the fixing plate 5.

[0034] refer to Figure 3 A supporting plate 10 is provided on the rear movable sleeve of the surface of the worm 63 . The bottom of the supporting plate 10 is fixedly connected to the top of the fixing plate 5 . The supporting plate 10 is located inside the measuring tube 1 .

[0035] As a technical optimization solution of the utility model, by providing the support plate 10, the worm 63 can be stabilized, thereby preventing the worm 63 from shaking during rotation, stabilizing the worm 63 and improving the stability of the worm 63.

[0036] refer to Figure 4 A cleaning sleeve 11 is fixedly installed inside the moving block 71 , and the inner movable sleeve of the cleaning sleeve 11 is arranged on the surface of the sliding rod 72 , and the cleaning sleeve 11 is located inside the movable groove 4 .

[0037] As a technical optimization solution of the utility model, by providing a cleaning sleeve 11, the surface of the slide rod 72 can be cleaned, thereby preventing dust from sticking to the surface of the slide rod 72, playing the role of cleaning the slide rod 72, and improving the stability of the slide rod 72.

[0038] The working principle and use process of the utility model are as follows: when in use, when taking out the measuring instrument, start the driving motor 61, the driving motor 61 drives the worm 63 to rotate, the worm 63 drives the worm wheel 64 to rotate, the worm wheel 64 drives the forward and reverse screws 65 to rotate, the forward and reverse screws 65 drive the movable disk 66 to move outward, the movable disk 66 drives the movable block 71 to move outward along the slide bar 72, the movable block 71 mobilizes the folding plate 73 to fold inward, the folding plate 73 folds inward and drives the connecting block 74 to move inward, the connecting block 74 moves inward and drives the measuring column 75 to move inward, when the measuring column 75 is out of contact with the measuring well, the measuring instrument can be taken out, thereby having the advantage of facilitating the taking out of the measuring instrument.

[0039] To sum up: the new four-arm caliper logging instrument, through the coordinated use of the measuring tube 1, the connecting column 2, the extension column 3, the movable groove 4, the fixing plate 5, the driving mechanism 6 and the folding measuring mechanism 7, solves the problem that after the four-arm caliper logging instrument is completed in measurement, the well without casing is generally of irregular shape. When the four-arm caliper logging instrument is taken out, other tools are generally used to drag the four-arm caliper logging instrument. In the process of taking out the four-arm caliper logging instrument, the four-arm caliper logging instrument is easily damaged, and the four-arm caliper logging instrument needs to be repaired before use, which brings inconvenience to the caliper measurement, thereby increasing the limitation of the caliper measurement.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel four-arm caliper logging tool, comprising a measuring tube (1), characterized in that: The top and bottom of the measuring cylinder (1) are both threadedly connected to a connecting column (2), the outer side of the connecting column (2) is fixedly connected to an extension column (3), the outer side of the measuring cylinder (1) is provided with a movable groove (4), the number of the movable grooves (4) is a plurality, and the plurality of movable grooves (4) are distributed at equal distances, the interior of the measuring cylinder (1) is fixedly connected to a fixing plate (5), the top of the fixing plate (5) is provided with a driving mechanism (6), and the outer side of the driving mechanism (6) is provided with a folding measuring mechanism (7); The driving mechanism (6) is used to perform folding measurement on the folding measurement mechanism (7); The folding measuring mechanism (7) is used to measure the well diameter.

2. A novel four-arm caliper logging tool according to claim 1, characterized in that: The driving mechanism (6) comprises a driving motor (61) and a motor frame (62); the bottom of the driving motor (61) is fixedly connected to the top of the motor frame (62); the bottom of the motor frame (62) is fixedly connected to the top of the fixing plate (5) by means of a fastening bolt; the output end of the driving motor (61) is fixedly connected to a worm (63); the left side of the worm (63) is meshed with a worm wheel (64); the interior of the worm wheel (64) is fixedly connected to a forward and reverse screw (65); the surface of the forward and reverse screw (65) is threadedly connected to a moving disk (66).

3. A novel four-arm caliper logging tool according to claim 2, characterized in that: The folding measuring mechanism (7) comprises a moving block (71) and a sliding rod (72). The number of the moving blocks (71) is several, and the moving blocks (71) are distributed at equal distances. The inner side of the moving block (71) is fixedly connected to the outer side of the moving plate (66), the outer side of the sliding rod (72) is movably sleeved inside the moving block (71), the top and bottom of the sliding rod (72) are fixedly connected to the top and bottom of the movable groove (4), the inner side of the front side of the moving block (71) is movably connected to a folding plate (73) via a pin shaft, the outer side of the folding plate (73) is movably connected to a connecting block (74) via a pin shaft, and the outer side of the connecting block (74) is fixedly installed with a measuring column (75).

4. A novel four-arm caliper logging tool according to claim 2, characterized in that: A wear-resistant sleeve (8) is fixedly installed inside the fixed plate (5), and the inner movable sleeve of the wear-resistant sleeve (8) is arranged on the surface of the forward and reverse screws (65). The wear-resistant sleeve (8) is located inside the measuring cylinder (1).

5. A novel four-arm caliper logging tool according to claim 2, characterized in that: The front and rear sides of the bottom of the fixing plate (5) are fixedly connected to a reinforcing plate (9), the outer sides of the reinforcing plate (9) are fixedly connected to the front and rear sides of the inner wall of the measuring tube (1), and the reinforcing plate (9) is located at the bottom of the driving motor (61).

6. A novel four-arm caliper logging tool according to claim 2, characterized in that: A supporting plate (10) is provided on the rear movable sleeve of the surface of the worm (63), the bottom of the supporting plate (10) is fixedly connected to the top of the fixing plate (5), and the supporting plate (10) is located inside the measuring tube (1).

7. A novel four-arm caliper logging tool according to claim 3, characterized in that: A cleaning sleeve (11) is fixedly installed inside the moving block (71), an inner movable sleeve of the cleaning sleeve (11) is arranged on the surface of the sliding rod (72), and the cleaning sleeve (11) is located inside the movable groove (4).

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