Gas storage well wall stable measuring device

By using a laser measuring instrument and laser pointer in conjunction with a measuring disk, the problem of the inability to measure the concentricity deviation of deep wells in existing technologies has been solved, thus achieving wellbore stability and accuracy in the drilling process.

CN224174077UActive Publication Date: 2026-04-28XI'AN PETROLEUM UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XI'AN PETROLEUM UNIVERSITY
Filing Date
2025-06-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In the existing technology, explosion-proof wellbore diameter measuring devices cannot effectively measure the concentric offset distance of deep wells, making it difficult to guarantee the stability of the wellbore during drilling.

Method used

A laser measuring instrument and a laser pointer are used in conjunction with a measuring disk. The laser measuring instrument measures the descent depth of the fixed components, and the laser pointer illuminates the scale groove to display the offset distance. Combined with a motor and gear system, the concentricity of the well wall is accurately measured.

Benefits of technology

It enables precise measurement of the concentric offset distance of the wellbore at different depths, ensuring the stability of the wellbore and the accuracy of the drilling process.

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Abstract

The utility model provides a gas storage well wall stable measuring device, and belongs to the field of well wall measuring devices. A gas storage well wall stability measuring device comprises a fixing assembly and a measuring assembly located on the upper side of the fixing assembly, an electric push rod, a first motor and a laser pen are fixed in the fixing assembly, a rotating assembly and a plurality of rotating square rods are arranged in a rotating fit mode, and a sliding frame is fixedly installed at the output end of the electric push rod. The sliding frame is provided with a plurality of sliding blocks in sliding fit with the multiple rotating square rods in a rotating fit mode, and one end of each rotating square rod is fixedly provided with a second motor. According to the utility model, through the installation of the laser measurer, the laser pen and the measuring disc, the laser measurer can measure the descending depth of the fixing assembly, and the laser emitted by the laser pen can irradiate in the scale groove, so that the scale groove can display the offset distance when the concentricity offset of the fixing assembly occurs.
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Description

Technical Field

[0001] This utility model relates to the technical field of wellbore measuring devices, and in particular to a gas storage wellbore stability measuring device. Background Technology

[0002] A gas storage facility, or natural gas storage "container," is commonly referred to as an underground gas storage facility. Underground gas storage facilities are artificial gas fields or reservoirs formed by re-injecting commercial natural gas transported by long-distance pipelines into underground spaces. Both the input and output of natural gas require drilling vertical wells on the surface for transportation.

[0003] In the prior art, such as the explosion-proof well diameter measuring device with announcement number CN110318739B, there is a casing, and a centralizer, measuring component, telescopic device, and lower connecting rod coaxially arranged inside the casing. The measuring component includes a measuring arm whose end passes through the casing and can always be in contact with the well wall to be measured. It is aligned by the centralizer. Through the cooperation of the measuring component and telescopic device, the lateral displacement of the measuring arm is converted into the vertical displacement of the hydraulic cylinder piston. However, when the drill rod is drilling into the ground, the swing of the drill rod itself or the pressure of the soil layer on the drill bit will cause the coaxiality of the deep well to deviate. However, the explosion-proof well diameter measuring device in the prior art has the problem that it cannot measure the coaxiality offset distance of the deep well. Therefore, a gas storage well wall stability measuring device is proposed. Utility Model Content

[0004] In view of this, the present invention aims to provide a gas storage wellbore stability measuring device to solve or alleviate the technical problems existing in the prior art. By installing a laser measuring device, a laser pen, and a measuring disk, the laser measuring device can measure the descent depth of the fixed component, and the laser emitted by the laser pen can illuminate the scale groove, so that when the fixed component deviates from its concentricity, the scale groove can display the deviation distance. Thus, the device can measure the concentric deviation distance of the well depth under different conditions.

[0005] The technical solution of this utility model embodiment is implemented as follows:

[0006] A gas storage wellbore stability measuring device includes a fixed component and a measuring component located on top of the fixed component. The fixed component internally houses an electric push rod, a first motor, a laser pointer, a rotating component, and multiple rotating square rods. A sliding frame is fixedly mounted on the output end of the electric push rod. Multiple sliding blocks, each rotatably engaging with one of the multiple rotating square rods, are slidably mounted on the sliding frame. A second motor is fixedly mounted on one end of each of the multiple rotating square rods, and a rotating wheel is fixedly mounted on the output end of the second motor. A gear meshing with the rotating component is fixedly mounted on the output end of the first motor. The measuring component includes a measuring disk and a laser measuring device fixedly mounted inside the measuring disk.

[0007] Preferably, the fixing component includes a housing and a fixing plate fixedly installed inside the housing. The rotating component includes a rotating seat rotatably disposed at the bottom of the housing and a camera fixedly installed on the lower side of the rotating seat. The rotating seat has multiple toothed grooves that mesh with gears. A level is fixedly installed on the housing. The installation of the level facilitates knowing whether the fixing component is in a horizontal state.

[0008] Preferably, the electric push rod is fixed on the fixed plate, and multiple guide bars for guiding the sliding frame are fixedly installed inside the outer shell. Multiple guide protrusions for guiding multiple sliding blocks are provided on the sliding frame. The installation of the guide protrusions can guide the sliding blocks, thereby making the sliding blocks slide more smoothly.

[0009] Preferably, the outer casing is provided with a plurality of support protrusions for supporting a plurality of rotating square rods respectively. The laser pointer is fixedly installed on the top of the outer casing. The provision of the support protrusions facilitates the rotational engagement between the rotating square rods and the outer casing.

[0010] Preferably, the measuring disc is made of transparent material and has multiple crisscrossing scale grooves. Three support legs are provided on the periphery of the measuring disc with threaded fit. The scale grooves facilitate the measurement of the offset distance of the fixed component.

[0011] Preferably, each of the three support legs has an adjusting rod threaded into its bottom. The bottom of the adjusting rod is conical, and the middle part of the adjusting rod is threaded into the support leg. The top of the adjusting rod has a handle. The handle and the support leg facilitate the support of the measuring disc.

[0012] The present invention has the following advantages due to the adoption of the above technical solution:

[0013] I. This utility model, through the installation of a laser measuring device, a laser pen, and a measuring disk, enables the laser measuring device to measure the descent depth of the fixed component. The laser emitted by the laser pen can illuminate the scale groove, so that when the fixed component undergoes concentricity deviation, the scale groove can display the deviation distance. Thus, the device can measure the concentric deviation distance of the well depth under different conditions.

[0014] Second, by installing a first motor, this utility model can drive the camera to rotate, so that the camera can take pictures of the well wall during the rotation process, thus enabling the device to take pictures of the well wall.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a structural diagram of the sliding block of this utility model.

[0021] Reference numerals: 1. Fixing component; 2. Measuring component; 3. Electric push rod; 4. First motor; 5. Laser pointer; 6. Rotating component; 7. Rotating square rod; 8. Sliding frame; 9. Sliding block; 10. Second motor; 11. Rotating wheel; 12. Gear; 13. Measuring disk; 14. Laser measuring instrument; 15. Housing; 16. Fixing plate; 17. Rotating seat; 18. Camera; 19. Guide bar; 20. Support leg; 21. Adjusting rod; 22. Level; 801. Guide protrusion; 1301. Scale groove; 1501. Support protrusion. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, this utility model embodiment provides a gas storage well wall stability measuring device, including: a fixed component 1, a measuring component 2 located on the upper side of the fixed component 1, an electric push rod 3, a first motor 4, a laser pointer 5, a rotating component 6 and multiple rotating square rods 7 fixedly arranged inside the fixed component 1, a sliding frame 8 fixedly installed on the output end of the electric push rod 3, multiple sliding blocks 9 respectively rotatably cooperating with the multiple rotating square rods 7 on the sliding frame 8, a second motor 10 fixedly installed on one end of each of the multiple rotating square rods 7, a rotating wheel 11 fixedly installed on the output end of the second motor 10, a gear 12 meshing with the rotating component 6 fixedly installed on the output end of the first motor 4, and a measuring component 2 including a measuring disk 13 and a laser measuring device 14 fixedly installed inside the measuring disk 13.

[0025] In this embodiment, specifically: the fixing component 1 includes a housing 15 and a fixing plate 16 fixedly installed inside the housing 15; the rotating component 6 includes a rotating seat 17 rotatably disposed at the bottom of the housing 15 and a camera 18 fixedly installed on the lower side of the rotating seat 17; the rotating seat 17 has multiple toothed grooves that mesh with the gear 12; a level 22 is fixedly installed on the housing 15; the opening of the toothed grooves facilitates the gear 12 to drive the rotating seat 17 to rotate.

[0026] In this embodiment, specifically: the electric push rod 3 is fixed on the fixed plate 16, and a plurality of guide strips 19 for guiding the sliding frame 8 are fixedly installed inside the outer shell 15. The sliding frame 8 is provided with a plurality of guide protrusions 801 for guiding a plurality of sliding blocks 9. The installation of the guide strips 19 can guide the sliding frame 8 during the sliding process, thereby making the sliding frame 8 slide more smoothly.

[0027] In this embodiment, specifically: the outer shell 15 is provided with a plurality of support protrusions 1501 for supporting a plurality of rotating square rods 7 respectively; the laser pointer 5 is fixedly installed on the top of the outer shell 15; the installation of the rotating square rods 7 facilitates the rotation of the rotating wheel 11 to swing and contact the well wall.

[0028] In this embodiment, specifically: the measuring disk 13 is made of transparent material, and multiple crisscrossing scale grooves 1301 are provided on the measuring disk 13. Three support legs 20 are provided on the periphery of the measuring disk 13 with threaded fit. The installation of the scale grooves 1301 makes it easy to know the offset distance of the well depth.

[0029] In this embodiment, specifically: each of the three support legs 20 has an adjusting rod 21 threadedly fitted at its bottom. The bottom of the adjusting rod 21 is a conical structure, the middle part of the adjusting rod 21 is threadedly fitted with the support leg 20, and the top of the adjusting rod 21 is provided with a handle. The installation of the adjusting rod 21 makes it easy to adjust the measuring disc 13 to a horizontal state.

[0030] When this utility model is in operation: when the device needs to take pictures of the well wall, the fixing component 1 is placed inside the well, and the measuring component 2 is placed on the upper surface of the well opening. The central axis of the measuring disk 13 is aligned with the center point of the well opening to serve as a coaxiality reference point. Then, the electric push rod 3 is turned on. The turning of the electric push rod 3 causes the sliding frame 8 to slide, and the sliding frame 8 causes the sliding block 9 to slide. After the multiple sliding blocks 9 slide close to each other, the multiple rotating square rods 7 swing. The swinging rotating square rods 7 drive the second motor 10 and the rotating wheel 11 to swing. The swinging rotating wheel 11 contacts the well wall. Then, the second motor 10 is turned on. The turning of the second motor 10 causes the rotating wheel 11 to rotate. The rotation of the rotating wheel 11 causes the fixing component 1 to slide towards the bottom of the well. Then, the first motor 4 is turned on. The turning of the first motor 4 causes the gear 12, the rotating seat 17, and the camera 18 to rotate. The rotating camera 18 takes pictures of the well wall. Then, the camera 18 is turned on, and at this time, the camera 18 rotates to take pictures of the well wall.

[0031] When the device needs to measure the coaxiality of the well, the laser measuring device 14 is turned on. After the laser measuring device 14 is turned on, the laser shines on the upper surface of the housing 15 to measure the depth of the fixed component 1. After the depth is measured, the laser pen 5 is turned on. After the laser pen 5 is turned on, the laser shines on the measuring disk 13. When there is a center deviation at this position, the laser pen 5 cannot shine on the center position of the measuring disk 13. After the laser emitted by the laser pen 5 shines on the measuring disk 13, the value of the scale groove 1301 on the measuring disk 13 is read. The eccentric distance between the center point of the fixed component 1 and the wellhead and the measuring disk 13 is a data point for coaxiality measurement. Then the second motor 10 is turned on to make the fixed component 1 continue to slide downward, so as to continue to measure the coaxiality offset position of the next position.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A gas storage wellbore stability measuring device, comprising a fixing component (1) and a measuring component (2) located on the upper side of the fixing component (1), characterized in that: The fixed component (1) has an internal fixed electric push rod (3), a first motor (4), a laser pointer (5), a rotating component (6), and multiple rotating square rods (7). A sliding frame (8) is fixedly installed on the output end of the electric push rod (3). The sliding frame (8) is provided with multiple sliding blocks (9) that are rotatably coupled to multiple rotating square rods (7). A second motor (10) is fixedly installed at one end of each of the multiple rotating square rods (7). A rotating wheel (11) is fixedly installed on the output end of the second motor (10). A gear (12) that meshes with the rotating component (6) is fixedly installed on the output end of the first motor (4). The measuring component (2) includes a measuring disk (13) and a laser measuring device (14) fixedly installed inside the measuring disk (13).

2. The gas storage wellbore stability measuring device according to claim 1, characterized in that: The fixing component (1) includes a housing (15) and a fixing plate (16) fixedly installed inside the housing (15). The rotating component (6) includes a rotating seat (17) rotatably fitted at the bottom of the housing (15) and a camera (18) fixedly installed on the lower side of the rotating seat (17). The rotating seat (17) has multiple toothed grooves that mesh with the gear (12). A level (22) is fixedly installed on the housing (15).

3. The gas storage wellbore stability measuring device according to claim 2, characterized in that: The electric push rod (3) is fixed on the fixed plate (16), and multiple guide bars (19) for guiding the sliding frame (8) are fixedly installed inside the outer shell (15). Multiple guide protrusions (801) for guiding multiple sliding blocks (9) are provided on the sliding frame (8).

4. The gas storage wellbore stability measuring device according to claim 3, characterized in that: The outer shell (15) is provided with a plurality of support protrusions (1501) for supporting a plurality of rotating square rods (7), and the laser pointer (5) is fixedly installed on the top of the outer shell (15).

5. The gas storage wellbore stability measuring device according to claim 1, characterized in that: The measuring plate (13) is made of transparent material. Multiple crisscrossing scale grooves (1301) are provided on the measuring plate (13). Three support legs (20) are provided on the periphery of the measuring plate (13) with threaded fit.

6. The gas storage wellbore stability measuring device according to claim 5, characterized in that: Each of the three support legs (20) has an adjusting rod (21) threadedly fitted at the bottom. The bottom of the adjusting rod (21) is a conical structure. The middle part of the adjusting rod (21) is threadedly fitted with the support leg (20). The top of the adjusting rod (21) has a handle.

Citation Information

Patent Citations

  • An explosion-proof well wall diameter measuring device

    CN110318739B