A wellbore deviation monitoring device

Abstract

The utility model relates to shaft safety monitoring device technical field, especially shaft deflection monitoring device, traction rope fixing device sets up in the center of disc carrier, synchronous infrared range finder sets up on disc carrier for measuring the distance of disc carrier to the inner wall of shaft, steel wire limiting hole opens on disc carrier for cooperating with the guide steel wire and limiting the position of disc carrier in the moving process, the utility model measures the distance of the inner wall of shaft by six synchronous infrared range finders, and the shaft center position can be fitted according to the distance obtained by measurement and the distance of range finder to the center of device, and the axial deflection of shaft can be calculated by the shaft center position of different height, the utility model has the important practical value of simple structure, reliable monitoring result, simple operation to realize the efficient, reliable and low -cost monitoring of shaft deflection.

Description

Technical Field

[0001] This utility model relates to the technical field of wellbore safety monitoring devices, and in particular to a wellbore deviation monitoring device. Background Technology

[0002] For coal mines, main shafts, auxiliary shafts, ventilation shafts, and other shafts are mostly constructed using the vertical shaft method. During long-term operation, due to factors such as stratum movement and deformation, the shafts are highly susceptible to deformation and damage, which in turn affects the safe operation of the shafts. Among these damages, axial deviation of the shaft is one of the most common causes, requiring regular monitoring and inspection of shaft deviation.

[0003] Therefore, to address the above problems, there is a need to provide a wellbore deviation monitoring device that provides accurate monitoring results, has a simple structure, is easy to operate, and has controllable costs. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a wellbore deviation monitoring device.

[0005] A wellbore deviation monitoring device includes a disc carrier, a traction rope fixing device, a synchronous infrared rangefinder, and a steel wire limiting hole, characterized in that: The traction rope fixing device is located at the center of the disc carrier; The synchronous infrared rangefinder is mounted on the disc carrier and is used to measure the distance from the disc carrier to the inner wall of the wellbore. The wire limiting hole is formed on the disc carrier and is used to cooperate with the guide wire to limit the position of the disc carrier during movement.

[0006] Furthermore, in order to better realize this utility model, the disc carrier includes an annular ring and eight spokes; one end of the eight spokes is connected to the traction rope fixing device, and the other end is connected to the annular ring.

[0007] Furthermore, in order to better realize this utility model, six of the eight spokes are arranged at equal intervals along the circumference of the annular ring; the number of synchronous infrared rangefinders is six, which are respectively installed on the six spokes.

[0008] Furthermore, in order to better realize this utility model, the distance between each of the six synchronous infrared rangefinders and the center of the disc carrier is equal.

[0009] Furthermore, in order to better realize this utility model, the remaining two spokes of the eight spokes are arranged on one axis of symmetry of the six spokes.

[0010] Furthermore, in order to better realize this utility model, the number of wire limiting holes is two, which are symmetrically arranged on the remaining two spokes and located near the annular ring.

[0011] Furthermore, in order to better realize this utility model, the steel wire limiting hole extends outward from the upper and lower sides of the disc carrier.

[0012] Furthermore, in order to better realize this utility model, the synchronous infrared rangefinder is horizontally mounted on the disc carrier.

[0013] The beneficial effects of this utility model are: This invention utilizes six synchronous infrared rangefinders to measure the distance to the inner wall of the well casing. By adding the measured distance to the distance from the rangefinder to the center of the device, the center position of the well casing can be determined. Using the center positions of the well casing at different heights, the axial deviation of the well casing can be calculated. This invention features a simple structure, reliable monitoring results, and easy operation, making it of significant practical value for achieving efficient, reliable, and low-cost monitoring of well casing deviation. Attached Figure Description

[0014] Figure 1 This is a top view schematic diagram of the wellbore deviation monitoring device of this utility model; Figure 2 This is a side view schematic diagram of the wellbore deviation monitoring device of this utility model.

[0015] In the picture, 11. Disc carrier; 111. Ring; 112. Spokes; 12. Synchronous infrared rangefinder; 13. Wire limiting hole; 14. Traction rope fixing device. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Figures 1-2This is a specific embodiment of the present invention, which is a wellbore deviation monitoring device. The main body consists of a disc carrier 11, a synchronous infrared rangefinder 12, wire limiting holes 13, and a traction rope fixing device 14. The disc carrier 11 consists of an annular ring 111 and eight spokes 112, wherein six spokes are arranged at equal intervals in a ring, and the other two spokes are positioned along a symmetrical axis of the aforementioned six spokes. The synchronous infrared rangefinder 12 is mounted on the six equally spaced spokes in a ring, and each individual infrared rangefinder 12 is equidistant from the center of the disc carrier. Two wire limiting holes 13 are symmetrically arranged on the remaining two spokes near the annular ring 111. The traction rope fixing device 14 is located at the very center of the disc carrier 11 and is used to fix the traction rope.

[0019] like Figure 2 As shown, two wire limiting holes 13 are located on the spokes near the annular ring 111, and the wire limiting holes 13 extend outward from both the upper and lower sides of the spokes to better control the balance of the disc carrier during its vertical movement. Six synchronous infrared rangefinders 12 are horizontally mounted on the six spokes. The traction rope fixing device 14 is located at the center of the disc carrier and is used to fix the traction rope.

[0020] The operating method of this wellbore deviation monitoring device is as follows: S1: Two long steel wires are installed at the wellhead of the well where deviation monitoring is required. The distance between the two long steel wires is equal to the distance between the two steel wire limiting holes 13 of the monitoring device. S2: A traction rope is set between two long steel wires. One end of the traction rope is connected to an engine for stretching and releasing the traction rope. S3: Lower the traction rope and two long steel wires to the bottom of the well, and use methods such as contact measurement to mark the vertical projection point of the two long steel wires at the bottom of the well. S4: Pass the two long steel wires through the two steel wire limiting holes 13 of the monitoring device of this utility model, and then straighten and fix the steel wires at the vertical projection point at the bottom of the well. S5: Connect and fix the traction rope to the traction rope fixing device 14 on the monitoring device; S6: Turn on the six synchronous infrared rangefinders 12 and set the measurement frequency; S7: Turn on the engine at the wellhead and slowly and evenly lift the monitoring device from the bottom of the well to the wellhead under the traction of the traction rope; S8: The distance from the infrared rangefinder 12 to the well wall, plus the distance from the rangefinder to the center of the disc carrier, can be used to fit the center of the well. The depth corresponding to different measurement data can be calculated by using the measurement frequency of the infrared rangefinder 12 and the traction speed of the engine. S9: Using the center positions of the wellbore at different depths obtained from S8, a curve representing the center position of the wellbore in terms of depth can be obtained. This curve is the current axis of the wellbore, and the deviation of the wellbore can be analyzed accordingly.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A wellbore deviation monitoring device, comprising a disc carrier (11), a traction rope fixing device (14), a synchronous infrared rangefinder (12), and a steel wire limiting hole (13), characterized in that: The traction rope fixing device (14) is located at the center of the disc carrier (11); The synchronous infrared rangefinder (12) is mounted on the disc carrier (11) and is used to measure the distance from the disc carrier (11) to the inner wall of the well. The wire limiting hole (13) is opened on the disc carrier (11) and is used to cooperate with the guide wire to limit the position of the disc carrier (11) during the movement.

2. The wellbore deviation monitoring device according to claim 1, characterized in that: The disc carrier (11) includes an annular ring (111) and eight spokes (112); one end of the eight spokes (112) is connected to the traction rope fixing device (14), and the other end is connected to the annular ring (111).

3. The wellbore deviation monitoring device according to claim 2, characterized in that: Six of the eight spokes (112) are equally spaced along the circumference of the annular ring (111); there are six synchronous infrared rangefinders (12), which are installed on the six spokes respectively.

4. The wellbore deviation monitoring device according to claim 3, characterized in that: Of the six synchronous infrared rangefinders (12), each synchronous infrared rangefinder (12) is equidistant from the center of the disc carrier (11).

5. The wellbore deviation monitoring device according to claim 3, characterized in that: The remaining two spokes of the eight spokes (112) are positioned on one axis of symmetry of the six spokes.

6. The wellbore deviation monitoring device according to claim 5, characterized in that: The number of the wire limiting holes (13) is two, which are symmetrically arranged on the remaining two spokes and located near the annular ring (111).

7. The wellbore deviation monitoring device according to claim 1, characterized in that: The wire limiting hole (13) extends outward from the upper and lower sides of the disc carrier (11).

8. The wellbore deviation monitoring device according to claim 1, characterized in that: The synchronous infrared rangefinder (12) is horizontally mounted on the disc carrier (11).

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