Refueling well bolt position offset measuring tool

Abstract

The utility model relates to the technical field of well bolt measurement, in particular to a refueling well bolt position deviation measuring tool which comprises a support assembly, a processor and at least three range finders. The range finders are rotationally installed on the support assembly respectively and used for measuring the distance between the range finders and the center point of a refueling well bolt. The processor is installed on the support assembly and electrically connected with all the distance measuring instruments. According to the utility model, the refueling wellbore is used as a positioning reference, the refueling well bolt in the refueling wellbore is measured and positioned through the range finder above the refueling wellbore, the offset data is calculated through the processor, the operation is simple, and the measured data is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of well bolt measurement, and more specifically, to a measurement tool for measuring the position offset of a fueling well bolt. Background Art

[0002] The apron fueling pipeline is located under the apron pavement. The upper end of the vertical branch pipe of the fueling pipeline is installed with a fueling well bolt, and a fueling well barrel and a well ring are installed on the pavement to ensure the safety of the fueling well bolt. Due to factors such as underground soil layer voiding and extrusion, the displacement of the apron fueling pipeline may occur, which may cause the stretching and tearing of the vertical branch pipe, posing a risk of oil leakage. Since the fueling well barrel and the well ring are located in the apron pavement and their positions are relatively fixed, if the fueling well bolt installed therein undergoes a position offset, it indicates that the fueling pipeline under the apron pavement has moved. Therefore, it is very necessary to observe the displacement and height change of the fueling well bolt in the oil bolt well barrel. At present, at each apron site, the position change of the fueling well bolt is often measured and recorded manually, which has defects such as being unable to quickly and accurately determine the measurement reference point, large errors in the results due to different measurement orientations and angles, and low efficiency and accuracy of manual reading.

[0003] The Chinese patent of the prior art CN202323451228.6 discloses a well bolt displacement measurement device, including a fixed sleeve. A turntable is rotatably connected to the surface of the fixed sleeve. An adjustment seat is connected to the outer surface of the turntable. A horizontal and direction indicator is installed on the upper surface of the adjustment seat. A plurality of adjustable measuring rods with the same size and dimension are fixed on the outer surface of the adjustment seat, which are used to measure the distance between the well bolt and the well wall. The well bolt displacement measurement device proposed by the utility model has a simple structure, low cost, and is easy to use. It can monitor the displacement of each well bolt in real time during the integrity inspection of the bolt well, reduce the problems of the detection capital cost and non - sustainability of inviting external units for the detection of well bolt displacement, and can be used in the monthly integrity inspection of the apron bolt well. While saving operation time compared with the past, it can accurately record and compare the offset data. This prior art, through the manual measurement method of the measuring rod, can only measure the distance between the well bolt and the well wall, and cannot measure the height offset of the well bolt, resulting in the problem of low measurement accuracy. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency of the low measurement accuracy of the existing measurement device. The utility model proposes a measurement tool for measuring the position offset of a fueling well bolt, which can efficiently and accurately measure the offset data of the fueling well bolt.

[0005] To achieve the above object, a measuring tool for the position offset of a fueling well plug in a technical solution includes a support assembly, a processor, and at least three rangefinders. The support assembly is installed on the fueling wellbore. Each of the rangefinders is rotatably installed on the support assembly for measuring the distance from its center point of the fueling well plug. The processor is installed on the support assembly and is electrically connected to each of the rangefinders.

[0006] When this technical solution is used, the support assembly is installed on the fueling wellbore. Taking the fueling wellbore as the measurement reference, the relative positions of the rangefinders are fixed. By rotating and adjusting the measurement directions of the rangefinders, the measurement ends of the rangefinders are aligned with the center point of the fueling well plug for measurement. The measurement data is transmitted to the processor. The processor establishes a spatial coordinate system through the spatial positions of the rangefinders themselves, and then calculates the spatial position of the center point of the fueling well plug through the distance values measured at different angles by the rangefinders. Among them, the processor can store multiple measurement data. Subsequently, by comparing the initial value of the spatial position of the center point of the fueling well plug, the offset degree of the fueling well plug can be analyzed, and then it can be judged whether the fueling pipeline under the apron pavement has moved. This solution can accurately judge the offset value of the spatial position of the fueling well plug, rather than being limited to the judgment of the planar position. The measurement data is more accurate and the measurement is more efficient.

[0007] Preferably, in order to fix the support assembly on the fueling wellbore to establish a positioning reference, the support assembly includes a base, a connection block, and a plurality of support rods corresponding to the number of the rangefinders. The base is an annular structure adapted to the structure of the fueling wellbore. This annular structure can ensure that the base is firmly installed and not prone to deflection, thus avoiding affecting the positioning reference. The bottom ends of the support rods are respectively connected to the base at equal intervals. The top ends of the support rods are respectively connected to the connection block, and the extension lines of the top ends of the support rods intersect at a point, which can ensure the stability of the support frame structure. Each support frame is not prone to deformation. Each of the rangefinders is installed on each of the support rods. Since the positions of the support frame and the base are relatively fixed, the positions of the rangefinders on each support frame are relatively fixed. The processor is installed at the top end of the connection block, which is convenient for the staff to observe, operate, and obtain data.

[0008] Preferably, in order to reduce measurement errors and improve the accuracy of data, three rangefinders are provided. Each rangefinder is located at the same horizontal height and the positions of the rangefinders are arranged in a circular array. The rangefinders are connected to form an equilateral triangle. The processor can edit the positions of the three rangefinders, establish a spatial rectangular coordinate system with one rangefinder as the origin. Since the relative positions of the other two rangefinders are fixed, their spatial coordinates can be directly calculated. After entering the initial data of the spatial coordinates of the center point of the fueling well plug, after each rangefinder completes the measurement and inputs it into the spatial rectangular coordinate system, the current spatial coordinates of the center point of the fueling well plug can be calculated. By comparing the initial data of the center point of the fueling well plug, its offset value can be obtained, thereby determining whether the fueling well plug has shifted.

[0009] Preferably, in order to rotate the rangefinder so that the measuring end of the rangefinder can be aligned with the center point of the fueling well plug, a receiving cavity is provided in the middle of the support rod. The support rod is provided with an opening communicating with the receiving cavity towards the center of the base. A universal ball is installed in the receiving cavity, and the rangefinder is fixed on the universal ball. The measuring end of the rangefinder extends out of the opening.

[0010] Preferably, in order to keep the position of the measuring end of the rangefinder unchanged after rotation, the measuring starting point of the rangefinder coincides with the center position of the universal ball.

[0011] Preferably, in order to keep the position of the rangefinder and prevent it from loosening, a locking member is connected to the support rod. One end of the locking member extends into the receiving cavity and presses against the universal ball. After the staff adjusts the position of the rangefinder, tighten the locking member so that the locking member can press against the universal ball to fix the position of the universal ball, thereby fixing the rangefinder.

[0012] Preferably, an angle of 45° to 60° is formed between the support rod and the base, and the support rod is inclined so that the rangefinder measures at a depression angle, and the measurement range is wider.

[0013] Preferably, in order to ensure that the position of the base on the fueling wellbore remains the same during each measurement, so that the coordinate origin remains the same, a compass is provided on the processor. Before measurement, rotate the base for calibration according to the indication of the compass, which can avoid repeatedly establishing the coordinate origin.

[0014] Preferably, in order to facilitate the staff to align the measuring end of the rangefinder with the center point of the fueling well plug, the rangefinder is a laser distance sensor, and the laser distance sensor can emit positioning laser for the staff to observe to assist in aiming at the measurement point.

[0015] Preferably, in order to further make the base better adapt to the fuel filling wellbore and prevent the base from sliding and affecting the positioning reference, a limiting groove is provided at the bottom of the base. The limiting groove is of an annular structure so that the base can be stuck on the edge of the fuel filling wellbore.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The fuel filling well bolt position offset measuring tool of the present utility model uses the bracket assembly as the positioning reference, measures the distance data of the center point of the fuel filling well bolt through a plurality of rangefinders, and then calculates the spatial position information of the center point of the fuel filling well bolt through the processor, and compares to obtain the offset amount of the fuel filling well bolt, with high measurement accuracy.

[0018] 2. The positions of the three rangefinders are relatively fixed. A spatial rectangular coordinate is established through the processor, with the position of one of the rangefinders as the coordinate origin. Before measurement, by ensuring that the installation position of the base is the same each time through the azimuth instrument, the coordinate origin can be ensured to remain unchanged. After the data measured by each rangefinder is input into the spatial rectangular coordinate system of the processor, the spatial coordinates of the center point of the fuel filling well bolt can be obtained, with high measurement efficiency.

[0019] 3. The rangefinder is connected to the support rod through a universal ball, enabling the rangefinder to rotate flexibly to align with the center point of the fuel filling well bolt, and then fixed through the locking member after adjustment, with convenient measurement operation. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the fuel filling well bolt position offset measuring tool of the present utility model;

[0021] Figure 2 is Figure 1 a schematic diagram from another perspective;

[0022] Figure 3 is a schematic diagram of the installation positions of the rangefinder and the universal ball;

[0023] Figure 4 is a schematic diagram of the working state of the present utility model.

[0024] In the figure: bracket assembly 1; base 11; limiting groove 111; support rod 12; accommodation cavity 121; open end 122; connecting block 13; rangefinder 2; processor 3; universal ball 4; locking member 5; azimuth instrument 6; fuel filling wellbore 7; fuel filling well bolt 8. Detailed Embodiments

[0025] The accompanying drawings are only for illustrative purposes and should not be construed as limiting the patent; for better illustration of this embodiment, some components in the drawings may be omitted, enlarged or reduced, which does not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and should not be construed as limiting the patent.

[0026] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as limiting the patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The technical solution of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0028] Embodiment 1:

[0029] As Figure 1 , 2 shown, this embodiment is the first embodiment of a measurement tool for the position offset of a fuel filling well bolt, including a bracket assembly 1, a processor 3, and at least three rangefinders 2. When in use, the bracket assembly 1 is installed on the fuel filling wellbore 7, and each of the rangefinders 2 is rotatably installed on the bracket assembly 1 for measuring the distance from its center point of the fuel filling well bolt 8, and the processor 3 is installed on the bracket assembly 1 and electrically connected to each of the rangefinders 2.

[0030] In this embodiment, the rangefinder 2 can rotate freely, and its measurement range can cover the fuel filling wellbore 7. The processor 3 is provided with a display screen, and the display screen can display: the spatial positions of each of the rangefinders 2, the data measured by each of the rangefinders 2, the spatial position of the fuel filling well bolt 8, the initial spatial position of the fuel filling well bolt 8, and the offset of the fuel filling well bolt 8.

[0031] Specifically, the bracket assembly 1 includes a base 11, a connecting block 13, and a number of support rods 12 corresponding to the number of the rangefinders 2. The base 11 is an annular structure adapted to the structure of the refueling wellbore 7. The bottom ends of the support rods 12 are respectively connected to the base 11 at equal intervals. The top ends of the support rods 12 are respectively connected to the connecting block 13, and the extension lines of the top ends of the support rods 12 intersect at a point. Each of the rangefinders 2 is installed on each of the support rods 12, and the processor 3 is installed at the top end of the connecting block 13.

[0032] In this embodiment, the bracket assembly 1 is made of stainless steel, which has the advantages of high strength, good rigidity, wear resistance, rust prevention, etc., can ensure that the tool is not easily deformed, and thus ensure the accuracy of the measurement data. The two ends of the support rod 12 are respectively fixed to the base 11 and the connecting block 13 by welding or fasteners, and the processor 3 is detachably installed on the connecting block 13.

[0033] Specifically, there are three rangefinders 2, and each of the rangefinders 2 is located at the same horizontal height and the positions of the rangefinders 2 are arranged in a circumferential array.

[0034] In this embodiment, the three rangefinders 2 are respectively arranged in the middle of each support rod 12.

[0035] Specifically, as Figure 3 shown, a receiving cavity 121 is provided in the middle of the support rod 12. The support rod 12 is provided with an opening 122 communicating with the receiving cavity 121 towards the center of the base 11. A universal ball 4 is installed in the receiving cavity 121. The rangefinder 2 is fixed on the universal ball 4, and the measuring end of the rangefinder 2 extends out of the opening 122.

[0036] In this embodiment, the receiving cavity 121 in the support rod 12 can accommodate the universal ball 4 and the universal ball 4 can rotate freely in the receiving cavity 121.

[0037] Specifically, the measurement starting point of the rangefinder 2 coincides with the center position of the universal ball 4.

[0038] In this embodiment, the coincidence of the measurement starting point of the rangefinder 2 with the center position of the universal ball 4 can ensure that the measurement starting point remains unchanged after the rangefinder 2 rotates.

[0039] Specifically, a locking member 5 is connected to the support rod 12, and one end of the locking member 5 extends into the receiving cavity 121 and presses against the universal ball 4.

[0040] In this embodiment, as Figure 3 shown, the locking member 5 is a pin with an external thread at one end. The support rod 12 is provided with a threaded hole communicating with the receiving cavity 121, and the pin is screwed into the threaded hole and presses against the universal ball 4.

[0041] Specifically, an angle of 45° to 60° is formed between the support rod 12 and the base 11.

[0042] In this embodiment, the angle between the support rod 12 and the base 11 is 60°.

[0043] Specifically, the rangefinder 2 is a laser distance sensor.

[0044] In this embodiment, as Figure 4 shown, the laser distance sensor can emit a laser beam for assisting in aiming at the measurement point. When the laser distance sensor works, first, the laser diode emits a laser pulse towards the target. After being reflected by the target, the laser scatters in all directions. Part of the scattered light returns to the sensor receiver and is imaged onto the photodiode by the optical system. The photodiode is an optical sensor with an internal amplification function. Therefore, it can detect extremely weak optical signals, record and process the time elapsed from the emission of the optical pulse to its reception after return, and thus measure the target distance.

[0045] The working principle of the measurement tool for the position deviation of the oil well bolt in this embodiment is as follows:

[0046] As Figure 4 shown, the base 11 is installed on the oil well casing 7, and the measurement points of each rangefinder 2 are adjusted to aim at the center point of the oil well bolt 8. Each rangefinder 2 measures the distance data and transmits it to the processor 3. The processor 3 establishes a space rectangular coordinate system. Let the centers of the balls of the universal balls 4, which are the measurement starting points of the above three rangefinders 2, be points A, B, and C respectively, and the measured point, i.e., the center point of the oil well bolt 8, be point D. Since the heights of the three rangefinders 2 are the same and the spacings are the same, and the distance between points A and B is a, then A can be defined as the coordinate origin, A(0, 0, 0), B(a, 0, 0), C(a / 2, 0), let the coordinates of point D be (x, y, z), and the data measured by the three rangefinders 2 are l, m, and n respectively;

[0047] Line segment l:

[0048]

[0049] Line segment m:

[0050]

[0051] Line segment n:

[0052]

[0053] Then x = (l 2 - m 2 + a 2 ) / 2a,

[0054] Given a, l, m, and n, the coordinates (x, y, z) of point D can be obtained. After each measurement, the coordinates of point D are compared with the initial values to obtain the offset value of the measured point. Table 1 below is an example of the actual measurement by processor 3.

[0055] Table 1 Measurement Data Analysis Table

[0056] a l m n x y z △x △y △z Initial value 10.00 10.00 10.00 10.00 5.00 2.89 8.16 / / / First measurement 10.00 8.00 8.00 8.00 5.00 2.89 5.54 0.00 0.00 -2.63 Second measurement 10.00 5.00 6.00 7.00 4.45 1.82 1.37 -0.55 -1.07 -4.16

[0057] Embodiment 2:

[0058] This embodiment is similar to Embodiment 1, except that in this embodiment, as Figure 1 、 4 shown, a compass 6 is provided on the processor 3.

[0059] In this embodiment, to ensure that the coordinate origin does not move, it is necessary to ensure that the installation position of the base 11 is the same during each measurement. At this time, by adjusting the orientation of the base 11 according to the indication of the compass 6, the consistency of the installation position can be ensured. The compass 6 is a compass needle.

[0060] Embodiment 3:

[0061] This embodiment is similar to Embodiment 1, except that in this embodiment, as Figure 2 shown, a limiting groove 111 is provided at the bottom of the base 11, and the limiting groove 111 is of an annular structure so that the base 11 is stuck on the edge of the oil filling wellbore 7.

[0062] In this embodiment, the limiting groove 111 can ensure the firm installation of the base 11 and prevent sliding, thereby ensuring the accuracy of the measurement data.

[0063] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0064] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A tool for measuring the position deviation of a fuel well plug, characterized in that: The invention comprises a support assembly (1), a processor (3) and at least three distance meters (2), wherein each distance meter (2) is rotatably mounted on the support assembly (1) and is used to measure the distance between the distance meter and the center point of a fuel well plug (8); and the processor (3) is mounted on the support assembly (1) and is electrically connected to each distance meter (2).

2. A fuel well plug position deviation measuring tool according to claim 1, characterized in that: The support assembly (1) comprises a base (11), a connecting block (13) and a plurality of support rods (12) corresponding to the number of the rangefinders (2); the base (11) is an annular structure adapted to the structure of the refueling shaft (7); the bottom ends of the support rods (12) are connected to the base (11) at equal intervals; the top ends of the support rods (12) are connected to the connecting block (13) and the extension lines of the top ends of the support rods (12) meet at one point; the rangefinders (2) are mounted on the support rods (12) and the processor (3) is mounted on the top end of the connecting block (13).

3. A fuel well plug position deviation measuring tool according to claim 2, characterized in that: Three rangefinders (2) are provided, each of the rangefinders (2) is located at the same horizontal height and the positions of the rangefinders (2) are arranged in a circular array.

4. A fuel well plug position deviation measuring tool according to claim 2, characterized in that: A receiving cavity (121) is provided in the middle of the support rod (12); an opening (122) communicating with the receiving cavity (121) is provided at the center of the support rod (12) facing the base (11); a universal ball (4) is installed in the receiving cavity (121); the rangefinder (2) is fixed on the universal ball (4); and a measuring end of the rangefinder (2) extends out of the opening (122).

5. A fuel well plug position deviation measuring tool according to claim 4, characterized in that: The measuring starting point of the distance meter (2) coincides with the center position of the universal ball (4).

6. A fuel well plug position deviation measuring tool according to claim 4, characterized in that: A locking piece (5) is connected to the support rod (12), and one end of the locking piece (5) extends into the accommodating cavity (121) and presses against the universal ball (4).

7. A fuel well plug position deviation measuring tool according to claim 2, characterized in that: An included angle of 45° to 60° is formed between the support rod (12) and the base (11).

8. A fuel well plug position deviation measuring tool according to claim 1, characterized in that: The processor (3) is provided with a azimuth instrument (6).

9. A fuel well plug position deviation measuring tool according to claim 1, characterized in that: The distance meter (2) is a laser distance sensor.

10. A fuel well plug position deviation measuring tool according to claim 2, characterized in that: A limiting groove (111) is provided at the bottom of the base (11), and the limiting groove (111) is an annular structure.

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