Thread specification measuring and calibrating tool for oil casing detection

Abstract

The utility model relates to the technical field of metering tools, in particular to a thread specification measuring and calibrating tool for oil casing detection, which comprises a supporting assembly, the supporting assembly comprises a sliding rail, the sliding rail is connected with a measuring assembly in a sliding mode, the measuring assembly comprises a first sliding block, the first sliding block is fixedly connected with a first fixing rod, and the first fixing rod is rotatably connected with a movable rod. The first fixing rod is used for protecting and guiding the movable rod, one end of the movable rod is rotationally connected with a fixing frame, one end of the fixing frame is rotationally connected with a measuring wheel, and the measuring wheel is used for rotating along threads. According to the utility model, the size and deviation of the thread can be quantified by using a tiny measurement unit, compared with a visual or simple measurement tool, the dial indicator can provide more accurate and reliable measurement results, the results measured by using the dial indicator have higher repeatability and consistency, and the influence of subjective factors of operators on the measurement results is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, and more specifically, to a thread specification measurement and calibration tool for oil casing inspection. Background Art

[0002] Oil casing, also known as petroleum casing, is a special pipe for petroleum engineering, which plays the role of fixing the oil and gas well wall or wellbore. The casing is inserted into the wellbore and fixed with cement to help separate the strata of the wellbore and prevent the wellbore from collapsing. At the same time, it ensures the circulation of drilling mud, so as to facilitate drilling and exploitation. Before the oil casing leaves the factory, multiple inspections need to be carried out on its performance, including structural strength, airtightness, thread integrity, etc. At present, the inspection of threads mainly relies on visual inspection.

[0003] Traditional thread specification measurement tools usually rely on physical measurement and visual inspection. These methods may not provide high-precision measurement results. Especially for tiny threads or measurement tasks that require extremely high precision, traditional tools may not be able to reach the required precision level. Using traditional tools for thread measurement usually requires high time and labor costs. The operator may need to repeatedly adjust and measure to ensure accuracy, which may lead to a decrease in production efficiency. Visual inspection or simple measurement methods may be affected by the subjective judgment of the operator, resulting in certain errors in the measurement results. In addition, due to the existence of human factors, the consistency and repeatability of the measurement results may be affected.

[0004] In view of this, there is an urgent need for a thread specification measurement and calibration tool for oil casing inspection to improve the deficiencies of the existing technology. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a thread specification measurement and calibration tool for oil casing inspection to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides a thread specification measurement and calibration tool for oil casing inspection, including a support assembly. The support assembly includes a slide rail, and a measurement assembly is slidably connected to the slide rail. The measurement assembly includes a first slider, and a first fixed rod is fixedly connected to the first slider. The first fixed rod is hollow inside, and a movable rod is rotatably connected to the first fixed rod. The first fixed rod is used to protect and guide the movable rod. One end of the movable rod is rotatably connected to a fixed frame, and one end of the fixed frame is rotatably connected to a measurement wheel. The measurement wheel is used to rotate along the thread. An auxiliary assembly is slidably connected to the end of the slide rail away from the measurement assembly. The auxiliary assembly is used to assist the measurement assembly in the measurement work of the oil casing thread.

[0007] As a further improvement of the technical solution, brackets are fixedly connected to both ends of the slide rail respectively. The brackets are used to support the measuring component and the auxiliary component, reducing the working intensity caused by manual holding by the staff.

[0008] As a further improvement of the technical solution, a micrometer is fixedly connected to the end of the movable rod far from the measuring wheel. One end of the movable rod is connected to the micrometer. A fixing bolt 1 is threadedly connected to the surface of the first slider. The fixing bolt 1 is used to fix the first slider to the slide rail.

[0009] As a further improvement of the technical solution, the auxiliary component includes a second slider. A fixing bolt 2 is fixedly connected to the surface of the second slider. The fixing bolt 2 is used to fix the second slider to the slide rail. The second slider is fixedly connected to a second fixing rod. One end of the second fixing rod is rotatably connected to an auxiliary wheel.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] For the thread specification measurement and calibration tool for oil casing inspection, the micrometer is a high-precision measurement tool that can quantify the size and deviation of the thread with a tiny measurement unit. Compared with visual inspection or simple measurement tools, the micrometer can provide more accurate and reliable measurement results. The measurement results obtained by using the micrometer have high repeatability and consistency, and the influence of the operator's subjective factors on the measurement results is greatly reduced, thus ensuring the accuracy and credibility of the measurement. It is set to be adjustable in size, which can adapt to oil casing threads with different diameters and pitches. The operator can adjust the size of the tool according to specific measurement requirements to ensure that it can cover a variety of thread specifications, improving the flexibility and adaptability of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1;

[0013] Figure 2 It is a schematic diagram of the overall sectional structure of Embodiment 1;

[0014] Figure 3 It is a schematic diagram of the structure of the measuring component of Embodiment 1;

[0015] Figure 4 It is a schematic diagram of the structure of the measuring wheel of Embodiment 1;

[0016] Figure 5 It is a schematic diagram of the structure of the auxiliary component of Embodiment 1.

[0017] The meanings of the various reference numerals in the figure are as follows:

[0018] 1. Support component; 10. Bracket; 11. Slide rail;

[0019] 2. Measuring component; 20. First slider; 21. First fixing bolt; 22. First fixing rod; 23. Movable rod; 24. Micrometer; 25. Fixing bracket; 26. Measuring wheel;

[0020] 3. Auxiliary component; 30. Second slider; 31. Second fixing bolt; 32. Second fixing rod; 33. Auxiliary wheel. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] Embodiment

[0023] Please refer to Figures 1-5 As shown in the figure, this embodiment provides a thread specification measurement and calibration tool for oil casing inspection, including a support component 1. The support component 1 includes a slide rail 11. The slide rail 11 is slidably connected with a measuring component 2. The measuring component 2 includes a first slider 20. The first slider 20 is fixedly connected with a first fixing rod 22. The inside of the first fixing rod 22 is hollow. The first fixing rod 22 is rotatably connected with a movable rod 23. The first fixing rod 22 is used to protect and guide the movable rod 23. One end of the movable rod 23 is rotatably connected with a fixing bracket 25. One end of the fixing bracket 25 is rotatably connected with a measuring wheel 26. The measuring wheel 26 is used to rotate along the thread. The end of the slide rail 11 away from the measuring component 2 is slidably connected with an auxiliary component 3. The auxiliary component 3 is used to assist the measuring component 2 in measuring the oil casing thread.

[0024] The above working principle: The measuring component 2 can move along the surface of the oil casing through the slide rail 11 to facilitate comprehensive and accurate thread measurement and locate the thread position to be measured. The inside of the first fixing rod 22 is hollow, which helps to reduce the overall weight and improve the operability of the tool. The first fixing rod 22 is rotatably connected to the movable rod 23, and the latter is designed to protect and guide other components to ensure the stability and accuracy of the measurement process. Once the measuring component 2 is fixed in the correct position, the fixing bracket 25 and the measuring wheel 26 start to rotate to measure the key parameters of the thread. The rotation of the measuring wheel 26 is controlled by the tool operator. The function of the measuring wheel 26 is to rotate along the surface of the oil casing thread to accurately measure key parameters such as pitch and thread depth, and the data of each measurement point can be accurately recorded. The auxiliary component 3 mainly assists the measuring component 2 in accurately measuring the oil casing thread.

[0025] In order to improve the measurement efficiency, in this embodiment, brackets 10 are fixedly connected to both ends of the slide rail 11. The brackets 10 are used to support the measurement assembly 2 and the auxiliary assembly 3, reducing the working intensity caused by the staff holding by hand, and lifting the measurement assembly 2 to a certain height to adapt to oil casing pipes of different heights.

[0026] In order to enable precise measurement, in this embodiment, a dial indicator 24 is fixedly connected to one end of the movable rod 23 away from the measurement wheel 26. One end of the movable rod 23 is connected to the dial indicator 24. A fixing bolt 21 is threadedly connected to the surface of the first slider 20. The fixing bolt 21 is used to fix the first slider 20 to the slide rail 11. When the measurement wheel 26 is in close contact with the inner wall of the oil casing pipe, the first slider 20 is fixed to the slide rail 11 through the fixing bolt 21, avoiding measurement errors caused by the movement of the first slider 20 during measurement.

[0027] In order to stabilize the measurement assembly 2 during measurement, in this embodiment, the auxiliary assembly 3 includes a second slider 30. A fixing bolt 31 is fixedly connected to the surface of the second slider 30. The fixing bolt 31 is used to fix the second slider 30 to the slide rail 11. The second slider 30 is fixedly connected to a second fixing rod 32. One end of the second fixing rod 32 is rotatably connected to an auxiliary wheel 33. When detecting the device, it is to prevent the phenomenon of deviation. The auxiliary assembly 3 is abutted against the inner side of the oil pipe sleeve, so as to enhance the accuracy when the measurement assembly 2 measures the oil pipe sleeve.

[0028] When the thread specification measurement and calibration tool for oil casing pipe detection in this embodiment is specifically used, the brackets 10 are used to support the measurement assembly 2 and the auxiliary assembly 3, reducing the working intensity caused by the staff holding by hand, and lifting the measurement assembly 2 to a certain height to adapt to oil casing pipes of different heights. The measurement assembly 2 can move along the surface of the oil casing pipe through the slide rail 11, so as to perform comprehensive and accurate thread measurement and locate the thread position to be measured. When the measurement wheel 26 is in close contact with the inner wall of the oil casing pipe, the first slider 20 is fixed to the slide rail 11 through the fixing bolt 21, avoiding measurement errors caused by the movement of the first slider 20 during measurement. The inside of the first fixing rod 22 is hollow, which helps to reduce the overall weight and improve the operability of the tool. The first fixing rod 22 is rotatably connected to the movable rod 23, and the latter is designed to protect and guide other components, ensuring the stability and accuracy of the measurement process. Once the measurement assembly 2 is fixed in the correct position, the fixing frame 25 and the measurement wheel 26 start to rotate to measure the key parameters of the thread. The rotation of the measurement wheel 26 is controlled by the tool operator. The function of the measurement wheel 26 is to rotate along the thread surface of the oil casing pipe to accurately measure key parameters such as pitch and thread depth, and can accurately record the data of each measurement point. The auxiliary assembly 3 mainly functions to assist the measurement assembly 2 in accurately measuring the threads of the oil casing pipe.

[0029] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A thread specification measurement and calibration tool for oil casing inspection, comprising a support assembly (1), characterized in that: The support assembly (1) comprises a slide rail (11), the slide rail (11) is slidably connected to a measuring assembly (2), the measuring assembly (2) comprises a slider (20), the slider (20) is fixedly connected to a fixing rod (22), the fixing rod (22) is hollow inside, the fixing rod (22) is rotatably connected to a movable rod (23), the fixing rod (22) is used to protect and guide the movable rod (23), one end of the movable rod (23) is rotatably connected to a fixing frame (25), one end of the fixing frame (25) is rotatably connected to a measuring wheel (26), the measuring wheel (26) is used to rotate along a thread, and one end of the slide rail (11) away from the measuring assembly (2) is slidably connected to an auxiliary assembly (3), the auxiliary assembly (3) is used to assist the measuring assembly (2) in measuring the threads of the oil casing.

2. The thread specification measurement and calibration tool for oil casing detection according to claim 1 is characterized in that: Brackets (10) are respectively fixedly connected to both ends of the slide rail (11), and the brackets (10) are used to support the measuring component (2) and the auxiliary component (3), thereby reducing the work intensity caused by the staff holding the components.

3. The thread specification measurement and calibration tool for oil casing detection according to claim 1 is characterized in that: One end of the movable rod (23) away from the measuring wheel (26) is fixedly connected to a dial gauge (24), one end of the movable rod (23) is connected to the dial gauge (24), and a fixing bolt (21) is threadedly connected to the surface of the sliding block (20), and the fixing bolt is used to fix the sliding block (20) to the sliding rail (11).

4. The thread specification measurement and calibration tool for oil casing detection according to claim 1 is characterized in that: The auxiliary component (3) comprises a second slider (30), a second fixing bolt (31) being fixedly connected to the surface of the second slider (30), the second fixing bolt (31) being used to fix the second slider (30) to the slide rail (11), the second slider (30) being fixedly connected to a second fixing rod (32), one end of the second fixing rod (32) being rotatably connected to an auxiliary wheel (33).

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