Defect quantitative nondestructive testing equipment for oil casing

Abstract

The utility model belongs to the technical field of nondestructive testing equipment, and particularly relates to defect quantitative nondestructive testing equipment for an oil casing, which comprises a base, two supports are fixed at the top of the base, support blocks are fixed on the supports, and two rotating shafts are rotatably connected between the two supports through bearings. Through the arrangement of the base, the bracket, the supporting block, the rotating shaft, the driving roller, the transmission assembly, the auxiliary frame, the supporting plate, the nondestructive testing equipment body, the detection probe and the moving assembly, in the process of using the defect quantitative nondestructive testing equipment for the oil casing, the oil casing to be detected can be placed on the equipment; the petroleum casing pipe can be driven to rotate by utilizing the arranged driving roller, and multiple positions on the surface of the petroleum casing pipe can be simultaneously subjected to nondestructive detection in the rotation process of the petroleum casing pipe, so that the detection efficiency of the petroleum casing pipe can be improved, and meanwhile, the whole detection equipment can be conveniently moved in a short distance by utilizing the arranged moving assembly.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing equipment technology, specifically a quantitative non-destructive testing equipment for defects in oil casing pipes. Background Technology

[0002] Oil casing is a large-diameter pipe used to fix the walls or boreholes of oil and gas wells. Usage: The casing is inserted into the borehole and fixed with cement to prevent wellbore collapse and ensure drilling mud circulation for drilling and production. Depending on the drilling depth and geological conditions, several layers of casing are used in each well. After the casing is run into the well, it is cemented. Casing can be classified according to its use as guide casing, surface casing, technical casing, and oil layer casing. Before use, oil casing needs to undergo non-destructive testing (NDT). However, currently, NDT of oil casing is generally performed by workers using handheld testing equipment, which is inefficient. Therefore, we propose a quantitative NDT device for oil casing defects to solve this problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a quantitative non-destructive testing device for defects in oil casing pipes, solving the problems mentioned in the background section.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A quantitative non-destructive testing (NDT) device for oil casing pipe defects includes a base. Two supports are fixed to the top of the base, each support having a support block. Two rotating shafts are rotatably connected between the two supports via bearings. Two drive rollers are fixed to the surface of each rotating shaft. A transmission assembly for driving the two rotating shafts to rotate synchronously is provided above the base. Two auxiliary frames are fixed to the top of the base, and each rotating shaft is rotatably connected to the two auxiliary frames via bearings. Support plates are fixed to the two auxiliary frames. The NDT device body is fixed to the top of the base on one side of the support plate, and the detection probe of the NDT device body is fixed to the top of the support plate. A moving assembly is provided on the top of the base.

[0008] Furthermore, the transmission assembly includes a transmission shaft rotatably connected between two supports via bearings. The transmission shaft is rotatably connected to two auxiliary supports via bearings. Two driving wheels are fixed to the surface of the transmission shaft, and driven wheels are fixed to the surface of each shaft. The driven wheels are respectively connected to the corresponding driving wheels via belts.

[0009] Furthermore, the movable component includes two U-shaped plates fixed to the top of the base. The top of each U-shaped plate is rotatably connected to a lead screw via a bearing. The bottom of each lead screw is rotatably connected to the top of the base via a bearing. The surface of each lead screw is threaded with a movable plate. The bottom of each movable plate slides through the base and extends below it, where a movable frame is fixed. The four corners of the bottom of each movable frame are fixed with universal self-locking wheels.

[0010] Furthermore, each lead screw has a sprocket fixed to its surface, and the two sprockets are connected by a chain drive.

[0011] Furthermore, the surfaces of the drive rollers are all fixed with anti-slip sleeves, which are all made of rubber.

[0012] Furthermore, two reinforcing plates are fixed to the top of the base, and one side wall of each reinforcing plate is fixedly connected to the body of the non-destructive testing equipment.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a quantitative non-destructive testing device for defects in oil casing pipes, which has the following beneficial effects:

[0015] This utility model, by setting up a base, bracket, support block, rotating shaft, drive roller, transmission assembly, auxiliary frame, support plate, non-destructive testing equipment body, detection probe, and moving assembly, allows the oil casing to be tested to be placed on the equipment during the quantitative non-destructive testing of defects in oil casing. The drive roller can drive the oil casing to rotate, and during the rotation of the oil casing, non-destructive testing can be performed on multiple positions on its surface simultaneously, thereby improving the efficiency of oil casing testing. At the same time, the moving assembly facilitates the short-distance movement of the entire testing equipment. Attached Figure Description

[0016] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a third-view schematic diagram of the overall structure of this utility model.

[0019] In the diagram: 1. Base; 2. Bracket; 3. Support block; 4. Rotating shaft; 5. Drive roller; 6. Transmission assembly; 601. Drive shaft; 602. Drive wheel; 603. Driven wheel; 604. Belt; 7. Auxiliary frame; 8. Support plate; 9. Non-destructive testing equipment body; 10. Testing probe; 11. Moving assembly; 1101. U-shaped plate; 1102. Lead screw; 1103. Moving plate; 1104. Moving frame; 1105. Universal self-locking wheel; 1106. Sprocket; 1107. Chain; 12. Anti-slip sleeve; 13. Reinforcing plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] like Figure 1 , Figure 2 and Figure 3As shown in the figure, an embodiment of this utility model discloses a quantitative non-destructive testing device for defects in oil casing pipes, including a base 1. Two supports 2 are fixed to the top of the base 1, and each support 2 is fixed with a support block 3. Two rotating shafts 4 are rotatably connected between the two supports 2 via bearings. Two drive rollers 5 are fixed to the surface of each rotating shaft 4, and anti-slip sleeves 12 are fixed to the surface of each drive roller 5. The anti-slip sleeves 12 are made of rubber, which increases the friction between the drive rollers 5 and the pipe surface, facilitating better rotation. A transmission assembly 6 is provided above the base 1 for driving the two rotating shafts 4 to rotate synchronously. Two auxiliary frames 7 are fixed to the top of the base 1, and the rotating shafts 4 are rotatably connected to the two auxiliary frames 7 via bearings. Support plates 8 are fixed to the two auxiliary frames 7. A non-destructive testing device body 9 is fixed to one side of the support plate 8 and fixed to the top of the base 1. Two reinforcing plates 13 are fixed to the top of the base 1, and one side wall of each reinforcing plate 13 is fixedly connected to the non-destructive testing device body 9. The support plate 8 provides auxiliary support for the non-destructive testing equipment body 9, making it more stable when installed on top of the base 1. The testing probe 10 of the non-destructive testing equipment body 9 is fixed on the top of the support plate 8. The top of the base 1 is equipped with a moving component 11. When using this non-destructive testing equipment for quantitative defects in oil casing, the oil casing can be placed on two support blocks 3. By activating the transmission component 6, two rotating shafts 4 can be driven to rotate. After the rotating shafts 4 rotate, they will drive the drive roller 5 to rotate. At this time, the drive roller 5 can drive the placed oil casing to rotate. Multiple testing probes 10 are fixed at equal intervals on the top of the support plate 8, so that multiple positions of the oil casing can be tested simultaneously during rotation. After multiple positions are tested, the oil casing can be moved horizontally a certain distance, and the untested positions can be tested. Finally, after the oil casing is tested, the test data can be displayed and saved through the non-destructive testing equipment body 9.

[0023] like Figure 1 and Figure 2 As shown, in some embodiments, the transmission assembly 6 includes a transmission shaft 601 rotatably connected between two supports 2 via bearings. The transmission shaft 601 is rotatably connected to two auxiliary supports 7 via bearings. Two drive wheels 602 are fixed to the surface of the transmission shaft 601, and driven wheels 603 are fixed to the surface of each rotating shaft 4. The driven wheels 603 are respectively connected to the corresponding drive wheels 602 via belts 604. In use, the starting motor drives the transmission shaft 601 to rotate. After the transmission shaft 601 rotates, it can simultaneously drive the two rotating shafts 4 to rotate under the cooperation of the drive wheels 602, driven wheels 603 and belts 604, thereby saving production costs.

[0024] like Figure 2 and Figure 3As shown, in some embodiments, the moving assembly 11 includes two U-shaped plates 1101 fixed to the top of the base 1. The top of each U-shaped plate 1101 is rotatably connected to a lead screw 1102 via bearings. A sprocket 1106 is fixed to the surface of each lead screw 1102. The two sprockets 1106 are connected by a chain 1107, allowing both lead screws 1102 to rotate simultaneously under the action of a single motor, thus saving production costs. The bottom of each lead screw 1102 is rotatably connected to the top of the base 1 via bearings. A moving plate 1103 is threaded onto the surface of each lead screw 1102. The bottom of each moving plate 1103 slides through the base 1, extending below it and being fixed with a moving frame 1. 104. The bottom four corners of the movable frame 1104 are all fixed with universal self-locking wheels 1105. When it is necessary to move the entire testing equipment, the motor can be started to drive one of the lead screws 1102 to rotate. With the cooperation of the sprocket 1106 and the chain 1107, both lead screws 1102 can be driven to rotate at the same time. After the lead screws 1102 rotate, they will drive the movable plate 1103 to move down. After the movable plate 1103 moves down, it will drive the movable frame 1104 to move down. After the movable frame 1104 moves down, it will drive the universal self-locking wheels 1105 to contact the ground. At this time, the base 1 can be lifted up and then moved. After the movement is completed, the motor can be started to retract and reset the universal self-locking wheels 1105.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for quantitative non-destructive testing of defects in oil casings, comprising a base (1), characterised in that: The top of the base (1) is fixed with two supports (2), the supports (2) are fixed with support blocks (3), two rotation shafts (4) are rotatably connected between the two supports (2) through bearings, the surfaces of the rotation shafts (4) are fixed with two drive rollers (5), the top of the base (1) is provided with a transmission assembly (6) for driving the two rotation shafts (4) to rotate synchronously, the top of the base (1) is fixed with two auxiliary frames (7), the rotation shafts (4) are rotatably connected with the two auxiliary frames (7) through bearings, the two auxiliary frames (7) are fixed with support plates (8), one side of the support plate (8) is provided with a nondestructive testing equipment body (9) fixed on the top of the base (1), the detection probe (10) of the nondestructive testing equipment body (9) is fixed on the top of the support plate (8), and the top of the base (1) is provided with a moving assembly (11).

2. The apparatus for quantitative non-destructive testing of defects in casings according to claim 1, characterized in that: The transmission assembly (6) comprises a transmission shaft (601) rotatably connected between the two supports (2) through bearings, the transmission shaft (601) is rotatably connected with the two auxiliary frames (7) through bearings, the surface of the transmission shaft (601) is fixed with two driving wheels (602), and the surfaces of the rotation shafts (4) are fixed with driven wheels (603). The driven wheels (603) are drivenly connected with the corresponding driving wheels (602) through belts (604) respectively.

3. The apparatus for quantitative non-destructive testing of defects in casings according to claim 1, characterized in that: The moving assembly (11) comprises two U-shaped plates (1101) fixed on the top of the base (1), the top of the U-shaped plate (1101) is rotatably connected with a lead screw (1102) through a bearing, the bottom end of the lead screw (1102) is rotatably connected with the top of the base (1) through a bearing, and the surface of the lead screw (1102) is threadedly connected with a moving plate (1103). The bottom of the two moving plates (1103) is slidably connected with a moving frame (1104) extending below the base (1), and a universal self-locking wheel (1105) is fixed to the bottom of the moving frame (1104).

4. The apparatus for quantitative non-destructive testing of defects in casings according to claim 3, characterized in that: The surface of the lead screw (1102) is fixed with a chain gear (1106), and the two chain gears (1106) are drivingly connected through a chain (1107).

5. The apparatus for quantitative non-destructive testing of defects in casings according to claim 1, characterized in that: The surfaces of the drive rollers (5) are fixed with anti-skid sleeves (12), and the anti-skid sleeves (12) are made of rubber.

6. The apparatus for quantitative non-destructive testing of defects in casings according to claim 1, characterized in that: The top of the base (1) is fixed with two reinforcing plates (13), and the reinforcing plates (13) are fixedly connected with the nondestructive testing equipment body (9) on one side wall.

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