Coiled tubing downhole synchronous electromagnetic detection tool

Abstract

The utility model relates to a kind of continuous oil pipe downhole synchronous electromagnetic detection tool, its upper shell and lower shell of being equipped with probe installation slot both ends are fixed with the roller mounting bracket of being equipped with oil pipe roller and in the left and right two ends one side through hinge connection, the other side is connected through spring in spring fixed support, upper shell and lower shell form detection passage after being connected;The input end of encoder fixed outside roller mounting bracket both ends of lower shell is connected with the roller axle of oil pipe roller in roller mounting bracket;Electromagnetic detection probe is fixed in the probe installation slot of the detection passage upper and lower sides, and detection accessory connected with electromagnetic detection probe is placed in wiring slot, and continuous oil pipe can pass through from oil pipe roller and detection passage.This tool can not only ensure the accurate detection of electromagnetic detection probe, but also make the continuous oil pipe to be detected pass smoothly without causing damage, and can also improve the continuity of detection and the reliability of positioning, with significant use effect.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing tooling technology for coiled tubing, and in particular to a synchronous electromagnetic testing tooling for running coiled tubing into wells. Background Technology

[0002] Coiled tubing is a flexible drill pipe with excellent flexibility, widely used in oil and gas extraction. However, due to factors such as high temperature and pressure, acid corrosion, extrusion expansion, and alternating loads, the surface of coiled tubing is prone to defects such as cracks, indentations, corrosion pits, and pinholes. If these defects are not detected and repaired in time, accidents such as tubing jamming, breakage, wrinkling, and collapse can easily occur, leading to serious consequences such as economic losses and even personal injury.

[0003] Alternating current electromagnetic field testing is a novel non-destructive testing technology. Due to its advantages such as insensitivity to lift-off changes in coiled tubing during eddy current non-destructive testing, high detection sensitivity for shallow and narrow-opening cracks, non-contact testing that eliminates the need to clean surface coatings and impurities, and high testing efficiency, it can be applied to the testing of coiled tubing.

[0004] Currently, there are few electromagnetic inspection devices available for simultaneous, on-site, or concurrent, defect detection of coiled tubing during downhole operations. Most devices can only inspect the coiled tubing during non-operational periods. If simultaneous inspection during downhole operations could be achieved, defects present during operation could prevent them from affecting the tubing's performance after downhole. Therefore, a detection device that does not interfere with downhole operation is needed, allowing for simultaneous inspection and downhole testing. However, currently, there are very few defect detection devices suitable for this operational process. Defect detection of coiled tubing during downhole operations requires ensuring the tubing's smooth passage. Current defect detection devices for in-service coiled tubing have the following problems: 1. Existing tooling fixtures often employ a "direct-pass" channel design for clamping devices. During the continuous passage of the coiled tubing over extended periods, the outer wall of the tubing and the inner wall of the channel generate significant heat due to continuous friction, directly impacting the stable operation of the testing device. While some tooling fixtures utilize a "small roller transmission" design to reduce friction, the extremely small contact area between the small roller and the coiled tubing under test results in a significantly increased pressure in the contact area, easily leading to transmission failures and testing malfunctions. The "direct-pass" channel design of the testing fixtures is not optimized for the "stability" of the coiled tubing during passage, making it prone to deviation and swaying during tubing transmission. This not only affects the relative positional accuracy of the detection sensor and the tubing but may also distort the detection data, further reducing overall testing reliability.

[0005] 2. For joints and other diameter-changing structures frequently encountered during coiled tubing inspection, existing tooling lacks a suitable design. Its fixed channel dimensions and non-separable overall structure cannot meet the space requirements for these structures to pass through. This not only causes scratches and damage to the structures but also interrupts the inspection process, preventing the structures from passing smoothly through the tooling for subsequent testing. The opening and closing of existing tooling for these structures largely relies on manual operation, which is labor-intensive and inefficient, requiring frequent interruptions for adjustments, severely impacting operational convenience and the continuity of inspection.

[0006] 3. During continuous inspection of coiled tubing, it is difficult to locate defects. Existing positioning methods mostly rely on single signal acquisition, which is prone to positioning deviations and makes it difficult to accurately pinpoint the location of defects.

[0007] To enable the inspection of coiled tubing, the following related patented technologies have emerged: Patent application publication number CN114113307A discloses an omnidirectional defect detection device and method for coiled tubing. This device primarily utilizes a composite probe excitation source with built-in ACFM and MFL to induce a uniform electromagnetic field on the surface of the coiled tubing, thereby acquiring the magnetic field distortion signal caused by surface defects and achieving omnidirectional defect detection. This device and method, by employing the composite probe with built-in ACFM and MFL, improves the detection efficiency of coiled tubing defects.

[0008] However, its design has a drawback: the rollers pose a significant risk of damaging the coiled tubing during the insertion process, making continuous monitoring difficult.

[0009] Patent publication number CN207420499U discloses a coiled tubing testing clamping device, comprising a body, connecting bolts, connecting sheet metal, a coil sensor carrier, a connecting nut, a testing coil, a connecting plate, a connecting rod, a coiled tubing, a support plate, and an electrical box. It facilitates disassembly and installation and enables non-destructive testing of the coiled tubing without affecting its normal operation.

[0010] Although the device can save on testing costs, its drawback is that the oil pipe channel is designed as a direct channel, which has high friction and cannot achieve long-term continuous testing.

[0011] In conclusion, the testing equipment for coiled tubing still needs improvement. Summary of the Invention

[0012] To overcome the aforementioned problems, this utility model provides a synchronous electromagnetic inspection tooling for running coiled tubing into the well, used to continuously and stably detect defects while the coiled tubing is being run into the well. This allows for the timely detection and remediation of defects in the coiled tubing before it enters the well, improving the quality of the coiled tubing itself inside the well, reducing well workover costs caused by defects in the coiled tubing, and lowering production costs.

[0013] To achieve the above objectives, the present invention adopts the following technical solution: A synchronous electromagnetic testing fixture for running coiled tubing into the well includes an encoder and a test bench, wherein: The upper and lower outer shells, which are equipped with probe mounting slots, are fixed with roller mounting brackets containing oil pipe rollers at both ends. They are connected by hinges on one side of the left and right ends and by springs installed in spring fixing brackets on the other side. The upper and lower outer shells are connected to form a detection channel. The input end of the encoder, which is fixed outside the roller mounting brackets at both ends of the lower housing, is connected to the roller shaft of the oil pipe roller in the roller mounting bracket; The output shaft of the drive motor, which is equipped with a control switch and fixed to one side of the lower housing, is connected to the chain shaft of the hinge. Electromagnetic detection probes are fixed in the probe mounting slots located on the upper and lower sides of the detection channel. Detection accessories connected to the electromagnetic detection probes are placed in the wiring slots. Continuous tubing can pass through the tubing rollers and the detection channel.

[0014] Preferably, the wiring slot is located at the top of the probe mounting slot in the upper housing.

[0015] Preferably, a semi-circular hole matching the radius of the continuous tubing is provided at the mating point of the plates on both sides of the probe mounting groove in the upper and lower outer shells, and the semi-circular hole forms a detection channel after mating.

[0016] Preferably, probe fixing threaded holes are provided in the plates on both sides of the probe mounting slot in the upper and lower outer shells, and the electromagnetic detection probe is fixed in the probe mounting slot by screws and probe fixing threaded holes 4.

[0017] Preferably, the roller mounting brackets are fixed to the outside of the probe mounting slots on both sides of the upper and lower outer shells respectively. The roller mounting brackets are U-shaped frames with roller shaft holes in the bracket plates on both sides. The roller shafts of the oil pipe rollers are installed in the roller shaft holes, and bearings are installed between the roller shafts and the roller shaft holes. A frame connection hole is provided in the bottom plate of the roller mounting bracket in the lower outer shell.

[0018] Preferably, the spring fixing bracket is composed of plates that are fixed to the outer ends of the plates on both sides of the probe mounting slot and are provided with spring shaft holes, and spring mounting shafts can be installed in the spring shaft holes; the two ends of the spring are respectively hung on the outside of the spring mounting shafts in the spring fixing brackets of the upper and lower outer shells.

[0019] Preferably, the tubing roller is an arc-shaped column and the arc surface of the arc-shaped column matches the radius of the continuous tubing.

[0020] Preferably, the hinge is fixedly installed between the upper and lower outer shells through screw holes and bolts in the hinge fixing plate at one end of the upper outer shell and screw holes and bolts in the lower outer shell.

[0021] Preferably, the drive motor is a small geared motor equipped with a manual control switch and a foot control pedal, and is fixed to one side of the lower housing with adhesive; the output end of the drive motor is connected to the chain shaft of the hinge via a coupling.

[0022] Preferably, the platform is fixedly connected to the roller mounting bracket in the lower housing via platform connection holes and bolts; the platform is made of aluminum profile.

[0023] Compared with the prior art, the significant use of this utility model is as follows: 1. In this tooling, the transmission component of the coiled tubing is a "tubing roller". In order to protect the coiled tubing during the testing process, this utility model uses tubing rollers to transport the coiled tubing to be tested, increasing the contact area with the coiled tubing. While reducing friction loss, it forms a uniform radial constraint, which can effectively support and smoothly feed the coiled tubing, ensuring that the coiled tubing passes through smoothly and at a constant speed, and enabling continuous testing of the coiled tubing for a long time.

[0024] 2. An upper housing with a drive motor driving the hinge and spring in synergy was designed: the drive motor provides active driving force to achieve rapid separation of the upper and lower housings, and the spring provides auxiliary restoring force and buffering force. It can avoid the variable diameter structure in the continuous tubing without manual opening and closing, which greatly improves the convenience of operation and the continuity of inspection.

[0025] 3. A dual-encoder redundant positioning system was constructed: two encoders are linked to different oil pipe rollers at both ends of the lower housing, and their data are mutually verified. When the encoder fails, it can automatically switch to compensation to ensure continuous and reliable acquisition of oil pipe displacement information and achieve accurate locking and tracking of defect locations.

[0026] In summary, this invention provides a testing fixture for non-destructive testing of coiled tubing, capable of mounting an electromagnetic detection probe. The annular electromagnetic detection probe is installed in the probe mounting slot of the fixture via a probe fixing threaded hole. When a variable-diameter structure such as a coiled tubing joint passes through, the fixture can separate the upper and lower outer shells through the coordinated action of a drive motor and a spring, ensuring the smooth passage of the special structure. After passing, the shells reclose under the action of the spring to complete subsequent testing. The tubing roller has an arc surface matching the radius of the coiled tubing, allowing it to roll over the coiled tubing and assisting the coiled tubing in passing through the electromagnetic detection probe within the fixture, enabling the electromagnetic detection probe to perform defect detection on the coiled tubing. The excitation of the electromagnetic coil, signal amplification, and sensor power supply of the electromagnetic detection probe, along with the data transmission lines, are connected to the outside world through a wiring slot in the upper outer shell. This fixture ensures accurate detection by the electromagnetic detection probe, allows the coiled tubing to pass smoothly without damage, and improves the continuity of testing and the reliability of positioning. This fixture can be used to continuously and smoothly detect defects in coiled tubing while it is being run into the well, demonstrating significant effectiveness. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2 yes Figure 1 Front view of the main body of the inspection tooling.

[0029] Figure 3 yes Figure 2 The left view.

[0030] Figure 4 yes Figure 1 and Figure 2 A schematic diagram of the upper and middle outer shell.

[0031] Figure 5 yes Figure 1 and Figure 2 A schematic diagram of the lower outer shell.

[0032] In the picture: 1. Upper outer shell, 2. Oil pipe roller, 3. Detection channel, 4. Probe fixing threaded hole, 5. Stand connection hole, 6. Spring fixing bracket, 7. Probe mounting slot, 8. Roller mounting bracket, 9. Wiring slot, 10. Lower outer shell, 11. Stand, 12. Drive motor, 13. Hinge, 14. Hinge fixing plate, 15. Encoder, 17. Spring. Detailed Implementation

[0033] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of this utility model. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] See Figures 1-5 A synchronous electromagnetic testing fixture for running coiled tubing into wells, comprising an encoder 15 and a test stand 11, wherein: The upper outer shell 1 and the lower outer shell 10, which are equipped with probe mounting slots 7, are fixed at both ends of the front and rear ends with roller mounting brackets 8 on which oil pipe rollers 2 are mounted. They are connected on one side of the left and right ends by hinges 13 and on the other side by springs 17 installed in spring fixing brackets 6. The upper outer shell 1 and the lower outer shell 10 are connected to form a detection channel 3. The input end of the encoder 15, which is fixed outside the roller mounting brackets 8 at both ends of the lower housing 10, is connected to the roller of the oil pipe roller 2 in the roller mounting bracket 8. The output shaft of the drive motor 12, which is equipped with a control switch and fixed on one side of the lower housing 10, is connected to the chain shaft of the hinge 13. Electromagnetic detection probes are fixed in the probe mounting slots 7 located on the upper and lower sides of the detection channel 3. The detection accessories connected to the electromagnetic detection probes are placed in the wiring slots 9. The continuous tubing can pass through the tubing rollers 2 and the detection channel 3.

[0037] This invention relates to a testing fixture developed for continuous and stable defect detection during the running of coiled tubing into the well. The testing probe in this invention consists of two semi-circular bodies, fixed in probe mounting slots 7 within the upper and lower outer shells 1 and 10 on either side of the testing channel 3. As the coiled tubing passes through the testing channel 3 and tubing rollers 2 formed by the connection of the upper and lower outer shells 1 and 10, it can be detected by the electromagnetic testing probe fixed in this fixture, enabling timely discovery of defects and prompt repair or replacement, thus preventing safety accidents and economic losses caused by defects in the coiled tubing run into the well later.

[0038] An electromagnetic detection probe, housed in wiring trough 9, is connected to a host computer via a cable to collect and transmit defect-related detection signals in real time. Encoder 15 is connected to the host computer's pulse input interface via a signal line, converting mileage and position information during the running-in of the coiled tubing into pulse signals for real-time transmission, thus enabling precise defect location in conjunction with the detection probe signal. The power cable of drive motor 12 is connected to the output of the host computer's motor drive module, and its control signal line is connected to the host computer's I / O control interface. The host computer outputs speed adjustment, start / stop, and other commands to the drive module via the control interface, and the drive module converts these signals into corresponding voltage signals to control the operation of drive motor 12.

[0039] The output shaft of the drive motor 12, installed outside the lower housing 10, is connected to the chain shaft of the hinge 13. When the variable diameter section of the coiled tubing, such as the coupling, passes through the tubing channel 3, the upper housing 1 can be easily opened by controlling the switch of the drive motor 12, allowing its variable diameter section to pass through the tubing channel 3. This reduces the operator's workload, improves work efficiency, and protects the variable diameter section of the coiled tubing passing through it.

[0040] This fixture is equipped with two encoders 15, which can synchronously collect displacement data and compensate for each other. They are associated with the detection signal in real time and generate a complete report of "defect location-type-degree" on the host computer, realizing continuous defect and wall thickness detection and precise positioning of continuous tubing over a long period of time.

[0041] Based on the above embodiment one, the present invention also has the following embodiments: In a preferred embodiment, the wiring slot 9 is located at the top of the probe mounting slot 7 in the upper housing 1. The detection accessories connected to the electromagnetic detection probe are placed in the wiring slot 9, ensuring neat and unobstructed wiring, preventing tangling, compression, and friction damage, guaranteeing stable signal transmission, and facilitating convenient assembly and maintenance with a clear path. Operation can be performed without disassembling the electromagnetic detection probe, improving maintenance efficiency.

[0042] In a preferred embodiment, a semi-circular hole matching the radius of the continuous tubing is provided at the mating point of the plates on both sides of the probe mounting groove 7 in the upper housing 1 and the lower housing 10. The semi-circular hole forms a detection channel 3 after mating.

[0043] In a preferred embodiment, probe fixing threaded holes 4 are provided in the plates on both sides of the probe mounting slot 7 in the upper housing 1 and the lower housing 10. The electromagnetic detection probe is fixed in the probe mounting slot 7 by screws and the probe fixing threaded holes 4. The two semi-circular electromagnetic detection probes are fixed in the probe mounting slot 7 by screws and the probe fixing threaded holes 4, which facilitates easy assembly and disassembly.

[0044] In a preferred embodiment: the roller mounting brackets 8 are fixed to the outside of the probe mounting slots 7 on both sides of the upper housing 1 and the lower housing 10, respectively. The roller mounting brackets 8 are U-shaped frames with roller shaft holes in the bracket plates on both sides. The roller shafts of the tubing rollers 2 are installed in these roller shaft holes, and bearings are installed between the roller shafts and the roller shaft holes. A frame connection hole 5 is provided in the bottom plate of the roller mounting brackets 8 in the lower housing 10. The bearings installed between the roller shaft holes and the roller shafts of the roller mounting brackets 8 make the rolling of the tubing rollers 2 more flexible. When the coiled tubing passes through the tooling, the tubing rollers 2 contact the outer wall of the coiled tubing and roll accordingly. On the one hand, this helps the coiled tubing to pass smoothly through the electromagnetic detection probe area in the tooling; on the other hand, it reduces frictional loss between the coiled tubing and the tooling, thereby enabling the electromagnetic detection probe to continuously and stably perform all-round defect detection on the coiled tubing.

[0045] In a preferred embodiment, the spring fixing bracket 6 is composed of plates that are fixed to the outer ends of the plates on both sides of the probe mounting groove 7 and have spring shaft holes, and spring mounting shafts can be installed in the spring shaft holes; the two ends of the spring 17 are respectively hung on the outside of the spring mounting shafts in the spring fixing bracket 6 of the upper outer shell 1 and the lower outer shell 10.

[0046] In a preferred embodiment, the tubing roller 2 is an arc-shaped column with the arc surface matching the radius of the continuous tubing, which can effectively support and straighten the continuous tubing passing through this tooling.

[0047] In a preferred embodiment, the hinge 13 is fixedly installed between the upper outer shell 1 and the lower outer shell 10 through screw holes and bolts in the hinge fixing plate 14 at one end of the upper outer shell 1 and screw holes and bolts in one end of the lower outer shell 10.

[0048] In a preferred embodiment, the drive motor 12 is a small geared motor equipped with a manual control switch and a foot control pedal, which features high output torque and rapid response. It is fixed to one side of the lower housing 10 with adhesive. The output end of the drive motor 12 is connected to the chain shaft of the hinge 13 via a coupling. The drive motor 12 is prior art, and the manual control switch and foot control pedal are electrically connected to the control mechanism of the drive motor 12.

[0049] In a preferred embodiment, the platform 11 is fixedly connected to the roller mounting bracket 8 in the lower housing 10 via the platform connecting hole 5 and bolts; the platform 11 is made of aluminum profile, which is lightweight and easy to transport.

[0050] The working principle of this utility model: When inspecting defects in coiled tubing, the entire coiled tubing passes through the inspection channel 3 of this fixture. The inspection process relies on the structure of this fixture and electromagnetic detection technology, including an electromagnetic detection probe, to complete the inspection. The fixture uses multiple sets of symmetrically distributed tubing rollers 2 to provide stable support and low-friction transmission for the coiled tubing. The flexible rolling of the tubing rollers 2 creates uniform radial constraint when guiding the coiled tubing, ensuring that the coiled tubing passes stably and at a constant speed through the inspection area where the electromagnetic detection probe is installed in the probe mounting slot 7. The frame 11 securely fixes the entire fixture body through the frame connecting holes 5 and bolts, preventing the fixture from shaking during the inspection process and affecting accuracy.

[0051] When a variable-diameter structure such as a joint of a continuous tubing passes through, the hinge 13 is rotated by the drive motor 12, and under the synergistic action of the spring 17, the separation and closure between the upper outer shell 1 and the lower outer shell 10 are realized, ensuring that the special structure passes through smoothly without interrupting the inspection.

[0052] The embodiments described above are merely typical examples, but the present invention is not limited to these embodiments. Those skilled in the art can make modifications without departing from the spirit and teachings of the present invention. Although the present invention 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 inventive spirit and concept of the present invention should be included within the protection scope of the present invention. Therefore, the protection scope is not limited to the above description.

Claims

1. A synchronous electromagnetic testing fixture for running coiled tubing into the well, comprising an encoder and a test stand, characterized in that, The upper and lower outer shells, which are equipped with probe mounting slots, are fixed with roller mounting brackets containing oil pipe rollers at both ends. They are connected by hinges on one side of the left and right ends and by springs installed in spring fixing brackets on the other side. The upper and lower outer shells are connected to form a detection channel. The input end of the encoder, which is fixed outside the roller mounting brackets at both ends of the lower housing, is connected to the roller shaft of the oil pipe roller in the roller mounting bracket; The output shaft of the drive motor, which is equipped with a control switch and fixed to one side of the lower housing, is connected to the chain shaft of the hinge. Electromagnetic detection probes are fixed in the probe mounting slots located on the upper and lower sides of the detection channel. Detection accessories connected to the electromagnetic detection probes are placed in the wiring slots. Continuous tubing can pass through the tubing rollers and the detection channel.

2. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 1, characterized in that, The wiring slot is located at the top of the probe mounting slot in the upper housing.

3. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 2, characterized in that, The upper and lower outer shells have semi-circular holes at the mating points of the plates on both sides of the probe mounting slot, which are matched with the radius of the continuous tubing. These semi-circular holes form a detection channel after mating.

4. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 3, characterized in that, The upper and lower outer shells have probe fixing threaded holes in the plates on both sides of the probe mounting slot. The electromagnetic detection probe is fixed in the probe mounting slot by screws and probe fixing threaded holes 4.

5. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 1, characterized in that, The roller mounting brackets are fixed to the outside of the probe mounting slots on both sides of the upper and lower outer shells respectively. The roller mounting brackets are U-shaped frames with roller shaft holes in the bracket plates on both sides. The roller shafts of the oil pipe rollers are installed in the roller shaft holes, and bearings are installed between the roller shafts and the roller shaft holes. A frame connection hole is provided in the bottom plate of the roller mounting bracket in the lower outer shell.

6. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 1, characterized in that, The spring fixing bracket consists of plates that are fixed to the outer ends of the plates on both sides of the probe mounting slot and have spring shaft holes. Spring mounting shafts can be installed in the spring shaft holes. The two ends of the spring are respectively hung on the outside of the spring mounting shafts in the spring fixing brackets of the upper and lower outer shells.

7. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 5, characterized in that, The tubing roller is an arc-shaped column with the arc surface matching the radius of the continuous tubing.

8. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 1, characterized in that, The hinge is fixedly installed between the upper and lower outer shells through screw holes and bolts in the hinge fixing plate at one end of the upper outer shell and screw holes and bolts in the lower outer shell.

9. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 1, characterized in that, The drive motor is a small geared motor equipped with a manual control switch and a foot control pedal, and is fixed to one side of the lower housing with adhesive. The output end of the drive motor is connected to the chain shaft of the hinge via a coupling.

10. The synchronous electromagnetic detection tooling for running coiled tubing downhole as described in claim 5, characterized in that, The platform is fixedly connected to the roller mounting bracket in the lower housing via platform connection holes and bolts; the platform is made of aluminum profile.

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