CN212743984U - Laser scanning three-dimensional imaging system for detecting deformation of underground pipe column - Google Patents
Laser scanning three-dimensional imaging system for detecting deformation of underground pipe column Download PDFInfo
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- CN212743984U CN212743984U CN202020648641.9U CN202020648641U CN212743984U CN 212743984 U CN212743984 U CN 212743984U CN 202020648641 U CN202020648641 U CN 202020648641U CN 212743984 U CN212743984 U CN 212743984U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 29
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 18
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
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Abstract
The utility model discloses a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, including tubular column, camera, 360 horizontal laser instrument, remote control dolly and the cyclic annular laser projection line that awaits measuring, be provided with in the tubular column that awaits measuring the remote control dolly, the front portion of remote control dolly upper surface is fixed with the camera, the rear portion of accuse dolly upper surface is fixed with 360 horizontal laser instrument, the axis of camera with the axis coincidence of tubular column that awaits measuring. The utility model discloses a beneficial effect for adapt to the detection of different pipe diameters, detect that the precision is higher and detect convenient high-efficient.
Description
Technical Field
The utility model relates to a tubular column warp detection technical field in the pit, in particular to laser scanning three-dimensional imaging system for detecting tubular column warp in the pit.
Background
The oil, gas well casing, oil pipe and oil gas conveying pipeline are affected by corrosion, stratum external stress and operation in the pipeline during service, so that the diameter expansion, diameter reduction or deformation may occur, and the production safety is affected. Traditional methods employ mechanical multi-arm caliper to detect changes in pipe diameter. Disadvantages of multi-arm caliper: during measurement, the detection arm needs to be opened to contact the pipe wall for measurement, and the risk of resistance of the instrument is increased when the pipe wall is deformed or damaged. The radial resolution depends on the number of the detection arms, the greater the number, the higher the resolution, but due to the limitation of the structural size, the fewer detection arms can be installed when the pipe diameter is smaller, and the more detection arms can be installed when the pipe diameter is larger, but the radial resolution is not high in general. And the cost and the probability of mechanical failure increase when the feeler arm is large. Due to the limitation of the opening angle of the detection arm, the dynamic range of the change of the pipe diameter is small, and different instruments are needed for different pipe diameters.
Therefore, it is necessary to design a laser scanning three-dimensional imaging system which is suitable for detection of different pipe diameters, has high detection precision and is convenient and efficient to detect and used for detecting deformation of a downhole pipe column.
SUMMERY OF THE UTILITY MODEL
The utility model provides a laser scanning three-dimensional imaging system for detecting tubular column warp in pit can realize the technological effect that proposes in the above-mentioned background art.
The utility model provides a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, including tubular column, camera, 360 horizontal laser instrument, remote control dolly and the cyclic annular laser projection line that awaits measuring, be provided with in the tubular column that awaits measuring the remote control dolly, the front portion of remote control dolly upper surface is fixed with the camera, the rear portion of accuse dolly upper surface is fixed with 360 horizontal laser instrument, the axis of camera with the axis coincidence of the tubular column that awaits measuring.
Preferably, the camera is a wireless network camera.
Preferably, the 360 ° horizontal laser device is disposed at the front end of the camera, the 360 ° horizontal laser device projects an annular laser projection line on the inner wall of the pipe column to be measured, and a plane where the annular laser projection line is located is perpendicular to an axis of the pipe column to be measured.
Preferably, the distance between the camera and the 360-degree horizontal laser is enough to observe a ring-shaped laser projection line with a moderate size and integrity in the picture of the camera.
Preferably, the remote control trolley is matched with a wireless remote control.
Preferably, the camera is in signal connection with the video processing module through a wireless transmission module, the video processing module is used for processing the acquired annular laser projection line information into a three-dimensional scanning model, and the wireless transmission module is electrically connected with a power supply.
The utility model has the advantages that:
1. this a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, through setting up camera and 360 horizontal laser instrument cooperations, when the camera with 360 horizontal laser instrument when the uniform motion in the tubular column that awaits measuring, wherein when the position of camera record video and 360 horizontal laser instrument in the tubular column that awaits measuring, shoot and obtain the laser three-dimensional scanning model of the tubular column that awaits measuring through handling the video after accomplishing, whether the inner wall of tubular column that awaits measuring has taken place the deformation through the shape judgement of three-dimensional scanning model, make can be convenient and efficient to the inner wall of the tubular column that awaits measuring take place the deformation and detect.
2. This a laser scanning three-dimensional imaging system for detecting tubular column warp in pit compares traditional multi-arm caliper measuring mechanical contact and measures, has reduced the risk that the instrument meets the hindrance card, has improved detection efficiency.
3. Compared with the laser scanning three-dimensional imaging system with multiple arms, the laser scanning three-dimensional imaging system for detecting the deformation of the underground pipe column depends on the number of the detection arms, the radial resolution of the system depends on the resolution of a video, the radial resolution which is several times of the radial resolution of the multiple arms is realized by adopting a high-definition camera, and the detection accuracy is improved.
4. This a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, multi-arm well diameter receives the restriction of opening angle, and pipe diameter adaptability is relatively poor, and this system can be better adapt to the detection requirement of different pipe diameters through adjusting 360 horizontal laser instrument and the distance of camera.
Drawings
Fig. 1 is the utility model provides a pair of a geometric model schematic diagram of a laser scanning three-dimensional imaging system for detecting tubular column warp in pit.
Fig. 2 is the utility model provides a pair of a geometric model schematic diagram two for detecting the laser scanning three-dimensional imaging system of tubular column deformation in pit.
Fig. 3 is the utility model provides a pair of a camera imaging schematic diagram for detecting the laser scanning three-dimensional imaging system of tubular column warp in the pit.
Fig. 4 is a schematic connection diagram of a laser scanning three-dimensional imaging system for detecting deformation of a downhole tubular column.
Description of reference numerals: 1-a pipe column to be tested; 2-a camera; a 3-360 ° horizontal laser; 4-remote control of the trolley; 5-ring laser projection line.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1-4, the embodiment of the utility model provides a pair of a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, including tubular column 1, camera 2, 360 horizontal laser instrument 3, remote control dolly 4 and cyclic annular laser projection line 5 that await measuring, be provided with in the tubular column 1 that awaits measuring remote control dolly 4, the front portion of 4 upper surfaces of remote control dolly is fixed with camera 2, the rear portion of 4 upper surfaces of control dolly is fixed with 360 horizontal laser instrument 3, the axis of camera 2 with the axis coincidence of tubular column 1 that awaits measuring.
Preferably, the camera 2 is a wireless network camera.
Preferably, the 360 ° horizontal laser 3 is arranged at the front end of the camera 2, the 360 ° horizontal laser 3 projects an annular laser projection line 5 on the inner wall of the tubular column 1 to be measured, and the plane where the annular laser projection line 5 is located is perpendicular to the axis of the tubular column 1 to be measured.
Preferably, the distance between the camera 2 and the 360 ° horizontal laser 3 is such that a moderately sized and complete ring-shaped laser projection line 5 can be observed in the image of the camera 2.
Preferably, the remote control cart 4 is fitted with a wireless remote control, wherein the remote control cart 4 is provided with a crawler (drive wheels) and a centralizer (keeping the device axis centered).
Preferably, the camera 2 is in signal connection with a video processing module through a wireless transmission module, the video processing module is configured to process the acquired information of the annular laser projection line 5 into a three-dimensional scanning model, and the wireless transmission module is electrically connected with a power supply.
Three-dimensional modeling principle:
1. obtaining the profile of a laser scanning line by an image processing method;
2. estimating a contour line center point O (xo, yo);
3. uniformly sampling the profile of the scanning line in the circumferential direction, recording the plane coordinates (x, y) of a sampling point S, and recording the position sampling value of the 360-degree horizontal laser 3 in the tubular column 1 to be tested as z;
4. calculating the difference dr between the distance d between the contour line sampling point S (x, y) and the central point O (xo, yo) and the pipe diameter nominal value r, namely d-r;
5. continuously detecting to obtain a detection data matrix (x, y, z, dr);
6. and performing three-dimensional surface drawing by using the data matrix to obtain a three-dimensional surface model of the tubular column 1 to be measured.
The technical effects are as follows: this a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, through setting up camera 2 and 360 horizontal laser 3 cooperations, when camera 2 and 360 horizontal laser 3 when the uniform motion in tubular column 1 that awaits measuring, wherein when camera 2 record video and 360 horizontal laser 3 position in tubular column 1 that awaits measuring, shoot and obtain the laser three-dimensional scanning model of tubular column 1 that awaits measuring through handling the video after accomplishing, whether the inner wall of tubular column 1 that awaits measuring has taken place to warp through the shape of three-dimensional scanning model, make can be convenient and efficient to the inner wall of tubular column 1 that awaits measuring take place to warp and detect. This a laser scanning three-dimensional imaging system for detecting tubular column warp in pit compares traditional multi-arm caliper measuring mechanical contact and measures, has reduced the risk that the instrument meets the hindrance card, has improved detection efficiency. Compared with the laser scanning three-dimensional imaging system with multiple arms, the laser scanning three-dimensional imaging system for detecting the deformation of the underground tubular column depends on the number of the detection arms, the radial resolution of the system depends on the resolution of a video, the radial resolution which is several times of the radial resolution of the multiple arms is realized by adopting the high-definition camera 2, and the detection accuracy is improved. This a laser scanning three-dimensional imaging system for detecting tubular column warp in pit, multi-arm well diameter receives the restriction of opening angle, and pipe diameter adaptability is relatively poor, and this system is through adjusting 360. The distance between the horizontal laser 3 and the camera 2 can better adapt to the detection requirements of different pipe diameters.
The above disclosure is only for the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.
Claims (6)
1. A laser scanning three-dimensional imaging system for detecting deformation of a downhole tubular column is characterized in that: including tubular column (1) that awaits measuring, camera (2), 360 horizontal laser instrument (3), remote control dolly (4) and cyclic annular laser projection line (5), be provided with in tubular column (1) that awaits measuring remote control dolly (4), the front portion of remote control dolly (4) upper surface is fixed with camera (2), the rear portion of remote control dolly (4) upper surface is fixed with 360 horizontal laser instrument (3), the axis of camera (2) with the axis coincidence of tubular column (1) that awaits measuring.
2. A laser scanning three-dimensional imaging system for detecting deformations of a tubular string downhole according to claim 1, characterized in that the camera (2) is a wireless network camera.
3. The laser scanning three-dimensional imaging system for detecting the deformation of the tubular column in the well is characterized in that the 360-degree horizontal laser (3) is arranged at the front end of the camera (2), the 360-degree horizontal laser (3) projects an annular laser projection line (5) on the inner wall of the tubular column to be detected (1), and the plane of the annular laser projection line (5) is perpendicular to the axis of the tubular column to be detected (1).
4. A laser scanning three-dimensional imaging system for detecting deformations of a tubular string downhole according to claim 3, characterized in that the distance of the camera (2) from the 360 ° horizontal laser (3) is such that a moderately sized and complete ring-shaped laser projection line (5) can be observed in the view of the camera (2).
5. The laser scanning three-dimensional imaging system for detecting the deformation of the tubular column in the well as the method as claimed in claim 1, characterized in that the remote control trolley (4) is matched with a wireless remote controller.
6. The laser scanning three-dimensional imaging system for detecting the deformation of the downhole tubular column as claimed in claim 1, wherein the camera (2) is in signal connection with a video processing module through a wireless transmission module, the video processing module is used for processing the acquired information of the annular laser projection line (5) into a three-dimensional scanning model, and the wireless transmission module is electrically connected with a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020648641.9U CN212743984U (en) | 2020-04-24 | 2020-04-24 | Laser scanning three-dimensional imaging system for detecting deformation of underground pipe column |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020648641.9U CN212743984U (en) | 2020-04-24 | 2020-04-24 | Laser scanning three-dimensional imaging system for detecting deformation of underground pipe column |
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| CN212743984U true CN212743984U (en) | 2021-03-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669053A (en) * | 2021-07-05 | 2021-11-19 | 中国矿业大学 | Well wall scanning imaging system |
| US20230068332A1 (en) * | 2021-08-31 | 2023-03-02 | Saudi Arabian Oil Company | Lead-free pinscreen imprint device, system, and method for retrieving at least one imprint of a topmost surface of a fish located in a wellbore |
-
2020
- 2020-04-24 CN CN202020648641.9U patent/CN212743984U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669053A (en) * | 2021-07-05 | 2021-11-19 | 中国矿业大学 | Well wall scanning imaging system |
| US20230068332A1 (en) * | 2021-08-31 | 2023-03-02 | Saudi Arabian Oil Company | Lead-free pinscreen imprint device, system, and method for retrieving at least one imprint of a topmost surface of a fish located in a wellbore |
| US11939861B2 (en) * | 2021-08-31 | 2024-03-26 | Saudi Arabian Oil Company | Lead-free pinscreen imprint device, system, and method for retrieving at least one imprint of a topmost surface of a fish located in a wellbore |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Laser Scanning 3D Imaging System for Detecting Deformation of Downhole Pipe Strings Effective date of registration: 20230328 Granted publication date: 20210319 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Zhengyuan Jingxiang Electronic Technology Co.,Ltd. Registration number: Y2023610000222 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210319 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Zhengyuan Jingxiang Electronic Technology Co.,Ltd. Registration number: Y2023610000222 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A laser scanning 3D imaging system for detecting deformation of underground pipe columns Granted publication date: 20210319 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Zhengyuan Jingxiang Electronic Technology Co.,Ltd. Registration number: Y2024980006884 |