CN212410517U - Offshore platform riser detection device - Google Patents
Offshore platform riser detection device Download PDFInfo
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- CN212410517U CN212410517U CN202021473023.1U CN202021473023U CN212410517U CN 212410517 U CN212410517 U CN 212410517U CN 202021473023 U CN202021473023 U CN 202021473023U CN 212410517 U CN212410517 U CN 212410517U
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Abstract
The utility model discloses a riser detection device of an offshore platform, which comprises an ultrasonic guided wave detection device, a low-energy ray detection device and a riser detection fixing device; the ultrasonic guided wave detection equipment comprises an array sensor and a signal conditioning module which are connected with each other, wherein the array sensor is arranged along the outer circumference of the vertical pipe to be detected, and the signal conditioning module is connected with a data acquisition and analysis module of a computer system; the vertical pipe detection fixing equipment comprises a steel fixing framework, wherein a magnetic adsorption part, a ray source fixing part and a detector fixing part are arranged on the steel fixing framework; the low-energy ray detection equipment comprises a ray source and a detector, wherein the detector is connected with a data acquisition and analysis module of a computer system. The utility model discloses can realize accurate, the short-term test of offshore platform riser, discover riser defective position and defect form, be applicable to offshore platform riser corrosion detection and corrosion situation evaluation.
Description
Technical Field
The utility model relates to an offshore platform riser detection area, more specifically say, relate to an offshore platform riser detection device.
Background
The riser of the offshore platform has particularity, an external corrosion area of the riser passes through a splashing area, a tidal range area, a full immersion area and a sea mud area from an atmospheric area, the corrosion condition is complex and variable, and particularly the splashing area is a serious disaster area caused by corrosion outside the marine environment.
For a long time, the in-service detection and evaluation work and emergency maintenance of the marine platform in China on the stand pipe are in scattered states, and an integral effective hidden danger detection and defect evaluation means is not formed yet. China oceanic oil group company develops various detection technologies such as low-frequency guided wave, MsS, ultrasonic thickness measurement and water permeability detection and the like aiming at riser corrosion, the effect is not ideal, and especially, detection blind spots exist in inner pipes of double-layer risers, riser clamps and other parts, and the detection blind spots become hidden troubles for safe operation of submarine pipelines.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a reasonable in design science and effectual offshore platform riser detection device, remedied the not enough of marine oil riser detection technique means on the existing market. By applying the detection method, the accuracy and the reliability of riser detection can be realized, especially the detection of the positions with detection blind spots in inner pipes, riser clamps and the like of double-layer risers can be realized, and the hidden danger of safe operation of submarine pipelines is solved.
The purpose of the utility model is realized through the following technical scheme.
The utility model discloses a riser detection device of an offshore platform, which comprises an ultrasonic guided wave detection device, a low-energy ray detection device and a riser detection fixing device;
the ultrasonic guided wave detection equipment comprises an array sensor and a signal conditioning module which are mutually connected through a signal line, wherein the array sensor is arranged along the outer circumference of the vertical pipe to be detected, and the signal conditioning module is connected with a data acquisition and analysis module of a computer system through a data transmission line;
the vertical pipe detection fixing equipment comprises a steel fixing framework, wherein a magnetic adsorption part, a ray source fixing part and a detector fixing part are arranged on the steel fixing framework, the steel fixing framework is fixed on the outer side of a vertical pipe to be detected through the magnetic adsorption part, and the ray source fixing part and the detector fixing part are arranged on two opposite sides of the steel fixing framework;
the low-energy ray detection equipment comprises a ray source and a detector, wherein the ray source is fixed on a ray source fixing part, the detector is fixed on a detector fixing part, and the detector is connected with a data acquisition and analysis module of a computer system through a signal wire.
The steel fixed framework is formed by connecting two semicircular framework parts through a slip joint, and the shape of the section of the steel fixed framework is the same as that of the vertical pipe to be detected; when the device is installed, one part is put in place firstly, the magnetic adsorption part of the part is electrified to generate magnetic force, the part is adsorbed on the pipe wall of the stand pipe to be detected through the magnetic force, then the other part is put in place, the magnetic adsorption part is electrified to generate magnetic force and is fixed on the pipe wall of the stand pipe to be detected, and finally, the two parts are connected and combined together through a movable joint to form stable fixing conditions.
The method comprises the steps that ultrasonic guided wave detection equipment is installed on the upper portion of a stand pipe to be detected, guided wave detection is started after the ultrasonic guided wave detection equipment is in place, relevant instructions are transmitted to a signal conditioning module through a data acquisition and analysis module of a computer system, the signal conditioning module transmits modulated detection signals to an array sensor, the array sensor transmits the signals along the pipe wall of the stand pipe to be detected, the signals are fed back to the array sensor after defects occur, the array sensor transmits echo signals back to the signal conditioning module to be demodulated and then feeds back the signals to the data acquisition and analysis module, analysis results are output in the computer system, and the range of the defect area of the stand pipe to be detected can be.
After the low-energy ray detection equipment is installed, ray detection is started, the ray source vertically emits X rays to a defect area of the stand pipe to be detected, the X rays penetrate through the stand pipe to be detected and project to the detector, the X rays are converted into electric signals, the electric signals are transmitted to the data collection and analysis module of the computer system, and the appearance and the size of the defect of the stand pipe to be detected are obtained after analysis.
Compared with the prior art, the utility model discloses a beneficial effect that technical scheme brought is:
(1) the technical value is as follows: the detection technical level of the marine petroleum pipeline of an enterprise is improved, a feasible method is provided for detecting the marine petroleum pipeline vertical pipe, and the defect of the detection capability of the vertical pipe is made up.
(2) The economic value is as follows: as more than 20 cases of failures of the Bohai sea offshore platform riser occur, the riser detection technology is a difficult problem to solve urgently. The implementation of the technology can provide credible data support for corrosion evaluation of the riser, becomes the market promotion basis of riser corrosion monitoring and evaluation business, and creates a professional team for corrosion monitoring and detection of the riser. In addition, the technology can fill the blank of a monitoring and detecting technical means of the submarine pipeline riser and complete the short plates for submarine pipeline integrity management.
(3) The application value is as follows: the riser detection device can realize the detection of the riser of the offshore platform, fills the technical blank of the on-line detection of the corrosion of the marine riser in China, realizes the reliability and the accuracy of riser detection data, and provides reference data such as corrosion position, size, appearance shape and the like for riser corrosion evaluation. The detection device meets the requirements of personnel safety and convenient operation.
(4) The existing riser detection method uses a single detection technology, such as low-frequency guided wave, MsS, ultrasonic thickness measurement and water permeation detection, and the technologies have the problem of unreliable data. The utility model discloses a detection device who provides adopts two kinds of technical means that combine together of supersound guided wave and low energy ray, realizes riser defect location through the supersound guided wave, then utilizes low energy ray to verify and the accurate detection to the defect point position.
(5) The current riser detection method has the detection blind spot to positions such as the inner tube of double-deck riser, riser checkpost are inside, through the utility model discloses the device can realize the detection of above detection blind spot.
(6) The utility model discloses the testing result is more reliable and accurate, can measure index wall thickness attenuate discernment and be not less than 10%, and corrosion products discernment thickness is not less than 5mm, and layering material discernment density difference is not more than 500kg/m3。
(7) The utility model discloses the testing process is more high-efficient, can lock fast through supersound guided wave detecting system and corrode, realizes accurate detection. The utility model discloses can pierce through the riser flange, realize the detection of riser checkpost position, can pass through the riser flange and detect up to 5 meters.
Drawings
Fig. 1 is the utility model discloses well supersound guided wave check out test set theory of operation diagram.
Fig. 2 is a schematic view of the middle riser detection fixing device of the present invention.
Fig. 3 is a flow chart of the working process of the device for detecting the riser of the offshore platform.
Reference numerals: the system comprises a data acquisition and analysis module, a signal conditioning module, a vertical pipe to be detected, a 4-array sensor, a 5-steel fixed framework, a 6-magnetic adsorption part, a 7-ray source fixed part, a 8-detector fixed part and a 9-slipknot.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model discloses offshore platform riser detection device, including supersound guided wave check out test set, low energy ray check out test set and riser detection fixed equipment, integrated two kinds of detection technique of supersound guided wave and low energy ray, can realize accurate, the short-term test of offshore platform riser, discovery riser defective position and defect form for offshore platform riser corrosion testing and corrosion status evaluation. The ultrasonic guided wave detection equipment is used for quickly positioning a riser defect area, the low-energy ray detection equipment is used for accurately detecting the riser defect area, the riser detection fixing equipment is used for fixing the low-energy ray detection equipment on the riser of the offshore platform, can move along the radial direction and the axial direction as required, can fix the low-energy ray detection equipment at an appointed position for detection, and detects the appointed area.
As shown in figure 1, the ultrasonic guided wave detection equipment comprises an array sensor 4 and a signal conditioning module 2 which are connected with each other through signal lines, wherein the array sensor 4 is arranged along the outer circumference of a stand pipe 3 to be detected, and the signal conditioning module 2 is connected with a data acquisition and analysis module 1 of a computer system for data transmission and analysis through a data transmission line. The array sensor 4 is composed of a plurality of piezoelectric ceramic sensors, the sensors are uniformly arranged on the circumference with a certain diameter, and the array sensor 4 transmits ultrasonic guided wave detection signals by using a piezoelectric ceramic probe and receives echo signals.
As shown in fig. 2, the riser detection fixing device comprises a steel fixing framework 5, a magnetic adsorption component 6, a ray source fixing component 7 and a detector fixing component 8 are arranged on the steel fixing framework 5, the steel fixing framework 5 is fixed on the outer side of the riser 3 to be detected through the magnetic adsorption component 6, and the ray source fixing component 7 and the detector fixing component 8 are arranged on two opposite sides of the steel fixing framework 5. The steel fixing framework 5 is formed by connecting two semicircular framework parts through a slip joint 9, and the cross section of the steel fixing framework 5 is the same as that of the stand pipe 3 to be detected. When the device is installed, one part is put in place firstly, the magnetic adsorption part of the part is electrified to generate magnetic force, the part is adsorbed on the pipe wall of the stand pipe 3 to be detected through the magnetic force, then the other part is put in place, the magnetic adsorption part 6 is electrified to generate magnetic force and is fixed on the pipe wall of the stand pipe 3 to be detected, and finally, the movable joint 9 is connected to combine the two parts together to form stable fixing conditions. In addition, riser detection fixed equipment can also adopt the anti-falling cable to use as the accessory, plays the fixed action.
The low-energy ray detection equipment comprises a ray source and a detector, wherein the ray source is fixed on a ray source fixing part 7, the detector is fixed on a detector fixing part 8, and the detector is connected with a data acquisition and analysis module 1 of a computer system through a signal wire.
As shown in fig. 3, an ultrasonic guided wave detection device is installed on the upper part of the riser 3 to be detected (generally on the bottom deck of the platform), and after the ultrasonic guided wave detection device is in place, guided wave detection is started, the data acquisition and analysis module 1 of the computer system transmits the related instruction to the signal conditioning module 2, the signal conditioning module 2 transmits the modulated detection signal to the array sensor 4, the array sensor 4 transmits the signal along the pipe wall of the stand pipe 3 to be detected, the signal is fed back to the array sensor 4 after the defect occurs, the array sensor 4 transmits the echo signal back to the signal conditioning module 2 for demodulation, and the data is fed back to the data acquisition and analysis module, and the analysis result is output in a computer system, so that the part with the wall thickness reduced by more than 10% can be rapidly judged, the range of a defect area of the vertical pipe is judged, rapid positioning is realized, and an installation position is provided for low-energy ray detection equipment.
After the low-energy ray detection equipment is installed, ray detection is started, the energy is controlled within the safety range of a human body, the ray source vertically emits X rays to the defect area of the stand pipe to be detected, the X rays penetrate through the stand pipe to be detected and are projected onto a signal receiving board of a detector to be converted into electric signals, the electric signals are transmitted to a data collecting and analyzing module of a computer system, the appearance and the size of the defect of the stand pipe to be detected can be obtained after analysis, if corrosion exists, the thickness can be identified to be not less than 5mm, and the density difference of layered material identification is not more than 500kg3Corrosion products of (a).
Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above specific functions and operations, and the above specific embodiments are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the protection scope of the present invention.
Claims (4)
1. The device for detecting the riser of the offshore platform is characterized by comprising ultrasonic guided wave detection equipment, low-energy ray detection equipment and riser detection fixing equipment;
the ultrasonic guided wave detection equipment comprises an array sensor (4) and a signal conditioning module (2) which are connected with each other through signal lines, wherein the array sensor (4) is arranged along the outer circumference of a vertical pipe (3) to be detected, and the signal conditioning module (2) is connected with a data acquisition and analysis module (1) of a computer system through a data transmission line;
the vertical pipe detection fixing equipment comprises a steel fixing framework (5), wherein a magnetic adsorption part (6), a ray source fixing part (7) and a detector fixing part (8) are arranged on the steel fixing framework (5), the steel fixing framework (5) is fixed on the outer side of a vertical pipe (3) to be detected through the magnetic adsorption part (6), and the ray source fixing part (7) and the detector fixing part (8) are arranged on two opposite sides of the steel fixing framework (5);
the low-energy ray detection equipment comprises a ray source and a detector, wherein the ray source is fixed on a ray source fixing part (7), the detector is fixed on a detector fixing part (8), and the detector is connected with a data acquisition and analysis module (1) of a computer system through a signal line.
2. The offshore platform riser detection device of claim 1, wherein the steel fixed framework (5) is formed by connecting two semicircular framework parts through a slip joint, and the cross section of the steel fixed framework (5) has the same shape as that of the riser to be detected; when the device is installed, one part is put in place firstly, the magnetic adsorption part (6) of the part is electrified to generate magnetic force, the part is adsorbed on the pipe wall of the stand pipe (3) to be detected through the magnetic force, then the other part is put in place, the magnetic adsorption part (6) is electrified to generate magnetic force and is fixed on the pipe wall of the stand pipe (3) to be detected, and finally, the movable joint (9) is connected to combine the two parts together to form stable fixing conditions.
3. The offshore platform riser detection device according to claim 1, wherein an ultrasonic guided wave detection device is installed on the upper portion of the riser (3) to be detected, guided wave detection is started after the ultrasonic guided wave detection device is in place, a related instruction is transmitted to the signal conditioning module (2) through the data acquisition and analysis module (1) of the computer system, the signal conditioning module (2) transmits a modulated detection signal to the array sensor (4), the array sensor (4) transmits the signal along the pipe wall of the riser (3) to be detected, the signal is fed back to the array sensor (4) after a defect occurs, the echo signal is transmitted back to the signal conditioning module by the array sensor (4) to be demodulated and then fed back to the data acquisition and analysis module (1), and an analysis result is output in the computer system, so that the range of the defect region of the riser to be detected can be determined.
4. The offshore platform riser detection device of claim 1, wherein after the low energy radiation detection device is installed, radiation detection is started, the radiation source vertically emits X-rays to the region of the riser defect to be detected, the X-rays penetrate through the riser to be detected and project to the detector, the X-rays are converted into electrical signals and transmitted to the data collection and analysis module of the computer system, and the shape and size of the riser defect to be detected are obtained after analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021473023.1U CN212410517U (en) | 2020-07-23 | 2020-07-23 | Offshore platform riser detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021473023.1U CN212410517U (en) | 2020-07-23 | 2020-07-23 | Offshore platform riser detection device |
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| Publication Number | Publication Date |
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| CN212410517U true CN212410517U (en) | 2021-01-26 |
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| CN202021473023.1U Active CN212410517U (en) | 2020-07-23 | 2020-07-23 | Offshore platform riser detection device |
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