CN201292834Y - Riser monitoring system based on underwater sound - Google Patents
Riser monitoring system based on underwater sound Download PDFInfo
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- CN201292834Y CN201292834Y CNU2008200910539U CN200820091053U CN201292834Y CN 201292834 Y CN201292834 Y CN 201292834Y CN U2008200910539 U CNU2008200910539 U CN U2008200910539U CN 200820091053 U CN200820091053 U CN 200820091053U CN 201292834 Y CN201292834 Y CN 201292834Y
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- 238000012545 processing Methods 0.000 claims abstract description 17
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Abstract
The utility model provides a marine riser monitoring system based on underwater sound, which comprises a hardware part and a software part, wherein the hardware part mainly comprises a monitoring unit, a signal transmitting system and a signal processing system which are connected with each other; the software part mainly comprises a control module arranged in the hardware part, an above-water signal acquisition module and an analytic system module; the hardware part transmits monitoring signals of the marine riser in real time by the underwater sound, and the software part further processes the obtained stress displacement of the marine riser. The utility model has the advantage of searching the marine riser monitoring system which can transmit monitored data in real time and has high reliability, convenient installation and relatively lower cost on the basis of the research results of the prior marine riser monitoring system, thereby ensuring the security of the marine riser during the operation period.
Description
(1) technical field
The utility model relates to the dynamic response monitoring system that a kind of marine drilling platform marine riser is used, and is specifically related to a kind of marine riser monitoring system based on the underwater sound.
(2) background technology
Marine riser is a kind of pipeline that is used for isolating drilling equipment and seawater, and it extends to drill ship from subsea wellhead installations always, is close-connected by riser joints between the tube and tube.In the ocean deepwater drilling process, the operator finishes the drilling well task by marine riser.Because progressively to the deep-sea development, in drilling process, the fatigue that the vortex-induced vibration of marine riser etc. brings is more and more outstanding for ocean engineering.And owing to the complexity of marine environment and increasing of the uncertain factor in the analysis, these phenomenons can not be separated in theory reliably.Therefore, be necessary to carry out the marine riser monitoring, to obtain the true response of marine riser.The marine riser monitoring system mainly contains two kinds at present:
1. autonomous monitoring
Autonomous monitoring, this monitoring mode is to arrange independently monitoring means along the marine riser depth direction, and independently work in each unit, and the data that record (acceleration signal etc.) are stored in separately the memory.Containing independently in each monitoring means, battery comprises sensor (accelerometer etc.), circuit board, memory in addition in order to energy to be provided.The shell of each unit is the cylinder type metal closed container.The layout of monitoring means can be to carry out before marine riser is installed, and also can arrange by underwater robot (ROV) on already installed marine riser.The data that record equally can be fetched the unit when marine riser is regained, also can regain with ROV.The advantage of autonomous monitoring is that the structure construction of monitoring means is simple relatively, and cost is relatively low, and is convenient to reclaim and maintenance.
2. monitoring in real time
Monitoring in real time, the main distinction of this monitoring method and autonomous monitoring is that data that sensor is recorded are by real-time the passing on the Platform Deck of cable, owing to can control simultaneously each monitoring means by cable, therefore the data synchronization that records is better.In addition, owing to can provide electric energy for monitoring means, with regard to the circumscribed problem of the low capacity that solved battery, can carry out the collection of mass data like this by cable.Monitoring in real time, can take appropriate measures and alleviate under at dangerous situation for the operation of marine riser provides reference.Certainly, monitoring in real time also has its weak point, and that is exactly the difficulty of bringing when arranging cable.Because expense that the layout of cable need be added and more expensive equipment, the very big complexity of bringing therefore for the construction of marine riser.The difficulty of arranging cable on mounted marine riser is bigger, and this also is one of shortcoming of monitoring in real time.
(3) summary of the invention
The purpose of this utility model is to provide a kind of can adapt to sea, deep-sea drilling environment, realizes the monitored data real-time Transmission, the easy for installation and cheap marine riser monitoring system based on the underwater sound.
The purpose of this utility model is achieved in that this monitoring system mainly is made up of hardware and software two parts, wherein hardware components mainly comprises interconnective monitoring means, signal transmission system and signal processing system, software section mainly comprises control module, above-water signal acquisition module and the analytical system module that is arranged in the hardware components, hardware components carries out the real-time Transmission of marine riser monitor signal by the underwater sound, and software section is further handled the stress displacement that obtains marine riser.
The utility model also has some technical characterictics like this:
1, described monitoring means comprise monitoring means R4, R5 that the monitoring means K1 of the upper and lower that is arranged in the keel joint and K2, monitoring vortex-induced vibration are arranged and R6, directly measure near the strain marine riser low side stress joint monitoring means R1-R3, be used for marine riser position monitor monitoring means L3 and L2 and be installed in the monitoring means L1 at low side stress joint place;
2, described monitoring means comprises the hydrophone that is arranged on interconnective circuit board, battery, sensor, transducer and monitoring aqueous medium in the metallic seal shell, and the transducer signal of telecommunication connects hydrophone and signal transmission system;
3, described signal transmission system connects signal processing system, and signal processing system comprises signals collecting amplification instrument, filtration module, the analog-to-digital conversion module that connects successively and goes here and there translation interface, DSP modem and display unit;
4, contain two groups of sealing rings on the described metallic seal shell.
The utility model provides a kind of deep-sea marine riser monitoring system based on the underwater sound signal transmission.This monitoring system mainly is made up of hardware and software two parts, and wherein hardware components mainly comprises monitoring means, signal transmission system and signal processing system.Monitoring means is mainly by the metallic seal shell, circuit board, battery, sensor, and composition such as transducer.The transmission of its signal is to use transducer and hydrophone, carries out the signal transmission by this medium of seawater.Signal processing system mainly refers to special electronic computer, and signals collecting is amplified instrument etc.Software section mainly comprises the programming of control circuit inside chip, above-water signals collecting and analytical system.The content of marine riser monitoring comprises: the fatigue failure monitoring that vortex-induced vibration (vortex-induced vibration) is induced, bottom stress joint angle monitor, marine riser position monitor and mud line are monitored with cased fatigue failure.Meaning of the present utility model is under existing marine riser Research of Monitor System achievement, seek and a kind ofly can real-time Transmission record data, reliability height, easy for installation, marine riser monitoring system that expense is cheap relatively, thereby ensure the safety of marine riser between operational period.
The utility model is designed a kind of monitoring system based on the underwater sound according to the particularity of deep sea drilling work operations environment.In this monitoring mode, except various kinds of sensors is arranged, outside the circuit board, also comprise a main equipment transducer in each monitoring means.The hydrophone of transducer on being installed in platform formed a cover signal receiving and transmitting system.This monitoring means is lean on self battery powered, will reclaim the replacing battery through a life cycle.Like this, the initial data that records with various kinds of sensors can pass to platform surface by underwater sound transmission system, carries out real-time monitoring.Advantage based on the monitoring system of the underwater sound is, with respect to independently being many that his signal synchronism of monitoring will be good, with respect to real-time monitoring he install and recovery aspect convenient, the layout of the cable that saves.This system carries out the transmission of marine riser monitored data by the underwater sound, can transfer the signal that sensor records on demand at any time by control command.This system adopts powered battery, has saved the layout of cable, so can save a lot of set-up times and reduce the complexity of installing, and reducing construction is installation cost.The main contents of marine riser monitoring comprise: the fatigue failure monitoring that vortex-induced vibration (vortex-induced vibration) is induced, bottom stress joint angle monitor, marine riser position monitor and mud line are monitored with cased fatigue failure.
Vortex-induced vibration (vortex-induced vibration) is induced fatigue monitoring: at present in the tired design of marine riser vortex-induced vibration a lot of uncertain factors is arranged, as the uncertainty of the fatigue properties of weld, uncertain and some various hypothesis of using in vortex-induced vibration software of current speed or the like.Thus, very conservative of the tired design of the vortex-induced vibration of marine riser.The strain meter that utilization difference on marine riser is arranged is measured the strain value at each point place, the fatigue failure that just can calculate marine riser through certain processing again by the change procedure of strain.The desirable vortex-induced vibration monitoring system of one cover can together reduce the conservative degree in the tired design of marine riser with the test of material welding, and design is rationalized more.
Bottom stress joint angle monitor: in order to alleviate the big moment of flexure in marine riser bottom usefulness always, adopt the softer stress joint of relative marine riser material usually, stress joint has certain pliability, and good counter-bending damage capability is arranged.Usually the cross section attribute of stress joint is along the length gradual change, and the bending rigidity (EI) with the marine riser that is connected is identical in the top.Because moment of flexure increases gradually along depth direction, EI also increases gradually along this length direction, reaches maximum value to low side.Because it is bigger that stress joint departs from the angle of vertical direction, inner drilling rod contacts with the inwall of marine riser easily.When drillng operation, drilling rod may especially severe to the wearing and tearing of marine riser, therefore will should monitor to guarantee the safety of marine riser with the angle of joint the bottom.The direct inclined angle monitoring system of one cover can be measured the angle of bottom stress joint, uses a pair of tilt meter to realize monitoring usually.
The position monitor of marine riser:, be necessary to be provided with the marine riser navigation system of a cover, in order to determine the position of marine riser end in off-state or installation process based on underwater acoustic technology in order to improve the safety of drillng operation.In the marine riser installation process, the marine riser position data that provides by this system can effectively prevent to bump with marine riser on every side, also can guide marine riser to dock faster with the target well head simultaneously, the raising efficiency of operation.Because the marine riser positioning monitoring system can be realized the installation of bigger change in flow scope marine riser, thereby the opereating specification of marine riser is enlarged, can more in the complex environment marine riser be installed.
The cased fatigue failure monitoring of mud line: studies show that very big flexural deformation will take place the sleeve pipe place below mud line.For avoiding serious destruction, be necessary to carry out mud line and monitor with cased fatigue failure, monitoring method arranges on sleeve pipe that normally foil gauge measures the strain in its course of work, obtains its fatigue damage by further processing.In addition, the strain data that records can also provide feedback information for the numerical simulation of mud in the design process, helps later design work.
Characteristics of the present utility model have:
1, draws together hardware and software two parts based on the marine riser monitoring system of the underwater sound, it is characterized in that its use transducer and hydrophone carry out the real-time Transmission of marine riser monitor signal by the underwater sound.The signal (as acceleration, strain and inclination angle etc.) that is recorded by sensor can be crossed and be transferred to as required on the surface platform, obtains the stress displacement of marine riser by the further processing of computer software.
2, it is characterized in that the marine riser monitoring means comprises monitoring means mainly by the metallic seal shell, circuit board, battery, sensor, and composition such as transducer.Required can energy being provided by self battery in the course of work, operating frequency is controlled by control circuit default in the detecting unit.
3, contain two groups of sealing rings on its metallic seal shell, its installation and recovery are to use underwater robot (ROV) to finish.The main contents of marine riser monitoring comprise: the fatigue failure monitoring that vortex-induced vibration (vortex-induced vibration) is induced, bottom stress joint angle monitor, marine riser position monitor and mud line are monitored with cased fatigue failure.
(4) description of drawings
Fig. 1 is the marine riser monitoring system complete layout of the utility model specific embodiment based on the underwater sound;
Fig. 2 is the signals collecting of each monitoring means of the specific embodiment and to water surface transfer process figure:
Fig. 3 is that specific embodiment water surface signal receives and process chart.
(5) specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
In conjunction with the accompanying drawings, present embodiment mainly is made up of hardware and software two parts, wherein hardware components mainly comprises interconnective monitoring means, signal transmission system and signal processing system, software section mainly comprises control module, above-water signal acquisition module and the analytical system module that is arranged in the hardware components, hardware components carries out the real-time Transmission of marine riser monitor signal by the underwater sound, and software section is further handled the stress displacement that obtains marine riser.Monitoring means comprises the hydrophone that is arranged on interconnective circuit board, battery, sensor, transducer and monitoring aqueous medium in the metallic seal shell, and the transducer signal of telecommunication connects hydrophone and signal transmission system; Signal transmission system connects signal processing system, and signal processing system comprises signals collecting amplification instrument, filtration module, the analog-to-digital conversion module that connects successively and goes here and there translation interface, DSP modem and display unit.Present embodiment uses transducer and hydrophone 6 to carry out the real-time Transmission of marine riser monitor signal by the underwater sound.The signal (as acceleration, strain and inclination angle etc.) that is recorded by sensor can be crossed and be transferred to as required on the surface platform, obtains the stress displacement of marine riser by the further processing of computer software.
In conjunction with Fig. 1: monitoring means comprise the K1 of the upper and lower that is arranged in the keel joint and R4, R5 that K2 unit, monitoring vortex-induced vibration are arranged and R6 unit, directly measure near the strain marine riser low side stress joint the R1-R3 unit, be used for marine riser position monitor L3 and L2 unit and be installed in the L1 unit at low side stress joint place.
1) the K unit comprises the K1 and the K2 monitoring means of the upper and lower that is arranged in the keel joint, can obtain the inclination angle value of keel joint by the differential seat angle of getting tilt meter in two unit.Underwater sound signal transceiver received signal is also sent dormancy and underwater sound modem in the monitoring means is given in the order that wakes up, it links to each other with signal processing system on the platform by two independent cables with the K unit, and the transmission with signal of providing of electric energy is provided cable.The K unit also is the important component part of vortex-induced vibration monitoring.
2) R4, R5 and R6 are entirely the monitoring means of monitoring vortex-induced vibration and arranging, they are disposed near the span centre of marine riser, and definite position will be optimized by analysis.Because they are to each other apart from very big, only are not enough to determine strain along the distribution situation of marine riser in this scope, so do not have strain meter in these unit by three strain meters.The another one reason is that in the top such as the keel joint of marine riser, marine riser is subjected to the influence of platform motion easily and bigger motion and distortion take place; Because the reducing of tension force, marine riser is bigger distortion easily also in the bottom of marine riser, will arrange at these two positions that therefore strain meter directly monitors its strain (fatigue just).These three monitoring means will can obtain the overall vortex-induced vibration response of marine riser with other monitoring means.
3) data that record by R1-R3 by the modem among the R3 real-time pass to Platform Deck 5.This just provides the degree more than needed of underwater sound modem, if one is out of order, other two can fill, and can not cause losing of data.Selecting the R3 unit is that the reason of formant is that it is more shallow apart from the water surface 4, transfer of data very fast relatively, and the consumption of the energy content of battery is less relatively, and has reduced the number of signal transmission frequency of utilization.
4) function of R1 ~ R3 unit is directly to measure near the strain of marine riser low side stress joint.The low side stress joint is the important area of vortex-induced vibration fatigue damage owing to be in marine riser tension force minimum position.When the marine riser off-state when depositing or installing (storm from), R1 ~ R3 unit can provide the curvature of marine riser bottom, thereby effectively prevents the collision with other pipelines.
5) the L1 unit is installed in low side stress joint place, and L2 is installed in the junction of marine riser and well head.The angle that L1 and two monitoring means of L2 record is got the inclination angle that difference just can obtain low side stress joint place.Data are passed on the surface platform by underwater sound modem by L1, simultaneously also the data of the strain meter 1 of 3 times measurement sleeve pipes 2 of mud line are passed to the water surface.When marine riser was in off-state, L3 and L2 were used for the position monitor of marine riser.
6) owing to close proximity, the strain meter of arranging along sleeve pipe can record the distribution situation of strain along sleeve pipe.According to the relation of strain stress, therefore can record the fatigue damage of sleeve pipe.Use three groups of strain meters in the present embodiment, form by 4 strain meters for every group, along 90 ° of layouts in circumferential interval of marine riser.Each organizes strain meter under mud line about 30 feet places, and each organizes 15 inches of spacings.
In conjunction with Fig. 2:
Underwater sensor/modem/transducer unit and sensor/acoustic modem are the piths in system's design.It is used to collect vibration information and is sent to the water surface, comprises three dimension acceleration sensor, DSP modem and transducer.
Sensor can be collected small vibration signal and be converted to the signal of telecommunication.By analogue-to-digital converters, can obtain the data signal that DPS can handle.The DSP while is as the modem of controller, data storage and the transducer of sensor.Transducer can send acoustic signal and receive instruction to water surface unit or from it.Be different from sensor, transducer can be converted to vibration the signal of telecommunication can be converted to vibration with the signal of telecommunication again.After instruction sends from the water surface, wake DSP up by attended circuit.
Whole unit works in two states: operation and standby.When being in holding state DSP and sensor with dormancy to reduce power consumption.By attended circuit, the dual mode waken system is arranged: because unusual ocean current and the instruction of sending by the water surface.So can be called " operation as required ", this is with effective conserve energy, the most of the time has only attended circuit work with monitoring signal simultaneously.
In conjunction with Fig. 3:
Reception of water surface signal and process chart are similar to the signals collecting flow chart of underwater monitoring unit.Because this unit is positioned at the water surface, supply with problem so need not to consider energy.Can carry out Fourier transform to data by using a computer, just can obtain the spectrogram of each control point.The function of water surface unit is to receive survey data from unit received signal and demodulation under water from underwater sensor.
Claims (5)
1, a kind of marine riser monitoring system based on the underwater sound, it comprises hardware and software two parts composition, it is characterized in that hardware components mainly comprises interconnective monitoring means, signal transmission system and signal processing system, software section mainly comprises control module, above-water signal acquisition module and the analytical system module that is arranged in the hardware components, hardware components carries out the real-time Transmission of marine riser monitor signal by the underwater sound, and software section is further handled the stress displacement that obtains marine riser.
2, the marine riser monitoring system based on the underwater sound according to claim 1, it is characterized in that monitoring means R4, R5 that described monitoring means comprises that the monitoring means K1 of the upper and lower that is arranged in the keel joint and K2, monitoring vortex-induced vibration are arranged and R6, directly measure near the strain marine riser low side stress joint monitoring means R1-R3, be used for marine riser position monitor monitoring means L3 and L2 and be installed in the monitoring means L1 at low side stress joint place.
3, the marine riser monitoring system based on the underwater sound according to claim 2, it is characterized in that described monitoring means comprises the hydrophone that is arranged on interconnective circuit board, battery, sensor, transducer and monitoring aqueous medium in the metallic seal shell, the transducer signal of telecommunication connects hydrophone and signal transmission system.
4, the marine riser monitoring system based on the underwater sound according to claim 3, it is characterized in that described signal transmission system connects signal processing system, signal processing system comprises signals collecting amplification instrument, filtration module, the analog-to-digital conversion module that connects successively and goes here and there translation interface, DSP modem and display unit.
5, the marine riser monitoring system based on the underwater sound according to claim 4 is characterized in that containing on the described metallic seal shell two groups of sealing rings.
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| CNU2008200910539U CN201292834Y (en) | 2008-10-08 | 2008-10-08 | Riser monitoring system based on underwater sound |
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| CNU2008200910539U CN201292834Y (en) | 2008-10-08 | 2008-10-08 | Riser monitoring system based on underwater sound |
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Cited By (15)
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| CN102162769A (en) * | 2011-01-05 | 2011-08-24 | 中国海洋石油总公司 | Fatigue multi-point wireless monitoring system of marine riser |
| CN103201592A (en) * | 2010-11-05 | 2013-07-10 | Nkt电缆集团公司 | An integrity monitoring system and a method of monitoring integrity of a stationary structure |
| CN104268400A (en) * | 2014-09-25 | 2015-01-07 | 中国海洋石油总公司 | Rapid calculating method of marine riser operation window |
| CN104364467A (en) * | 2012-01-23 | 2015-02-18 | 越洋塞科外汇合营有限公司 | High definition drilling rate of penetration for marine drilling |
| CN104613927A (en) * | 2015-02-15 | 2015-05-13 | 中国海洋石油总公司 | Method for monitoring rotating angle of deep marine riser |
| CN105587308A (en) * | 2016-03-02 | 2016-05-18 | 中国石油天然气集团公司 | Deep-water drilling water-secluding pipe kinetic parameter measurement system and method |
| CN105888567A (en) * | 2016-05-23 | 2016-08-24 | 西南石油大学 | Intelligent control device for preventing vortex-induced vibration of marine riser |
| CN106574487A (en) * | 2014-05-30 | 2017-04-19 | 通用电气公司 | Marine riser management system including subsea acoustic monitoring platform and an associated method |
| CN106641656A (en) * | 2016-11-17 | 2017-05-10 | 北京航天控制仪器研究所 | Optical fiber hydrophone dropping and recovering mechanism |
| CN106677721A (en) * | 2017-01-19 | 2017-05-17 | 燕山大学 | Automatic anti-typhoon perpendicularity adjusting device for deepwater drilling riser |
| CN106968610A (en) * | 2017-04-26 | 2017-07-21 | 中国石油大学(华东) | A kind of Offshore Drilling Riser that itself can be monitored is single |
| CN107246912A (en) * | 2017-06-22 | 2017-10-13 | 西北工业大学 | A kind of marine riser vortex-induced vibration monitoring method based on accidental resonance |
| CN108915609A (en) * | 2018-07-20 | 2018-11-30 | 中国石油大学(华东) | A kind of intelligence Offshore Drilling Riser is single |
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| CN103201592A (en) * | 2010-11-05 | 2013-07-10 | Nkt电缆集团公司 | An integrity monitoring system and a method of monitoring integrity of a stationary structure |
| CN103201592B (en) * | 2010-11-05 | 2017-03-15 | Nkt电缆集团公司 | The method of the integrity of integrity monitoring systems and monitoring static structures |
| CN102162769A (en) * | 2011-01-05 | 2011-08-24 | 中国海洋石油总公司 | Fatigue multi-point wireless monitoring system of marine riser |
| CN104364467A (en) * | 2012-01-23 | 2015-02-18 | 越洋塞科外汇合营有限公司 | High definition drilling rate of penetration for marine drilling |
| US10168253B2 (en) | 2014-05-30 | 2019-01-01 | General Electric Company | Marine riser management system including subsea acoustic monitoring platform and an associated method |
| CN106574487B (en) * | 2014-05-30 | 2019-10-01 | 通用电气公司 | Marine riser management system and correlating method including undersea acoustic monitoring platform |
| CN106574487A (en) * | 2014-05-30 | 2017-04-19 | 通用电气公司 | Marine riser management system including subsea acoustic monitoring platform and an associated method |
| CN104268400A (en) * | 2014-09-25 | 2015-01-07 | 中国海洋石油总公司 | Rapid calculating method of marine riser operation window |
| CN104613927A (en) * | 2015-02-15 | 2015-05-13 | 中国海洋石油总公司 | Method for monitoring rotating angle of deep marine riser |
| CN105587308A (en) * | 2016-03-02 | 2016-05-18 | 中国石油天然气集团公司 | Deep-water drilling water-secluding pipe kinetic parameter measurement system and method |
| CN105587308B (en) * | 2016-03-02 | 2018-09-04 | 中国石油天然气集团公司 | Deep Water Drilling Riser kinetic parameter measuring system and method |
| CN105888567A (en) * | 2016-05-23 | 2016-08-24 | 西南石油大学 | Intelligent control device for preventing vortex-induced vibration of marine riser |
| CN106641656A (en) * | 2016-11-17 | 2017-05-10 | 北京航天控制仪器研究所 | Optical fiber hydrophone dropping and recovering mechanism |
| CN106677721A (en) * | 2017-01-19 | 2017-05-17 | 燕山大学 | Automatic anti-typhoon perpendicularity adjusting device for deepwater drilling riser |
| CN106968610A (en) * | 2017-04-26 | 2017-07-21 | 中国石油大学(华东) | A kind of Offshore Drilling Riser that itself can be monitored is single |
| CN107246912A (en) * | 2017-06-22 | 2017-10-13 | 西北工业大学 | A kind of marine riser vortex-induced vibration monitoring method based on accidental resonance |
| CN108915609A (en) * | 2018-07-20 | 2018-11-30 | 中国石油大学(华东) | A kind of intelligence Offshore Drilling Riser is single |
| CN108915609B (en) * | 2018-07-20 | 2020-11-10 | 中国石油大学(华东) | Intelligent marine drilling riser single joint |
| CN109458172A (en) * | 2018-11-01 | 2019-03-12 | 中国石油大学(华东) | Marine riser gas cut monitoring instrument and monitoring method |
| CN109458172B (en) * | 2018-11-01 | 2022-10-18 | 中国石油大学(华东) | Tool and method for monitoring gas invasion of marine riser |
| CN111577516A (en) * | 2020-05-15 | 2020-08-25 | 中国海洋石油集团有限公司 | Sea water pipe vibration monitoring system of ocean temperature difference energy power generation platform |
| CN111577516B (en) * | 2020-05-15 | 2022-05-06 | 中国海洋石油集团有限公司 | Sea water pipe vibration monitoring system of ocean temperature difference energy power generation platform |
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