CN103885412A - Real-time safety monitoring system for sea drilling platform - Google Patents
Real-time safety monitoring system for sea drilling platform Download PDFInfo
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- CN103885412A CN103885412A CN201410099982.4A CN201410099982A CN103885412A CN 103885412 A CN103885412 A CN 103885412A CN 201410099982 A CN201410099982 A CN 201410099982A CN 103885412 A CN103885412 A CN 103885412A
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Abstract
The invention discloses a real-time safety monitoring system for a sea drilling platform. The real-time safety monitoring system comprises a data acquisition module, a signal amplifier, a signal processor, a memorizer, a signal converter and output equipment, wherein the data acquisition module, the signal amplifier, the signal processor, the memorizer, the signal converter and the output equipment are sequentially connected through data lines. The data acquisition module comprises a pressure sensor and a displacement sensor, wherein the pressure sensor and the displacement sensor are installed under a pile shoe of the sea drilling platform. Pressure signals and displacement signals sensed by the pressure sensor and the displacement sensor are sequentially processed through the signal amplifier, the signal processor, the memorizer and the signal converter and then output through the output equipment. According to the real-time safety monitoring system for the sea drilling platform, the sensors are adopted for carrying out direct measurement and transmission, the defect of response delay of a level gauge is overcome, and the pressure and the displacement actually borne by the ocean platform and a foundation can be monitored and displayed fast and accurately.
Description
Technical field
The invention belongs to drilling platform safety monitoring technology field, relate to a kind of offshore drilling platform ground real-time security monitoring system.
Background technology
In recent years, along with continuous exploration and exploitation to offshore petroleum resources, self-lifting type marine drilling platform is widely used in the exploitation of offshore oil.The common feature of this type of offshore engineering structure is to rely on spud leg and shoe to be supported in seafloor foundation, and its degree of depth unit that enters mud is less than the yardstick of shoe.Often can there is ground shakiness, phenomenon is fallen inequality, platform inclination, washes away and empties in spud leg, has influence on the structural safety of ocean platform.In September, 2010, China Petrochemical Industry's " No. three, Shengli Operation " self-elevating platform (SEP), in the time of the operation of shallow sea, Bohai Sea Gulf, bow stake sliding pile causes hull knockdown, and because the reason of ground is toppled completely, the direct economic loss causing reaches 200,000,000 yuan.
At present conventional level meter is monitored the levelness of drilling platform, judge with this whether drilling platform keeps safety, but level meter exist show lag behind, result is inaccurate, forecast postpones shortcoming, be often while by the time giving the alarm, there is serious accident.
Summary of the invention
The invention provides a kind of pore pressure that can detect in real time foundation of sea floor, show the real-time displacement of spud leg, platform main hull, the offshore drilling platform ground real-time security monitoring system that carries out reliability early warning for the safety of platform.
Foregoing invention object of the present invention is realized by following technological means, a kind of offshore drilling platform ground real-time security monitoring system, it comprises data acquisition module, signal amplifier, signal processor, storer, signal converter and output device, and wherein data acquisition module comprises pressure transducer and the displacement transducer under the shoe that is arranged on offshore drilling platform; Pressure transducer is connected with signal amplifier by data line with displacement transducer, sends the pressure signal sensing and displacement signal to signal amplifier; Signal amplifier is connected by data line with signal processor, and signal amplifier will send signal processor to after the pressure signal of receiving and displacement signal amplification; Signal processor is connected by data line with storer, and signal processor is sent to storer by treated signal and stores; Storer is connected with signal converter, and the signal that signal converter is sent storer converts the form that is applicable to output to; Signal converter is connected with output device by Wireless Telecom Equipment and/or data line, by output device, pressure and displacement signal through above-mentioned a series of processing is exported.
Pressure transducer in data acquisition unit can adopt one or more combinations in capacitance pressure transducer,, variable reluctance pressure transducer, Huo Ershi pressure transducer, optical fiber type pressure transducer, resonance type pressure sensor.
Displacement transducer in data acquisition unit can adopt wherein one or more combinations of potentiometric displacement transducer, resistance-strain type displacement transducer, capacitive displacement transducer, inductive displacement transducer, Mageneto-sensitive type displacement transducer, optical displacement sensor, ultrasonic displacement sensor.
Above-mentioned potentiometric transducer is WW POT formula sensor and/or non-wire-wound potentiometer formula sensor.Wherein WW POT formula sensor has advantages of simple in structurely and easy to use, is adopting sensors with auxiliary electrode were effectively reducing costs to the not high position of accuracy requirement; And the resolution of non-wire-wound potentiometer formula sensor is high, wear-resistant, the life-span long and easily calibration, be applicable to need high-resolution position.
Resistance-strain type displacement transducer is to connect as flexible member with spring and semi-girder, paste four foil gauges and form full-bridge circuit at rectangular interfaces semi-girder root tow sides, extension spring one end is connected with measuring junction, measuring junction is arranged in the boots stake of offshore drilling platform, in the time that being subjected to displacement, boots stake drive measuring junction to be subjected to displacement, drive spring and semi-girder root to produce bending, the displacement of the bending strain producing and measuring junction is linear.The value of bending strain can be obtained to the numerical value of displacement through calculating.
Inductive displacement transducer is self-induction type displacement transducer and/or electric vortex type displacement sensor.Two telefaults that communicate are tied by differential mode, utilize the mutual inductance effect of coil mechanical shift to be converted to the variation of induction electromotive force.Its sensitivity and measuring accuracy are all higher.Preferably apply in the present invention this displacement transducer.
Mageneto-sensitive type displacement transducer is one or more combinations in magnetostriction torsional wave displacement transducer, Hall displacement transducer and magnetic grating displacement transducer.Wherein the installation of magnetostriction torsional wave displacement transducer is very simple, convenient, can bear the environment of high temperature, high pressure and high vibration.Under rugged surroundings, can adopt this displacement transducer when operation.
Described optical displacement sensor is one or more combinations in laser displacement sensor, grating displacement transducer and optical fiber type displacement transducer.Fibre Optical Sensor belongs to non-contact measurement, has eliminated Mechanical Contact to measuring the impact causing, and has that the life-span is long, reliability is high, measuring accuracy advantages of higher, but cost is higher.
Optical fibre displacement sensor can be element type and/or reflection-type optical fiber displacement transducer.
Output device is display.The display that suggestion is used is in the present invention liquid crystal display device, because liquid crystal display small volume, demonstration is abundant, and the colour that can realize degree of precision shows, configures suitable display card, transducing signal graphically can also be shown.
Usefulness of the present invention is: due to by pressure and displacement as the object detecting, and adopt sensor directly measure and transmit, therefore can monitor fast and accurately, show the actual pressure bearing and the displacement situation of ocean platform, ground, and when exceeding threshold values, pressure and shift value carry out alarm, rapid reaction when ensureing the safety and stability of platform and breaking down.
Brief description of the drawings
Fig. 1 is structure principle chart of the present invention
Embodiment
Offshore drilling platform ground real-time security monitoring system as shown in Figure 1, it comprises data acquisition module 1, signal amplifier 2, signal processor 3, storer 4, signal converter 5 and colour liquid crystal display device 6, and wherein data acquisition module 1 comprises pressure transducer 11 and the displacement transducer 12 under the shoe that is arranged on offshore drilling platform.Pressure transducer 11 is connected with signal amplifier 2 by data line with displacement transducer 12, signal amplifier 2 is connected by data line with signal processor 3, signal processor 3 is connected by data line with storer 4, storer 4 is connected with signal converter 5, signal converter 5 data lines are connected with colour liquid crystal display device 6, by colour liquid crystal display device 6, pressure and displacement signal through above-mentioned a series of processing are presented on screen.
When work, pressure transducer 11 and displacement transducer 12 send the pressure signal sensing and displacement signal to signal amplifier 2; Signal amplifier 2 will send signal processor 3 to after the pressure signal of receiving and displacement signal amplification, signal processor 3 is sent to storer by treated signal and stores, and the signal that signal converter 5 is sent storer 4 converts the form that is applicable to output to.
In this specific embodiment, pressure transducer 11 adopts the combination setting of capacitance pressure transducer,, variable reluctance pressure transducer and Huo Ershi pressure transducer, and displacement transducer 12 adopts magnetostriction torsional wave displacement transducer.
In order to obtain better display effect, can give liquid crystal display configure host, Labview software is installed in main frame, to carrying out modeling and graphical treatment through signal converter 5 signal after treatment, result is presented in liquid crystal display 6 with the form of solid figure, also can warning horn be installed on main frame, in the time that the numerical value recording exceeds threshold values, sound the alarm simultaneously.This is all further optimization process, non-essential features of the present invention.Goal of the invention of the present invention can directly realize by the connection of above-mentioned hardware, and configuration software just provides use impression and the more intuitive display effect more optimized to user.
Certainly the present invention is not limited in and adopts above-mentioned four kinds of sensors, can adopt as required the combination of multiple sensors type or multiple sensors, and the classification of sensor has had narration in invention description part, no longer repeats to enumerate.Adopt the data acquisition module of the sensor all within protection scope of the present invention.
Above embodiment is for understanding the present invention's, it is not limitation of the present invention, about the those of ordinary skill in field, on the basis of technical scheme described in claim, can also make multiple variation or modification, for example, between each ingredient, also can adopt the transmission mode of transmission of wireless signals or wireless and wired combination; Described liquid crystal display also can be used CRT monitor; or projector replaces; storer can adopt solid-state memory, also can adopt SRAM dynamic storage or FLASH storer etc., and these variations or modification should be understood to still belong to protection scope of the present invention.
Claims (9)
1. an offshore drilling platform ground real-time security monitoring system, it is characterized in that: described safety monitoring system comprises data acquisition module, signal amplifier, signal processor, storer, signal converter and output device, wherein data acquisition module comprises pressure transducer and the displacement transducer under the shoe that is arranged on offshore drilling platform; Pressure transducer is connected with signal amplifier by data line with displacement transducer, sends the pressure signal sensing and displacement signal to signal amplifier; Signal amplifier is connected by data line with signal processor, and signal amplifier will send signal processor to after the pressure signal of receiving and displacement signal amplification; Signal processor is connected by data line with storer, and signal processor is sent to storer by treated signal and stores; Storer is connected with signal converter, and the signal that signal converter is sent storer converts the form that is applicable to output to; Signal converter is connected with output device by Wireless Telecom Equipment and/or data line, by output device, pressure and displacement signal through above-mentioned a series of processing is exported.
2. offshore drilling platform ground real-time security monitoring system according to claim 1, is characterized in that: described pressure transducer is one or more combinations in capacitance pressure transducer,, variable reluctance pressure transducer, Huo Ershi pressure transducer, optical fiber type pressure transducer, resonance type pressure sensor.
3. offshore drilling platform ground real-time security monitoring system according to claim 1, is characterized in that: described displacement transducer is wherein one or more combinations of potentiometric displacement transducer, resistance-strain type displacement transducer, capacitive displacement transducer, inductive displacement transducer, Mageneto-sensitive type displacement transducer, optical displacement sensor, ultrasonic displacement sensor.
4. offshore drilling platform ground real-time security monitoring system according to claim 3, is characterized in that: described potentiometric transducer is WW POT formula sensor and/or non-wire-wound potentiometer formula sensor.
5. offshore drilling platform ground real-time security monitoring system according to claim 3, is characterized in that: described inductive displacement transducer is self-induction type displacement transducer and/or electric vortex type displacement sensor.
6. offshore drilling platform ground real-time security monitoring system according to claim 3, is characterized in that: described Mageneto-sensitive type displacement transducer is one or more combinations in magnetostriction torsional wave displacement transducer, Hall displacement transducer and magnetic grating displacement transducer.
7. offshore drilling platform ground real-time security monitoring system according to claim 3, is characterized in that: described optical displacement sensor is one or more combinations in laser displacement sensor, grating displacement transducer and optical fiber type displacement transducer.
8. according to the offshore drilling platform ground real-time security monitoring system described in claim, it is characterized in that: described optical fibre displacement sensor is element type and/or reflection-type optical fiber displacement transducer.
9. according to the offshore drilling platform ground real-time security monitoring system described in claim 1-any one, it is characterized in that: described output device is display.
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| CN201410099982.4A CN103885412A (en) | 2014-03-18 | 2014-03-18 | Real-time safety monitoring system for sea drilling platform |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865967A (en) * | 2015-06-01 | 2015-08-26 | 中国船舶重工集团公司第七0四研究所 | Offshore platform compensation integrated redundancy control |
| CN104912049A (en) * | 2015-06-02 | 2015-09-16 | 浙江海洋学院 | Anti-dumping self-elevating ocean platform |
| CN105002877A (en) * | 2015-06-30 | 2015-10-28 | 浙江海洋学院 | Overturn preventing system for self-elevating ocean platform |
| CN105967066A (en) * | 2016-07-13 | 2016-09-28 | 广东省自动化研究所 | Early-warning controlling system for offshore platform crane |
| CN106338275A (en) * | 2016-08-27 | 2017-01-18 | 中国石油大学(华东) | Intelligent marine platform system |
| CN108801506A (en) * | 2018-01-15 | 2018-11-13 | 中交第三航务工程局有限公司 | Semi-submersible type bottom platform stress safety prewarning monitoring system and method |
| CN112097735A (en) * | 2020-09-30 | 2020-12-18 | 华侨大学 | Measuring device for neutral point position of model pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865967A (en) * | 2015-06-01 | 2015-08-26 | 中国船舶重工集团公司第七0四研究所 | Offshore platform compensation integrated redundancy control |
| CN104912049A (en) * | 2015-06-02 | 2015-09-16 | 浙江海洋学院 | Anti-dumping self-elevating ocean platform |
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| CN106338275A (en) * | 2016-08-27 | 2017-01-18 | 中国石油大学(华东) | Intelligent marine platform system |
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| CN108801506A (en) * | 2018-01-15 | 2018-11-13 | 中交第三航务工程局有限公司 | Semi-submersible type bottom platform stress safety prewarning monitoring system and method |
| CN112097735A (en) * | 2020-09-30 | 2020-12-18 | 华侨大学 | Measuring device for neutral point position of model pile |
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Application publication date: 20140625 |