CN101894454B - Oil derrick stress measurement and data acquisition system based on wireless sensor network - Google Patents
Oil derrick stress measurement and data acquisition system based on wireless sensor network Download PDFInfo
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- CN101894454B CN101894454B CN2010102088841A CN201010208884A CN101894454B CN 101894454 B CN101894454 B CN 101894454B CN 2010102088841 A CN2010102088841 A CN 2010102088841A CN 201010208884 A CN201010208884 A CN 201010208884A CN 101894454 B CN101894454 B CN 101894454B
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Abstract
The invention relates to an oil derrick stress measurement and data acquisition system based on a wireless sensor network, which comprises a vibrating string extensometer-detected marine oil derrick stress-strain subsystem, a marine oil derrick stress-strain field data transmission subsystem based on the wireless sensor network and a marine oil derrick capacity assessment subsystem based on a configuration technology and a Matlab computation program. In the system, an industrial computer is connected with a wireless sensor network gateway through an industrial concentrator, marine oil derrick stress-strain field data is converted into digital signals by wireless sensor network nodes, and then, the industrial computer reads data at each node in the wireless sensor network by using the Modbus TCP/IP communication protocol and an address distinguishing technology so as to realize the acquisition and transmission of the oil drilling derrick stress-strain field data. The system has the advantages of low cost and high stability, and is applicable to a derrick capacity detection and evaluation system in ocean severe environment.
Description
Technical field
The present invention relates to a kind of oil derrick stress measurement and data acquisition system (DAS), especially a kind of when being used for marine drilling derrick static test derrick and rod member stress measurement and derrick capacity measure and data acquisition system (DAS).
Background technology
Along with the sea oil drilling and production engineering to deep water, ultra deep-water developments, load-bearing capacity is big, good stability, tower-type headframe that the dark ability of brill is strong have comparative advantage in contemporary offshore oil drilling.In order to adapt to the situation that the sea climate environment is abominable, condition of work is complicated and changeable; Offshore oil drilling platform adopts is convenient to the modular design that marine lifting rapidly connects, and equipment such as offshore platform, derrick, rig transport the oil recovery place to after the floating packing technique assembling of large ocean platform is adopted at the harbour.Damage defect in various degree appears or exists in derrick inevitably in dismounting, transportation, build process; In the long service process derrick directly bear make a trip, load and marine environment load that running casing and other operation produce; The deterioration of position physical characteristics such as be connected between the derrick geometry of tired and shock load initiation, derrick rod member, rod member; And the corrosion effect that causes of environment; Cause being lower than former design load in labour oil derrick load-bearing capacity for a long time, greatly reduce the serviceable life of derrick geometry and security, the stability of oil producing operation." digitizing well factory technology " mainly biases toward in the drilling process on-line monitoring and the analysis of equipment information collection in well pressure, oil-gas component, the automatic control module and geologic structure aspect at present; Safe bearing capacity to the offshore oil drilling derrick is not monitored; Derrick load long to age like this or that safe class descends is not monitored, and becomes the major accident hidden danger of offshore drilling platforms safety in production.Offshore oil drilling platform provides height and the space that makes a trip and deposit the tubing string operation; It is a kind of tower mast type steel structure; Its condition of work is abominable; Operating mode is complicated and changeable, and the security of work and reliability are most important for drilling operation, is very necessary so it is carried out intensity, rigidity, stability, dynamic Analysis.
The marine drilling derrick is the important component part of marine oil equipment, and derrick operation on the ocean has very big difference with the land operation, so the security performance of marine rig derrick is higher than the requirement of land derrick.Domestic man-rate to the ocean derrick still is in the stage of fumbling at present; Mainly detect and assessment method with reference to the derrick capacity of stipulating in SY/T 6326-2008 " oil-well rig and workover rig derrick, base load-bearing capacity detect assessment method " and SY/T 6326-1997 " oil-well rig detects assessment method with the derrick capacity " standard, wherein in-situ stresses foil gauge test method(s) is the main method of current evaluation derrick actual bearer ability.Confirm that according to the theoretical analysis result of derrick member carrying and the principle of temperature compensation resistance strain gage is arranged and group bridge scheme; Some points big at stress or reflection stress distribution characteristics are arranged measuring point, and same strainometer grid are long also to be selected according to the structural stress distribution gradient.Be difficult to use theory of mechanics accurately to find the solution the stress distribution law of the derrick geometry rod member after the damage, at present adopt empirical methods to confirm in-situ stresses measuring point arrangement more, the position of derrick stress test point and the certain science of distributed number scheme shortage.When actual measurement, the stickup of strainometer is manual operations fully, so be difficult to guarantee that true paster orientation and predetermined paster orientation fit like a glove, the resistance strain gage bonding quality is poor, the bad variation that all can cause the strainometer resistance of insulation, causes electric bridge uneven.Because derrick height is generally at 40-50 rice, it is long and make the electric capacity between conductor resistance value and lead be incorporated in the strain gauge bridge that resistance strain gage connects lead, and the contact resistance of binding post can be introduced in equally in the electric bridge and cause the test error of indication.In addition; Because the ocean derrick can't carry out on-the-spot bearing test in the maintenance period; Must in derrick oil producing operation process, the security performance to derrick carry out Comprehensive Assessment, a large amount of connection leads has increased the difficulty and the danger coefficient of operating personnel's work high above the ground for the installation of derrick stress point pick-up unit.This shows that traditional foil gauge is measured the derrick strain method and not too is fit to offshore oil drilling platform derrick load test and analysis, is existing inconvenience and operating difficulties aspect measuring technology and the equipment.In addition, existing offshore oil drilling stress test system adopts manual types to accomplish in test figure storage, analysis, calculating etc. more, and examining report can not form comprehensive report fast and after this derrick historical data contrast only to present test findings.Thereby; Be badly in need of making up a cover at present and be applicable to that on-the-spot operation fast, cost offshore oil drilling derrick capacity low, good stability detect evaluating system; To guarantee the validity and the reliability of derrick capacity assessment, promote the application of China at the building technology and the novel drilling technology of offshore drill workover module.
Summary of the invention
The present invention will solve that sensor is difficult to install in the gram prior art, is subject to disturb; Field wires is too much; The data acquiring and recording manual operations is complicated; The technical matters of test macro and aspects such as data processing can not efficiently be connected, and provide a kind of measuring accuracy high, simple and convenient, anti-extreme natural environment, stress measurement of marine oil derrick and data acquisition system (DAS) based on wireless sensor network that stability is high be installed.The instrument mounting hardness was with dangerous when its purpose was to reduce the test of offshore oil drilling platform static stress; Improve corrosion resistivity, moisture-resistant degree, the anti-electromagnetic interference capability of derrick stress test system; Test the safe bearing capacity of marine oil derrick stress and then assessment derrick quickly and accurately; For the maintenance of oil derrick or degradation use comprehensive report and policy paper are provided; Thereby improved the safety in production ability of marine oil borer system greatly, eliminated offshore oil drilling job safety hidden danger, ensured numerous workers' personal safety and national wealth safety.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of oil derrick stress measurement and data acquisition system (DAS) based on wireless sensor network; Comprise that vibrating string extensometer detects marine oil derrick ess-strain subsystem; Marine oil derrick ess-strain field data transmission subsystem based on wireless sensor network; Marine oil derrick capacity evaluation subsystem based on configuration technology and Matlab calculation procedure; Be characterized in: the industrial control computer in described three sub-systems is connected with wireless sensor network gateway through industrial hub; After marine oil derrick ess-strain field data converts digital signal into through wireless sensor network node; Adopt ModbusTCP/IP communications protocol and address to distinguish the data that technology reads each node in the wireless sensor network by industrial control computer, realize collection and transmission petroleum well drilling derrick ess-strain field data.
Described vibrating string extensometer detects marine oil derrick ess-strain subsystem and is made up of 12V lithium battery, vibrating string type sensor, frequency signal converter; Working temperature is that-20～+ 80 ℃, two end blocks of vibrating string type sensor of sensitivity 1 μ ε are fixed by bolts to derrick or derrick member structure surface, the frequency signal of vibrating string extensometer is converted into the current signal of 4-20mA by the frequency signal converter.
Described marine oil derrick ess-strain field data transmission subsystem based on wireless sensor network comprises 3.6V direct current lithium battery, wireless sensor network node, wireless sensor network gateway, 24V direct supply, industrial hub and industrial control computer; The 24V direct supply is that wireless sensor network gateway provides driving power; 3.6V the direct current lithium battery is a wireless sensor network node power supply is provided; Wireless sensor network node and 3.6V direct current lithium battery adopt and are bolted to the centimeters apart from vibrating string extensometer 10-20; Vibrating string type sensor, frequency signal converter, wireless sensor network node are connected through the band Shielded Twisted Pair; Each wireless sensor network node connects one to four vibrating string extensometer most; Gateway in the wireless sensor network and node are operated in the international communication standard frequency range of 2.4GHz, and gateway address is set to 01～F1, node address from 02-0F～F2-FF.
Described marine oil derrick capacity evaluation subsystem based on configuration technology and Matlab calculation procedure is included in the data acquisition control server that industrial control computer in the WebAccess configuration software is set to monitor node; User application by Visual Basic 6.0 establishments adopts the OLE technology to obtain the control handle of Microsoft Access; Be used to change attribute, the method for ADO object hierarchy object set member Recordset; Call the marine oil derrick ess-strain field data that is stored in the Access database; And with matrix format with measured data input the oil derrick and the Matlab calculation procedure of rod member strength check based on the establishment of MatrixVB control, in the Matlab plotter program, export the derrick stress envelope after calculating the derrick safety load.
The invention has the beneficial effects as follows: adopt wireless sensor network collection and transmission offshore oil drilling frame stress-strain tester data; The working strength and the work high above the ground difficulty of field personnel's operation have been significantly reduced; Adopt digital quantity to transmit data between the gateway of wireless sensor network and the node, reduced electromagnetic interference (EMI) effectively and improved the stability and the accuracy of signal transmission.This system is primarily aimed at rig-site utilization, and the IP67 degree of protection that the node of wireless sensor network has adopted suitable outdoor mounted to use is to adapt to on-the-spot abominable marine environment.The present invention adopts vibrating string type sensor monitor well shelf structure stress data, has avoided electric resistance strain film method complicated operation, difficult installation, has been subject to the shortcoming of environmental disturbances.Test figure is gathered, is stored and analyzes by user application and accomplish, and has significantly reduced the workload of testing crew execute-in-place and calculating, has reduced human intervention and human error in the derrick capacity evaluation process simultaneously.By WebAccess configuration software and industrial wireless sensor network collection, transmission offshore oil drilling frame stress field data; The difficulty and the workload of user application programming have been significantly reduced; And the accuracy and the efficient of data transmission have been improved; Data all are stored in the Access database, have both avoided because the test figure misregistration that human error causes, very convenient again inquiry and and contrast historical data.Advanced aspect, system has supported main fluid architecture, agreement and hardware platform, can support the collection and the storage of the data of magnanimity.Aspect open, adopted the on-the-spot distributed design of easy expansion, the WebAccess configuration software can provide relevant data-interface, for the fused data parameter provides the good data interface.The present invention has done bigger improvement at aspects such as stress strain gauge, test figure collection, transmission, storage and processing, has formed a cover cost is low, stability is high, be suitable for execute-in-place marine oil derrick capacity safety detection assessment technology and test.
Description of drawings
The marine oil derrick ess-strain that Fig. 1 is based on vibrating string extensometer detects schematic diagram;
Fig. 2 is based on the marine oil derrick ess-strain field data transmission principle figure of wireless sensor network;
Fig. 3 is based on the marine oil derrick capacity rate the process figure of configuration technology and Matlab calculation procedure.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is the marine oil derrick ess-strain detection schematic diagram based on vibrating string extensometer, and marine oil derrick ess-strain detection system is made up of 12V lithium battery 4, vibrating string type sensor 1, frequency signal converter 3.Vibrating string type sensor 1 adopts and is bolted to derrick or derrick member structure surface, and frequency signal converter 3 and vibrating string type sensor 1 be by being with Shielded Twisted Pair 2 to be connected, and 12V lithium battery 4 provides supply voltage for frequency signal converter 3.Vibrating string type sensor 1 converts the offshore oil drilling derrick into frequency signal because the ess-strain that load change causes changes; Convert frequency signal the normalized current signal of 4-20mA into through frequency signal converter 3, so that host computer is gathered the field data of derrick static load test.
Fig. 2 is the marine oil derrick ess-strain field data transmission principle figure based on wireless sensor network; This system is made up of offshore oil drilling derrick stress test wireless sensor network and distributed data acquisition acquisition system; The derrick situ part is made up of 12V lithium battery 4, vibrating string type sensor 1, frequency signal converter 3,3.6V direct current lithium battery 7, wireless sensor network node 6; Wherein adopt band Shielded Twisted Pair 2 to be connected between vibrating string type sensor 1, frequency signal converter 3 and the wireless sensor network node 6; 12V lithium battery 4 is respectively frequency signal converter 3 with 3.6V lithium battery 7 and with wireless sensor network node 6 driving power is provided, and the node in the consolidated network and its gateway master address and communication frequency are provided with identical.Distributed data acquisition acquisition hardware system is calculated 10 mechanisms with Industry Control and is become by wireless sensor network gateway, 24V direct supply 8, industrial hub 9, the prefabricated netting twine 5 of Phoenix electrical industry Ethernet; Adopt Modbus TCP/IP communications protocol and address to distinguish the data that technology reads each node in the wireless sensor network by the WebAccess configuration software; And be written in the BwPData.mdb background data base of having set up 11, thereby collection, transmission and the storage of completion oil derrick stress strain field data.
Fig. 3 is the marine oil derrick capacity rate the process figure based on configuration technology and Matlab calculation procedure; User application adopts the OLE technology to change attribute, the method for ADO object hierarchy object set member Recordset; Call the marine oil derrick ess-strain field data that is stored in the BwPData.mdb background data base; And with matrix format with measured data input based on the oil derrick of MatrixVB control establishment and the Matlab calculation procedure of rod member strength check; Adopt nonlinear method to calculate the density of load and the stable stress of each layer respectively according to each test point stress value; Find out wherein maximum stress value, and then solve derrick capacity, output derrick stress envelope in the Matlab plotter program; When generating the derrick capacity report automatically, this experimental test value and analysis result are stored in the derrick historical data base, thus the analysis and the processing of completion derrick static test data.
As stated; Oil derrick stress on-line measurement based on wireless sensor network provided by the invention, data acquisition and derrick load man-rate system; Both can overcome the shortcoming that the electric resistance strain film method Installation and Debugging are complicated, field wires is too much, be subject to environmental disturbances, can when guaranteeing measuring accuracy and stability, survey strain method far below fiber grating by cost again.Through adopting vibrating string type sensor test derrick stress, by wireless sensor network collection and transmission test data, greatly reduce site operation personnel's working strength and difficulty, shortened test period, improved the stability of work efficiency and test.Adopt WebAccess configuration software and VB software programming user application, in whole test process, test data acquisition, storage and analysis, not only alleviated field experiment personnel's working strength but also reduced the possibility of human error by computer control.The present invention follows the cardinal rule of " practicality, opening, reliability, advance, extensibility, ease for maintenance " when design; All hardware adopts all that precision is high, stability is strong, the equipment of anti-adverse environment; User application software is compatible and portable good; Analog reslt shows that this system has certain advance and reliability, has formed one and has overlapped derrick capacity detection and the evaluating system that becomes to be suitable for ocean severe environment.
Claims (4)
1. oil derrick stress measurement and data acquisition system (DAS) based on a wireless sensor network; Comprise that vibrating string extensometer detects marine oil derrick ess-strain subsystem; Marine oil derrick ess-strain field data transmission subsystem based on wireless sensor network; Marine oil derrick capacity evaluation subsystem based on configuration technology and Matlab calculation procedure; It is characterized in that: the industrial control computer in described three sub-systems is connected with wireless sensor network gateway through industrial hub; After marine oil derrick ess-strain field data converts digital signal into through wireless sensor network node; Adopt ModbusTCP/IP communications protocol and address to distinguish the data that technology reads each node in the wireless sensor network by industrial control computer, realize collection and transmission petroleum well drilling derrick ess-strain field data.
2. oil derrick stress measurement and data acquisition system (DAS) based on wireless sensor network according to claim 1; It is characterized in that: described vibrating string extensometer detects marine oil derrick ess-strain subsystem and is made up of 12V lithium battery, vibrating string type sensor, frequency signal converter; Working temperature is that-20～+ 80 ℃, two end blocks of vibrating string type sensor of sensitivity 1 μ ε are fixed by bolts to derrick or derrick member structure surface, the frequency signal of vibrating string extensometer is converted into the current signal of 4-20mA by the frequency signal converter.
3. oil derrick stress measurement and data acquisition system (DAS) based on wireless sensor network according to claim 1; It is characterized in that: described marine oil derrick ess-strain field data transmission subsystem based on wireless sensor network comprises 3.6V direct current lithium battery, wireless sensor network node, wireless sensor network gateway, 24V direct supply, industrial hub and industrial control computer; The 24V direct supply is that wireless sensor network gateway provides driving power; 3.6V the direct current lithium battery is a wireless sensor network node power supply is provided; Wireless sensor network node and 3.6V direct current lithium battery adopt and are bolted to apart from vibrating string extensometer 10～20 centimeters; Vibrating string type sensor, frequency signal converter, wireless sensor network node are connected through the band Shielded Twisted Pair; Each wireless sensor network node connects one to four vibrating string extensometer; Gateway in the wireless sensor network and node are operated in the international communication standard frequency range of 2.4GHz, and gateway address is set to 01～F1, node address from 02-0F～F2-FF.
4. oil derrick stress measurement and data acquisition system (DAS) based on wireless sensor network according to claim 1; It is characterized in that: described marine oil derrick capacity evaluation subsystem based on configuration technology and Matlab calculation procedure is included in the data acquisition control server that industrial control computer in the WebAccess configuration software is set to monitor node; User application by Visual Basic 6.0 establishments adopts the OLE technology to obtain the control handle of Microsoft Access; Be used to change attribute, the method for ADO object hierarchy object set member Recordset; Call the marine oil derrick ess-strain field data that is stored in the Access database; And with matrix format with measured data input the oil derrick and the Matlab calculation procedure of rod member strength check based on the establishment of MatrixVB control, in the Matlab plotter program, export the derrick stress envelope after calculating the derrick safety load.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103217236A (en) * | 2012-01-20 | 2013-07-24 | 中国石油化工股份有限公司 | Self-elevating ocean platform spud leg stress real-time detection device |
| CN102539024A (en) * | 2012-02-14 | 2012-07-04 | 浙江鼎丰实业有限公司 | System for automatically monitoring stress of interpolation H-shaped steel by soil mixing wall (SMW) construction method |
| CN105136437A (en) * | 2015-08-05 | 2015-12-09 | 中国石油化工股份有限公司 | Method for testing bearing capability of hydraulic energy storage workover rig |
| CN105610815B (en) * | 2015-12-25 | 2019-07-09 | 中国石油天然气集团公司 | Communication means, client and communication system |
| CN108414201B (en) * | 2018-03-06 | 2020-02-07 | 西南石油大学 | Working condition monitoring and fatigue life predicting system for derrick of ocean platform |
| CN108965396A (en) * | 2018-06-21 | 2018-12-07 | 国网山东省电力公司电力科学研究院 | A kind of double gateway radio packet acquisition systems and acquisition method suitable for thermal test |
| CN109632155A (en) * | 2018-12-19 | 2019-04-16 | 上海建工集团股份有限公司 | Single-point type acquires device and method without uniaxial stress |
| CN110231152B (en) * | 2019-05-08 | 2020-11-03 | 长江大学 | Unmanned aerial vehicle-based derrick detection method and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033053C1 (en) * | 1990-10-18 | 1992-03-05 | Hottinger Baldwin Messtechnik Gmbh, 6100 Darmstadt, De | |
| CN101551282A (en) * | 2009-05-11 | 2009-10-07 | 长安大学 | Bridge load detecting system based on wireless sensor network |
| CN101561245A (en) * | 2009-05-14 | 2009-10-21 | 长安大学 | Bridge strain detection sensor based on wireless sensing network interface |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033053C1 (en) * | 1990-10-18 | 1992-03-05 | Hottinger Baldwin Messtechnik Gmbh, 6100 Darmstadt, De | |
| CN101551282A (en) * | 2009-05-11 | 2009-10-07 | 长安大学 | Bridge load detecting system based on wireless sensor network |
| CN101561245A (en) * | 2009-05-14 | 2009-10-21 | 长安大学 | Bridge strain detection sensor based on wireless sensing network interface |
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