CN105843140A - Underground pipeline monitoring system for oil exploitation - Google Patents

Abstract

The invention discloses an underground pipeline monitoring system for oil exploitation. The underground pipeline monitoring system includes a monitoring module, a data processing module, a security state evaluation module, an early warning and alarm module and a simulation display module, wherein the monitoring module includes a wireless sensor network, a strain sensor assembly and a displacement sensor, the data processing module includes a collection center station, a signal conditioner and a signal transmission device, the security state evaluation module includes a microprocessor, the early warning and alarm module includes an analysis processor and an alarm, and the simulation display module includes a 3D GIS simulation platform. With the underground pipeline monitoring system of the invention adopted, real-time monitoring on the health of an underground pipeline can be realized, and the remaining life of the underground pipeline can be monitored according to monitoring data. The sewage treatment system is accurate and intelligent. The underground pipeline monitoring system is unprecedentedly advantageous in full coverage and around-the-clock monitoring.

Description

A kind of underground piping for oil exploitation monitors system

Technical field

The present invention relates to oil exploration equipment monitoring field, be specifically related to a kind of underground piping for oil exploitation and monitor system.

Background technology

In correlation technique, typically carried out the health monitoring of the underground piping for oil exploitation by monitoring sensor, but sense Device great majority cannot be according to the residual life of this underground piping of data prediction of monitoring.This defect causes underground piping attendant Need the correlation experience by oneself to judge the data that sensor is fed back, reduce the promptness to underground piping monitoring, simultaneously Also the workload of underground piping attendant is considerably increased.

Summary of the invention

For the problems referred to above, the present invention provides a kind of underground piping for oil exploitation to monitor system.

The purpose of the present invention realizes by the following technical solutions:

A kind of underground piping for oil exploitation monitors system, including:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module, described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, institute State the average displacement that the displacement data transmitted by signal transmitting apparatus is carried out being calculated between two time phase t by microprocessor Difference, the most first to compensate displacement difference owing to underground piping exists phenomenon of expanding with heat and contract with cold, then by average displacement difference and regulation Displacement difference threshold value compares, it is judged that described average displacement difference is the most in a safe condition, and according to strain sensor assemblies 24h Monitoring Data calculate, obtain stress amplitude spectrum, according to stress amplitude spectrum computation structure remanent fatigue life, and will described remain Remaining fatigue life compares with structure projected life, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\Δs}}^{\′}=\mathrm{\Δ}s-\frac{{\mathrm{\α}}_1{a}_1+{\mathrm{\α}}_2{a}_2+...+{\mathrm{\α}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\·\underset{i}{\overset{n}{\Σ}}\[\frac{p_i}{{10}^7}\·{\left(\frac{{\mathrm{\σ}}_x\left(i\right)}{{\mathrm{\σ}}_b}\right)}^k\]}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

D, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

E, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by f, result according to safe condition module estimation is in GIS platform Interface on show.

The invention have the benefit that and connected by the structure of modules, it is achieved the full-automatic monitoring that structure dynamics is healthy, Be easy to personnel pinpoint the problems early, solution problem；Propose the health monitoring carrying out underground piping with wireless sensor network, cover Gai Guang, real-time；Propose fatigue life safety judgment formula, decrease the workload of calculating, improve monitoring system Work efficiency；Propose the computing formula of average displacement, and average displacement is corrected, use average displacement and displacement Threshold value compares judgement, decreases the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves the measurement of strain Precision, and then improve the overall measurement accuracy of monitoring system；Utilize the health status of GIS emulation platform simulation underground piping, There is the good effect carrying out interface alternation with user.

Accompanying drawing explanation

The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not constitute any limitation of the invention, for Those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtains the attached of other according to the following drawings Figure.

Fig. 1 is the structured flowchart of the present invention.

Detailed description of the invention

The invention will be further described with the following Examples.

Embodiment 1: a kind of underground piping for oil exploitation as shown in Figure 1 monitors system, comprising:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

A, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

B, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by c, result according to safe condition module estimation is in GIS platform Interface on show.

Described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, and described microprocessor will be transmitted by signal The average displacement that the displacement data that device transmits carries out being calculated between two time phase t is poor, owing to underground piping exists heat Displacement difference the most first to be compensated by swollen shrinkage phenomenon, then average displacement difference is compared with regulation displacement difference limen value, sentences Disconnected described average displacement difference is the most in a safe condition, and calculates according to the Monitoring Data of strain sensor assemblies 24h, Compose to stress amplitude, according to the remanent fatigue life of stress amplitude spectrum computation structure, and described remanent fatigue life is designed the longevity with structure Life compares, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\&Delta;s}}^{\&prime;}=\mathrm{\&Delta;}s-\frac{{\mathrm{\&alpha;}}_1{a}_1+{\mathrm{\&alpha;}}_2{a}_2+...+{\mathrm{\&alpha;}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^k\&rsqb;}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal.

In this embodiment, connected by the structure of modules, it is achieved that the full-automatic monitoring that structure dynamics is healthy, it is simple to Personnel pinpoint the problems early, solution problem；Propose the health monitoring carrying out underground piping with wireless sensor network, cover wide, Real-time；Propose fatigue life safety judgment formula, decrease the workload of calculating, improve the work effect of monitoring system Rate；Propose the computing formula of average displacement, and average displacement is corrected, use average displacement to enter with displacement threshold value Row multilevel iudge, decreases the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves the certainty of measurement of strain, And then improve the overall measurement accuracy of monitoring system；Utilize the health status of GIS emulation platform simulation underground piping, have good The good effect carrying out interface alternation with user；Time phase t=24h, it is achieved that the full-automatic prison of underground piping dynamical health Surveying, the overall measurement accuracy of monitoring system improves 15%.

Embodiment 2: a kind of underground piping for oil exploitation as shown in Figure 1 monitors system, comprising:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

A, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

B, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by c, result according to safe condition module estimation is in GIS platform Interface on show.

Described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, and described microprocessor will be transmitted by signal The average displacement that the displacement data that device transmits carries out being calculated between two time phase t is poor, owing to underground piping exists heat Displacement difference the most first to be compensated by swollen shrinkage phenomenon, then average displacement difference is compared with regulation displacement difference limen value, sentences Disconnected described average displacement difference is the most in a safe condition, and calculates according to the Monitoring Data of strain sensor assemblies 24h, Compose to stress amplitude, according to the remanent fatigue life of stress amplitude spectrum computation structure, and described remanent fatigue life is designed the longevity with structure Life compares, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\&Delta;s}}^{\&prime;}=\mathrm{\&Delta;}s-\frac{{\mathrm{\&alpha;}}_1{a}_1+{\mathrm{\&alpha;}}_2{a}_2+...+{\mathrm{\&alpha;}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^k\&rsqb;}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal.

In this embodiment, connected by the structure of modules, it is achieved that the full-automatic monitoring that structure dynamics is healthy, it is simple to Personnel pinpoint the problems early, solution problem；Propose the health monitoring carrying out underground piping with wireless sensor network, cover wide, Real-time；Propose fatigue life safety judgment formula, decrease the workload of calculating, improve the work effect of monitoring system Rate；Propose the computing formula of average displacement, and average displacement is corrected, use average displacement to enter with displacement threshold value Row multilevel iudge, decreases the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves the certainty of measurement of strain, And then improve the overall measurement accuracy of monitoring system；Utilize the health status of GIS emulation platform simulation underground piping, have good The good effect carrying out interface alternation with user；Time phase t=28h, it is achieved that the full-automatic prison of underground piping dynamical health Surveying, the overall measurement accuracy of monitoring system improves 17%.

Embodiment 3: a kind of underground piping for oil exploitation as shown in Figure 1 monitors system, comprising:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

A, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

B, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by c, result according to safe condition module estimation is in GIS platform Interface on show.

Described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, and described microprocessor will be transmitted by signal The average displacement that the displacement data that device transmits carries out being calculated between two time phase t is poor, owing to underground piping exists heat Displacement difference the most first to be compensated by swollen shrinkage phenomenon, then average displacement difference is compared with regulation displacement difference limen value, sentences Disconnected described average displacement difference is the most in a safe condition, and calculates according to the Monitoring Data of strain sensor assemblies 24h, Compose to stress amplitude, according to the remanent fatigue life of stress amplitude spectrum computation structure, and described remanent fatigue life is designed the longevity with structure Life compares, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\&Delta;s}}^{\&prime;}=\mathrm{\&Delta;}s-\frac{{\mathrm{\&alpha;}}_1{a}_1+{\mathrm{\&alpha;}}_2{a}_2+...+{\mathrm{\&alpha;}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^k\&rsqb;}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal.

In this embodiment, connected by the structure of modules, it is achieved that the full-automatic monitoring that structure dynamics is healthy, it is simple to Personnel pinpoint the problems early, solution problem；Propose the health monitoring carrying out underground piping with wireless sensor network, cover wide, Real-time；Propose fatigue life safety judgment formula, decrease the workload of calculating, improve the work effect of monitoring system Rate；Propose the computing formula of average displacement, and average displacement is corrected, use average displacement to enter with displacement threshold value Row multilevel iudge, decreases the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves the certainty of measurement of strain, And then improve the overall measurement accuracy of monitoring system；Utilize the health status of GIS emulation platform simulation underground piping, have good The good effect carrying out interface alternation with user；Time phase t=32h, it is achieved that the full-automatic prison of underground piping dynamical health Surveying, the overall measurement accuracy of monitoring system improves 18%.

Embodiment 4: a kind of underground piping for oil exploitation as shown in Figure 1 monitors system, comprising:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

A, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

B, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by c, result according to safe condition module estimation is in GIS platform Interface on show.

Described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, and described microprocessor will be transmitted by signal The average displacement that the displacement data that device transmits carries out being calculated between two time phase t is poor, owing to underground piping exists heat Displacement difference the most first to be compensated by swollen shrinkage phenomenon, then average displacement difference is compared with regulation displacement difference limen value, sentences Disconnected described average displacement difference is the most in a safe condition, and calculates according to the Monitoring Data of strain sensor assemblies 24h, Compose to stress amplitude, according to the remanent fatigue life of stress amplitude spectrum computation structure, and described remanent fatigue life is designed the longevity with structure Life compares, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\&Delta;s}}^{\&prime;}=\mathrm{\&Delta;}s-\frac{{\mathrm{\&alpha;}}_1{a}_1+{\mathrm{\&alpha;}}_2{a}_2+...+{\mathrm{\&alpha;}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^k\&rsqb;}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal.

In this embodiment, connected by the structure of modules, it is achieved that the full-automatic monitoring that structure dynamics is healthy, it is simple to Personnel pinpoint the problems early, solution problem；Propose the health monitoring carrying out underground piping with wireless sensor network, cover wide, Real-time；Propose fatigue life safety judgment formula, decrease the workload of calculating, improve the work effect of monitoring system Rate；Propose the computing formula of average displacement, and average displacement is corrected, use average displacement to enter with displacement threshold value Row multilevel iudge, decreases the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves the certainty of measurement of strain, And then improve the overall measurement accuracy of monitoring system；Utilize the health status of GIS emulation platform simulation underground piping, have good The good effect carrying out interface alternation with user；Time phase t=36h, it is achieved that the full-automatic prison of underground piping dynamical health Surveying, the overall measurement accuracy of monitoring system improves 20%.

Embodiment 5: a kind of underground piping for oil exploitation as shown in Figure 1 monitors system, comprising:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

A, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

B, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by c, result according to safe condition module estimation is in GIS platform Interface on show.

Described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, and described microprocessor will be transmitted by signal The average displacement that the displacement data that device transmits carries out being calculated between two time phase t is poor, owing to underground piping exists heat Displacement difference the most first to be compensated by swollen shrinkage phenomenon, then average displacement difference is compared with regulation displacement difference limen value, sentences Disconnected described average displacement difference is the most in a safe condition, and calculates according to the Monitoring Data of strain sensor assemblies 24h, Compose to stress amplitude, according to the remanent fatigue life of stress amplitude spectrum computation structure, and described remanent fatigue life is designed the longevity with structure Life compares, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\&Delta;s}}^{\&prime;}=\mathrm{\&Delta;}s-\frac{{\mathrm{\&alpha;}}_1{a}_1+{\mathrm{\&alpha;}}_2{a}_2+...+{\mathrm{\&alpha;}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^k\&rsqb;}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal.

In this embodiment, connected by the structure of modules, it is achieved that the full-automatic monitoring that structure dynamics is healthy, it is simple to Personnel pinpoint the problems early, solution problem；Propose the health monitoring carrying out underground piping with wireless sensor network, cover wide, Real-time；Propose fatigue life safety judgment formula, decrease the workload of calculating, improve the work effect of monitoring system Rate；Propose the computing formula of average displacement, and average displacement is corrected, use average displacement to enter with displacement threshold value Row multilevel iudge, decreases the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves the certainty of measurement of strain, And then improve the overall measurement accuracy of monitoring system；Utilize the health status of GIS emulation platform simulation underground piping, have good The good effect carrying out interface alternation with user；Time phase t=40h, it is achieved that the full-automatic prison of underground piping dynamical health Surveying, the overall measurement accuracy of monitoring system improves 21%.

Last it should be noted that, above example is only in order to illustrate technical scheme, rather than to scope Restriction, although having made to explain to the present invention with reference to preferred embodiment, it will be understood by those within the art that, Technical scheme can be modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.

Claims (1)

1. for a underground piping monitoring system for oil exploitation, for the health of underground piping is carried out dynamic monitoring and early warning, its Feature is, including:

(1) monitoring modular, including the wireless sensor network being monitored underground piping health, each for monitoring underground piping The strain sensor assemblies of dangerous position and displacement transducer, described wireless sensor network all standing is to underground piping health structure Being monitored, meanwhile, network uses advanced physical message emerging system, and underground piping structural health is carried out real-time perception； Institute's displacement sensors is for the working base point of monitoring dangerous position change in displacement with for checking the overall situation of working base point stability Three dimensions displacement monitoring is carried out, each dangerous position of described underground piping, working base point and overall situation datum mark based on datum mark Determine by underground piping is carried out FEM Simulation；Described strain sensor assemblies includes performance parameters and the complete phase of structure Same work strain transducer and temperature-compensating strain transducer, described work strain transducer and temperature-compensating strain It is arranged at after sensor series on each dangerous position of underground piping；

(2) data processing module, it includes that the data gathering central station, collecting collection central station carry out nursing one's health processing and amplifying Signal conditioner and the signal transmitting apparatus that transmits of data that signal conditioner is processed；

(3) security state evaluation module, described security state evaluation module includes the microprocessor connecting signal transmitting apparatus, institute State the average displacement that the displacement data transmitted by signal transmitting apparatus is carried out being calculated between two time phase t by microprocessor Difference, the most first to compensate displacement difference owing to underground piping exists phenomenon of expanding with heat and contract with cold, then by average displacement difference and regulation Displacement difference threshold value compares, it is judged that described average displacement difference is the most in a safe condition, and according to strain sensor assemblies 24h Monitoring Data calculate, obtain stress amplitude spectrum, according to stress amplitude spectrum computation structure remanent fatigue life, and will described remain Remaining fatigue life compares with structure projected life, it is judged that described remanent fatigue life is the most in a safe condition；

A, average displacement w_(i)Computing formula be:

Wherein, taking 0.5h is sampling time interval, max&min_(i+t)For the maximum in the displacement data of previous time phase and Minimum sum, max&min_(i+2t)For the maximum in the displacement data in latter time stage and minimum sum；

B, setting the coefficient of expansion as α, revised average displacement is:

${\mathrm{\&Delta;s}}^{\&prime;}=\mathrm{\&Delta;}s-\frac{{\mathrm{\&alpha;}}_1{a}_1+{\mathrm{\&alpha;}}_2{a}_2+...+{\mathrm{\&alpha;}}_n{a}_n}{n}(T-T_0)$

Wherein, α₁, α₂..., α_nFor the material temperature coefficient of expansion of each dangerous position, a₁, a₂..., a_nFor coefficient, T For mean temperature in seclected time section, T₀For underground piping location year-round average temperature.

C, the judgment formula of described life-span security evaluation be:

Work as σ_x(i)≥σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^k\&rsqb;}-T_B$

Work as σ_x(i)<σ_bTime,

$A=\frac{1}{365\&CenterDot;\underset{i}{\overset{n}{\&Sigma;}}\&lsqb;\frac{p_i}{{10}^7}\&CenterDot;{\left(\frac{{\mathrm{\&sigma;}}_x\left(i\right)}{{\mathrm{\&sigma;}}_b}\right)}^{k+2}\&rsqb;}-T_B$

Wherein, σ_bFor the structural fatigue limit, σ_xFor the hot spot stress range of each monitoring point, k is that the slope of fatigue curve is reciprocal, p_i For the Cyclic Stress coefficient of the actual experience of structure under hot spot stress range, T_BFatigue life is designed for structure, in actual applications, Can be affected by underground piping overload, be therefore dynamically change, and along with overload uses the change of natural law to be a nonlinear mistake Journey,T_AFatigue life, d is designed for initiating structure_zRepresent underground Pipeline overall design uses natural law, d_gRepresent that underground piping overload uses natural law；When A is more than 0, it is determined that structural life-time is in safety State, when A is less than or equal to 0, output alarm signal；

(4) early warning and alarming module, it includes for preventing the analysis processor of false alarm, alarm and information database of record, The input of described analysis processor connects described microprocessor, and the outfan of analysis processor connects described alarm；

(5) emulation display module, including the three-dimension GIS emulation platform being connected with microprocessor, described three-dimension GIS emulation platform The assessment result of security state evaluation module is carried out emulation display, the health status of simulation underground piping, and simulation process is:

A, utilize finite element software to carry out after the modeling of underground piping to import GIS platform, build underground piping different component respectively Model, adjusts the locus of pipe element under various places in GIS platform；

B, simulated in GIS platform by different shape symbols explicitly descend each dangerous position of pipeline, strain sensor assemblies and Displacement transducer；

The color that the dangerous position being not at safe condition is specified by c, result according to safe condition module estimation is in GIS platform Interface on show.