CN110220645A - Deepwater field production of hydrocarbons leaks leak detection sensitivities experimental technique - Google Patents
Deepwater field production of hydrocarbons leaks leak detection sensitivities experimental technique Download PDFInfo
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- CN110220645A CN110220645A CN201910620983.1A CN201910620983A CN110220645A CN 110220645 A CN110220645 A CN 110220645A CN 201910620983 A CN201910620983 A CN 201910620983A CN 110220645 A CN110220645 A CN 110220645A
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- 230000035945 sensitivity Effects 0.000 title claims abstract description 27
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 23
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000002474 experimental method Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000004088 simulation Methods 0.000 claims abstract description 19
- 238000001228 spectrum Methods 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000003595 spectral effect Effects 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims description 3
- 239000010729 system oil Substances 0.000 claims description 2
- 208000032750 Device leakage Diseases 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000005236 sound signal Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/007—Leak detector calibration, standard leaks
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to deepwater field production of hydrocarbons to leak leak detection sensitivities experimental technique, provides corresponding experimental system and method.Gate valve is placed in the water in experimental tank by the present invention, to simulate subsea production system；Gas of the gas source power station to offer relevant pressure inside gate valve, simulation subsea production system production oil gas, the needle-valve that operation is connect with gate valve unclamp, leak out gas and generate bubble in water, to simulate oil and gas leakage；Another gate valve is also placed in water opening and closing repeatedly and carrys out simulation background noise；Underwater sonar monitoring unit receives the voice signal that bubble issues, and is transmitted to control device and is analyzed and processed to waveform, the frequency spectrum of voice signal.The present invention overcomes the problems that operating condition is complicated when originally testing under the environmental condition of marine facility scene deep water hydrocarbon field, testing cost is high, effectively accelerate the progress of system job test, save testing cost.
Description
Technical field
The present invention relates to deepwater field production of hydrocarbons leakage leak detection sensitivities experimental system and methods.
Background technique
In deep-sea oil gas resource recovery process, since serious accident caused by leaking happens occasionally, to the safety of production,
Economical and environment can all bring great influence, and the critical equipment underwater well head of deepwater field production recovers the oil (gas) thus
The timely early warning of early detection of the tiny leakage of the sealed connection and high corrosion pipe section of tree etc. is particularly important, therefore establishes it
Experimental process profile.
Summary of the invention
The present invention provides a kind of deepwater field production of hydrocarbons leakage leak detection sensitivities experimental system and method, experimental situation
It is easy deployment, test process is simple, effectively saving testing cost, accelerates testing progress.
A technical solution of the invention is to provide a kind of deepwater field production of hydrocarbons leakage leak detection sensitivities experiment system
System, it includes experimental tank, gas source power station, the first gate valve, needle-valve, underwater sonar monitoring unit, control device；
First gate valve and the needle-valve being attached thereto by pipeline, are placed in together in the water in experimental tank；
The gas source power station is connected to by pipeline with the first gate valve, and the gas of setting pressure, institute are filled with to the first gate valve
When stating needle-valve and being in releasing orientation, so that leaking to the gas in water from the needle-valve, specified quantity is generated at the appointed time
Bubble；Underwater sonar monitoring unit receives the voice signal that bubble issues and is transmitted to control device.
Preferably, using 1/2 cun of needle-valve, the first gate valve uses 3 cun of gate valves, connects needle-valve and gas source power by hose
It stands；With 100ppm index, the parameter of 1000psi pressure, when the first gate valve of Xiang Suoshu is filled with gas, the bubble of leakage at needle-valve
For 3-4/second.
Preferably, be additionally provided with the second gate valve, and first gate valve disposed adjacent in water, and not with gas source power
It stands or needle-valve connects；Ambient noise is issued by opening and closing the simulation of the second gate valve repeatedly.
Preferably, the underwater sonar monitoring unit includes sequentially connected hydrophone, sonar noise meter, noise amplification
Device, the hydrophone separate distance to a declared goal in the water of experimental tank with needle-valve, and the noise amplifier is connected with control device
It connects.
Preferably, when leakage the frequency of voice signal between 2.5-3.2kHz.
Preferably, the frequency of the ambient noise of simulation is between 10.5-14.5kHz.
Preferably, the control device includes the operating platform for supporting human-computer interaction, to the frequency spectrum spectral line of voice signal into
Row shows, and the ambient noise of voice signal and simulation when gas leaks corresponds to different spectral line fluctuations.
Another technical solution of the invention is to provide a kind of deepwater field production of hydrocarbons leakage leak detection sensitivities experiment
Method leaks leak detection sensitivities experimental system using above-mentioned any one deepwater field production of hydrocarbons, wherein by the first gate valve
It is placed in the water in experimental tank together with the needle-valve being attached thereto by pipeline, to simulate subsea production system；Gas source is dynamic
Power station is connected to by pipeline with the first gate valve, and the gas of setting pressure is filled with to the first gate valve, raw to simulate subsea production system
Oil-producing gas, operation needle-valve release escapes to gas in water, and generates the bubble of specified quantity at the appointed time, to simulate
Oil and gas leakage；Underwater sonar monitoring unit handles the voice signal received, and is transmitted to control device and believes sound
Number waveform, frequency spectrum analyzed.
Preferably, by control device according to voice signal judge whether there is gas leakage analysis as a result, with it is practical whether
The case where operation needle-valve release leaks out gas is compared, to verify the leakage prison of underwater sonar monitoring unit and control device
Brake and system reception sensitivity；
Wherein, the frequency spectrum spectral line of the control device analysis voice signal, and it is flat when spectral line is from expression No leakage
When state switchs to the fluctuation for occurring exceeding setting range, judgement has gas leakage；Alternatively, the sound that the control device will monitor
The frequency of sound signal is compared with voice signal corresponding first frequency range when indicating that gas leaks, when the sound letter monitored
Number frequency enter first frequency range frequency range when, judgement have gas leakage.
Preferably, by the way that the second gate valve is arranged, make its with first gate valve disposed adjacent in water, and it is not dynamic with gas source
Power station or needle-valve connection；Simulation is able to by opening and closing the second gate valve repeatedly and issues ambient noise, the ambient noise of simulation is in the
In the range of two frequency ranges, the first frequency range is different from the second frequency range；
Respectively when second gate valve generates or do not generate the ambient noise of simulation, acquired by underwater sonar monitoring unit
Voice signal is simultaneously analyzed by control device；When second gate valve generates the ambient noise of simulation, if control device phase
Analyze at the needle-valve corresponding to the first gate valve voice signal corresponding frequency spectrum when gas leaks with answering, and by itself and ambient noise
Corresponding frequency spectrum distinguishes, then judges that system reception sensitivity is satisfactory.
The present invention utilizes the underwater valve of component most commonly used in underwater production equipment using the plant experiment environment of simulation
Serial and some ancillary equipments carry out deepwater field production key to oil gas leakage on-line monitoring system and set as experimental vehicle
The function of standby leakage point location and alarm and the system reception sensitivity are tested, and are overcome originally deep at marine facility scene
The problem that operating condition is complicated when testing under the environmental condition of aqueous hydrocarbon field, testing cost is high, accelerates system job testing progress.
Detailed description of the invention
Fig. 1 is the schematic diagram of deepwater field production of hydrocarbons leakage leak detection sensitivities experimental system of the present invention；
Fig. 2 is power spectrum chart when having leakage point in the embodiment of the present invention；
There is no power spectrum chart when leakage point in Fig. 3 the embodiment of the present invention.
Specific embodiment
As shown in Figure 1, the present invention provides a kind of deepwater field production of hydrocarbons leakage leak detection sensitivities experimental system and side
Method.The experimental system includes experimental tank 12, gas source power station 11, gate valve 14, needle-valve 15, underwater sonar monitoring unit, control
Device 13 processed.
Wherein, gate valve 14 is placed in the water in experimental tank 12, and for simulating subsea production system, (such as deepwater field is raw
Produce key equipment)；Gas source power station 11 is connected to the input terminal of gate valve 14 with hose 19, to it inside be filled with the gas of relevant pressure
Body, for simulating the case where subsea production system produces oil gas；The output end of the gate valve 14 connects needle-valve 15 by hose 19,
When manipulation needle-valve 15 unclamps a little, oil and gas leakage can be simulated.When the gas that pipeline is filled with reaches certain pressure, at needle-valve 15
Leaked gas generates bubble in water, and the voice signal of sending can be connect by being placed on the hydrophone 16 in pond nearby
It receives, and after successively by sonar noise meter 17, the processing of noise amplifier 18, is transmitted to control device 13 to the wave of voice signal
Shape, frequency spectrum, parameter etc. carry out subsequent analysis, and by supporting the interface of the operating platform of human-computer interaction to carry out result presentation.
The present invention is the fineness of stopping leakage in the roof of test macro, i.e. system reception sensitivity, uses 3 cun of gate valves and 1/2 cun of needle-valve.It presses
According to 100ppm index (i.e. 1.7ml/s), when 1000psi pressure is filled with gas to gate valve, pass through the gas of 1/2 " needle-valve bore leakage
Steep substantially 3-4/second.Tester can count the bubble number observed by manual time-keeping, be filled with determination
Whether gas and gas leakage situation meet above-mentioned requirements.It is defined under above-mentioned experiment condition, can correctly perceive and just in the present invention
Really determine whether the underwater sonar monitoring unit of leakage situation and control device is the equipment for meeting sensitivity requirement.
In the present embodiment, the sample rate 44.1kHz of underwater sonar monitoring unit, hydrophone and needle-valve simulation leakage point it
Between distance be 1.5m, test pressure 2000psi.Operation needle-valve makes it be respectively at the state of opening and closing, is corresponding with and lets out
The case where leaking and not leaking；In both cases, by underwater sonar monitoring unit collected sound signal and by control device
It is analyzed.
It is power spectrum signal of the control device by interface display shown in Fig. 2, Fig. 3, has respectively corresponded gas leakage and do not had
The case where when having a gas leakage.By the waveform and frequency spectrum of checking signal, it can be seen that power spectrum is relatively flat when No leakage, has
Spectral line has significant change when leakage occurs.There is the main energetic of leakage voice signal all to concentrate in 2.5-3.2kHz frequency band,
Analyze the signal in this frequency range, so that it may meet the requirement of positioning leak position.
If the analysis that voice signal and control device 13 that underwater sonar monitoring unit measures provide as a result, be with this experiment
Relevant device illustrates the underwater sonar monitoring unit to simulate the actual arrangement and operate unanimously that production of hydrocarbons is done in system
And the function of control device 13 is complete.Equipment actual arrangement described above and operational circumstances, that is e.g. simulated lets out
The case where the distance between leak source and hydrophone 16, gas source power station 11 is supplied to gate valve 14, to opening or closing for needle-valve 15
Operation etc..
In another embodiment, two 3 cun of gate valves can be further used, the disposed adjacent in the water of experimental tank,
One of gate valve connect with needle-valve and gas source power station according to described above and simulates tiny leakage by opening needle-valve；It is another
A gate valve is non-aerating also not to configure needle-valve, is opened and closed repeatedly by operating it come simulation background noise, the frequency (example of the ambient noise
Such as in 10.5-14.5kHz) not gas leak when voice signal frequency range 2.5-3.2kHz within.Then, respectively described
When another gate valve generates or do not generate ambient noise, passes through underwater sonar monitoring unit collected sound signal and pass through control dress
Set analysis.When another described gate valve generates ambient noise, if control device 13 still can correspondingly analyze gas
Voice signal corresponding frequency spectrum when leakage, and its frequency spectrum corresponding with ambient noise is successfully distinguished, then it is assumed that system
Receiving sensitivity is satisfactory.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. a kind of deepwater field production of hydrocarbons leaks leak detection sensitivities experimental system, which is characterized in that include experimental tank, gas
Driving source station, the first gate valve, needle-valve, underwater sonar monitoring unit, control device；First gate valve and connected therewith by pipeline
The needle-valve connect is placed in together in the water in experimental tank；The gas source power station is connected to by pipeline with the first gate valve, to first
Gate valve is filled with the gas of setting pressure, when the needle-valve is in releasing orientation, so that the gas in water is leaked to from the needle-valve,
The bubble of specified quantity is generated at the appointed time；Underwater sonar monitoring unit receives the voice signal that bubble issues and is transmitted to
Control device.
2. deepwater field production of hydrocarbons as described in claim 1 leaks leak detection sensitivities experimental system, which is characterized in that use
1/2 cun of needle-valve, the first gate valve use 3 cun of gate valves, connect needle-valve and gas source power station by hose；With 100ppm index,
The parameter of 1000psi pressure, when the first gate valve of Xiang Suoshu is filled with gas, the bubble leaked out at needle-valve is 3-4/second.
3. deepwater field production of hydrocarbons as claimed in claim 1 or 2 leaks leak detection sensitivities experimental system, which is characterized in that
It is additionally provided with the second gate valve, and first gate valve disposed adjacent in water, and do not connect with gas source power station or needle-valve；It is logical
It crosses and opens and closes the second gate valve simulation sending ambient noise repeatedly.
4. deepwater field production of hydrocarbons as described in claim 1 leaks leak detection sensitivities experimental system, which is characterized in that described
Underwater sonar monitoring unit includes sequentially connected hydrophone, sonar noise meter, noise amplifier, and the hydrophone is in test water
Distance to a declared goal is separated in the water in pond with needle-valve, the noise amplifier is connected with control device.
5. deepwater field production of hydrocarbons as claimed in claim 3 leaks leak detection sensitivities experimental system, which is characterized in that leakage
When voice signal frequency between 2.5-3.2kHz；The frequency of the ambient noise of simulation is between 10.5-14.5kHz.
6. deepwater field production of hydrocarbons leaks leak detection sensitivities experimental system as claimed in claim 3 or 5, which is characterized in that
The control device includes the operating platform for supporting human-computer interaction, is showed to the frequency spectrum spectral line of voice signal, gas leakage
When voice signal and the ambient noise of simulation correspond to different spectral line fluctuations.
7. a kind of deepwater field production of hydrocarbons leaks leak detection sensitivities experimental method, any one of claim 1-6 is used
The deepwater field production of hydrocarbons leaks leak detection sensitivities experimental system, which is characterized in that by the first lock in the method
Valve and the needle-valve being attached thereto by pipeline are placed in together in the water in experimental tank, to simulate subsea production system；Gas source
Power station is connected to by pipeline with the first gate valve, is filled with the gas of setting pressure, to the first gate valve to simulate subsea production system
Oil gas is produced, operation needle-valve release escapes to gas in water, and generates the bubble of specified quantity at the appointed time, to mould
Quasi- oil and gas leakage；Underwater sonar monitoring unit handles the voice signal received, and is transmitted to control device to sound
Waveform, the frequency spectrum of signal are analyzed.
8. deepwater field production of hydrocarbons as claimed in claim 7 leaks leak detection sensitivities experimental method, which is characterized in that will control
Device processed judges whether there is the analysis of gas leakage as a result, leaking gas with whether reality operates needle-valve release according to voice signal
Out the case where, is compared, come verify underwater sonar monitoring unit and control device leakage monitoring function and system receive it is sensitive
Degree；
Wherein, the frequency spectrum spectral line of the control device analysis voice signal, and the flat condition when spectral line is from expression No leakage
When switching to the fluctuation for occurring exceeding setting range, judgement has gas leakage；Alternatively, the control device believes the sound monitored
Number frequency, with indicate gas leakage when corresponding first frequency range of voice signal be compared, when the voice signal monitored
When frequency enters the frequency range of first frequency range, judgement has gas leakage.
9. deepwater field production of hydrocarbons as claimed in claim 7 leaks leak detection sensitivities experimental method, which is characterized in that pass through
Second gate valve is set, make its with first gate valve disposed adjacent in water, and do not connect with gas source power station or needle-valve；Pass through
The second gate valve is opened and closed repeatedly is able to simulation sending ambient noise, the ambient noise of simulation is in the range of the second frequency range, and first
Frequency range is different from the second frequency range；
Respectively when second gate valve generates or do not generate the ambient noise of simulation, sound is acquired by underwater sonar monitoring unit
Signal is simultaneously analyzed by control device；When second gate valve generates the ambient noise of simulation, if control device is correspondingly
Voice signal corresponding frequency spectrum when analyzing gas leakage at the needle-valve corresponding to the first gate valve, and it is corresponding with ambient noise
Frequency spectrum distinguish, then judge that system reception sensitivity is satisfactory.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018494A (en) * | 2021-10-27 | 2022-02-08 | 中广核检测技术有限公司 | Nuclear condenser tracing and leakage detecting equipment test simulation system and method |
| CN116625582A (en) * | 2023-07-24 | 2023-08-22 | 上海安宸信息科技有限公司 | Movable gas leakage monitoring system for petroleum and petrochemical gas field station |
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| CN114018494A (en) * | 2021-10-27 | 2022-02-08 | 中广核检测技术有限公司 | Nuclear condenser tracing and leakage detecting equipment test simulation system and method |
| CN114018494B (en) * | 2021-10-27 | 2024-02-13 | 中广核检测技术有限公司 | Nuclear condenser tracing leakage detection equipment test simulation system and method |
| CN116625582A (en) * | 2023-07-24 | 2023-08-22 | 上海安宸信息科技有限公司 | Movable gas leakage monitoring system for petroleum and petrochemical gas field station |
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