CN203324193U - In-situ detection stimulation system for geochemical parameters of hydrates in abyssal deposits - Google Patents
In-situ detection stimulation system for geochemical parameters of hydrates in abyssal deposits Download PDFInfo
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- CN203324193U CN203324193U CN2013203224236U CN201320322423U CN203324193U CN 203324193 U CN203324193 U CN 203324193U CN 2013203224236 U CN2013203224236 U CN 2013203224236U CN 201320322423 U CN201320322423 U CN 201320322423U CN 203324193 U CN203324193 U CN 203324193U
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Abstract
The utility model belongs to the fields of in-situ measurement technology and applications of the geochemical parameters of ocean natural gas hydrates. An in-situ detection stimulation system for geochemical parameters of hydrates in abyssal deposits comprises a laser-Raman spectrum detection system (I), an abyssal environment stimulation system (II), a hydraulic system (III) and a real-time parameter monitoring processing system (IV), wherein the abyssal environment stimulation system (II) is electrically connected with the laser-Raman spectrum detection system (I) and the real-time parameter monitoring processing system (IV) respectively, and the hydraulic system (III) is arranged in the abyssal environment stimulation system (II). The in-situ detection stimulation system eliminates the nondeterminacy in sampling and ex-situ determination, is simple, real-time and efficient, and can safely acquire high-definition information in a high-pressure simulation cabin. In addition, the device can also be used for laboratory simulation and real-time monitoring of a hydrate exploring method.
Description
Technical field
The utility model belongs to ocean gas hydrate Geochemical Parameters in-situ technique and application, relates in particular to a kind of simulated deep-sea environment, surveys the simulation system that in sediment, in gas hydrate generation, decomposable process, Geochemical Parameters changes.
Background technology
Sea bottom hydrate form or decomposable process in the fluid that discharges and seepage hydro carbons can change the sediment that covers on it and some chemical property of pore water and bottom seawater, these abnormal geochemistry responses can be used for indicating the existence of gas hydrate.
To the research of sea bed gas hydrate Geochemical Parameters, generally be confined to the abyssal sediment geological sampling at present, then carry out lab analysis.But, stablize required temperature, pressure condition limit owing to being subject to gas hydrate, even adopt the pressure tight sampling mode, also be difficult to guarantee that in sampling process, the physicochemical property of gas hydrate does not change, cause the traditional sampling mode to have larger detecting error.
In recent years, Laser Roman spectroscopic analysis of composition successfully is applied to the in-situ observation of marine bottom sediment, by underwater robot, Raman fiber is focused on the object in seabed, can obtain relevant chemical parameters information, but this method costliness does not have universality.
Therefore; be badly in need of developing the test macro of gas hydrate Geochemical Parameters in-situ investigation in the sediment that can be used for deep-marine-environment; can carry out experimental simulation to the formation of the gas hydrate in abyssal sediment and decomposable process on the one hand; on the other hand; can change and carry out in-situ monitoring the Sediment Pore Water ion concentration formed in process, for the natural gas hydrate resources exploration provides important parameter.
The utility model content
The purpose of this utility model is to provide sediment inner fluid ion parameters in situ detection device in a kind of gas hydrate generative process, and its technique effect can be realized the chemical composition of hydrate generation/decomposable process in different layers position sediment in the high pressure low temperature reactor and the response condition of ion are carried out near real-time quantitative monitoring.
For achieving the above object; the utility model adopts following technical scheme: it comprises that laser Raman spectroscopy detection system, deep-marine-environment simulation system, hydraulic system and parameter monitor disposal system in real time; the deep-marine-environment simulation system is monitored the disposal system electrical connection in real time with laser Raman spectroscopy detection system, parameter respectively, and hydraulic system is arranged in the deep-marine-environment simulation system.
This utility model has been developed the deep-marine-environment simulation system; laser raman in-situ investigation technology is applied in laboratory in the deep-marine-environment simulation system; analogue technique research hydrate is composed the geochemistry microenvironment of depositing stratum by experiment; realized the chemical composition of hydrate generation/decomposable process in different layers position sediment in the high pressure low temperature reactor and the response condition of ion are carried out near real-time quantitative monitoring, can detect in Sediment Pore Water and dissolve CH
4, H
2S/HS
-And SO
4 2-The variation that waits chemical parameters, there is real-time and accuracy, overall system design meets deep-sea analog operation environmental requirement, especially gas hydrate form low temperature, the high pressure requirement of simulated environment.
The Raman spectrum detection system comprises laser Raman spectrometer, optical fiber, optic probe and detection storehouse, laser Raman spectrometer connects optic probe by optical fiber, optic probe is connected with the detection storehouse, and optic probe is arranged on the lid on autoclave top, surveys storehouse and is arranged in autoclave.Laser Raman spectrometer laser emission wavelength: 532nm; Laser emission power: 100mW; Spectral coverage: 100-4000cm
-1Spectral resolution: 4cm
-1Ccd sensor: enhancement mode CCD, pixel 2048*512, optic probe adopts sapphire window, can tolerate 3000PSI pressure, adopt the optical fiber connected mode between each parts, thereby both guaranteed job stability and the environmental resistance of system, make again the sniffer height integrated, volume is little, completes the original position analysis of each sample in reactor with the form of spectral probe.Stability of layout is high, and antijamming capability is strong, stable work in work under the complex experiment room environmental.
The deep-marine-environment simulation system comprises control pressurer system, temperature control system and autoclave; autoclave is arranged in temperature control system and is connected with control pressurer system; the gaseous tension in autoclave is controlled and monitored to control pressurer system, and temperature control system is for controlling and regulate the temperature of autoclave.
Control pressurer system comprises gas cylinder, pressure generating equipment and pressure transducer, and gas cylinder is successively by being communicated with in autoclave after pressure transducer, pressure generating equipment.The gaseous tension in autoclave is controlled and monitored to control pressurer system.
Temperature control system comprises chuck and water bath, and chuck is provided with inside and outside two-layer, and water bath is arranged between inside and outside two-layer chuck, the external constant-temperature circulating device of water bath, and autoclave is arranged in the chuck of internal layer.Temperature control system is for the temperature of control and adjusting autoclave, temperature control accurate (error<0.1 ℃), stable;
Be provided with temperature probe I and temperature probe II in autoclave, temperature probe I, temperature probe II are separately positioned on the two ends up and down of autoclave, and temperature probe I, temperature probe II are monitored in real time disposal system with parameter respectively and be connected.Autoclave: integral body is quick-opening structure, and volume 50L, bear pressure 20MPa, and the kettle outside is furnished with the water-bath chuck, can accurately control experimental temperature in still.In still, mainly be equipped with sediment sample, seawater (or artificial seawater), temperature probe (lay: in overlying water 1, in sediment 5), can carry out hydrate generation and decomposition experiment within it, there are the characteristics high pressure resistant, that leakproofness is strong, safe and reliable.
Hydraulic system is arranged on the lid on autoclave top, hydraulic system comprises four-way check valve, reversal valve, pressure unit and manual liquid pump, reversal valve is connected with four-way check valve, manual liquid pump respectively, and four-way check valve connects respectively four solid-state filtrators that are arranged on differing heights in autoclave.Hydraulic system is plane SH wave thing pore water draw-out device in the high pressure low temperature reactor, sample separation and ADMINISTRATION SUBSYSTEM as whole system, be one of key core technology of whole system development, can realize sampling and pipeline circulation flushing to reactor internal void water and overlying water.Because sampling, test process all carry out in the high pressure low temperature reactor, Raman spectrum probe, each pipeline Control Component, liquid driving pump all will be installed on reactor and cover with the form of wearing the wall part, the valve member that native system is used is all the autonomous Design customization, has the characteristics accurate, integrated, that volume is little of controlling.
Parameter is monitored in real time disposal system and is adopted computing machine, computer system and related software, consists of.All parameters in experimentation (comprising the data such as temperature, pressure, spectral analysis) all can be monitored in real time with data and process.
This utility model, in real work, can carry out that hydrate in abyssal sediment is synthetic, the experimental simulation of decomposable process as required, and to the important Geochemical Parameters of relevant tool Raman active (as CH
4, H
2S/HS
-And SO
4 2-Deng) carrying out original position, real-time quantitative test, the more stable water of Selection of internal standard is at-1640 Δ cm
-1Near O-H vibrational spectra peak (1500-1800 Δ cm
-1).Compare with traditional analytical approach, use the advantage of situ Raman Spectroscopy analysis to be: 1, eliminated sampling and ex situ and measured the uncertainty produced; 2, simple, real-time, efficient; 3, can obtain safely the high-fidelity information in the high pressure simulation cabin.In addition, this device also can be used for laboratory simulation and the Real-Time Monitoring thereof of hydrate recovery method.
The accompanying drawing explanation
Fig. 1 is inner structure schematic diagram of the present utility model;
The sample collection that Fig. 2 is hydraulic system and analytical work schematic diagram;
The pipeline circulation flushing fundamental diagram that Fig. 3 is hydraulic system.
In figure: I-laser Raman spectroscopy detection system; II-deep-marine-environment simulation system; III-hydraulic system; IV-parameter is monitored disposal system in real time;
1-optical fiber; The 2-laser Raman spectrometer; The solid-state filtrator of 3-; The 4-data acquisition and processing system; 5-temperature probe I; The 6-four-way check valve; 7-temperature probe II; The 8-reversal valve; The 9-pressure unit; The 10-optic probe; 11-hand fluid pump; 12-surveys storehouse; The 13-low temperature thermostat bath; The 14-chuck; The 15-autoclave; The 16-gas cylinder; The 17-pressure generating equipment; The 18-pressure transducer; The 19-water bath.
Embodiment
As shown in Figure 1; hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment of the present utility model; comprise that laser Raman spectroscopy detection system, deep-marine-environment simulation system, hydraulic system and parameter monitor disposal system in real time; the deep-marine-environment simulation system is monitored the disposal system electrical connection in real time with laser Raman spectroscopy detection system, parameter respectively, and hydraulic system is arranged in the deep-marine-environment simulation system.
Deep-marine-environment simulation system II comprises control pressurer system, temperature control system and autoclave 15; autoclave 15 is arranged in temperature control system and is connected with control pressurer system; the gaseous tension in autoclave 15 is controlled and monitored to control pressurer system, and temperature control system is for controlling and regulate the temperature of autoclave 15.
Control pressurer system comprises gas cylinder 16, pressure generating equipment 17 and pressure transducer 18, and gas cylinder 16 is successively by being communicated with autoclave 15 is interior after pressure transducer 18, pressure generating equipment 17.
Be provided with temperature probe I 5 and temperature probe II 7 in autoclave 15, temperature probe I 5, temperature probe II 7 are separately positioned on the two ends up and down of autoclave 15, and temperature probe I 5, temperature probe II 7 are monitored in real time the disposal system IV with parameter respectively and be connected.
Temperature control system comprises chuck 14 and water bath 19, and chuck 14 is provided with inside and outside two-layer, and water bath 19 is arranged between inside and outside two-layer chuck 14, the external constant-temperature circulating device 13 of water bath 19, and autoclave 15 is arranged in the chuck 14 of internal layer.
The hydraulic system III is arranged on the lid on autoclave 15 tops, the hydraulic system III comprises four-way check valve 6, reversal valve 8, pressure unit 9 and manual liquid pump 11, reversal valve 8 is connected with four-way check valve 6, manual liquid pump 11 respectively, and four-way check valve 6 connects respectively four solid-state filtrators 3 that are arranged on autoclave 15 interior differing heights.
The Raman spectrum detection system comprises laser Raman spectrometer 2, optical fiber 1, optic probe 10 and surveys storehouse 12, laser Raman spectrometer 2 connects optic probe 10 by optical fiber 1, optic probe 10 is connected with detection storehouse 12, optic probe 10 is arranged on the lid on autoclave 15 tops, surveys storehouse 12 and is arranged in autoclave 15.
Parameter is monitored in real time the disposal system IV and is adopted computing machine 4.
Its concrete step of using is:
(1) sediment is put into to autoclave 15, and by solid-state filtrator 3 fixed placement in target detection layer position, inject appropriate artificial seawater (or seawater) and discharge the air in reactor;
(2) each sniffer is installed;
(3) whole system is airtight, add the methane gas of certain pressure intensity, place and approximately within 24 hours, make gas dissolve in water;
(4) start temperature control system to suitable temperature and keep constant, hydrate is generated;
(5) reversal valve is gone to " work " position, regulate respectively four-way check valve corresponding to the sampling location in Fig. 1 to " A ", " B ", " C ", " D " station, operation hydraulic hand-pump extraction pore water sample is to surveying storehouse, as shown in Figure 2;
(6) use the laser Raman spectroscopy detection system to be surveyed, obtain relevant supplemental characteristic and carry out the data processing;
(7) before having surveyed destination layer position replacing research object, reversal valve is turned to " recoil " station, operate manual fluid pump, pump is got overlying water pipeline is rinsed, as shown in Figure 3.Repeat above-mentioned flow process (5), (6) can carry out sampling and testing to other layer of position.
Claims (8)
1. hydrate Geochemical Parameters in-situ investigation simulation system in an abyssal sediment; it is characterized in that; comprise that laser Raman spectroscopy detection system (I), deep-marine-environment simulation system (II), hydraulic system (III) and parameter monitor disposal system (IV) in real time; deep-marine-environment simulation system (II) is monitored disposal system (IV) electrical connection in real time with laser Raman spectroscopy detection system (I), parameter respectively, and hydraulic system (III) is arranged in deep-marine-environment simulation system (II).
2. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 1; it is characterized in that; deep-marine-environment simulation system (II) comprises control pressurer system, temperature control system and autoclave (15); autoclave (15) is arranged in temperature control system and is connected with control pressurer system; the gaseous tension in autoclave (15) is controlled and monitored to control pressurer system, and temperature control system is for controlling and regulate the temperature of autoclave (15).
3. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 2, it is characterized in that, control pressurer system comprises gas cylinder (16), pressure generating equipment (17) and pressure transducer (18), and gas cylinder (16) is successively by being communicated with in autoclave (15) after pressure transducer (18), pressure generating equipment (17).
4. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 2, it is characterized in that, be provided with temperature probe I (5) and temperature probe II (7) in autoclave (15), temperature probe I (5), temperature probe II (7) are separately positioned on the two ends up and down of autoclave (15), and temperature probe I (5), temperature probe II (7) are monitored in real time disposal system (IV) with parameter respectively and be connected.
5. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 3, it is characterized in that, temperature control system comprises chuck (14) and water bath (19), chuck (14) is provided with inside and outside two-layer, water bath (19) is arranged between inside and outside two-layer chuck (14), the external constant-temperature circulating device of water bath (19) (13), autoclave (15) is arranged in the chuck (14) of internal layer.
6. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 2, it is characterized in that, hydraulic system (III) is arranged on the lid on autoclave (15) top, hydraulic system (III) comprises four-way check valve (6), reversal valve (8), pressure unit (9) and manual liquid pump (11), reversal valve (8) is connected with four-way check valve (6), manual liquid pump (11) respectively, and four-way check valve (6) connects respectively four the solid-state filtrators (3) that are arranged on the interior differing heights of autoclave (15).
7. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 2, it is characterized in that, the Raman spectrum detection system comprises laser Raman spectrometer (2), optical fiber (1), optic probe (10) and surveys storehouse (12), laser Raman spectrometer (2) connects optic probe (10) by optical fiber (1), optic probe (10) is connected with detection storehouse (12), optic probe (10) is arranged on the lid on autoclave (15) top, surveys storehouse (12) and is arranged in autoclave (15).
8. hydrate Geochemical Parameters in-situ investigation simulation system in abyssal sediment according to claim 2, is characterized in that, parameter is monitored in real time disposal system (IV) and adopted computing machine (4).
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215622A (en) * | 2013-06-05 | 2014-12-17 | 青岛海洋地质研究所 | In-situ detection stimulation system for geochemical parameters of hydrates in abyssal deposits |
| CN104215483A (en) * | 2014-08-25 | 2014-12-17 | 浙江大学 | Deep-sea sediment pressure-maintaining sampling and transferring device and application method thereof |
| CN105372392A (en) * | 2015-10-30 | 2016-03-02 | 中国科学院力学研究所 | Simulation experiment device for methane gas leakage caused by natural gas hydrate decomposition |
| CN108645878A (en) * | 2018-05-24 | 2018-10-12 | 大连理工大学 | Sea bed gas hydrate core original position pressurize CT reaction kettle devices |
| CN109777731A (en) * | 2019-02-22 | 2019-05-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Deep-sea hydrothermal port extreme environment simulation system |
| CN110394202A (en) * | 2019-08-21 | 2019-11-01 | 深圳市鼎海新材料技术有限公司 | A kind of test device for the simulation deep sea low temperature ultra-high voltage environment that can be observed in real time |
| US11187691B2 (en) * | 2018-03-05 | 2021-11-30 | Zhejiang University | Pressure-control temperature-control hypergravity experimental device for simulating deep-sea seabed responses |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104215622A (en) * | 2013-06-05 | 2014-12-17 | 青岛海洋地质研究所 | In-situ detection stimulation system for geochemical parameters of hydrates in abyssal deposits |
| CN104215622B (en) * | 2013-06-05 | 2016-08-24 | 青岛海洋地质研究所 | Hydrate Geochemical Parameters in-situ investigation analog systems in halmeic deposit |
| CN104215483A (en) * | 2014-08-25 | 2014-12-17 | 浙江大学 | Deep-sea sediment pressure-maintaining sampling and transferring device and application method thereof |
| CN104215483B (en) * | 2014-08-25 | 2017-02-22 | 浙江大学 | Deep-sea sediment pressure-maintaining sampling and transferring device and application method thereof |
| CN105372392A (en) * | 2015-10-30 | 2016-03-02 | 中国科学院力学研究所 | Simulation experiment device for methane gas leakage caused by natural gas hydrate decomposition |
| CN105372392B (en) * | 2015-10-30 | 2017-02-15 | 中国科学院力学研究所 | Simulation experiment device for methane gas leakage caused by natural gas hydrate decomposition |
| US11187691B2 (en) * | 2018-03-05 | 2021-11-30 | Zhejiang University | Pressure-control temperature-control hypergravity experimental device for simulating deep-sea seabed responses |
| CN108645878A (en) * | 2018-05-24 | 2018-10-12 | 大连理工大学 | Sea bed gas hydrate core original position pressurize CT reaction kettle devices |
| CN108645878B (en) * | 2018-05-24 | 2020-07-24 | 大连理工大学 | Submarine natural gas hydrate core in-situ pressure maintaining CT reaction kettle device |
| CN109777731A (en) * | 2019-02-22 | 2019-05-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Deep-sea hydrothermal port extreme environment simulation system |
| CN109777731B (en) * | 2019-02-22 | 2021-04-06 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Extreme environment simulation system for deep sea hot liquid port |
| CN110394202A (en) * | 2019-08-21 | 2019-11-01 | 深圳市鼎海新材料技术有限公司 | A kind of test device for the simulation deep sea low temperature ultra-high voltage environment that can be observed in real time |
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Granted publication date: 20131204 Termination date: 20150605 |
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