CN204008567U - Containing generation and the acoustic-electric characteristic test integrated apparatus of gas hydrate rock sample - Google Patents
Containing generation and the acoustic-electric characteristic test integrated apparatus of gas hydrate rock sample Download PDFInfo
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- CN204008567U CN204008567U CN201420375568.7U CN201420375568U CN204008567U CN 204008567 U CN204008567 U CN 204008567U CN 201420375568 U CN201420375568 U CN 201420375568U CN 204008567 U CN204008567 U CN 204008567U
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Abstract
The utility model discloses a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample, it is characterized in that, comprise generating apparatus and acoustic-electric characteristic test device, described generating apparatus comprise the sodium chloride solution for holding low mineralization fluid reservoir, vacuum pump, the first pressure gauge, the second pressure gauge, the gas cylinder of pure methane is housed, for holding core container, temperature control bath, refrigeration system and the force (forcing) pump of plunger rock sample; Described acoustic-electric characteristic test device comprises pinger, resistivity meter, oscillograph, first sound Electricity Federation probing head and second sound Electricity Federation probing head, and first sound Electricity Federation probing head and second sound Electricity Federation probing head are connected to the both sides of core container.The utility model can generate the rock sample that contains gas hydrate, and can realize acoustic velocity and resistivity dynamic monitoring under Simulating Multiphase fluid state.
Description
Technical field
The utility model relates to a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample, belongs to gas hydrate rock physics experimental design field.
Background technology
Gas hydrate are the class ice crystal compounds that are made up of water and rock gas under-fixed condition.The gas hydrate of finding at present are mainly composed and are stored among the marine bottom sediment in neritic shelf Lu Po district and the various clastic sediment holes of Frozen Ground Area, polar region.Axle shape, stratiform, little acicular crystals or the disperseds such as the gas hydrate that nature is found are white in color more, faint yellow, amber, crineous, minute quantity occurs with piece stratiform.Hydrate chemical composition is unstable, under the condition of heating or step-down, easily decomposes; Its chemical formula can be used Mn
represent, M is the gas molecule in hydrate, and n is water molecule number.M can be as CH
4, C
2h
6, C
3h
8, C
4h
10deng homologous compound, and CO
2, N
2, H
2s single gas of planting wherein, also can mix for multiple gases.From existing data, the gas in occurring in nature hydrate is mainly methane.Say that from structural chemistry gas hydrate is exactly the cage structure thing of methane and water.Up to the present, the gas hydrate that have been found that have four kinds of molecular structures: structure I type: being formed at biogenetic gas, is mainly the methane gas of lightweight; Structure II type: be formed at pyrolysis gas, taking slightly heavy propane and butane as main; H type: formed by heavier hydrocarbon; In addition be a kind of novel hydrate, generated by biomolecule and hydrone.Mostly be the thicker rock of particle containing the sedimentary formation of hydrate, it is cementing more loose, and larger containing flour sand or shale, factor of porosity, formation water salinity is lower, and sediment mostly is and has formed since Miocene Period.
At present, the mankind to the research of gas hydrate still in the laboratory simulation stage.The most complex structure of generation simulator of gas hydrate rock sample, cost is high, the comparatively trouble that operates, and also the rock sample that can not generate simulation carries out the test of acoustic-electric characteristic.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample, there is complex structure in the generation simulator that is intended to solve existing gas hydrate rock sample, troublesome poeration, can not carry out the problems such as the test of acoustic-electric characteristic to rock sample.
The technical solution of the utility model is as follows:
A kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample, comprise generating apparatus and acoustic-electric characteristic test device, described generating apparatus comprises the fluid reservoir of the sodium chloride solution for holding low mineralization, vacuum pump, the first pressure gauge, the second pressure gauge, the gas cylinder of pure methane is housed, for holding the core container of plunger rock sample, temperature control bath, refrigeration system and force (forcing) pump, fluid reservoir connects core container by liquid transmission pipeline, core container connects respectively vacuum pump, force (forcing) pump and the first pressure gauge, on fluid reservoir, be provided with stirrer, fluid reservoir connects respectively vacuum pump, gas cylinder and second pressure gauge of pure methane are housed, core container is placed in temperature control bath, temperature control bath connects refrigeration system, described acoustic-electric characteristic test device comprises pinger, resistivity meter, oscillograph, first sound Electricity Federation probing head and second sound Electricity Federation probing head, first sound Electricity Federation probing head and second sound Electricity Federation probing head are connected to the both sides of core container, and first sound Electricity Federation probing head, second sound Electricity Federation probing head are respectively by connection pinger, resistivity meter and oscillograph.
Preferably, described second sound Electricity Federation probing head is gone back connection traffic meter.
Preferably, described core container is cylindrical, comprises housing, on housing top, upper piston is set, and in lower housing portion, lower piston is set, and is provided with fluid inlet hole on upper piston, is provided with fluid and portals on lower piston.
Preferably, between described upper piston and housing, be provided with annular strip of paper used for sealing, between described lower piston and housing, be provided with lower annular strip of paper used for sealing.
Beneficial effect: the utility model can generate the rock sample that contains gas hydrate, and can realize acoustic velocity and the resistivity dynamic monitoring under Simulating Multiphase fluid state, for fluid saturation and sound wave, the isoparametric relation of resistivity in the generation of research oil gas, migration and recovery process provide theoretical foundation, and apparatus structure is simple, operate comparatively easy, cost is also lower.
Brief description of the drawings
Fig. 1 is structural principle schematic diagram of the present utility model.
Fig. 2 is the structural representation of core container.
Embodiment
The utility model provides a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample, for making the purpose of this utility model, technical scheme and effect clearer, clear and definite, below the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Containing generation and the acoustic-electric characteristic test integrated apparatus of gas hydrate rock sample, comprise generating apparatus and acoustic-electric characteristic test device.Described generating apparatus comprises fluid reservoir 1, vacuum pump 2, the first pressure gauge 3, the second pressure gauge 4, the gas cylinder 5 that pure methane is housed, core container 6, temperature control bath 7, refrigeration system 8 and force (forcing) pump 9.Core container 6 is for holding plunger rock sample 12, and the diameter of core container 6 should be slightly larger than plunger rock sample diameter, and preferably the diameter of core container 6 and the diameter ratio of plunger rock sample are 1.2.Fluid reservoir 1 is for holding the sodium chloride solution of low mineralization, and the bottom of fluid reservoir 1 is communicated with core container 6 by liquid line 10.Core container 6 connects respectively vacuum pump 2, force (forcing) pump 9 and the first pressure gauge 3.Fluid reservoir 1 connects respectively vacuum pump 2, gas cylinder 5 and second pressure gauge 4 of pure methane is housed, and is provided with stirrer 11 on fluid reservoir 1.Core container 6 is placed in temperature control bath 7, and temperature control bath 7 connects refrigeration system 8.Described acoustic-electric characteristic test device comprises pinger 13, resistivity meter 14, oscillograph 15, the probing of first sound Electricity Federation 16 and the probing of second sound Electricity Federation 17, first sound Electricity Federation probing 16 and the probing of second sound Electricity Federation 17 is connected to the both sides of core container 6, and first sound Electricity Federation probing 16, the probing of second sound Electricity Federation 17 is respectively by connection pinger 13, resistivity meter 14 and oscillograph 15.Connection traffic meter 18 is gone back in second sound Electricity Federation probing 17.
Core container 6 is cylindrical, comprises housing 601, on housing 601 tops, upper piston 602 is set, and in housing 601 bottoms, lower piston 603 is set, and is provided with fluid inlet hole on upper piston 602, is provided with fluid and portals on lower piston 603.Between upper piston 602 and housing 601, be provided with annular strip of paper used for sealing 604, between lower piston 603 and housing 601, be provided with lower annular strip of paper used for sealing 605.Housing 601 is made up of high pressure resistant material.
Utilize said apparatus to generate the method containing gas hydrate rock sample, comprise the following steps:
A chooses the dirty sandstone plunger sample with Higher porosity, before experiment, first it is carried out to the desalinization of soil by flooding or leaching, drying and processing, and this is because the generation of hydrate is subject to the impact of blowhole size, is easy to form in compared with macropore; Then plunger rock sample after treatment is put in core container 6.
B preparation has the sodium chloride solution compared with low mineralization, and solution is poured in fluid reservoir 1.
C adopts vacuum pump 2 to vacuumize processing to fluid reservoir 1 and core container 6.
D injects methane gas by gas cylinder 5 in fluid reservoir 1, and constantly stirs with stirrer 11, makes saturated methane gas in sodium chloride solution, until when pressure no longer changes in fluid reservoir 1, stop gas injection.
The sodium chloride solution of saturated methane gas in fluid reservoir 1 is injected core container 6 by e, and it is constantly pressurizeed with force (forcing) pump 9, until core container 6 internal pressures keep stablizing, shows that plunger rock sample is by fully saturated.
F opens refrigeration system 8, by temperature control bath 7, core container 6 is lowered the temperature, and in this process, continues by force (forcing) pump 9, core container 6 to be pressurizeed, and to keep the stable of cylinder pressure, and ensures that plunger rock sample is in state of saturation.
Along with the continuous reduction of temperature, in plunger rock sample, will there is hydrate to generate, in the time that the pressure in core container 6 no longer changes, stop cooling and pressurization, obtain the plunger rock sample containing gas hydrate.
After generating, rock sample can carry out acoustic-electric characteristic test to it by pinger 13, resistivity meter 14 and oscillograph 15, the probing of first sound Electricity Federation 16 and the probing of second sound Electricity Federation 17.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. generation and acoustic-electric characteristic test integrated apparatus containing a gas hydrate rock sample, it is characterized in that, comprise generating apparatus and acoustic-electric characteristic test device, described generating apparatus comprises the fluid reservoir of the sodium chloride solution for holding low mineralization, vacuum pump, the first pressure gauge, the second pressure gauge, the gas cylinder of pure methane is housed, for holding the core container of plunger rock sample, temperature control bath, refrigeration system and force (forcing) pump, fluid reservoir connects core container by liquid transmission pipeline, core container connects respectively vacuum pump, force (forcing) pump and the first pressure gauge, on fluid reservoir, be provided with stirrer, fluid reservoir connects respectively vacuum pump, gas cylinder and second pressure gauge of pure methane are housed, core container is placed in temperature control bath, temperature control bath connects refrigeration system, described acoustic-electric characteristic test device comprises pinger, resistivity meter, oscillograph, first sound Electricity Federation probing head and second sound Electricity Federation probing head, first sound Electricity Federation probing head and second sound Electricity Federation probing head are connected to the both sides of core container, and first sound Electricity Federation probing head, second sound Electricity Federation probing head are respectively by connection pinger, resistivity meter and oscillograph.
2. a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample according to claim 1, is characterized in that, described second sound Electricity Federation probing head is gone back connection traffic meter.
3. a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample according to claim 1, it is characterized in that, described core container is cylindrical, comprise housing, on housing top, upper piston is set, in lower housing portion, lower piston is set, on upper piston, is provided with fluid inlet hole, on lower piston, be provided with fluid and portal.
4. a kind of generation and acoustic-electric characteristic test integrated apparatus containing gas hydrate rock sample according to claim 3, it is characterized in that, between described upper piston and housing, be provided with annular strip of paper used for sealing, between described lower piston and housing, be provided with lower annular strip of paper used for sealing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420375568.7U CN204008567U (en) | 2014-07-08 | 2014-07-08 | Containing generation and the acoustic-electric characteristic test integrated apparatus of gas hydrate rock sample |
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|---|---|---|---|
| CN201420375568.7U CN204008567U (en) | 2014-07-08 | 2014-07-08 | Containing generation and the acoustic-electric characteristic test integrated apparatus of gas hydrate rock sample |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004837A (en) * | 2015-06-26 | 2015-10-28 | 中国科学院力学研究所 | Natural gas hydrate sediment multi-measurement unit analysis method and integrated system |
| CN106226139A (en) * | 2016-08-29 | 2016-12-14 | 中国地质大学（北京） | The synthesis of hydrate and monitoring method in a kind of permafrost region consolidated rock sample |
| CN109298157A (en) * | 2018-07-17 | 2019-02-01 | 西南石油大学 | It is a kind of detect methane hydrate acoustic-electric mechanical characteristic pressure cabin and application method |
-
2014
- 2014-07-08 CN CN201420375568.7U patent/CN204008567U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004837A (en) * | 2015-06-26 | 2015-10-28 | 中国科学院力学研究所 | Natural gas hydrate sediment multi-measurement unit analysis method and integrated system |
| CN106226139A (en) * | 2016-08-29 | 2016-12-14 | 中国地质大学（北京） | The synthesis of hydrate and monitoring method in a kind of permafrost region consolidated rock sample |
| CN106226139B (en) * | 2016-08-29 | 2018-11-23 | 中国地质大学（北京） | The synthesis and monitoring method of hydrate in a kind of permafrost region consolidated rock sample |
| CN109298157A (en) * | 2018-07-17 | 2019-02-01 | 西南石油大学 | It is a kind of detect methane hydrate acoustic-electric mechanical characteristic pressure cabin and application method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150708 |
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| EXPY | Termination of patent right or utility model |