CN1317557C - Simulating device for geophyscical gas hydrate - Google Patents
Simulating device for geophyscical gas hydrate Download PDFInfo
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- CN1317557C CN1317557C CNB200410036544XA CN200410036544A CN1317557C CN 1317557 C CN1317557 C CN 1317557C CN B200410036544X A CNB200410036544X A CN B200410036544XA CN 200410036544 A CN200410036544 A CN 200410036544A CN 1317557 C CN1317557 C CN 1317557C
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- saturation water
- gas hydrate
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Abstract
The present invention relates to a geophysical exploration simulator of gas hydrates, which comprises a high-pressure reaction vessel used for placing cores, an ultrasonic detector and a cooler, wherein a time domain reflection detection device is arranged in the high-pressure reaction vessel, and the time domain reflection detection device comprises a time domain reflection detector and a TDR probe. When the geophysical exploration simulator of gas hydrates of the present invention is adopted, saturation of gas hydrates and acoustic characteristic parameters in cores can be detected at the same time in the same device.
Description
Technical field
The present invention relates to the geophysical exploration analogue means, relate in particular to a kind of geophysical exploration analogue means of surveying the core gas hydrate.
Background technology
In geophysical probing technique, the estimation saturation degree of hydrate in the sediment hole with and and acoustic characteristic between relation be the important research content of gas hydrate geophysical exploration.03268815 utility model patent that on September 1st, 2004 was announced, a kind of landwaste acoustic velocity measurement mechanism is disclosed, it comprises supersonic reflectoscope, and it transmitting and receiving the upper and lower surface that probe is connected to core by the probe that transmits and receives of lead connection sound wave.In order to survey the saturation degree of hydrate in the sediment hole, the someone had proposed the Time Domain Reflectometry detection technique in recent years, and it comprises the Time Domain Reflectometry pick-up unit, and the TDR probe of this device is connected with core by metal.Existing sniffer or have only the supersonic sounding technology, has only the Time Domain Reflectometry detection technique, the result that single Detection Techniques detect produces deviation probably, can't accurately understand the correlativity between gas hydrate saturation degree and its acoustics parameters, and the result is difficult to mutual evidence.In addition, in sniffer, adopt the form of gaseous diffusion to make the gas in the core pore water saturated gradually, the time of being consumed is several weeks, even more than one month, has oversize problem experimental period.
Summary of the invention
The present invention designs in order to overcome above-mentioned defective, and one of its purpose provides a kind of geophysical exploration analogue means that can survey hydrate saturation degree and acoustic characteristic in the sediment, reduction experimental error simultaneously.
Two of purpose of the present invention is that a kind of geophysical exploration analogue means that shortens experimental period is provided simultaneously.
In order to reach the foregoing invention purpose, the present invention includes the autoclave, supersonic reflectoscope and the cooling device that are used to place core, wherein supersonic reflectoscope comprises ultrasonic emitting and the receiving transducer that lead connects, this probe is positioned at autoclave, autoclave is positioned at the temperature control bath of cooling device, and wherein supersonic reflectoscope connects computer processor unit; The Time Domain Reflectometry pick-up unit is set in autoclave, this device connects computer processor unit, and this Time Domain Reflectometry pick-up unit comprises Time Domain Reflectometry detector and TDR probe, and this TDR probe has two, core central authorities that insert the autoclave inner core, another is a becket.
The inner core of being made by nonmetallic materials is set in the autoclave, and these nonmetallic materials can be teflon.At inner core inwall middle part draw-in groove is set, the corresponding embedding in this draw-in groove of described metal ring type TDR probe.
The described ultrasonic probe of this gas hydrate geophysical exploration analogue means is ripple integrated probe in length and breadth, and upper shed place that is positioned at inner core is in another embeds in the preformed hole of tube bottom.Thermocouple temperature sensor and the pressure transducer that links to each other with computer processor unit is set in autoclave; The thermopair of temperature sensor is arranged on the sidewall of inner core.
To achieve the above object of the invention, the present invention also comprises saturation water preparation facilities and gas pressue device, wherein between gas boosting device and saturation water preparation facilities and the autoclave, be connected by pipeline respectively between saturation water preparation facilities and the autoclave.
Described saturation water preparation facilities comprises that saturation water prepares still, magnetic stirring apparatus, thermocouple temperature sensor and pressure transducer, wherein saturation water prepares still and is communicated with autoclave by pipeline, valve is set on the pipeline, and the position that saturation water prepares still is higher than autoclave; The top that saturation water prepares still is provided with water inlet pipe and valve, and the bottom that saturation water prepares still is magnetic stirring apparatus fixedly; The thermocouple temperature sensor links to each other with computer processor unit with pressure transducer.The gas boosting device is communicated with saturation water respectively by three-way pipe and prepares still and autoclave, and three-way pipe and saturation water prepare valve is set respectively between still and the autoclave.
Adopt the gas hydrate geophysical exploration analogue means of this structure, can in same device, survey gas hydrate saturation degree and acoustics parameters in the core simultaneously, adopt gas saturation water technology of preparing simultaneously, it is few that whole experiment consumes the time, can shorten experimental period greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
1. gas boosting device; 2. cooling device; 3. computer processor unit; 4. temperature control bath; 5. saturation water prepares still; 6. autoclave; 7. inner core; 8. supersonic reflectoscope; 9. Time Domain Reflectometry detector; 10. pressure transducer; 11. temperature sensor; 12. ripple integrative ultrasonic ripple transmitting probe in length and breadth; 13. ripple integrative ultrasonic ripple receiving transducer in length and breadth; 14. thermopair; 15. thermopair; 16. core sample; 17. magnetic stirring apparatus; 18. metal ring type TDR probe; 19.TDR probe; 21. valve; 22. valve; 23. valve; 24. valve; 25. valve;
Embodiment
See Fig. 1,2, the present invention includes the autoclave 6, ultrasonic detection device, Time Domain Reflectometry pick-up unit, pressure transducer 10, temperature sensor 11, computer processor unit 3, cooling device 2, saturation water preparation facilities and the gas pressue device 1 that are used to place core, wherein the Time Domain Reflectometry pick-up unit comprises Time Domain Reflectometry detector 9 and two TDR probe 18,19, and ultrasonic detection device comprises supersonic reflectoscope 8 and ripple integrative ultrasonic ripple transmitting probe 12, receiving transducer 13 in length and breadth.Supersonic reflectoscope 8 all is connected with computer processor unit 3 with Time Domain Reflectometry detector 9, and autoclave is positioned at the temperature control bath 4 of cooling device, and the saturation water preparation facilities is connected with autoclave by pipeline with gas pressue device 1.Supersonic reflectoscope 8 and Time Domain Reflectometry detector 9 both can a shared cover computer processor unit, also can connect computer processor unit separately respectively.
The inner core of being made by teflon 7 is set in autoclave, it can realize contacting with the tight of sediment core, inner core inwall middle part is provided with draw-in groove, and described metal ring type TDR probe embeds in this draw-in groove, the core central authorities that another probe 19 inserts inner core; The described integrative ultrasonic of ripple in length and breadth ripple transmitting probe 12 is positioned at upper shed place of inner core, and ripple integrative ultrasonic ripple receiving transducer 13 embeds in the preformed hole of interior tube bottom in length and breadth.Thermocouple temperature sensor 11 and the pressure transducer 10 that links to each other with computer processor unit is set in autoclave; The thermopair 14,15 of temperature sensor is arranged on the sidewall of inner core.
Said structure can be implemented in the purpose of surveying gas hydrate saturation degree and acoustics parameters in the core in the same device simultaneously, thereby has effectively avoided the experimental error under the different experiments environment.
Saturation water preparation facilities of the present invention comprises that saturation water prepares still 5, magnetic stirring apparatus 17, thermocouple temperature sensor 11 and pressure transducer 10, wherein saturation water prepares still 5 and is communicated with autoclave 6 by pipeline, valve 24,25 is set on the pipeline, and the position that saturation water prepares still is higher than autoclave; Open valve 25, saturated aqueous solution injects in the autoclave by gravity.The top that saturation water prepares still is provided with water inlet pipe and valve 21, and magnetic stirring apparatus 17 is fixed on the bottom that saturation water prepares still; Thermocouple temperature sensor 11 links to each other with computer processor unit 3 with pressure transducer 10.The gas boosting device is communicated with saturation water respectively by three-way pipe and prepares still 5 and autoclave 6, and three-way pipe and saturation water prepare valve 22,23 is set respectively between still and the autoclave.Adopt this gas saturation water technology of preparing, can shorten experimental period greatly.
The course of work of the present invention is such, at first open autoclave 6 top covers, the core sample of being surveyed 16 is placed in the inner core 7 of autoclave, make it to closely cooperate with inner core, central authorities at core sample punching, then one of TDR probe that is connected with the Time Domain Reflectometry detector 19 is put into the medium pore of core sample 16, another lead fixed that will be connected with the Time Domain Reflectometry detector closes the autoclave top cover then on metal ring type TDR probe 18.Open valve 21, valve-off 25 injects valve-off 21 behind an amount of water.Open valve 22 and 24 prepares still 5 with saturation water and autoclave 6 is evacuated.Open valve 23 again, feed gas to certain pressure, and valve-off 22,23,24 starts magnetic stirring apparatus 17, and air water is fully contacted.Because gas dissolving is in aqueous solution, cause pressure to descend, said process no longer descends until pressure and makes saturated aqueous solution repeatedly.Open valve 25, saturated aqueous solution injects inner core 7 by gravity, soaks into valve-off 25 fully until core sample 16.Start cooling device 2 liquid are lowered the temperature gradually, start supersonic reflectoscope and Time Domain Reflectometry pick-up unit simultaneously, gather the data of the parameter of surveying in real time and handle by computer processing unit.According to requirement of experiment, the temperature and time that heats up and lower the temperature in the control temperature control bath 4.
Claims (10)
1. gas hydrate geophysical exploration analogue means, it comprises autoclave, supersonic reflectoscope and the cooling device that is used to place core, wherein supersonic reflectoscope comprises sound wave emissions and the receiving transducer that lead connects, this probe is positioned at autoclave, autoclave is positioned at the temperature control bath of cooling device, it is characterized in that, supersonic reflectoscope connects computer processor unit, the Time Domain Reflectometry pick-up unit is set in autoclave, and this device connects computer processor unit.
2. gas hydrate geophysical exploration analogue means according to claim 1 is characterized in that, the Time Domain Reflectometry pick-up unit comprises Time Domain Reflectometry detector and TDR probe, and this TDR probe is positioned at autoclave.
3. gas hydrate geophysical exploration analogue means according to claim 2 is characterized in that, the TDR probe of Time Domain Reflectometry pick-up unit has two, core central authorities that insert the autoclave inner core, and another is a becket.
4. gas hydrate geophysical exploration analogue means according to claim 3 is characterized in that be provided for placing the inner core of core in the autoclave, it is made by nonmetallic materials, and the metal ring type probe of TDR is positioned on the inner core inwall.
5. gas hydrate geophysical exploration analogue means according to claim 4 is characterized in that inner core made by teflon, at the inwall middle part of inner core annular slot is set, and becket embeds in this draw-in groove.
6. gas hydrate geophysical exploration analogue means according to claim 1 is characterized in that, ultrasonic probe is ripple integrated probe in length and breadth, and upper shed place that is positioned at inner core is in another embeds in the preformed hole of tube bottom.
7. gas hydrate geophysical exploration analogue means according to claim 1 is characterized in that, thermocouple temperature sensor and the pressure transducer that links to each other with computer processor unit is set in autoclave; The thermopair of temperature sensor is arranged on the sidewall of inner core.
8. gas hydrate geophysical exploration analogue means according to claim 1, it is characterized in that, it also comprises saturation water preparation facilities and gas pressue device, wherein between gas boosting device and saturation water preparation facilities and the autoclave, be connected by pipeline respectively between saturation water preparation facilities and the autoclave.
9. gas hydrate geophysical exploration analogue means according to claim 8, it is characterized in that, the saturation water preparation facilities comprises that saturation water prepares still, magnetic stirring apparatus, thermocouple temperature sensor and pressure transducer, wherein saturation water prepares still and is communicated with autoclave by pipeline, valve is set on the pipeline, and the position that saturation water prepares still is higher than autoclave; The top that saturation water prepares still is provided with water inlet pipe and valve, and the bottom that saturation water prepares still is magnetic stirring apparatus fixedly; The thermocouple temperature sensor links to each other with computer processor unit with pressure transducer.
10. gas hydrate geophysical exploration analogue means according to claim 8, it is characterized in that, the gas boosting device is communicated with saturation water respectively by three-way pipe and prepares still and autoclave, and three-way pipe and saturation water prepare valve is set respectively between still and the autoclave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200410036544XA CN1317557C (en) | 2004-11-30 | 2004-11-30 | Simulating device for geophyscical gas hydrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410036544XA CN1317557C (en) | 2004-11-30 | 2004-11-30 | Simulating device for geophyscical gas hydrate |
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| CN1614409A CN1614409A (en) | 2005-05-11 |
| CN1317557C true CN1317557C (en) | 2007-05-23 |
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| CNB200410036544XA Expired - Fee Related CN1317557C (en) | 2004-11-30 | 2004-11-30 | Simulating device for geophyscical gas hydrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042947A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Natural gas hydrate permeability simulation experimental device |
| CN102042948A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Device for testing hydrate acoustic properties |
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| US9519072B2 (en) | 2006-05-11 | 2016-12-13 | Schlumberger Technology Corporation | Method and apparatus for locating gas hydrate |
| CN102052065A (en) * | 2010-07-01 | 2011-05-11 | 青岛海洋地质研究所 | Simulation exploiting experiment device for natural gas hydrate |
| CN102042995A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Gas hydrate thermophysical property simulation experiment device |
| CN101936833B (en) * | 2010-07-21 | 2012-07-18 | 中国海洋石油总公司 | Device and method for simulating generation of gas hydrate and measuring physical property parameters thereof |
| CN102539521B (en) * | 2010-12-08 | 2014-03-12 | 中国海洋石油总公司 | Natural gas hydrate and drilling fluid interaction simulation test device |
| CN103424532B (en) * | 2012-05-22 | 2016-04-20 | 青岛海洋地质研究所 | Containing the experimental provision of hydrate sediment velocities cross-section structure characteristic research |
| CN103424182B (en) * | 2012-05-22 | 2015-10-28 | 青岛海洋地质研究所 | The acoustic response characteristics analogue experiment installation of receive gas migration and gas hydrate synthesis |
| CN103698397B (en) * | 2012-09-27 | 2015-11-18 | 中国石油化工股份有限公司 | A kind of quantitatively contact ultrasonic wave detecting system and detection method thereof |
| CN103470220B (en) * | 2013-08-20 | 2015-12-02 | 中国石油天然气股份有限公司 | Natural gas hydrate simulation experiment device |
| CN105334547B (en) * | 2015-09-23 | 2017-06-16 | 中国石油大学(华东) | Gas hydrate simulated experiment test system in a kind of porous media |
| US9897529B2 (en) | 2015-09-23 | 2018-02-20 | China University Of Petroleum (East China) | Test system and test method for a simulation experiment of gas hydrate in a porous medium |
| CN108776174A (en) * | 2018-05-24 | 2018-11-09 | 大连理工大学 | A kind of screw type acoustic measurement barge unit of core |
| CN109270577A (en) * | 2018-11-12 | 2019-01-25 | 广州冷聚变电力科技有限公司 | A kind of combustible ice diving detection device |
| CN109540974B (en) * | 2018-12-10 | 2019-11-05 | 青岛海洋地质研究所 | Hydrate core sample test macro and its application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042947A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Natural gas hydrate permeability simulation experimental device |
| CN102042948A (en) * | 2010-07-01 | 2011-05-04 | 青岛海洋地质研究所 | Device for testing hydrate acoustic properties |
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| CN1614409A (en) | 2005-05-11 |
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