CN109613112B - Online coring test system for hydrate sedimentary layer - Google Patents
Online coring test system for hydrate sedimentary layer Download PDFInfo
- Publication number
- CN109613112B CN109613112B CN201811248195.6A CN201811248195A CN109613112B CN 109613112 B CN109613112 B CN 109613112B CN 201811248195 A CN201811248195 A CN 201811248195A CN 109613112 B CN109613112 B CN 109613112B
- Authority
- CN
- China
- Prior art keywords
- module
- ultrasonic
- plug
- kettle body
- hydrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to an online coring test system for a hydrate deposit layer, which is characterized in that: the device comprises a test kettle, a refrigeration chamber, a gas injection mechanism, a liquid injection mechanism, a power module, a sampling module and an ultrasonic module; the test kettle can generate hydrate deposit layers with different properties under the conditions of multiple temperatures, pressures and saturation, and two groups of ultrasonic probes are adopted, so that the generated hydrate deposit layers can be subjected to non-contact ultrasonic detection and analysis, and the generated hydrate deposit layers can be sampled to be subjected to contact ultrasonic detection and analysis; the testing system can test detailed data of hydrate deposition layers generated under different conditions, the testing process is more stable under the conditions of pressure maintaining and heat preservation, and the testing data accuracy is higher.
Description
Technical Field
The invention relates to the field of energy test detection, in particular to an online coring test system for a hydrate deposit layer.
Background
Natural gas hydrate deposits are a significant source of methane in the world, are deep-buried in the seafloor, and are potentially hazardous due to their instability and methane release, a process that may be caused by seafloor slope instability, seafloor facilities, and global changes. At present, the knowledge of the physical properties of hydrate deposits is mainly obtained by theoretical research on experiments of pure hydrates and observation and field measurement of limited hydrate cores. Therefore, there is a need to further understand the nature and stability of hydrate deposits.
The study of the instability of natural gas hydrate deposits under natural environmental conditions requires specialized laboratory studies. The techniques for obtaining hydrate samples, typically by pressure coring techniques, and for transporting the containers with the samples on board the ship have greatly advanced the art to achieve these objectives, requiring that the natural characteristics of the gas hydrates and the nature of the gas hydrates compressed within the sample be as clear as possible before depressurisation, opening of the containers or repeated sampling. The ability to describe the petrophysical properties of gas hydrates within a pressure core barrel provides a way to describe their physical nature and non-nature.
For this purpose, a certain amount of synthetic gas hydrate morphology was prepared in the laboratory in the deposition range for on-line coring testing, which would enable the classification and characterization of hydrate samples. When geophysical simulation analysis is conducted on the characteristics of the hydrates, guidance can be provided for the sampling process before pressure relief and separation, the use of rare and precious core samples can enable scientific work plans on ships to be more thorough, the analysis data can provide a better basis for geophysical characteristic analysis of hydrate deposits, the accuracy of geological exploration data is improved, undisturbed hydrate formations can be better evaluated, and the analysis data can provide more accurate data for evaluating the stability of the hydrate formations and the effects of the hydrate formations on environmental changes.
Disclosure of Invention
The invention aims to provide an online coring test system for a hydrate deposit layer, and solves the problem that the hydrate deposit layer cannot be tested in a timely and stable continuous contact manner when the hydrate deposit layer is generated online.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a hydrate sedimentary deposit online coring test system which innovation point lies in: the device comprises a test kettle, a refrigeration chamber, a gas injection mechanism, a liquid injection mechanism, a power module, a sampling module and an ultrasonic module;
the test kettle is arranged in the refrigerating chamber and comprises a kettle body, an upper end plug, a lower end plug and a side plug; the kettle body is of a cylindrical structure, a pair of side plug mounting holes are formed in the side edge of the kettle body in a 180-degree mode, the upper end plug and the lower end plug are respectively arranged at the upper end and the lower end of the kettle body, and the side plugs are mounted on the side plug mounting holes; the upper end plug is provided with a gas injection flow channel, a liquid injection flow channel and a sampling through hole, the gas injection flow channel is connected to the gas injection mechanism, the liquid injection flow channel is connected to the liquid injection mechanism, and the sampling module penetrates through the sampling channel of the upper end plug and extends into the kettle body; an ultrasonic module channel is horizontally arranged on the side plug, and the ultrasonic module passes through the ultrasonic module channel on the side plug and extends into the kettle body;
the power module is connected on sampling module and ultrasonic wave module, and power module drive ultrasonic wave module removes in the horizontal direction, and power module drive sampling module removes in vertical direction.
Furthermore, the power module comprises a driving motor, a speed reducer, a screw-nut pair, a guide rod, a sliding sleeve and a spiral encoder; the output end of the driving motor is connected to the speed reducer, the output end of the speed reducer is connected with a screw rod of the screw rod nut pair to drive the screw rod to rotate, and the screw rod nut pair penetrates through the spiral encoder to be connected with the sampling module or the ultrasonic module; one end of the guide rod is connected to the spiral encoder, and the other end of the guide rod is connected to the upper end plug or the side plug; the sliding sleeve is matched with the guide rod, a nut of the screw-nut pair is arranged on the sliding sleeve, and the nut of the screw-nut pair drives the sliding sleeve to reciprocate along the guide rod under the driving of the driving motor; the sampling module or the ultrasonic module is connected with the sliding sleeve.
Further, the gas injection mechanism comprises a high-pressure gas source, a pressure regulating valve and a quantitative cylinder; the high-pressure gas source and the pressure regulating valve are sequentially connected in series on the gas injection runner, and the quantitative cylinder is connected in parallel between the pressure regulating valve and the gas injection runner through a pipeline.
Further, annotate the liquid mechanism and include the priming pump, the priming pump passes through the pipe connection on the notes liquid runner of last end plug.
Furthermore, a plurality of saturation detection probes extending into the kettle body are arranged on the lower end plug, and the saturation detection probes are connected to a saturation tester through data lines.
Furthermore, be provided with first ultrasonic transducer on the ultrasonic wave module, be provided with second ultrasonic transducer on the outer wall of the cauldron body, first ultrasonic transducer and second ultrasonic transducer all connect on a sound wave data analyzer through the data line.
The invention has the advantages that:
1) the test kettle can generate hydrate deposit layers with different properties under the conditions of multiple temperatures, pressures and saturation, and two groups of ultrasonic probes are adopted, so that the generated hydrate deposit layers can be subjected to non-contact ultrasonic detection and analysis, and the generated hydrate deposit layers can be sampled to be subjected to contact ultrasonic detection and analysis; the testing system can test detailed data of hydrate deposition layers generated under different conditions, the testing process is more stable under the conditions of pressure maintaining and heat preservation, and the testing data accuracy is higher.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a three-dimensional structure diagram of an online coring test system for hydrate deposits according to the present invention.
Fig. 2 is a connection diagram of an online coring test system for hydrate deposits according to the present invention.
Fig. 3 is a cross-sectional view of an online coring test system for hydrate deposits in accordance with the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
The online coring test system for hydrate deposit layers as shown in fig. 1 to 3 comprises a test kettle 1, a refrigeration chamber 2, a gas injection mechanism 3, a liquid injection mechanism 4, a power module 5, a sampling module 6 and an ultrasonic module 7.
The test kettle 1 is arranged in the refrigerating chamber 2, and the test kettle 1 comprises a kettle body 11, an upper end plug 12, a lower end plug 13 and a side plug 14; the kettle body 11 is of a cylindrical structure, a pair of side plug mounting holes are formed in the side edge of the kettle body 11 in an angle of 180 degrees, the upper end plug 12 and the lower end plug 13 are respectively arranged at the upper end and the lower end of the kettle body 11, and the side plugs 14 are mounted on the side plug mounting holes; the upper end plug 12 is provided with a gas injection flow channel 15, a liquid injection flow channel 16 and a sampling through hole, the gas injection flow channel 15 is connected to the gas injection mechanism 3, the liquid injection flow channel 16 is connected to the liquid injection mechanism 4, and the sampling module 6 penetrates through the sampling channel of the upper end plug 12 and extends into the kettle body 11; an ultrasonic module channel is horizontally arranged on the side plug 14, and the ultrasonic module 7 penetrates through the ultrasonic module channel on the side plug 14 and extends into the kettle body 11.
The power module 5 is connected on the sampling module 6 and the ultrasonic module 7, the power module 5 drives the ultrasonic module 7 to move in the horizontal direction, and the power module 5 drives the sampling module 6 to move in the vertical direction.
The power module 5 comprises a driving motor 51, a speed reducer 52, a screw nut pair 53, a guide rod 54, a sliding sleeve 55 and a spiral encoder 56; the output end of the driving motor 51 is connected to the speed reducer 52, the output end of the speed reducer 52 is connected with the screw 531 of the screw nut pair 53 to drive the screw 531 to rotate, and the screw nut pair 53 passes through the spiral encoder 56 to be connected with the sampling module 6 or the ultrasonic module 7; one end of the guide rod 54 is connected to the spiral encoder 56, and the other end of the guide rod 54 is connected to the upper end plug 12 or the side plug 14; the sliding sleeve 55 is matched with the guide rod 54, a nut 532 of the screw-nut pair 53 is arranged on the sliding sleeve 55, and the nut 532 of the screw-nut pair 53 drives the sliding sleeve 55 to reciprocate along the guide rod 54 under the driving of the driving motor 51; the sampling module 6 or the ultrasonic module 7 is connected with the sliding sleeve 55.
The gas injection mechanism 3 comprises a high-pressure gas source 31, a pressure regulating valve 32 and a quantitative cylinder 33; the high-pressure gas source 31 and the pressure regulating valve 32 are sequentially connected in series on the gas injection flow channel 15, and the quantitative cylinder 33 is connected in parallel between the pressure regulating valve 32 and the gas injection flow channel 15 through a pipeline.
The liquid injection mechanism 4 comprises a liquid injection pump 41, and the liquid injection pump 41 is connected to the liquid injection flow passage 16 of the upper end plug 12 through a pipeline.
The lower end plug 13 is provided with a plurality of saturation detection probes 17 extending into the kettle body 11, and the saturation detection probes 17 are connected to a saturation tester 8 through data lines.
The ultrasonic wave module 7 is provided with a first ultrasonic probe 71, the outer wall of the kettle body 11 is provided with a second ultrasonic probe 72, and the first ultrasonic probe 71 and the second ultrasonic probe 72 are both connected to an acoustic data analyzer 9 through data lines.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a hydrate sedimentary deposit online coring test system which characterized in that: the device comprises a test kettle, a refrigeration chamber, a gas injection mechanism, a liquid injection mechanism, a power module, a sampling module and an ultrasonic module;
the test kettle is arranged in the refrigerating chamber and comprises a kettle body, an upper end plug, a lower end plug and a side plug; the kettle body is of a cylindrical structure, a pair of side plug mounting holes are formed in the side edge of the kettle body in a 180-degree mode, the upper end plug and the lower end plug are respectively arranged at the upper end and the lower end of the kettle body, and the side plugs are mounted on the side plug mounting holes; the upper end plug is provided with a gas injection flow channel, a liquid injection flow channel and a sampling through hole, the gas injection flow channel is connected to the gas injection mechanism, the liquid injection flow channel is connected to the liquid injection mechanism, and the sampling module penetrates through the sampling channel of the upper end plug and extends into the kettle body; an ultrasonic module channel is horizontally arranged on the side plug, and the ultrasonic module passes through the ultrasonic module channel on the side plug and extends into the kettle body;
the power module is connected to the sampling module and the ultrasonic module, drives the ultrasonic module to move in the horizontal direction, and drives the sampling module to move in the vertical direction;
the ultrasonic wave module is provided with a first ultrasonic probe, the outer wall of the kettle body is provided with a second ultrasonic probe, and the first ultrasonic probe and the second ultrasonic probe are connected to a sound wave data analyzer through data lines.
2. The hydrate deposit online coring test system of claim 1, wherein: the power module comprises a driving motor, a speed reducer, a screw-nut pair, a guide rod, a sliding sleeve and a spiral encoder; the output end of the driving motor is connected to the speed reducer, the output end of the speed reducer is connected with a screw rod of the screw rod nut pair to drive the screw rod to rotate, and the screw rod nut pair penetrates through the spiral encoder to be connected with the sampling module or the ultrasonic module; one end of the guide rod is connected to the spiral encoder, and the other end of the guide rod is connected to the upper end plug or the side plug; the sliding sleeve is matched with the guide rod, a nut of the screw-nut pair is arranged on the sliding sleeve, and the nut of the screw-nut pair drives the sliding sleeve to reciprocate along the guide rod under the driving of the driving motor; the sampling module or the ultrasonic module is connected with the sliding sleeve.
3. The hydrate deposit online coring test system of claim 1, wherein: the gas injection mechanism comprises a high-pressure gas source, a pressure regulating valve and a quantitative cylinder; the high-pressure gas source and the pressure regulating valve are sequentially connected in series on the gas injection runner, and the quantitative cylinder is connected in parallel between the pressure regulating valve and the gas injection runner through a pipeline.
4. The hydrate deposit online coring test system of claim 1, wherein: annotate liquid mechanism and include the infusion pump, the infusion pump passes through the pipe connection on the notes liquid runner of last end plug.
5. The hydrate deposit online coring test system of claim 1, wherein: the lower end plug is provided with a plurality of saturation detection probes extending into the kettle body, and the saturation detection probes are connected to a saturation tester through data lines.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018103064732 | 2018-04-08 | ||
| CN201810306473 | 2018-04-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109613112A CN109613112A (en) | 2019-04-12 |
| CN109613112B true CN109613112B (en) | 2022-03-04 |
Family
ID=66002984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811248195.6A Active CN109613112B (en) | 2018-04-08 | 2018-10-25 | Online coring test system for hydrate sedimentary layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109613112B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761326A (en) * | 2009-12-30 | 2010-06-30 | 中国科学院广州能源研究所 | Simulation method and experimental device for carbon dioxide replacement exploitation of gas hydrate |
| JP4559898B2 (en) * | 2005-03-31 | 2010-10-13 | 独立行政法人産業技術総合研究所 | Gas hydrate production equipment |
| CN201965059U (en) * | 2010-12-08 | 2011-09-07 | 中国海洋石油总公司 | Rock mechanics triaxial test device of natural gas hydrate |
| CN102778508A (en) * | 2012-07-24 | 2012-11-14 | 中国科学院广州能源研究所 | Device for in-situ synthesis and sound characteristic measuring of hydrate in deposits |
| CN103616300A (en) * | 2013-12-03 | 2014-03-05 | 中国科学院武汉岩土力学研究所 | Device and method for testing direct shear intensity of soil containing natural gas hydrate |
| CN105259018A (en) * | 2015-11-05 | 2016-01-20 | 西南石油大学 | Natural gas hydrate synthesis and decomposition multi-parameter test device |
| CN106552501A (en) * | 2016-10-27 | 2017-04-05 | 山东科技大学 | A kind of employing physical field coordination technique separates the device and method of mixed gas |
| CN107991164A (en) * | 2017-10-30 | 2018-05-04 | 大连理工大学 | A kind of sea bed gas hydrate rock core sound wave type plane strain instrument device |
-
2018
- 2018-10-25 CN CN201811248195.6A patent/CN109613112B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4559898B2 (en) * | 2005-03-31 | 2010-10-13 | 独立行政法人産業技術総合研究所 | Gas hydrate production equipment |
| CN101761326A (en) * | 2009-12-30 | 2010-06-30 | 中国科学院广州能源研究所 | Simulation method and experimental device for carbon dioxide replacement exploitation of gas hydrate |
| CN201965059U (en) * | 2010-12-08 | 2011-09-07 | 中国海洋石油总公司 | Rock mechanics triaxial test device of natural gas hydrate |
| CN102778508A (en) * | 2012-07-24 | 2012-11-14 | 中国科学院广州能源研究所 | Device for in-situ synthesis and sound characteristic measuring of hydrate in deposits |
| CN103616300A (en) * | 2013-12-03 | 2014-03-05 | 中国科学院武汉岩土力学研究所 | Device and method for testing direct shear intensity of soil containing natural gas hydrate |
| CN105259018A (en) * | 2015-11-05 | 2016-01-20 | 西南石油大学 | Natural gas hydrate synthesis and decomposition multi-parameter test device |
| CN106552501A (en) * | 2016-10-27 | 2017-04-05 | 山东科技大学 | A kind of employing physical field coordination technique separates the device and method of mixed gas |
| CN107991164A (en) * | 2017-10-30 | 2018-05-04 | 大连理工大学 | A kind of sea bed gas hydrate rock core sound wave type plane strain instrument device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109613112A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105659074B (en) | Three axis nuclear magnetic resonance test equipments | |
| CN101936833A (en) | Device and method for simulating generation of gas hydrate and measuring physical property parameters thereof | |
| CN111238967B (en) | Method for detecting mechanical properties of hydrate-containing sediment and processing data | |
| CN103470220B (en) | Natural gas hydrate simulation experiment device | |
| CN102411044A (en) | Diagenesis simulation experimental apparatus and method | |
| CN111521685A (en) | Natural gas hydrate under-pressure transfer and parameter detection system | |
| CN106556687A (en) | Weak cementing non-diagenesis hydrate acoustics and saturation degree synchronous testing device and method | |
| CN103630939B (en) | A kind of gas-bearing formation identification and evaluation method | |
| CN106525681A (en) | Method for determining pore diameter of shale reservoir | |
| CN102778508A (en) | Device for in-situ synthesis and sound characteristic measuring of hydrate in deposits | |
| CN105628575B (en) | Shale property determination method and device and shale property determination instrument | |
| CN201859081U (en) | Device simulating the generation of natural gas hydrate and measuring its physical parameter | |
| CN107621431B (en) | Device and method for rapidly measuring hydrate saturation in hydrate sediment suitable for various coring devices | |
| CN106290103B (en) | Method for measuring porosity of clay micropores in shale gas reservoir | |
| CN109613112B (en) | Online coring test system for hydrate sedimentary layer | |
| CN208433157U (en) | A kind of shale gas reservoir exploitation novel analog experimental provision | |
| Jia et al. | A review of dynamic fluid level detection for oil well | |
| CN102042948A (en) | Device for testing hydrate acoustic properties | |
| CN105089632A (en) | Method for obtaining CO2 fluid longitudinal wave time difference framework parameters of high-temperature and high-pressure reservoir | |
| CN110159261A (en) | The device and method of bubble point pressure in a kind of measurement compact oil reservoir | |
| Duchkov et al. | Equipment for the studies of the acoustic properties of hydrate-containing samples in laboratory conditions | |
| CN203441442U (en) | Natural gas hydrate simulation experiment device | |
| WO2016006609A1 (en) | Water sampling device-cum-viscosity coefficient measurement device and viscosity coefficient measurement method | |
| CN209280668U (en) | A kind of device of microwave method rapid survey pressure maintaining hydrate sample ore core saturation degree | |
| CN113834762A (en) | Method and system for measuring gas-water relative permeability curve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |