CN201965059U - Rock mechanics triaxial test device of natural gas hydrate - Google Patents
Rock mechanics triaxial test device of natural gas hydrate Download PDFInfo
- Publication number
- CN201965059U CN201965059U CN2010206593718U CN201020659371U CN201965059U CN 201965059 U CN201965059 U CN 201965059U CN 2010206593718 U CN2010206593718 U CN 2010206593718U CN 201020659371 U CN201020659371 U CN 201020659371U CN 201965059 U CN201965059 U CN 201965059U
- Authority
- CN
- China
- Prior art keywords
- sample
- test device
- triaxial test
- pressing seat
- piston
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a rock mechanics triaxial test device of a natural gas hydrate, which comprises a closed pressure chamber consisting of a cylinder body, a base and an upper cover. At least one oil inlet hole, at least one air inlet hole and at least two sound wave line connecting holes are arranged on the base. The upper portion of the cylinder body is provided with at least one air outlet hole. A piston is disposed on the upper cover and connected to a moving beam outside the closed pressure chamber. A sample downward-pressing seat and a sample upward-pressing seat which are opposite to each other are arranged in the closed pressure chamber. The sample upward-pressing seat is corresponding to the piston in position, and the sample downward-pressing seat is fixed on the base. Both the sample upward-pressing seat and the sample downward-pressing seat are provided with sonic probes.
Description
Technical field
The utility model relates to a kind of rock mechanics laboratory testing rig, is specifically related to gas hydrate rock mechanics triaxial test device.
Background technology
Gas hydrate are that a kind of reserves are abundant, the green clean energy resource of high-energy-density.Along with the fast development of world economy, hydrocarbon resources consumes in a large number.The gross energy of world's gas hydrate is about coal, oil, gas summation 2～3 times, is significant for alleviating the hydrocarbon resources anxiety.
Gas hydrate are under certain temperature and pressure condition, the class ice of forming by natural G﹠W, the cage modle crystalline compounds.It is distributed widely in the deepwater environment of bump pad, continental platform, polar region and ocean and some interior lakes of area, slope, activity and the passive continental margin on continent, island.The sixties in 20th century, Soviet Union scientist finds at first that in the tundra, land first has that the gas hydrate gas field of commercial extraction value---Mai Suoya breathes out after the field, caused the common concern of countries in the world, wherein the research of states such as the United States, Russia, day, method is comparatively extensive.Since 1999, China Geological Survey Bureau has carried out earthquake of high resolving power multiple tracks and investigation works such as deep-sea geological sampling, bottom photography at gas hydrate in China's THE NORTHERN SLOPE OF SOUTH CHINA SEA.The survey showed that, and there is abundant gas hydrate resource in China marine site.China obtains actual hydrate sample in May, 2007 by probing, estimates to realize the runin of hydrate is adopted in 2016.
In the drilling process on gas hydrate stratum, drilling fluid makes hydrate decomposition in various degree, obvious variation can take place in mechanical properties such as sedimental intensity of gas hydrate and modulus, and hydrate sediment intensity reduces, and makes that collapsing appears in the borehole wall, rock gas is dissolved in the drilling fluid.This process increases engineering risks such as well kick, well slough.The sedimental intensive parameter of gas hydrate is the important parameter of hole stability analysis and hydrate development evaluation.Notice in the past mainly concentrates on the research aspect to the synthetic pure water compound physical characteristics in laboratory, and the research of developing at the ocean water compound just just begins.Because the stable temperature, pressure environment that need be specific of gas hydrate, the at present still untapped equipment that goes out at the experiment of gas hydrate sediment mechanical property, three experimental techniques of conventional rock mechanics and equipment are difficult to obtain and the hydrate sample that maintains the original state carries out triaxial strength and acoustic measurement.
Summary of the invention
The purpose of this utility model provides a kind of gas hydrate rock mechanics triaxial test device; (or directly to hydrate deposit sample) carried out three experiments of gas hydrate after described experimental provision can be used for the original position synthesized hydrate, record stress-strain curve, elastic modulus, Poisson ratio, cohesion, the angle of internal friction of hydrate sediment, can record the acoustics parameters of gas hydrate sample simultaneously; These basic datas provide basic data for research gas hydrate stratum wellbore stability, exploitation decomposition later on.
The gas hydrate rock mechanics triaxial test device that the utility model provides comprises the seal-off pressure chamber of being made up of cylindrical shell, base and loam cake; Described base is provided with at least one oil supply hole, at least one air admission hole and at least two sound wave lines and connects the hole; The top of described cylindrical shell is provided with at least one venthole; Cover on described and be provided with piston; The outdoor moving beam of this piston and described seal-off pressure links to each other; Be provided with corresponding sample down pressing seat and sample upper pressure seat in the described seal-off pressure chamber; Described sample upper pressure seat is corresponding with described position of piston, and described sample down pressing seat is fixed on the described base; Be equipped with sonic probe in described sample upper pressure seat and the sample down pressing seat.
In the above-mentioned triaxial test device, described base and loam cake all are tightly connected by latch segment and described cylindrical shell.
In the above-mentioned triaxial test device, the inboard of described base and loam cake and described cylindrical shell all is tightly connected by O-ring seal a.
In the above-mentioned triaxial test device, described base is provided with an oil supply hole, two air admission holes and two sound wave lines and connects the hole; The top of described cylindrical shell is provided with a venthole.
In the above-mentioned triaxial test device, described sample down pressing seat is fixed on the described base by register pin.
In the above-mentioned triaxial test device, described sample upper pressure seat is provided with pressure pad on the sample; Described sample down pressing seat is provided with pressure pad under the sample.
In the above-mentioned triaxial test device, described piston and described loam cake are tightly connected by O-ring seal b.
In the above-mentioned triaxial test device, be provided with thermal insulation board between described moving beam and the described piston.
In the above-mentioned triaxial test device, the lower surface of described base is provided with slide rail, as line slideway, is convenient to moving of described triaxial test device.
In the above-mentioned triaxial test device, described piston is connected with described sample upper pressure seat.
The gas hydrate rock mechanics triaxial test device that the utility model provides has following beneficial effect: with gas hydrate synthetic with decomposition with and mechanical property, acoustic properties be connected effectively, the triaxial cell has been carried out effective the combination with the gas hydrate reactor, avoided the decomposition of hydrate problem in the operating process such as mould sample preparation, dress sample, realized synchro measure, filled up the blank of domestic hydrate sediment mechanical property experiment and measuring equipment the rerum natura and the mechanical property parameter of gas hydrate sediment sample.
Description of drawings
Fig. 1 is the structural representation of gas hydrate rock mechanics triaxial test device of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing, but the utility model is not limited to following examples.
The structural representation of gas hydrate rock mechanics triaxial test device of the present utility model as shown in Figure 1, each mark is as follows among the figure: pressure pad, 17 oil supply holes, 18 air admission holes, 19 O-ring seal a under pressure pad, 15 samples on 1100KN load sensor, 2 moving beams, 3 thermal insulation boards, 4 pistons, 5 loam cakes, 6 O-ring seal b, 7 ventholes, 8 cylindrical shells, 9 sample upper pressure seats, 10 sample down pressing seat, 11 bases, 12 line slideways, 13,16 latch segments, 14 samples.
Gas hydrate rock mechanics triaxial test device of the present utility model comprises the seal-off pressure chamber of being made up of cylindrical shell 8, base 11 and loam cake 5; Base 11 places on two line slideways 12 so that move; Base 11 is tightly connected with cylindrical shell 8 by two latch segments 16 and two O-ring seal a 19; Loam cake 5 is tightly connected by two latch segments 13 and two O-ring seal a and cylindrical shell 8; Cylindrical shell 8 is provided with sample down pressing seat 10, and sample down pressing seat 10 is fixed on the base 11 by the register pin (not shown); Sample down pressing seat 10 is provided with pressure pad 15 under the sample; Sample down pressing seat 10 is provided with sample upper pressure seat 9, and sample upper pressure seat 9 is provided with pressure pad 14 on the sample, and sample down pressing seat 10 is corresponding with sample upper pressure seat 9 positions; Place rock sample between sample down pressing seat 10 and the sample upper pressure seat 9 to form gas hydrate; All be inlaid with 1 sonic probe (not shown) in sample down pressing seat 10 and the sample upper pressure seat 9, in pressurization, detect acoustic velocity like this; Base 11 is provided with an oil supply hole 17, two air admission holes 18 and two sound wave lines and connects the hole (not shown); Oil supply hole 17 is communicated with the fuel delivery device of outer setting, and delivery hydraulic pressure oil is to form confined pressure to sample in cylindrical shell 8; From two air admission holes 18, feed methane gas with the synthesizing methane hydrate; The sonic probe of inlaying in sample down pressing seat 10 and the sample upper pressure seat 9 connects the hole by two sound wave lines and is connected with the sonic apparatus of outer setting, so that the detected signal of sonic probe is input in the sonic apparatus; The top of cylindrical shell 8 is provided with a venthole 8; The middle part of loam cake 5 is provided with piston 4, and piston 4 is tightly connected with loam cake 5 by O-ring seal b 6; The outdoor moving beam 2 of piston 4 and seal-off pressure links to each other, and piston 4 links to each other with sample upper pressure seat 9; Be provided with thermal insulation board 3 between moving beam 2 and the piston 4; Apply axle pressure by moving beam 2 to sample; The top of moving beam 2 is provided with a 100KN load sensor, is used to measure the size of axial force, and the value of being surveyed is sent to the computer control system that is connected with this triaxial test device.
In the above-mentioned gas hydrate rock mechanics triaxial test device, base 11 can also be connected by other sealing means with cylindrical shell 8 with loam cake 5, as interference fit; The material of cylindrical shell 11 and big under can regulate as required; The quantity of the sonic probe of inlaying in sample down pressing seat 10 and the sample upper pressure seat 9 can be regulated as required; Piston 4 can also be connected by other sealing means with loam cake 5, as interference fit.
When using gas hydrate rock mechanics triaxial test device of the present utility model, sample is contained on the sample down pressing seat 10, sample upper pressure seat 9 is installed then; Then by oil supply hole 17 to the indoor hydraulic oil that charges into of seal-off pressure; When having hydraulic oil to overflow in the venthole 7, close venthole 7, continue after the pressure and temperature in the cylindrical shell 11 reaches the stationary value of gas hydrate formation, to stop in cylindrical shell 11, charging into hydraulic oil to the indoor hydraulic oil that charges into of seal-off pressure; Simultaneously, in cylindrical shell 11, feed the amount of methane gas and record feeding gas by air admission hole 18; Then by being embedded in the sedimental acoustic velocity of sonic probe test methane hydrate in sample upper pressure seat 9 and the sample down pressing seat 10; Apply axle pressure by driving moving beam 2 and piston 4 to sample after finishing, simultaneously by the axial strain of control system record, radial strain Changing Pattern with axial stress.Experiment is opened venthole 7 usefulness air pumps the hydraulic oil in the cylindrical shell 8 is blown out after finishing; Open latch segment 16 then, cylindrical shell 8 is raised up, take out the rock sample of finishing test.
Claims (10)
1. gas hydrate rock mechanics triaxial test device, it is characterized in that: it comprises the seal-off pressure chamber of being made up of cylindrical shell, base and loam cake; Described base is provided with at least one oil supply hole, at least one air admission hole and at least two sound wave lines and connects the hole; The top of described cylindrical shell is provided with at least one venthole; Cover on described and be provided with piston; The outdoor moving beam of this piston and described seal-off pressure links to each other; Be provided with corresponding sample down pressing seat and sample upper pressure seat in the described seal-off pressure chamber; Described sample upper pressure seat is corresponding with described position of piston, and described sample down pressing seat is fixed on the described base; Be equipped with sonic probe in described sample upper pressure seat and the sample down pressing seat.
2. triaxial test device according to claim 1 is characterized in that: described base and loam cake all are tightly connected by latch segment and described cylindrical shell.
3. triaxial test device according to claim 1 and 2 is characterized in that: the inboard of described base and loam cake and described cylindrical shell all is tightly connected by O-ring seal a.
4. triaxial test device according to claim 1 and 2 is characterized in that: described base is provided with an oil supply hole, two air admission holes and two sound wave lines and connects the hole; The top of described cylindrical shell is provided with a venthole.
5. triaxial test device according to claim 1 and 2 is characterized in that: described sample down pressing seat is fixed on the described base by register pin.
6. triaxial test device according to claim 1 and 2 is characterized in that: described sample upper pressure seat is provided with pressure pad on the sample; Described sample down pressing seat is provided with pressure pad under the sample.
7. triaxial test device according to claim 1 and 2 is characterized in that: described piston and described loam cake are tightly connected by O-ring seal b.
8. triaxial test device according to claim 1 and 2 is characterized in that: be provided with thermal insulation board between described moving beam and the described piston.
9. triaxial test device according to claim 1 and 2 is characterized in that: the lower surface of described base is provided with slide rail; Described slide rail is a line slideway.
10. triaxial test device according to claim 1 and 2 is characterized in that: described piston is connected with described sample upper pressure seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206593718U CN201965059U (en) | 2010-12-08 | 2010-12-08 | Rock mechanics triaxial test device of natural gas hydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206593718U CN201965059U (en) | 2010-12-08 | 2010-12-08 | Rock mechanics triaxial test device of natural gas hydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965059U true CN201965059U (en) | 2011-09-07 |
Family
ID=44527605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206593718U Expired - Lifetime CN201965059U (en) | 2010-12-08 | 2010-12-08 | Rock mechanics triaxial test device of natural gas hydrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965059U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162779A (en) * | 2011-01-07 | 2011-08-24 | 中国海洋石油总公司 | Triaxial test device for in-situ generation and decomposition of natural gas hydrate |
| CN102494954A (en) * | 2011-12-20 | 2012-06-13 | 中国地震局地质研究所 | Device for measuring in high-temperature and high-pressure container |
| CN102564853A (en) * | 2010-12-08 | 2012-07-11 | 中国海洋石油总公司 | Natural gas hydrate rock mechanical triaxial tester |
| CN103604702A (en) * | 2013-11-28 | 2014-02-26 | 中国科学院武汉岩土力学研究所 | Device for testing fracture toughness of rock |
| CN108982228A (en) * | 2018-07-14 | 2018-12-11 | 中国石油大学(华东) | A kind of combustible ice deposit actual triaxial testing apparatus |
| 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 |
| CN109613112A (en) * | 2018-04-08 | 2019-04-12 | 江苏联友科研仪器有限公司 | A kind of online coring test macro of hydrate deposit |
| CN109826620A (en) * | 2018-12-28 | 2019-05-31 | 中国科学院广州能源研究所 | Gas hydrates generate and decompose monitoring device and method in polymorphic type reservoir under more stress fields |
| CN111337523A (en) * | 2020-01-13 | 2020-06-26 | 中国海洋大学 | CT scanning device and method for sediment pore structure in hydrate generation and decomposition process |
-
2010
- 2010-12-08 CN CN2010206593718U patent/CN201965059U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564853A (en) * | 2010-12-08 | 2012-07-11 | 中国海洋石油总公司 | Natural gas hydrate rock mechanical triaxial tester |
| CN102162779A (en) * | 2011-01-07 | 2011-08-24 | 中国海洋石油总公司 | Triaxial test device for in-situ generation and decomposition of natural gas hydrate |
| CN102162779B (en) * | 2011-01-07 | 2013-05-29 | 中国海洋石油总公司 | Triaxial test device for in-situ generation and decomposition of natural gas hydrate |
| CN102494954A (en) * | 2011-12-20 | 2012-06-13 | 中国地震局地质研究所 | Device for measuring in high-temperature and high-pressure container |
| CN103604702A (en) * | 2013-11-28 | 2014-02-26 | 中国科学院武汉岩土力学研究所 | Device for testing fracture toughness of rock |
| CN103604702B (en) * | 2013-11-28 | 2016-06-22 | 中国科学院武汉岩土力学研究所 | A kind of assay device testing rock fracture toughness |
| CN109613112A (en) * | 2018-04-08 | 2019-04-12 | 江苏联友科研仪器有限公司 | A kind of online coring test macro of hydrate deposit |
| CN109613112B (en) * | 2018-04-08 | 2022-03-04 | 江苏联友科研仪器有限公司 | Online coring test system for hydrate sedimentary layer |
| CN108982228A (en) * | 2018-07-14 | 2018-12-11 | 中国石油大学(华东) | A kind of combustible ice deposit actual triaxial testing apparatus |
| 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 |
| CN109826620A (en) * | 2018-12-28 | 2019-05-31 | 中国科学院广州能源研究所 | Gas hydrates generate and decompose monitoring device and method in polymorphic type reservoir under more stress fields |
| CN111337523A (en) * | 2020-01-13 | 2020-06-26 | 中国海洋大学 | CT scanning device and method for sediment pore structure in hydrate generation and decomposition process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201965059U (en) | Rock mechanics triaxial test device of natural gas hydrate | |
| CN102564853A (en) | Natural gas hydrate rock mechanical triaxial tester | |
| Wu et al. | Mechanical characteristics of hydrate-bearing sediment: a review | |
| CN107045054B (en) | The experimental provision and method of the relationship of husky behavior and the deformation of porous media radial direction are produced in a kind of researching natural gas hydrate recovery process | |
| CN107894383B (en) | Device and method for measuring permeability of sediment containing hydrate under triaxial stress condition | |
| WO2021227384A1 (en) | Supergravity hydrate research test system and method | |
| CN108490151B (en) | Hypergravity simulation system for depressurization exploitation of natural gas hydrate | |
| WO2021159697A1 (en) | Comprehensive experimental exploitation system having large-scale, full-size, three-dimensional exploitation well | |
| Yun et al. | Hydrate-bearing sediments from the Krishna− Godavari Basin: physical characterization, pressure core testing, and scaled production monitoring | |
| Liu et al. | Recent advances on natural gas hydrate exploration and development in the South China Sea | |
| Xie et al. | Research on in-situ condition preserved coring and testing systems | |
| CN101697018B (en) | Method for simulating hydrate decomposition to cause layered fracture of stratum | |
| WO2014176794A1 (en) | Three-dimensional strata stability simulation device for natural gas hydrate extraction | |
| CN102445371A (en) | Integrated device for in-situ generation and decomposition of hydrate sediments and permeability measurement thereof | |
| CN102778508A (en) | Device for in-situ synthesis and sound characteristic measuring of hydrate in deposits | |
| CN103868799A (en) | Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum | |
| CN1332195C (en) | High temperature, high pressure core dynamic harm valuation test instrument | |
| CN110454146A (en) | The device and method to shake out in horizontal well with sand control in evaluation hydrate recovery process | |
| CN110630228A (en) | Evaluation of CO2/N2Device and method for shaft sand production and prevention during hydrate exploitation by displacement method | |
| Gu et al. | Numerical analysis on gas production from silty hydrate reservoirs in the South China sea by depressurizing: The effect of permeability reduction caused by pore compression | |
| Zhang et al. | Gas hydrate accumulation and occurrence associated with cold seep systems in the northern South China Sea: An overview | |
| CN114459910A (en) | Hydrate core testing method and device | |
| CN110018527B (en) | Valance source oil-gas dynamic reservoir exploration method | |
| Collett | Gas hydrate petroleum systems in marine and arctic permafrost environments | |
| CN206321172U (en) | It is a kind of to be used to test drilling fluid mud cake intensity and the test device of thickness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Research Institute Patentee after: China Petroleum University (East China) Patentee after: Changchun Rising Sun Testing Instruments Co.,Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Center Patentee before: China Petroleum University (East China) Patentee before: Changchun Rising Sun Testing Instruments Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: China Petroleum University (East China) Co-patentee after: Changchun Rising Sun Testing Instruments Co.,Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: China Petroleum University (East China) Co-patentee before: Changchun Rising Sun Testing Instruments Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |