WO2019100812A1 - 气体突破压力测试装置及方法 - Google Patents
气体突破压力测试装置及方法 Download PDFInfo
- Publication number
- WO2019100812A1 WO2019100812A1 PCT/CN2018/104638 CN2018104638W WO2019100812A1 WO 2019100812 A1 WO2019100812 A1 WO 2019100812A1 CN 2018104638 W CN2018104638 W CN 2018104638W WO 2019100812 A1 WO2019100812 A1 WO 2019100812A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- sample
- cylinder
- base
- testing device
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
Definitions
- the invention relates to the technical field of high-level waste disposal, and particularly relates to a device and a method for testing a gas breakthrough pressure of a buffer material in a high-level waste disposal repository.
- the repository is often referred to as the “high-level waste geological repository”, hereinafter referred to as the “repository”.
- the design concept of the repository is generally a “multi-barrier system”, including a surrounding rock geological barrier, an artificial barrier based on bentonite as a buffer material, and a waste storage container barrier.
- the glass-cured high-level waste is packaged in a special container made of a highly corrosion-resistant high-grade alloy steel or copper; when disposed, the cured container is filled with a bentonite material with good adsorption properties. This constitutes a multi-channel "artificial barrier”; in addition, there is an excellent "natural barrier”.
- the high-level waste repository is built in a stable geological layer (such as granite, clay rock, salt rock, etc.) that is several hundred meters deep underground.
- gases will gradually be produced in the repository due to complex physical and chemical reactions. These gases come from the following aspects: (1) hydrogen produced by metal cans in the bentonite and groundwater environment; (2) The decomposition of microorganisms causes the carbon dioxide, methane, nitrogen and other gases generated by the decay of organic matter; (3) the hydrogen produced by the radiation. With the continuous generation of these gases, the air pressure in the repository gradually increases, and the accumulated gas will escape to the outside. For the gas breakthrough pressure test, it is usually carried out in a three-axis pressure chamber, but due to the sample and device. There is a relatively smooth contact surface between them, which leads to inaccurate measurement results.
- the present invention provides a gas breakthrough pressure testing device comprising a cylinder for holding a sample, the inner wall of the cylinder is formed with a sealing section, and the sealing section is provided for a sample having expansion property. After water absorption, the sample expands and blocks the sealing section to achieve sealing, so that the sample and the cylinder are no longer smooth contact surfaces in the vertical direction, avoiding gas breakthrough from the interface between the sample and the cylinder, effectively improving The gas breaks through the accuracy of the stress test results.
- the gas breakthrough pressure testing device comprises a cylinder body for holding a sample, the cylinder body has an air inlet end at one end and an air outlet end at the other end, and the air inlet device is connected to the air inlet end.
- a gas monitoring device is connected to the gas outlet end, and an inner wall of the cylinder body is formed with a sealing section. During testing, the sample is in close contact with the inner wall of the cylinder to seal.
- the inlet end of the cylinder body is detachably and fixedly connected with a pressure head, and the pressure head is formed with an air inlet hole, and the air inlet hole is connected to the gas transmission device;
- the air outlet end of the cylinder body is detachably and fixedly connected a base, the base is formed with an air outlet, the air outlet is connected to the gas monitoring device;
- the cylinder is internally formed with a hollow cavity, the sample is contained in the hollow cavity, and the sealing section is formed in the cylinder and the test On the inner wall of the sample.
- the sealing section height H t is related to the sample height H sample , the cylinder inner diameter D t and the sample diameter D sample as follows:
- the sealing segments are a plurality of sets of grooves uniformly distributed along the axial direction of the cylinder block, and each set of grooves is arranged or segmented along the inner wall of the cylinder.
- each of the grooves has a depth of 0.3 mm and a width of 1 mm, and a spacing between adjacent sets of grooves is 4 mm.
- the indenter and the base are respectively formed with protrusions, and the protrusions are embedded in the cavity in the cylinder.
- a gas breakthrough pressure testing method adopts the above testing device, the testing device comprises a cylinder body, a pressing head and a base, wherein the cylinder body is internally formed with a hollow cavity, and the sample is contained in the hollow cavity, and the cylinder body and the test a sealing section is formed on the inner wall of the sample contact, an air inlet hole is formed on the pressure head, and an air outlet hole is formed on the base;
- the test method includes the following steps:
- Step 1 Place the prepared sample into the sealing section of the cavity in the cylinder.
- Step 2 Increase the humidity of the test space, and the sample absorbs water and expands to block the sealing section until it is sealed.
- Step 3 The indenter and the base are respectively fixed to the air inlet end and the air outlet end of the cylinder body by bolts, and the air inlet hole formed on the pressure head is connected with the gas conveying device, and the air outlet hole formed on the base is connected with the gas monitoring device.
- Step 4 Gradually increase the gas pressure of the air inlet from 0. When the continuous air flow is detected at the air outlet of the base, the pressure difference between the two ends is the gas breakthrough pressure of the sample.
- the test space temperature is 20 °C.
- the advantages of the device disclosed in the present invention for testing the breakthrough pressure of the buffer material of the high-level waste disposal repository are:
- the gas breakthrough pressure testing device disclosed in the present invention comprises a cylinder body containing a sample, the inner wall of the cylinder body is formed with a sealing section, and a sealing section is processed on the inner wall of the cylinder body, so that for the sample having swelling property, After water absorption, the sample expands and blocks the sealing section to achieve sealing, so that the sample and the cylinder are no longer smooth contact surfaces in the vertical direction, avoiding gas breakthrough from the interface between the sample and the cylinder, effectively improving the gas. Break the accuracy of the stress test results.
- Fig. 1 is a cross-sectional view 1 of the first embodiment.
- Figure 2 is a cross-sectional view 2 of the first embodiment.
- Figure 3 is a cross-sectional view 1 of the second embodiment.
- Figure 4 is a cross-sectional view 2 of Embodiment 2
- FIGS. 1 - 4 illustrate a preferred embodiment of the present invention, which are detailed in a detailed view of the structure.
- the gas breakthrough pressure testing device shown in FIG. 1-2 includes a cylinder 6 for containing the sample 5.
- the cylinder 6 has an intake end at one end and an air outlet at the other end, and a gas delivery device is connected to the intake end.
- the gas monitoring device is connected to the end, and the inner wall of the cylinder body 6 is formed with a sealing section, and the structure of the sealing section is not limited.
- the gas delivery device may be an inert gas
- the gas monitoring device may be a gas leak detector or a flow meter. Gas monitoring is performed at different time intervals when using a gas leak detector, and when the gas continuously overflows, the gas is continuously broken. When using a flow meter for gas monitoring, when the detected gas flow suddenly increases, it can be determined that the gas continues to break through.
- the inlet end of the cylinder 6 is bolted to the indenter 1 , and the indenter 1 is formed with an air inlet 9 , and the air inlet 9 is connected to the gas transmission device; the outlet end of the cylinder 6 is bolted to the base 8 , and the base 8 is mounted on the base 8 An air outlet 7 is formed, and the air outlet 7 is connected to the gas monitoring device.
- the cylinder 6 is internally formed with a hollow cavity 10, and the sample 5 is contained in the hollow cavity 10.
- the sealing section is formed on the inner wall of the cylinder 6 which is in contact with the sample 5.
- the sample 5 absorbs water and expands to block the sealing section for sealing.
- the arrangement of the ram 1 and the base 8 makes the sealing effect of the cylinder 6 better, and the connection manner of the cylinder 6 with the ram 1 and the bottom 8 is not limited, and the bolting is only a preferred embodiment.
- the height of the sealing section 5 and the sample height H t H sample, 6 the inner diameter of the cylinder diameter D t D sample and the sample 5 has the following relationship:
- sealing segments are a plurality of sets of grooves 4 uniformly distributed along the axial direction of the cylinder block 6, and each set of the grooves 4 is disposed or segmented along the inner wall of the cylinder block 6.
- each of the grooves 4 has a depth of 0.3 mm and a width of 1 mm, and the interval between the adjacent two sets of grooves 4 is 4 mm.
- the gas breakthrough pressure testing device shown in Figures 3-4 is the same as in Embodiment 1, except that:
- the ram 1 and the base 8 are respectively formed with projections 3 which are embedded in the cavity 10 in the cylinder 6.
- the protrusion 3 is used together with the indenter 1 and the base 8 to facilitate the installation of the sealing ring, so that the sealing effect of the whole device is better.
- the gas breakthrough pressure testing device disclosed in the present invention processes a sealing section on the inner wall of the cylinder block 6.
- the sample 5 having expansion property, after the water absorption, the sample 5 expands and blocks the sealing section to achieve sealing, thereby making the sample 5 and the cylinder 6 is no longer a smooth contact surface in the vertical direction, avoiding gas breakthrough from the interface between the sample 5 and the cylinder 6, effectively improving the accuracy of the gas breakthrough stress test result.
- the present invention also provides a gas breakthrough pressure testing method, which is implemented by using the device of the above embodiment, and the testing method comprises the following steps:
- Step 1 Place the prepared sample 5 into the sealing section of the cavity 10 in the cylinder 6.
- Step 2 Increase the humidity of the test space, and sample 5 expands to block the seal section until it is sealed.
- Step 3 The indenter 1 and the base 8 are respectively fixed to the intake end and the outlet end of the cylinder 6 by bolts 2.
- the air inlet 9 formed on the indenter 1 is connected with the gas transmission device, and the air outlet formed on the base 8 is formed. 7 Connect to the gas monitoring device.
- Step 4 Gradually increase the gas pressure of the air inlet hole 9 from 0.
- the pressure difference between the two ends is the gas breakthrough pressure of the sample.
- test space temperature was 20 °C.
- the gas breakthrough pressure testing device disclosed in the present invention comprises a cylinder body for holding a sample, the inner wall of the cylinder body is formed with a sealing section, and the sealing section is processed on the inner wall of the cylinder body, so that the sample having the expansion property is In the case of water absorption, the sample expands and blocks the sealing section to achieve sealing, so that the sample and the cylinder are no longer smooth contact surfaces in the vertical direction, thereby avoiding gas breakthrough from the interface between the sample and the cylinder. Effectively improve the accuracy of gas breakthrough stress test results.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
- Measuring Fluid Pressure (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Description
Claims (8)
- 一种气体突破压力测试装置,其特征在于,包括用以盛装试样(5)的缸体(6),所述缸体(6)一端为进气端,另一端为出气端,所述进气端连接有输气装置,所述出气端连接有气体监测装置,所述缸体(6)的内壁成型有密封段,测试时,试样(5)与所述缸体(6)内壁间紧密接触以密封。
- 根据权利要求1所述的气体突破压力测试装置,其特征在于,所述缸体(6)进气端可拆卸固定连接有压头(1),所述压头(1)上成型有进气孔(9),所述进气孔(9)连接输气装置;所述缸体(6)出气端可拆卸固定连接有底座(8),所述底座(8)上成型有出气孔(7),所述出气孔(7)连接气体监测装置;所述缸体(6)内部成型有中空腔(10),所述试样(5)盛装于中空腔(10)内,所述密封段成型于缸体(6)与试样(5)接触的内壁上。
- 根据权利要求3所述的气体突破压力测试装置,其特征在于,所述密封段为沿缸体(6)的轴向均匀分布的多组凹槽(4),每组凹槽(4)沿缸体(6)内壁一周设置或分段设置。
- 根据权利要求4所述的气体突破压力测试装置,其特征在于,每一所述凹槽(4)的深度为0.3mm,宽度为1mm,相邻两组凹槽(4)之间的间距为4mm。
- 根据权利要求5所述的气体突破压力测试装置,其特征在于,所述压头(1)与底座(8)分别成型有凸出部(3),所述凸出部(3)嵌入缸体(6)中空腔(10)内。
- 一种气体突破压力测试方法,其特征在于,采用权利要求1-6任一项所述的测试装置,所述测试装置包括缸体(6)、压头(1)和底座(8),所述缸体(6)内部成型有中空腔(10),试样盛装于中空腔(10)内,所述缸体(6)与试样(5)接触的内壁上成型有密封段,所述压头(1)上成型有进气孔(9),底座(8)上成型有出气孔(7);所述测试方法包括以下步骤:步骤一:将制作好的试样(5)放入缸体(6)中空腔(10)内密封段处;步骤二:增加测试空间的湿度,试样(5)吸水膨胀堵塞密封段,直至密封;步骤三:将压头(1)与底座(8)通过螺栓(2)分别固定在缸体的进气端与出气端,压头(1)上成型的进气孔(9)与输气装置连接,底座(8)上成型的出气孔(7)与气体监测装置连接;步骤四:从0开始逐渐增加进气孔(9)的气体压力,待底座(8)出气孔(7)处监测到持续的气流时,则进气孔(9)与出气孔(7)的气体压力差即为试样(5)的气体突破压力。
- 根据权利要求7所述的气体突破压力测试方法,其特征在于,测试空间温度为20℃。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2019118231A RU2723232C1 (ru) | 2017-11-23 | 2018-09-07 | Устройство и способ экспериментального определения давления прорыва газа |
AU2018372341A AU2018372341B2 (en) | 2017-11-23 | 2018-09-07 | Gas escape pressure testing device and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711182357.6 | 2017-11-23 | ||
CN201711182357.6A CN108168768B (zh) | 2017-11-23 | 2017-11-23 | 气体突破压力测试装置及方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019100812A1 true WO2019100812A1 (zh) | 2019-05-31 |
Family
ID=62527595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2018/104638 WO2019100812A1 (zh) | 2017-11-23 | 2018-09-07 | 气体突破压力测试装置及方法 |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN108168768B (zh) |
AU (1) | AU2018372341B2 (zh) |
RU (1) | RU2723232C1 (zh) |
WO (1) | WO2019100812A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110132746A (zh) * | 2019-06-19 | 2019-08-16 | 四川大学 | 三轴测试仪进行地质断层力学行为的室内实验模拟装置及方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108168768B (zh) * | 2017-11-23 | 2019-03-01 | 中国矿业大学 | 气体突破压力测试装置及方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103556993A (zh) * | 2013-11-07 | 2014-02-05 | 中国石油大学(北京) | 低渗透油田平面五点法井网二氧化碳驱仿真实验模拟方法 |
CN103776744A (zh) * | 2012-10-19 | 2014-05-07 | 中国石油化工股份有限公司 | 一种岩样三向渗透率的检测方法及其检测系统 |
CN204461880U (zh) * | 2015-01-04 | 2015-07-08 | 中国石油天然气股份有限公司 | 岩芯突破压力测试装置 |
CN104792685A (zh) * | 2015-04-23 | 2015-07-22 | 太原理工大学 | 一种破碎煤岩体气体渗透试验装置及方法 |
US20150355068A1 (en) * | 2013-03-24 | 2015-12-10 | Schlumberger Technology Corporation | System and methodology for determining properties of a substance |
CN105547848A (zh) * | 2016-01-13 | 2016-05-04 | 重庆科技学院 | 一种混合岩心测试室及泥岩突破压力测试装置 |
CN108168768A (zh) * | 2017-11-23 | 2018-06-15 | 中国矿业大学 | 气体突破压力测试装置及方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08274350A (ja) * | 1995-03-29 | 1996-10-18 | Yokogawa Electric Corp | 半導体圧力センサ及びその製造方法 |
US5889211A (en) * | 1995-04-03 | 1999-03-30 | Motorola, Inc. | Media compatible microsensor structure and methods of manufacturing and using the same |
DE102008043175A1 (de) * | 2008-10-24 | 2010-04-29 | Endress + Hauser Gmbh + Co. Kg | Relativdrucksensor |
CN201358783Y (zh) * | 2009-02-23 | 2009-12-09 | 大庆油田有限责任公司 | 压力流量集成式验封仪 |
DE102009028488A1 (de) * | 2009-08-12 | 2011-02-17 | Endress + Hauser Gmbh + Co. Kg | Relativdrucksensor |
CN202693192U (zh) * | 2012-06-27 | 2013-01-23 | 龙泉市杰科汽车零部件有限公司 | 一种差压传感器 |
-
2017
- 2017-11-23 CN CN201711182357.6A patent/CN108168768B/zh active Active
-
2018
- 2018-09-07 WO PCT/CN2018/104638 patent/WO2019100812A1/zh active Application Filing
- 2018-09-07 RU RU2019118231A patent/RU2723232C1/ru active
- 2018-09-07 AU AU2018372341A patent/AU2018372341B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103776744A (zh) * | 2012-10-19 | 2014-05-07 | 中国石油化工股份有限公司 | 一种岩样三向渗透率的检测方法及其检测系统 |
US20150355068A1 (en) * | 2013-03-24 | 2015-12-10 | Schlumberger Technology Corporation | System and methodology for determining properties of a substance |
CN103556993A (zh) * | 2013-11-07 | 2014-02-05 | 中国石油大学(北京) | 低渗透油田平面五点法井网二氧化碳驱仿真实验模拟方法 |
CN204461880U (zh) * | 2015-01-04 | 2015-07-08 | 中国石油天然气股份有限公司 | 岩芯突破压力测试装置 |
CN104792685A (zh) * | 2015-04-23 | 2015-07-22 | 太原理工大学 | 一种破碎煤岩体气体渗透试验装置及方法 |
CN105547848A (zh) * | 2016-01-13 | 2016-05-04 | 重庆科技学院 | 一种混合岩心测试室及泥岩突破压力测试装置 |
CN108168768A (zh) * | 2017-11-23 | 2018-06-15 | 中国矿业大学 | 气体突破压力测试装置及方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110132746A (zh) * | 2019-06-19 | 2019-08-16 | 四川大学 | 三轴测试仪进行地质断层力学行为的室内实验模拟装置及方法 |
CN110132746B (zh) * | 2019-06-19 | 2024-05-10 | 四川大学 | 三轴测试仪进行地质断层力学行为的室内实验模拟装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
AU2018372341B2 (en) | 2020-10-15 |
CN108168768B (zh) | 2019-03-01 |
AU2018372341A2 (en) | 2019-07-25 |
CN108168768A (zh) | 2018-06-15 |
RU2723232C1 (ru) | 2020-06-09 |
AU2018372341A1 (en) | 2019-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8191430B2 (en) | Method and apparatus for pipe testing | |
WO2019100812A1 (zh) | 气体突破压力测试装置及方法 | |
CN105352670B (zh) | 一种油气井固井水泥环密封性评价系统 | |
TW202036599A (zh) | 放射性廢料貯存系統及方法 | |
CN102011581A (zh) | 应力敏感性地层钻井堵漏模拟评价装置 | |
CN102830057A (zh) | 一种固井水泥石腐蚀评价方法 | |
US11837373B2 (en) | Hazardous material repository systems and methods | |
JP2021527196A (ja) | 有害物質キャニスタ | |
CN111963150B (zh) | 一种煤层瓦斯压力测定装置及使用方法 | |
US20220367080A1 (en) | Storing hazardous waste material | |
CN206161249U (zh) | 碗状密封总成的试压装置 | |
CN210090197U (zh) | 三轴泥水劈裂试验中试样与注浆底座的密封装置 | |
Liu et al. | Artificial ground freezing technique in tunnel construction considering uncertain drilling inaccuracy of freeze pipes | |
CN217932107U (zh) | 一种随钻测井用闪烁体封装装置 | |
CN114778433B (zh) | 一种氢气存储密封层力学行为测试装置及方法 | |
CN108457645B (zh) | 煤气层氮气循环吞吐压裂可行性评价装置 | |
CN1979118B (zh) | 软岩饱水夹持器 | |
CN110687017B (zh) | 测定缓冲材料气体迁移特性与膨胀力的装置及方法 | |
Pintado et al. | Full-scale test for KBS-3H spent nuclear fuel repository alternative in Sweden | |
CN211043056U (zh) | 一种用于煤层渗透率测定实验的煤样吸附装置 | |
Talandier et al. | Simulations of the hydrogen migration out of intermediate-level radioactive waste disposal drifts using TOUGH2 | |
CN211500623U (zh) | 一种用于吸水剖面测井装置 | |
CN211906980U (zh) | 高放射性核废料容器 | |
CN101144379A (zh) | 用于钻孔位移和水位同孔测量的测斜管 | |
RU2155261C2 (ru) | Способ испытания обсадных колонн газовых скважин на газогерметичность |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018372341 Country of ref document: AU Date of ref document: 20180907 Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18880923 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18880923 Country of ref document: EP Kind code of ref document: A1 |