Device for testing high-temperature long-distance migration characteristics of pollutants in rock soil
A pollutant, long-distance technology, applied in the direction of measuring devices, sampling devices, soil testing, etc.
Pending Publication Date: 2021-12-10
杨栋
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Problems solved by technology
Solve the problem of pollutant migration characteristics test of rock core or soil under different axial confining pressure conditions from normal temperature to high temperature
Method used
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[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail in combination with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The technical solutions of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the scope of protection is not limited thereto.
[0019] Such as figure 1 As shown, a device for testing the migration characteristics of pollutants in rock or soil includes two sets of test systems, each set of test systems includes a core holder 1, a heating device 2 and an axial pressure confining pressure loading system 11, in The end of the core holder 1 of the first group of test systems is connected to a set of pollut...
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Abstract
The invention discloses a device for testing high-temperature long-distance migration characteristics of pollutants in rock soil, and belongs to the technical field of migration and control of pollutants in underground aquifers or rock-soil bodies. The device includes a plurality of groups of test systems which are connected in series through a pipeline with a heat preservation structure; the inlet ends of the plurality of groups of test systems which are connected in series are connected with a pollutant solution injection system, and the test systems are provided with liquid taking ports. The test system comprises a rock core holder, a heating device and an axial pressure and confining pressure loading system, the heating device wraps the periphery of the rock core holder; the axial pressure and confining pressure loading system is connected with the rock core holder through an axial pressure cavity liquid inlet and a confining pressure cavity liquid inlet respectively. The device is used for testing diffusion and migration rules of pollutants in underground water, soil, underground coal gasification and in-situ exploitation of oil shale or medium-low-maturity shale oil under different temperature and pressure conditions, the length of a tested sample is adjustable, and a test scheme is more flexible.
Description
technical field [0001] The invention belongs to the technical field of migration and control of pollutants in underground aquifers or rock-soil bodies, and in particular relates to a device for testing the high-temperature and long-distance migration characteristics of pollutants in rock-soil. Background technique [0002] Temperature and pressure in the formation will have an impact on the structure of rock and soil. For example, as the temperature rises, the solid skeleton will expand, but the increase of external stress will cause the skeleton to shrink. These changes will make the transport of pollutants Channel changed. In addition, the difference in pore pressure will also affect the distribution of pollutants. At present, the test equipment for pollutant migration law has a fixed length of the experimental sample (generally adopts the standard specimen size), which cannot test the pollutant migration law in the rock mass at a long distance, and the existing device T...
Claims
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IPC IPC(8): G01N13/00G01N33/24G01N1/08
CPCG01N13/00G01N33/24G01N1/08G01N2013/003
Inventor 田利军杨栋李强苏铭高磊黄旭东
Owner 杨栋