Experimental test device and test method for salt precipitation concentration of real formation water under high temperature and high pressure
A high-temperature and high-pressure testing device technology, which is applied in the field of experimental testing devices for salt precipitation concentration, can solve the problems that cannot be used to measure the salt concentration of underground salt water, is not suitable for the concentration of salt precipitation in formation water, etc., and achieves reliable and accurate experimental test results. , The effect of high industry promotion value and cost reduction
Active Publication Date: 2022-02-11
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
The crystallization method cannot be used to determine the concentration of salt precipitation in the underground saline layer under specific temperature and pressure conditions (formation water temperature, pressure)
Therefore, the existing experimental methods are not suitable for testing the concentration of salt evolution in formation water during the process of sequestering carbon dioxide in underground saline aquifers.
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[0040] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0041] figure 1 Shown is the structure of an experimental test device for salt precipitation concentration of real formation water with high temperature and high pressure according to an embodiment of the present invention.
[0042] Such as figure 1 As shown, the high-temperature and high-pressure real formation water salt precipitation concentration experimental test device provided by the embodiment of the present invention includes: a first four-way valve 16-1, and valve a of the first four-way valve 16-1 passes through the pipeline and the first intermediate The container 7-1 communicates, and the deionized water 6 and the silicone oil 4 separated by the first piston 5-1 are housed in the first intermediate container 7-1, and the first intermediate container 7-1 is connected with the first constant speed constant The pressure pump 1-1 is...
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The invention provides a high-temperature and high-pressure real formation water salt precipitation concentration experimental test device, three constant pressure and constant speed pumps, five pressure gauges, five stop valves, deionized water, three intermediate containers, observation containers, self-heating Insulation layer, explosion-proof steel jacket, temperature sensor, solid particle feeder, nitrogen cylinder, three four-way valves, vacuum pump, vacuum pressure gauge, two pressure limiting valves, gas pressure buffer, two measuring cylinders with rubber stoppers, three Gan Alcohol, anhydrous calcium chloride, two electronic balances, video camera, air compressor, gas buffer storage tank, constant temperature box, constant temperature heating system. The invention can realize the test of salt precipitation concentration in formation water during the process of storing carbon dioxide in the underground saline water layer, and obtain reliable and accurate experimental results, which can provide a basis for formulating countermeasures for the prevention and control of salt precipitation in the formation water during the process of storing carbon dioxide in the underground saline water layer Basic data, thereby delaying the salt precipitation time of formation water, reducing the damage caused by salt precipitation, and reducing the cost of carbon dioxide storage.
Description
technical field [0001] The invention belongs to the technical field of geological storage of carbon dioxide, and in particular relates to an experimental test device and a test method for salt precipitation concentration of formation water in the process of storing carbon dioxide in underground saline water layers. Background technique [0002] Carbon dioxide is one of the main gases that produce the greenhouse effect, and the problem of global warming caused by it is attracting more and more attention from countries all over the world. According to China's latest carbon dioxide emission reduction plan: China strives to reach the peak of carbon emissions before 2030, and strives to achieve carbon neutrality before 2060. As we all know, carbon dioxide capture and geological storage is currently recognized globally as one of the most direct and effective technical means to reduce the concentration of carbon dioxide in the atmosphere. Because of the wide distribution of underg...
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IPC IPC(8): G01N33/18
CPCG01N33/18
Inventor 汤勇胡世莱唐良睿龙科吉刘昕金成洪代军汪勇
Owner SOUTHWEST PETROLEUM UNIV