地质封存条件下CO2在模拟盐水层溶液中的溶解度研究

Abstract

Abstract:

The greenhouse effect caused by excessive CO₂ emissions has led to many adverse effects on human life. As an effective CO₂ disposal technology, CO₂ geological storage technology has aroused more and more attention. The solubility of CO₂ in simulated deep saline solution and its variation with burial depth（800~2 800 m）were studied. The results showed that, when the buried depth was in the range of 800~1 700 m, the solubility of CO₂ decreased with the increase of buried depth. When the buried depth was greater than 1 700 m, the solubility of CO₂ increased with the increase of saline depth. In addition, the change of CO₂ solubility with burial depth could be fitted by the equation. And based on this equation, the storage capacity of CO₂ in a certain area of storage site could be calculated.

Key words: CO₂, solubility, Raman spectroscopy, simulated deep saline aquifer, fused silica capillary

CLC Number:

TE992

Yangjun Jin,Nai'an Chen,Yi Sheng, et al. Study on the solubility of CO₂ in simulated saline solution under geological storage condition[J]. Reservoir Evaluation and Development, 2019, 9(3): 77-81.

Figures/Tables 6

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Table 1

Table 2

References 15

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封存面积/km²	盐水层厚度/m
封存面积/km²	200	300	400
50	6.46×10⁸	9.54×10⁸	1.25×10⁹
100	1.29×10⁹	1.91×10⁹	2.51×10⁹
150	1.94×10⁹	2.86×10⁹	3.76×10⁹
200	2.58×10⁹	3.82×10⁹	5.02×10⁹
250	3.23×10⁹	4.77×10⁹	6.27×10⁹

封存面积/km²	盐水层厚度/m
封存面积/km²	200	300	400
50	5.18×10⁸	7.67×10⁸	1.01×10⁹
100	1.04×10⁹	1.53×10⁹	2.02×10⁹
150	1.55×10⁹	2.30×10⁹	3.03×10⁹
200	2.07×10⁹	3.07×10⁹	4.05×10⁹
250	2.59×10⁹	3.84×10⁹	5.06×10⁹

Study on the solubility of CO₂ in simulated saline solution under geological storage condition

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Study on the solubility of CO2 in simulated saline solution under geological storage condition

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Study on the solubility of CO₂ in simulated saline solution under geological storage condition