| 王心义,韩鹏飞,廖资生,林学钰.研究孔隙热储层水力联系的地球化学方法[J].水利学报,2001,32(8):0075-0079 |
| 研究孔隙热储层水力联系的地球化学方法 |
| The geochemical method for studying hydraulic relationships among porous medium reservoirs |
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| DOI： |
| 中文关键词: 孔隙地热系统 热储层 水化学成份 同位素方法 矿物-流体化学平衡模拟法 |
| 英文关键词: porous geothermal system reservoirs water chemical element isotope method mineral-fluid, chemical equilibrium simulation |
| 基金项目: |
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| 摘要点击次数: 2532 |
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| 中文摘要: |
| 以开封市埋深300～1600m孔隙地热系统为例，根据地热地质、水文地质条件的差异，以最大隔水层厚度为界，初步划分为6个热储层。据水化学特征，说明了埋深小于1300m热储层与1300~1600m热储层间的区别；利用放射性同位素法，估算了各热储层地热水的年龄(由浅至深，年龄自1.563万年变到2.497万年，平均年龄2.044万年)和循环速率(约8.1mm/d)；应用稳定性同位素法，确定了开封市地热水的来源为60km以外的郑州西南山区大气降水补给；按照矿物-流体化学平衡原理，研究了各热储层的平衡状态及平衡温度。研究表明：各热储层地热水之间无明显的水力联系，地热水补给源远离开封市且循环速率缓慢，地热水开采为静储最消耗型。 |
| 英文摘要: |
| According to the differences of geological and hydrogeological characteristics, the geothermal system of Kaifeng city in the depth of 300 to1600m is divided into six reservoirs. The difference of hydrochemical characteristics between the geothermal systems in the depth less than 1300m and in the depth from 1300m to 1600m is analyzed. By using the radioactive isotope 14C, the ages and circulating rates are calculated. The source of geothermal water is found using steady isotopic method. According to the chemical equilibrium theory of mineral-fluid, the equilibrium state and equilibrium temperature isstudied. |
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