...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Sequestration of Dissolved CO_2 in the Oriskany Formation
【24h】

Sequestration of Dissolved CO_2 in the Oriskany Formation

机译：螯合Oriskany组中溶解的CO_2

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Experiments were conducted to determine the solubility of CO_2 in a natural brine solution of the Oriskany formation under elevated temperature and pressure conditions. These data were collected at temperatures of 22 and 75 ℃ and pressures between 100 and 450 bar. Experimentally determined data were compared with CO_2 solubility predictions using a model developed by Duan and Sun (Chem. Geol. 2003, 193, 257-271). Model results compare well with Oriskany brine CO_2 solubility data collected experimentally, suggesting that the Duan and Sun model is a reliable tool for estimating solution CO_2 capacity in high salinity aquifers in the temperature and pressure range evaluated. The capacity for the Oriskany formation to sequester dissolved CO_2 was calculated using results of the solubility models, estimation of the density of CO_2 saturated brine, and available geographic information system (GIS) information on the formation depth and thickness. Results indicate that the Oriskany formation can hold approximately 0.36 gigatonnes of dissolved CO_2 if the full basin is considered. When only the region where supercritical CO_2 can exist (temperatures greaterthan 31 ℃ and pressures greaterthan 74 bar) is considered, the capacity of the Oriskany formation to sequester dissolved CO_2 is 0.31 gigatonnes. The capacity estimate considering the potential to sequester free-phase supercritical CO_2 if brine were displaced from formation pore space is 8.8 gigatonnes in the Oriskany formation.
机译：进行实验以确定在升高的温度和压力条件下CO_2在Oriskany地层的天然盐水溶液中的溶解度。这些数据是在22至75℃的温度和100至450 bar的压力下收集的。使用Duan和Sun（Chem。Geol。2003，193，257-271）开发的模型，将实验确定的数据与CO_2溶解度预测值进行比较。模型结果与通过实验收集的Oriskany盐水CO_2溶解度数据进行了很好的比较，表明Duan和Sun模型是在评估的温度和压力范围内估算高盐度含水层中溶液CO_2容量的可靠工具。使用溶解度模型的结果，CO_2饱和盐水的密度估计以及有关地层深度和厚度的可用地理信息系统（GIS）信息，计算了Oriskany地层封存溶解的CO_2的能力。结果表明，如果考虑整个盆地的话，Oriskany地层可容纳约0.36千兆吨溶解的CO_2。仅考虑可以存在超临界CO_2的区域（温度大于31℃，压力大于74 bar）时，Oriskany地层封存溶解的CO_2的能力为0.31千兆吨。考虑到如果在Oriskany地层中将盐水从地层孔隙中驱出，则考虑到螯合自由相超临界CO_2的潜力的估计容量为8.8吉塔。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号