• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >The environmental effects of geologically sequestered carbon dioxide gas and the enhanced recovery of coal bed methane from an unmineable coal seam.
【24h】

The environmental effects of geologically sequestered carbon dioxide gas and the enhanced recovery of coal bed methane from an unmineable coal seam.

机译：地质封存的二氧化碳气体对环境的影响以及从不可开采的煤层中提高的煤层气回收率。

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

The need to mitigate the alleged effects of anthropogenic carbon dioxide gas (CO2(g)) generation has led to the exploring of specific subsurface environments to house the gas. The geology of the subsurface underlying Marshall County West Virginia makes the area an ideal setting for use as a CO 2(g) repository. A cooperative, pilot study was undertaken by CONSOL Energy Inc., which owns and operates the selected CO2(g) sequestration site, along with personnel from West Virginia University (WVU) and other agencies under the United States Department of Energy (DOE) funded Zero Emissions Research Technology or ZERT program. The repository is an unminable coal bed/seam overlain predominantly by shale. A potential residual effect of the geologic sequestration of CO2(g) is the enhanced recovery of otherwise unrecoverable coal bed methane gas (CH4(g)). The environmental effects of this type of geologic CO2(g) sequestration were previously unknown. Here we demonstrate methods of monitoring and any potential signatures of CO2(g) on the ground water, surface water, soil zone, and head space gases as well as the migration of perfluorocarbon (PFC) tracer, injected and tested by National Energy Technology Laboratory (NETL) researchers, within a 1 kilometer (km) square test grid where CO2(g) and CH4(g) related activities are taking place. The findings indicate the possibility of the microseepage of injected CO2(g) within the soil zone; the possibility of slight CO2(g) chemical weathering within the aquifer underlying the center of the test site square; an injected CO2(g) exacerbated head space CH4(g) pollution event; and a failure of the cement plug at the base of access well MH-19. The secondary findings indicate two separate coal bed formation (residual brine) water pollution events, affecting two test site ground water wells and two stream sampling locations; one event was accidental, while the other event is alleged to be intentional. The environmental effects of geologically sequestered CO2(g) may not be fully understood at the CO2(g) injection site, considering the lack of long periods of sustained CO2(g) injection and the lack of CO2(g) injection during the biologically dormant (winter) seasons during the study period.
机译：减轻所谓的人为二氧化碳气体（CO2（g））产生的影响的需要导致探索特定的地下环境来容纳该气体。西维吉尼亚州马歇尔县下面的地下地质使得该地区成为用作CO 2（g）储存库的理想场所。由CONSOL Energy Inc.进行了合作性试点研究，该公司拥有并经营选定的CO2（g）封存地点，以及西弗吉尼亚大学（WVU）和美国能源部（DOE）资助下的其他机构的人员零排放研究技术或ZERT程序。该库是一个主要由页岩覆盖的不可开采的煤层/煤层。地质隔离CO2（g）的潜在残留效应是提高了原本无法回收的煤层气（CH4（g））的回收率。这种地质二氧化碳封存对环境的影响以前是未知的。在这里，我们演示了由国家能源技术实验室注入并测试的监测方法以及对地下水，地表水，土壤区域和顶空气体以及全氟化碳（PFC）示踪剂迁移的监测方法以及任何可能的CO2（g）特征（NETL）研究人员，在1公里（km）正方形的测试网格内，正在进行与CO2（g）和CH4（g）相关的活动。研究结果表明，土壤区域内注入的CO2（g）可能会发生微渗漏。测试场地中心下方的含水层内可能会有轻微的CO2（g）化学风化；注入的CO2（g）加剧了顶空CH4（g）污染事件； MH-19检修井底部的水泥塞发生故障。次要结果表明，有两个单独的煤层形成（残留盐水）水污染事件，影响了两个测试地点的地下水井和两个溪流采样地点；一个事件是偶然的，而另一事件则被认为是故意的。考虑到在生物休眠期间缺乏长期持续的CO2（g）注入和缺乏CO2（g）注入，在CO2（g）注入地点可能无法完全了解地质隔离的CO2（g）的环境影响。研究期间的（冬季）季节。

著录项

  • 作者

    Hega, Brad David.;

  • 作者单位

    West Virginia University.;

  • 授予单位 West Virginia University.;
  • 学科 Environmental geology.;Geology.;Geochemistry.
  • 学位 M.S.
  • 年度 2015
  • 页码 111 p.
  • 总页数 111
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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