• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Enhanced coal bed methane production and sequestration of carbon dioxide in unmineable coal seams.
【24h】

Enhanced coal bed methane production and sequestration of carbon dioxide in unmineable coal seams.

机译：提高了不可开采煤层中的煤层气产量并封存了二氧化碳。

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 process of modeling reservoirs that are controlled by desorption such as Coal Bed Methane has always been challenging due to the complexities associated with flow of fluids in these types of reservoirs. These complexities become more notable while the injection process is taking place since interaction between the injected gas alters the coal properties with respect to time.;This manuscript summarizes the results of a study that includes reservoir simulation and modeling efforts that are focused on natural gas production and subsequent CO2 injection into an unmineable coal seam in the Marshall Country West Virginia. Two coal seams (Pittsburgh and the Upper Freeport) are the subject of this pilot CO2 sequestration project. Methane is being produced from both coal seams, however CO2 is injected only in the Upper Freeport formation (the deeper of the two formations) which includes four wells, two of them being shut-in. The Pittsburgh coal is used to observe and detect any possible leakage.;The objective is to build a reservoir simulation model that is capable of matching the methane production history and forecast field potential capacity for CO2 injection and sequestration. Although injection has taken place in two reasonably close wells, these wells perform differently as far as the production history and injection behavior is concerned.;A commercial numerical reservoir simulator CMG (Computer Modeling Group) is used for modeling this reservoir. Three different realizations of the reservoir were built base on different Langmuir isotherms. This step is succeeded by history matching process. The model which leads to a better approximation of the actual injection profile is selected for further analysis.;The outcome of this work includes the reservoir parameters of Upper Freeport formation. The coal seam capacity to sequester CO2 along with the injected CO2 path is forecasted. The lessons learned from this study will be used to define the safety margins as far as the maximum bottom-hole pressure is concerned.
机译：由于与这些类型的储层中的流体流动相关的复杂性，对受解吸控制的储层（如煤层甲烷）进行建模的过程一直具有挑战性。这些复杂性在注入过程中变得更加明显，因为注入的气体之间的相互作用会随时间改变煤的性质。该手稿总结了一项研究结果，其中包括针对天然气生产的储层模拟和建模工作然后将二氧化碳注入西弗吉尼亚州马歇尔乡村的一个不可开采的煤层。该试点二氧化碳封存项目的主题是两个煤层（匹兹堡和上自由港）。这两个煤层都在生产甲烷，但是仅在上自由港地层（两个地层中的较深地层）注入二氧化碳，该地层包括四个井，其中两个井被关闭。匹兹堡煤用于观察和检测任何可能的泄漏。目标是建立一个能够模拟甲烷生产历史并预测注入和封存二氧化碳潜力的储层模拟模型。尽管已在两个合理关闭的井中进行了注水，但就生产历史和注入行为而言，这些井的性能却有所不同。；使用商业数值油藏模拟器CMG（计算机建模组）对该油藏进行建模。根据不同的Langmuir等温线建立了三种不同的储层实现方式。此步骤由历史记录匹配过程完成。选择可以更好地逼近实际注入剖面的模型进行进一步分析。;这项工作的结果包括上自由港组的油藏参数。预测了煤层封存二氧化碳的能力以及注入的二氧化碳路径。就最大井底压力而言，将从本研究中吸取的教训将用于定义安全裕度。

著录项

  • 作者

    Calderon, Camilo E.;

  • 作者单位

    West Virginia University.;

  • 授予单位 West Virginia University.;
  • 学科 Engineering Petroleum.
  • 学位 M.S.
  • 年度 2010
  • 页码 75 p.
  • 总页数 75
  • 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