• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Using chemical and isotopic data to monitor geological carbon dioxide storage at the International Energy Agency Weyburn Carbon Dioxide Monitoring and Storage Project, Saskatchewan, Canada.
【24h】

Using chemical and isotopic data to monitor geological carbon dioxide storage at the International Energy Agency Weyburn Carbon Dioxide Monitoring and Storage Project, Saskatchewan, Canada.

机译：在加拿大萨斯喀彻温省国际能源署Weyburn二氧化碳监测和封存项目中，使用化学和同位素数据监测地质二氧化碳的封存。

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

Carbon capture and geological storage (CCS) is one of the most promising technologies for reducing atmospheric CO2 emissions. In western Canada the proximity of the Western Canadian Sedimentary Basin to many large stationary sources of CO2 provides an opportunity to implement CCS. The IEA GHG (International Energy Agency Greenhouse Gas) Weyburn CO 2 Monitoring and Storage Project involves the injection of 1.5 million tonnes of CO2 annually into a hydrocarbon reservoir for the purpose of enhanced oil recovery and geological CO2 storage. Monitoring of geological storage is essential to evaluate the different storage processes and confirm the integrity of the storage reservoir.;In 2000, prior to CO2 injection at Weyburn, produced fluids and gases were sampled from over forty production wells, with a range of chemical and isotopic parameters measured; a further 11 monitoring events followed at circa four month intervals. Geochemical data from the fluid and gas monitoring events were used to trace injected CO2, investigate the origin and evolution of sulfur species, evaluate CO2-aqueous fluid-mineral reactions, quantify the mass of injected CO2 stored as HCO 3-, and estimate molecular CO2 storage in the reservoir fluids.;Geochemical data from selected production wells over four years of CO 2 injection demonstrate that ionic trapping of injected CO2 is the most important source of HCO3- during CO 2 injection, with dissolution of carbonate minerals a secondary HCO 3- source. These geochemical data, supported by history matched reaction path simulations, suggest that alteration of K-feldspar has buffered the pH decrease, enhancing aqueous CO2 storage (as HCO 3-) and mineral storage of CO2 as CaCO 3. In a selected part of the field, reconstruction of measured data to reservoir conditions suggests that approximately 185,000 tonnes of injected CO2 are stored in the reservoir fluids.;An investigation of sulfur species concentrations and isotopic compositions, while highlighting the influence of bacterial sulfate reduction (BSR) and injected water, demonstrates that BSR is unlikely to have been an important source of HCO3- following CO2 injection.;As well as evaluating CO2 storage processes, the geochemical data provide a means of monitoring the ongoing response of the reservoir matrix and cap rock to CO2 injection.
机译：碳捕获和地质封存（CCS）是减少大气中CO2排放的最有前途的技术之一。在加拿大西部，加拿大西部沉积盆地靠近许多固定的大量二氧化碳源，为实施CCS提供了机会。 IEA GHG（国际能源署温室气体）Weyburn CO 2监测和封存项目涉及每年向碳氢化合物储层注入150万吨CO2，以提高石油采收率和地质CO2封存的目的。监测地质储藏对于评估不同的储藏过程和确认储层的完整性至关重要。2000年，在Weyburn注入CO2之前，从40多个生产井中采样了采出的流体和气体，并采用了一系列化学和同位素参数测量；每隔大约四个月又进行了11次监视事件。来自流体和气体监测事件的地球化学数据用于追踪注入的CO2，研究硫物种的起源和演化，评估CO2的水-矿物质反应，量化作为HCO 3-储存的注入的CO2的质量以及估算分子CO2在四年的CO 2注入过程中，从选定的生产井中获取的地球化学数据表明，注入的CO2的离子捕集是CO 2注入过程中HCO3-的最重要来源，而碳酸盐矿物的溶解则是次级HCO 3-资源。这些地球化学数据得到历史匹配的反应路径模拟的支持，表明钾长石的改变已缓冲了pH的降低，增强了含水二氧化碳的存储（如HCO 3-）和二氧化碳的矿物存储（如CaCO 3）。现场，根据储层条件对测量数据的重建表明，储层流体中储存了大约185,000吨注入的CO2。对硫的种类浓度和同位素组成进行了调查，同时强调了细菌硫酸盐还原（BSR）和注入水的影响，证明BSR不太可能是注入CO2后HCO3的重要来源。除了评估CO2的储存过程外，地球化学数据还提供了一种监测储层基质和盖层对CO2注入的持续响应的手段。

著录项

  • 作者

    Raistrick, Mark.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Geochemistry.
  • 学位 Ph.D.
  • 年度 2008
  • 页码 242 p.
  • 总页数 242
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;
  • 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