Constraining Leakage Pathways Through the Overburden Above Sub-Seafloor Co2 Storage Reservoirs
Constraining Leakage Pathways Through the Overburden Above Sub-Seafloor Co2 Storage Reservoirs
复制标题
限制穿过海底二氧化碳封存库上方覆盖层的泄漏路径
DOI：
10.2139/ssrn.3365826
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
A. Best
中科院分区：
文献类型：
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作者：
J. Bull;C. Berndt;T. Minshull;T. Henstock;G. Bayrakci;R. Gehrmann;Christoph Böttner;Bettina Schramm;B. Callow;M. Chapman;N. Yilo;M. Dewar;Baixin Chen;U. Saleem;H. Marín‐Moreno;G. Provenzano;A. Lichtschlag;I. Falcon‐Suarez;B. Roche;R. James;D. Connelly;J. Matter;J. Elger;J. Karstens;A. Best
海底任何可能的CO2泄漏的位置和潜在强度在很大程度上取决于任何假定的储存库上覆沉积物覆盖层中流体路径的分布和渗透性。作为欧洲联盟资助项目（STEMM-CCS）的一部分，对地震反射数据的评估揭示了北海和挪威海覆盖层的横切结构。这些地震成像的管道和烟囱被认为是流体流动的可能途径。在地质时期的某个时候，来自更深地层的天然流体已经通过这些结构迁移。如果从海底下储存库泄漏的二氧化碳到达这些结构的底部，并且如果它们的渗透性足够高，它们可能成为二氧化碳泄漏到海底和上覆水柱的通道。提供可靠
The location and potential intensity of any possible CO2 leakage at the seafloor are critically dependent on the distribution and permeability of fluid pathways in the sediment overburden overlying any putative storage reservoir. Evaluation of seismic reflection data, as part of a European Union funded project (STEMM-CCS), has revealed structures crosscutting the overburden within the North Sea and Norwegian Sea. These seismicallyimaged pipes and chimneys are considered to be possible pathways for fluid flow. Natural fluids from deeper strata have migrated through these structures at some point in geological time. If CO2 leaking from sub-seafloor storage reservoirs reaches the base of these structures, and if their permeability is sufficiently high, they could act as CO2 leakage pathways towards the seafloor and overlying water column. To provide a reliable