Geochemical Integrity of Wellbore Cements during Geological Hydrogen Storage.
Geochemical Integrity of Wellbore Cements during Geological Hydrogen Storage.
复制标题
地质氢存储期间井孔水泥的地球化学完整性。
DOI：
10.1021/acs.estlett.3c00303
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发表时间：
2023-07-11
影响因子：
10.9
通讯作者：
Edlmann, Katriona
中科院分区：
文献类型：
--
作者：
Aftab, Adnan;Hassanpouryouzband, Aliakbar;Martin, Abby;Kendrick, Jackie E. E.;Thaysen, Eike M. M.;Heinemann, Niklas;Utley, James;Wilkinson, Mark;Haszeldine, R. Stuart;Edlmann, Katriona
温室气体排放的增加给全球经济带来压力，要求它们采取减缓气候变化的战略。盐穴和多孔岩石中的大规模地质储氢具有实现可持续能源储存的潜力，有助于低碳经济的发展。在地质储存过程中，氢气通过固井和套管井注入和提取。在这种情况下，必须通过对氢-水泥-岩石物理和地球化学过程的深入研究来评估井的完整性和泄漏风险。关于氢-水泥相互作用的科学知识存在很大的空白，氢、储层流体和水泥之间的化学反应可能会降解井固井，并危及储存系统的完整性。在模拟北海油田储层条件下（包括温度、压力和盐度），氢气对水泥样品影响的实验室间歇反应实验结果，为地质储氢的水泥完整性提供了有价值的见解。这项工作表明，在实验条件下，氢气不会引起测试井眼胶结物的地球化学或结构变化，这是一个有希望的安全氢气地下储存的发现。
Increasing greenhouse gas emissions have put pressure on global economies to adopt strategies for climate-change mitigation. Large-scale geological hydrogen storage in salt caverns and porous rocks has the potential to achieve sustainable energy storage, contributing to the development of a low-carbon economy. During geological storage, hydrogen is injected and extracted through cemented and cased wells. In this context, well integrity and leakage risk must be assessed through in-depth investigations of the hydrogen–cement–rock physical and geochemical processes. There are significant scientific knowledge gaps pertaining to hydrogen–cement interactions, where chemical reactions among hydrogen, in situ reservoir fluids, and cement could degrade the well cement and put the integrity of the storage system at risk. Results from laboratory batch reaction experiments concerning the influence of hydrogen on cement samples under simulated reservoir conditions of North Sea fields, including temperature, pressure, and salinity, provided valuable insights into the integrity of cement for geological hydrogen storage. This work shows that, under the experimental conditions, hydrogen does not induce geochemical or structural alterations to the tested wellbore cements, a promising finding for secure hydrogen subsurface storage.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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DOI：
10.1007/s13202-020-00883-8
发表时间：
2020-04-18
影响因子：
2.2
作者：
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通讯作者：
Khosravi, Maryam