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| DOI | 10.1146/annurev-earth-053018-060437 |
| Permeability of clays and shales | |
| Neuzil C.E. | |
| 发表日期 | 2019 |
| ISSN | 0084-6597 |
| 起始页码 | 247 |
| 结束页码 | 273 |
| 卷号 | 47 |
| 英文摘要 | The low permeability of clays, shales, and other argillaceous lithologies makes them key controls of transport and deformation processes in the crust but is known for being challenging to characterize. As muds are modified by compaction and diagenesis to low-porosity shales, permeability can decrease by six or more orders of magnitude, but at large scales it is often dramatically and unpredictably increased by fractures, faults, and other features. Testing and inverse modeling show that petrophysical properties and the geological environment are dominant controls of clay and shale matrix permeability and its scale dependence. Active sedimentation and tectonism on continental margins cause large-scale permeability to vary with time, but in stable continent interiors it is unclear how regional permeability of argillaceous formations changes over time or, in most cases, what controls it. Although rarely considered, it is also unknown whether Darcian permeability adequately describes flow in clay-rich materials. ▪ Critical for problems in energy, water supply, waste isolation, and geologic hazards, clay and shale permeability remains problematic. ▪ Test data and inverse model analyses are beginning to reveal where and how permeability of clay and shale changes with scale. ▪ In clays and shales, causes of permeability scale effects, their time dependence, and even flow behavior continue to raise questions. © 2019 by Annual Reviews. All rights reserved. |
| 关键词 | ClayClay mineralsHydraulic conductivityInverse problemsMechanical permeabilityPetrophysicsWater supplyArgillaceous formationsGeological environmentInverse model analysisLarge-scale permeabilityMatrix permeabilitymudrockOrders of magnitudePetrophysical propertiesShaleclaydiagenesishydraulic conductivitypermeabilityphysical propertysedimentationshale |
| 语种 | 英语 |
| 来源机构 | Annual Review of Earth and Planetary Sciences |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131919 |
| 推荐引用方式 GB/T 7714 | Neuzil C.E.. Permeability of clays and shales[J]. Annual Review of Earth and Planetary Sciences,2019,47. |
| APA | Neuzil C.E..(2019).Permeability of clays and shales.,47. |
| MLA | Neuzil C.E.."Permeability of clays and shales".47(2019). |
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