Probing multiscale dissolution dynamics in natural rocks through microfluidics and compositional analysis
文献类型：期刊论文
| 作者 | Ling, Bowen2,3; Sodwatana, Mo2; Kohli, Arjun2; Ross, Cynthia M.2; Jew, Adam1; Kovscek, Anthony R.2; Battiato, Ilenia2 |
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2022-08-09 |
| 卷号 | 119期号:32页码:9 |
| ISSN号 | 0027-8424 |
| 关键词 | dissolution microfluidics geochemistry mineralogy |
| DOI | 10.1073/pnas.2122520119 |
| 通讯作者 | Battiato, Ilenia(ibattiat@stanford.edu) |
| 英文摘要 | Mineral dissolution significantly impacts many geological systems. Carbon released by diagenesis, carbon sequestration, and acid injection are examples where geochemical reactions, fluid flow, and solute transport are strongly coupled. The complexity in these systems involves interplay between various mechanisms that operate at timescales ranging from microseconds to years. Current experimental techniques characterize dissolution processes using static images that are acquired with long measurement times and/or low spatial resolution. These limitations prevent direct observation of how dissolution reactions progress within an intact rock with spatially heterogeneous mineralogy and morphology. We utilize microfluidic cells embedded with thin rock samples to visualize dissolution with significant temporal resolution (100 ms) in a large observation window (3 x 3 mm). We injected acidic fluid into eight shale samples ranging from 8 to 86 wt % carbonate. The pre- and postreaction microstructures are characterized at the scale of pores (0.1 to 1 mu m) and fractures (1 to 1,000 mu m). We observe that nonreactive particle exposure, fracture morphology, and loss of rock strength are strongly dependent on both the relative volume of reactive grains and their distribution. Time-resolved images of the rock unveil the spatiotemporal dynamics of dissolution, including two-phase flow effects in real time and illustrate the changes in the fracture interface across the range of compositions. Moreover, the dynamical data provide an approach for characterizing reactivity parameters of natural heterogeneous samples when porous media effects are not negligible. The platform and workflow provide real-time characterization of geochemical reactions and inform various subsurface engineering processes. |
| WOS关键词 | FRACTURE DISSOLUTION ; GAS-STORAGE ; SHALE ; VARIABILITY ; TRANSPORT ; SEM |
| 资助项目 | Center for Mechanistic Control of Unconventional Formations, an Energy Frontier Research Center - US Department of Energy, Office of Science, Basic Energy Sciences[DE-SC0019165] ; NSF[ECCS-2026822] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000926104800019 |
| 资助机构 | Center for Mechanistic Control of Unconventional Formations, an Energy Frontier Research Center - US Department of Energy, Office of Science, Basic Energy Sciences ; NSF |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/91703]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Battiato, Ilenia |
| 作者单位 | 1.SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA 2.Stanford Univ, Energy Resources Engn, Stanford, CA 94305 USA 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ling, Bowen,Sodwatana, Mo,Kohli, Arjun,et al. Probing multiscale dissolution dynamics in natural rocks through microfluidics and compositional analysis[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2022,119(32):9. |
| APA | Ling, Bowen.,Sodwatana, Mo.,Kohli, Arjun.,Ross, Cynthia M..,Jew, Adam.,...&Battiato, Ilenia.(2022).Probing multiscale dissolution dynamics in natural rocks through microfluidics and compositional analysis.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(32),9. |
| MLA | Ling, Bowen,et al."Probing multiscale dissolution dynamics in natural rocks through microfluidics and compositional analysis".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.32(2022):9. |
入库方式： OAI收割
来源：力学研究所
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