Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1645246 |
Self-Organization Mechanisms within Magma-Driven Dyke and Hydraulic Fracture Swarms | |
Andrew Bunger | |
主持机构 | University of Pittsburgh |
项目开始年 | 2017 |
2017 | |
项目结束日期 | 2019-12-31 |
资助机构 | US-NSF |
项目类别 | Continuing grant |
项目经费 | 110861(USD) |
国家 | 美国 |
语种 | 英语 |
英文摘要 | Fluid-filled cracks are an important feature of the upper crust of the Earth, and the proposed work addresses how fluid-filled cracks interact with one another when several are emplaced closely in space and time. Specifically, most magmas are transported in cracks between the deep crust and volcanoes, thus an understanding of the mechanics of these bodies is important for volcanic processes on the Earth and other planets. Hydraulic fracturing has revolutionized the fossil fuel industry and is another example of fluid-filled cracks under pressure. The mechanics of interacting cracks will be examined by applying a novel method that has been developed in biology: swarm theory. The principal investigator will use three methods to tackle the problem. First, mathematical models will be developed. Second, computational models will examine the parameters that lead to the development of crack swarms. Third, analogue experiments, which use artificial materials at room temperature and pressure, will be applied to simulate the processes in the earth and verify the analytical and computational models. The method has the potential to influence the design of new methods that will influence the conditions by which hydrocarbon and geothermal reservoirs are exploited. A new modeling paradigm is proposed that is based on swarm theory in order to clarify the mechanisms that lead to self-organization of fluid-filled cracks. The proposed research aims to clarify the origin of the alignment, repulsion, and attraction forces within fluid-filled cracks and to demonstrate how the interplay of these forces leads to emergent length scales that provide a lasting and measureable imprint of the mechanical conditions governing emplacement. Analytical, numerical, and analogue models will be developed to test the hypothesis that the mechanical conditions governing emplacement will be systematically expressed in the emergent geometry of the swarm, applying the results in order to infer emplacement conditions using measurements of spacing, length, and width for naturally-occurring dyke swarms and industrial hydraulic fractures. Observations of natural and manmade systems reveal substantial differences: hundreds of igneous dikes grow together as swarms, but hydraulic fractures tend to localize to 1 or 2 dominant strands. This paradox presents a unique opportunity to understand the physical mechanisms that govern whether or not injection of fluid will result in a fluid-driven fracture swarm. |
来源学科分类 | Geosciences - Earth Sciences |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/70656 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Andrew Bunger.Self-Organization Mechanisms within Magma-Driven Dyke and Hydraulic Fracture Swarms.2017. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Andrew Bunger]的文章 |
百度学术 |
百度学术中相似的文章 |
[Andrew Bunger]的文章 |
必应学术 |
必应学术中相似的文章 |
[Andrew Bunger]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论