TY -的A2 -曼宁,安德鲁·h . AU - de Riese塔玛拉盟——法国公债,保罗·d . AU - Gomez-Rivas恩里克AU - Sachau,直到PY - 2020 DA - 2020/11/05 TI - Crustal-Scale达西和水力压裂流体运输之间的交互:一个数值研究SP - 8891801六世- 2020 AB - Crustal-Scale流体可视为双向传输机制。在低水头梯度、流体流过岩石孔隙度很慢,可以描述为扩散。结构如液压角砾岩和热液静脉时形成流体速度和压力都很高,可以通过局部流体运输在时间和空间上,通过水力压裂。水力压裂传播,同时流体可以视为“弹道”传输机制,由扩散激活当运输本身是不足以当地流体超压释放。激活本地弹道系统减少的驱动力,通过允许流体的逃避。我们使用一个数值模型来研究两种传输模式的性质以及它们之间的转换。我们开发了一个数学模型来研究模式,由于双向传输。相对水力压裂时被激活,由于低渗透液通量,许多水力压裂形成不扩展到整个系统。这些丰富的水力压裂遵循幂律大小分布。赫斯特系数~ 0.9表示系统自组织。 The abundant small-scale hydrofractures organize the formation of large-scale hydrofractures that ascend through the whole system and drain fluids in large bursts. As the relative contribution of porous flow increases, escaping fluid bursts become less frequent, but more regular in time and larger in volume. We propose that metamorphic rocks with abundant veins, such as in the Kodiak accretionary prism (Alaska) and Otago schists (New Zealand), represent regions with abundant hydrofractures near the fluid source, while hydrothermal breccias are formed by the large fluid bursts that can ascend the crust to shallower levels. SN - 1468-8115 UR - https://doi.org/10.1155/2020/8891801 DO - 10.1155/2020/8891801 JF - Geofluids PB - Hindawi KW - ER -