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首页> 外文期刊>Journal of Engineering Mechanics >Fluid-induced seismicity: Theory, modeling, and applications
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Fluid-induced seismicity: Theory, modeling, and applications

机译：流体诱发的地震活动性：理论，模型和应用

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Operations including borehole fluid injections are typical for exploration and development of hydrocarbon or geothermic reservoirs. Microseismicity occurring during such operations has a large potential for understanding physics of the seismogenic process as well as in obtaining detailed information about reservoirs at locations as far as several kilometers from boreholes. We propose that the phenomenon of microseismicity triggering by borehole fluid injections is related to the process of the Frenkel-Biot slow wave propagation. In the low-frequency range (hours or days of fluid injection durations) this process reduces to the pore-pressure diffusion. We search for diffusion-related features of induced micro seismicity. Two types of such signatures are considered. The first one is related to the geometry of microseismic clouds. Another type of signature is related to the probability of microearthquakes. On this basis we introduce a concept for interpretation of microseismic data which provides a possibility to infer information about hydraulic properties of rocks. Such information can be of significant importance for industrial applications and for understanding physical properties of geological structures.
机译：包括井下流体注入在内的作业是油气和地热油藏勘探和开发的典型方法。在这样的操作过程中发生的微震具有很大的潜力，可用于理解地震发生过程的物理原理，以及在距井眼几公里的位置获得有关储层的详细信息。我们认为，井眼注水引发的微震现象与Frenkel-Biot慢波传播的过程有关。在低频范围（流体注入持续时间为数小时或数天）中，此过程减少到孔隙压力扩散。我们寻找诱发微地震活动的扩散相关特征。考虑了两种类型的这种签名。第一个与微震云的几何形状有关。签名的另一种类型与微地震的可能性有关。在此基础上，我们引入了一种解释微震数据的概念，为推断岩石的水力特性提供了可能性。这样的信息对于工业应用和理解地质结构的物理性质可能具有重要的意义。

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