Distributed Acoustic Sensing (DAS) Data for Periodic Hydraulic Tests: Hydraulic Data

Hydraulic responses from periodic hydraulic tests conducted at the Mirror Lake Fractured Rock Research Site, during the summer of 2015. These hydraulic responses were measured also using distributed acoustic sensing (DAS) which is cataloged in a different submission under this grant number. The tests are explained in detail in Matthew Cole's MS Thesis which is cataloged here.

The injection and drawdown data and the codes used to analyze the data. Sinusoidal Data is a Matlab data file containing a data table for each period-length test. Within each table is a column labeled: time (seconds since beginning of pumping), Inj_m3pm (formation injection in cubic meters per minute), and head for each observation well (meters). The three Matlab script files (*.m) were used to analyze hydraulic responses from the data file above. High-Pass Sinusoid is a routine for filtering the data, computing the FFT, and extracting phase and amplitude values. Borestore is a routine which contains the borehole storage analytic solution and compares modeled amplitude and phase from this solution to computed amplitude and phase from the data. Patsearch Borestore is a routine containing the built-in pattern search optimization method. This minimizes the total error between modeled and actual amplitude and phase in Borestore. Comments within the script files contain more specific instructions for their use.

2015年夏季，在镜湖裂隙岩体研究基地进行的周期性水力测试所获得的液压响应数据。这些液压响应数据亦通过分布式声波传感（DAS）进行测量，该数据被收录于另一项资助编号下的不同提交中。测试详情已在Matthew Cole的硕士论文中详细阐述，论文存档于此。数据集包括注入和降压数据以及用于分析数据的代码。正弦数据是一个Matlab数据文件，其中包含每个周期性长度测试的数据表。每个表格中包含以下列：时间（自泵送开始以来的秒数）、Inj_m3pm（每分钟立方米的地层注入量）以及每个观测井的水头（米）。三个Matlab脚本文件（*.m）被用于分析上述数据文件中的液压响应。高通正弦波是用于过滤数据、计算FFT以及提取相位和幅值值的程序。Borestore是一个包含井孔存储解析解的程序，它将模型得到的幅值和相位与从该解中计算得到的幅值和相位进行比较。Patsearch Borestore是一个包含内置模式搜索优化方法的程序，该程序旨在最小化Borestore中模型幅值和相位与实际幅值和相位之间的总误差。脚本文件中的注释包含更具体的用法说明。