Detailed Fracture System of the Soultz-sous-Forêts HDR Field Evaluated Using Microseismic Multiplet Analysis
Detailed Fracture System of the Soultz-sous-Forêts HDR Field Evaluated Using Microseismic Multiplet Analysis
复制标题
使用微震多重分析评估 Soultz-sous-Forêts HDR 场的详细裂缝系统
DOI：
10.1007/pl00001263
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发表时间：
2002
影响因子：
2
通讯作者：
R. Baria
中科院分区：
文献类型：
--
作者：
H. Moriya;Katsuhisa Nakazato;H. Niitsuma;R. Baria
Soultz HDR油田的储层结构已经通过检查诱发的微地震多重波进行了研究。从1993年水力压裂实验中获得的微震数据中选择了波形相似的微震事件。精确的相对到达时间和源位置已确定的交叉频谱分析。交叉频谱分析的残差从0.75毫秒下降到0.1毫秒。估计的多重态平面的方向与在Soultz钻孔中检测到的断裂方向一致。应力场与结构面方位的对比表明，结构面处于摩擦滑动的临界状态。
Thereservoir structure of the Soultz HDR field has been investigated by examining induced microearthquake multiplets. Microseismic events with similar waveforms have been selected from microseismic data obtained during a 1993 hydraulic fracturing experiment. Precise relative arrival times and source locations have been determined by cross-spectrum analysis. The cross-spectrum analysis decreased the residual from 0.75 ms to 0.1 ms. The estimated orientations of the multiplet planes are consistent with fracture orientations detected in Soultz boreholes. A comparison between the stress field and the orientation of structural planes suggests that the structural planes were under a critical condition of frictional slip.