Detailed Fracture System of the Soultz-sous-Forêts HDR Field Evaluated Using Microseismic Multiplet Analysis

被引：0

作者：

H. Moriya

K. Nakazato

H. Niitsuma

R. Baria

机构：

[1] Department of Geoscience and Technology,

[2] Graduate School of Engineering,undefined

[3] Tohoku University,undefined

[4] Sendai,undefined

[5] 980-8579 Japan. E-mail: hirokazu@ni4.earth.tohoku.ac.jp,undefined

[6] SOCOMINE,undefined

[7] Soultz-sous-Forêts,undefined

[8] France.,undefined

来源：

pure and applied geophysics | 2002年 / 159卷

关键词：

Key words: Multiplet, HDR, microearthquakes, induced seismicity.;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

— The reservoir 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.

引用

页码：517 / 541

页数：24