发明名称 |
Method for Imaging Microseismic Events Using an Azimuthally-dependent Focal Mechanism |
摘要 |
Disclosed herein are various embodiments of methods and systems for determining the orientation and direction of first motion of a fault or fracture by optimizing an azimuthally-dependent attribute of signals generated by microseismic sources, comprising: recording microseismic data traces using a of sensors located at a plurality of sensor positions; subdividing the subsurface volume into spatial volumes corresponding to selected time intervals and comprising a plurality of voxels; for each voxel, applying a time shift to the microseismic data traces that is substantially equal to a travel time from each voxel to the corresponding sensor position, and determining for the voxel the orientation and direction of first motion of the fault or fracture corresponding to a maximum value for the voxel of at least one azimuthally-dependent attribute of the microseismic data traces.
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申请公布号 |
US2013100770(A1) |
申请公布日期 |
2013.04.25 |
申请号 |
US201113277178 |
申请日期 |
2011.10.19 |
申请人 |
DILLER DAVID;FISH BARRY;XUAN RAN;SICKING CHARLES JOHN;GLOBAL MICROSEISMIC SERVICES, INC. |
发明人 |
DILLER DAVID;FISH BARRY;XUAN RAN;SICKING CHARLES JOHN |
分类号 |
G01V1/00 |
主分类号 |
G01V1/00 |
代理机构 |
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地址 |
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