%0 Journal Article %1 majer:etal:1988 %A Majer, E. L. %A McEvilly, T. V. %A Eastwood, F. S. %A Myer, L. R. %D 1988 %I SEG %J Geophysics %K geophysics seismics %N 1 %P 76--84 %R 10.1190/1.1442401 %T Fracture detection using P-wave and S-wave vertical seismic profiling at The Geysers %U http://dx.doi.org/10.1190/1.1442401 %V 53 %X In a pilot vertical seismic profiling study, P-wave and cross-polarized S-wave vibrators were used to investigate the potential utility of shear-wave anisotropy measurements in characterizing a fractured rock mass. The caprock at The Geysers geothermal field was found to exhibit about an 11 percent velocity variation between SH-waves and SV-waves generated by rotating the S-wave vibrator orientation to two orthogonal polarizations for each survey level in the well. The effect is generally consistent with the equivalent anisotropy expected from the known fracture geometry.

@article{majer:etal:1988, abstract = {In a pilot vertical seismic profiling study, P-wave and cross-polarized S-wave vibrators were used to investigate the potential utility of shear-wave anisotropy measurements in characterizing a fractured rock mass. The caprock at The Geysers geothermal field was found to exhibit about an 11 percent velocity variation between SH-waves and SV-waves generated by rotating the S-wave vibrator orientation to two orthogonal polarizations for each survey level in the well. The effect is generally consistent with the equivalent anisotropy expected from the known fracture geometry.}, added-at = {2012-09-01T13:08:21.000+0200}, author = {Majer, E. L. and McEvilly, T. V. and Eastwood, F. S. and Myer, L. R.}, biburl = {https://www.bibsonomy.org/bibtex/2b39316f2897cca2c0d9d9440658c93cd/nilsma}, day = 1, doi = {10.1190/1.1442401}, interhash = {01ede58758cee7f85925c757a074ccd7}, intrahash = {b39316f2897cca2c0d9d9440658c93cd}, journal = {Geophysics}, keywords = {geophysics seismics}, month = jan, number = 1, pages = {76--84}, publisher = {SEG}, timestamp = {2021-02-09T13:26:12.000+0100}, title = {Fracture detection using P-wave and S-wave vertical seismic profiling at The Geysers}, url = {http://dx.doi.org/10.1190/1.1442401}, volume = 53, year = 1988 }