dc.contributor.author | Block, Lisa V. | |
dc.contributor.author | Cheng, C. H. | |
dc.contributor.author | Fehler, Michael C. | |
dc.contributor.author | Phillips, W. Scott | |
dc.contributor.other | Massachusetts Institute of Technology. Earth Resources Laboratory | en_US |
dc.date.accessioned | 2012-12-03T22:00:35Z | |
dc.date.available | 2012-12-03T22:00:35Z | |
dc.date.issued | 1991 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/75183 | |
dc.description.abstract | The Los Alamos Hot Dry Rock Reservoir is an experimental geothermal project in
north-central New Mexico. A fractured zone was created within otherwise impermeable
igneous and metamorphic rock by injecting water into a borehole under high pressure,
at about 3.5 km depth. During the injection process, the seismic waves created by the
fracturing events were recorded by seismometers located in four nearby boreholes. A
subset of the arrival times from these microearthquakes is iteratively inverted for the
three-dimensional P-wave and S-wave velocity structures and the hypocenter parameters,
using the separation of parameters technique. The inversion results indicate that
the P-wave and S-wave velocities decrease by at least 20% within the fractured zone.
Also, the hypocenters are rotated into a more compact distribution, elative to the initiallocations found using a homogeneous velocity model, suggesting that the hypocenter
locations are significantly improved. | en_US |
dc.description.sponsorship | United States. Dept. of Energy (Grant DE-FG02-86ER136360) | en_US |
dc.description.sponsorship | Massachusetts Institute of Technology. Full Waveform Acoustic Logging Consortium | en_US |
dc.description.sponsorship | Phillips Petroleum Fellowship | en_US |
dc.publisher | Massachusetts Institute of Technology. Earth Resources Laboratory | en_US |
dc.relation.ispartofseries | Earth Resources Laboratory Industry Consortia Annual Report;1991-12 | |
dc.title | Seismic Imaging Of The Velocity Structure And The Location Of A Hydrofrac In A Geothermal Reservoir | en_US |
dc.type | Technical Report | en_US |
dc.contributor.mitauthor | Block, Lisa V. | |
dc.contributor.mitauthor | Cheng, C. H. | |
dspace.orderedauthors | Block, Lisa V.; Cheng, C. H.; Fehler, Michael C.; Phillips, W. Scott | en_US |