Advanced Search
DSpace@MIT

Seismic Imaging Of The Velocity Structure And The Location Of A Hydrofrac In A Geothermal Reservoir

Research and Teaching Output of the MIT Community

Show simple item record

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


Files in this item

Name Size Format Description
1991.12 Block et ... 4.630Mb PDF

This item appears in the following Collection(s)

Show simple item record

MIT-Mirage