Imaging Faults with Reverse-Time Migration for Geothermal Exploration at Jemez Pueblo in New Mexico
Abstract
The fault zones at Jemez Pueblo may dominate the flow paths of hot water, or confine the boundaries of the geothermal reservoir. Therefore, it is crucial to image the geometry of these fault zones for geothermal exploration in the area. We use reverse-time migration with a separation imaging condition to image the faults at Jemez Pueblo. A finite-difference full-wave equation method with a perfectly-matching-layer absorbing boundary condition is used for backward propagation of seismic reflection data from receivers and forward propagation of wavefields from sources. In the imaging region, the wavefields are separated into the upgoing and downgoing waves, and leftgoing and rightgoing waves. The upgoing and downgoing waves are used to obtain the downward-looking image, and the leftgoing and rightgoing waves are used to form the left-looking image and right-looking image from sources. The left-looking and right-looking images are normally weaker than the downward-looking image because the reflections from the fault zones are much weaker than those from sedimentary layers, but these migration results contain the images of the faults. We apply our reverse-time migration with a wavefield separation imaging condition to seismic data acquired at Jemez Pueblo, and our preliminary results reveal many faults in the area.
- Authors:
-
- Los Alamos National Laboratory
- TBA Power
- Jemez Purblo
- NM Bureau of Geology and Mineral Researces
- EES-17 visitor
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- DOE/LANL
- OSTI Identifier:
- 1014446
- Report Number(s):
- LA-UR-11-10640
TRN: US201110%%904
- DOE Contract Number:
- AC52-06NA25396
- Resource Type:
- Conference
- Resource Relation:
- Conference: GRC's 35th Annual Meeting ; 2011-10-23 - 2011-10-26 ; San Diego, California, United States
- Country of Publication:
- United States
- Language:
- English
- Subject:
- Earth Sciences; Geothermal Energy (15); BOUNDARY CONDITIONS; GEOMETRY; GEOTHERMAL EXPLORATION; HOT WATER; NEW MEXICO; REFLECTION
Citation Formats
Huang, Lianjie, Albrecht, Michael, Kaufman, Greg, Kelley, Shari, Rehfeldt, Kenneth, and Zhang, Zhifu. Imaging Faults with Reverse-Time Migration for Geothermal Exploration at Jemez Pueblo in New Mexico. United States: N. p., 2011.
Web.
Huang, Lianjie, Albrecht, Michael, Kaufman, Greg, Kelley, Shari, Rehfeldt, Kenneth, & Zhang, Zhifu. Imaging Faults with Reverse-Time Migration for Geothermal Exploration at Jemez Pueblo in New Mexico. United States.
Huang, Lianjie, Albrecht, Michael, Kaufman, Greg, Kelley, Shari, Rehfeldt, Kenneth, and Zhang, Zhifu. 2011.
"Imaging Faults with Reverse-Time Migration for Geothermal Exploration at Jemez Pueblo in New Mexico". United States. https://www.osti.gov/servlets/purl/1014446.
@article{osti_1014446,
title = {Imaging Faults with Reverse-Time Migration for Geothermal Exploration at Jemez Pueblo in New Mexico},
author = {Huang, Lianjie and Albrecht, Michael and Kaufman, Greg and Kelley, Shari and Rehfeldt, Kenneth and Zhang, Zhifu},
abstractNote = {The fault zones at Jemez Pueblo may dominate the flow paths of hot water, or confine the boundaries of the geothermal reservoir. Therefore, it is crucial to image the geometry of these fault zones for geothermal exploration in the area. We use reverse-time migration with a separation imaging condition to image the faults at Jemez Pueblo. A finite-difference full-wave equation method with a perfectly-matching-layer absorbing boundary condition is used for backward propagation of seismic reflection data from receivers and forward propagation of wavefields from sources. In the imaging region, the wavefields are separated into the upgoing and downgoing waves, and leftgoing and rightgoing waves. The upgoing and downgoing waves are used to obtain the downward-looking image, and the leftgoing and rightgoing waves are used to form the left-looking image and right-looking image from sources. The left-looking and right-looking images are normally weaker than the downward-looking image because the reflections from the fault zones are much weaker than those from sedimentary layers, but these migration results contain the images of the faults. We apply our reverse-time migration with a wavefield separation imaging condition to seismic data acquired at Jemez Pueblo, and our preliminary results reveal many faults in the area.},
doi = {},
url = {https://www.osti.gov/biblio/1014446},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2011},
month = {Sat Jan 01 00:00:00 EST 2011}
}