TY - GEN
T1 - Signal enhancement in microseismic data
T2 - Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting: Expanding Geophysical Frontiers, SEG 2013
AU - Forghani-Arani, Farnoush
AU - Willis, Mark
AU - Haines, Seth S.
AU - Behura, Jyoti
AU - Batzle, Mike
N1 - Funding Information:
We thank the Department of Energy for the financial support under contract number DE-GF36-08G018195. We are also greatful to Whiting Oil and Gas for permission to present the microseismic data, especially Jeff Ross for his support. We also thank Mike Thornton for his technical discussion and Mike Mueller for his support. We thank Roel Snieder for his valuable suggestions and discussions. We also thank Steve Smith and John Stockwell for their technical discussions.
Publisher Copyright:
© 2013 SEG SEG Houston 2013 Annual Meeting.
PY - 2013
Y1 - 2013
N2 - We implement a technique to suppress surface-wave noise in microseismic data based upon the distinct characteristics that microseismic signals and noise display in the − p domain. In order to determine an estimated orientation that best accounts for the polarity pattern of any microseismic events with double-couple source mechanisms, we employ a scanning approach similar to semblance analysis, to test all possible double-couple orientations. We then correct the polarity of the data traces according to this pattern, prior to conducting signal-noise separation in the − p domain. We apply this noise suppression technique to microseismic data recorded by a star-shaped array, over a Bakken Shale reservoir during a hydraulic fracturing process. Our technique significantly improves the signal-to-noise ratios of the microseismic events. We illustrate that the enhancement in signal-to-noise ratio also results in improved imaging of the microseismic hypocenter.
AB - We implement a technique to suppress surface-wave noise in microseismic data based upon the distinct characteristics that microseismic signals and noise display in the − p domain. In order to determine an estimated orientation that best accounts for the polarity pattern of any microseismic events with double-couple source mechanisms, we employ a scanning approach similar to semblance analysis, to test all possible double-couple orientations. We then correct the polarity of the data traces according to this pattern, prior to conducting signal-noise separation in the − p domain. We apply this noise suppression technique to microseismic data recorded by a star-shaped array, over a Bakken Shale reservoir during a hydraulic fracturing process. Our technique significantly improves the signal-to-noise ratios of the microseismic events. We illustrate that the enhancement in signal-to-noise ratio also results in improved imaging of the microseismic hypocenter.
UR - http://www.scopus.com/inward/record.url?scp=85058109548&partnerID=8YFLogxK
U2 - 10.1190/segam2013-1286.1
DO - 10.1190/segam2013-1286.1
M3 - Conference contribution
AN - SCOPUS:85058109548
SN - 9781629931883
T3 - Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013: Expanding Geophysical Frontiers
SP - 4289
EP - 4293
BT - Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013
PB - Society of Exploration Geophysicists
Y2 - 22 September 2013 through 27 September 2013
ER -