Application of super-virtual seismic refraction interferometry to enhance first arrivals: A case study from Saudi Arabia
Type
ArticleKAUST Department
Earth Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Date
2012-01Permanent link to this record
http://hdl.handle.net/10754/555634
Metadata
Show full item recordAbstract
Complex near-surface anomalies are one of the main onshore challenges facing seismic data processors. Refraction tomography is becoming a common technology to estimate an accurate near-surface velocity model. This process involves picking the first arrivals of refracted waves. One of the main challenges with refraction tomography is the low signal-to-noise ratio characterizing the first-break waveform arrivals, especially for the far-offset receivers. This is especially evident in data recorded using reflection acquisition geometry. This low signal-to-noise ratio is caused by signal attenuation due to geometrical spreading of the seismic wavefield, near-surface-generated noise, and amplitude absorption. Super-virtual refraction interferometry improves the quality of the first-break picks by enhancing the amplitude of the refracted waves and attenuating the amplitude of the random noise.Citation
Application of super-virtual seismic refraction interferometry to enhance first arrivals: A case study from Saudi Arabia 2012, 31 (1):34 The Leading EdgePublisher
Society of Exploration GeophysicistsJournal
The Leading EdgeAdditional Links
http://library.seg.org/doi/abs/10.1190/1.3679326ae974a485f413a2113503eed53cd6c53
10.1190/1.3679326