Origins of High-Frequency Scattered Waves near PKKP from Large Aperture Seismic Array Data

2002 ◽  
Vol 92 (2) ◽  
pp. 751-760 ◽  
Author(s):  
P. S. Earle
Keyword(s):  
High Frequency ◽  
Seismic Array ◽  
Array Data ◽  
Large Aperture

Acquisition/Processing: Machine learning-based deblending: Dispersed source array data example

2021 ◽  
Vol 40 (10) ◽  
pp. 759-767
Author(s):  
Rolf H. Baardman ◽  
Rob F. Hegge
Keyword(s):  
Machine Learning ◽  
High Frequency ◽  
Low Frequency ◽  
Seismic Interpretation ◽  
Salt Dome ◽  
Training Data ◽  
Array Data ◽  
Seismic Processing ◽  
Processing Machine ◽  
Source Array

Machine learning (ML) has proven its value in the seismic industry with successful implementations in areas of seismic interpretation such as fault and salt dome detection and velocity picking. The field of seismic processing research also is shifting toward ML applications in areas such as tomography, demultiple, and interpolation. Here, a supervised ML deblending algorithm is illustrated on a dispersed source array (DSA) data example in which both high- and low-frequency vibrators were deployed simultaneously. Training data pairs of blended and corresponding unblended data were constructed from conventional (unblended) data from another survey. From this training data, the method can automatically learn a deblending operator that is used to deblend for both the low- and the high-frequency vibrators of the DSA data. The results obtained on the DSA data are encouraging and show that the ML deblending method can offer a good performing, less user-intensive alternative to existing deblending methods.

Detection capabilities of the Yellowknife seismic array and regional seismicity

1971 ◽  
Vol 61 (4) ◽  
pp. 993-1008
Author(s):  
F. M. Anglin
Keyword(s):  
Seismic Array ◽  
Detection Level ◽  
Array Data ◽  
Regional Variations ◽  
Regional Seismicity ◽  
The Third ◽  
Detection Capabilities ◽  
The Mean

abstract Detection statistics from a search of 99 days of Yellowknife Array data have been obtained. The mean 50 and 90 per cent cumulative detection levels are found to be m 3.9 and m 4.2 for the third zone from Yellowknife. Regional variations in the detection levels have been found. The 50 per cent cumulative detection level ranges from m 3.8 for Asia to m 4.3 for the Aleutians. Regional values of the slopes of the recurrence curves for log N versus magnitude have been obtained, the mean slope for the third zone from Yellowknife being −0.99.

Sign in / Sign up

Export Citation Format

Share Document