420 Posts in 208 Topics by 63 members
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Supergather
Hello, I'm currently working with the CVA, and I would like make a supergather of 2 CDPs. In the help section, I don't get how to specify the parameters in the "Weighting over CDPs". Thank you, Matt. 6 months ago |
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Reverberation/Bubble after Butterworth filter
I already tested smoother slopes for the filter (I attach some examples including the ones you suggested) but I still get bubble-kind noise. I also tried the duswell module, precisely taking the 02_swell.job as model, but even if I tested different values for the Duswell's parameters, the results were as noisy as the raw data (image attached). I think I'll follow your advice and send the jobflow and a couple of shots to your support service to see if you can find the problem. 6 months ago |
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About Resstat module
Very well, thank you for your answers. 6 months ago |
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Reverberation/Bubble after Butterworth filter
What does the frequency spectrum of the data look like? You could test a range of different Butterworth filters to see what result they have on the data - for example try making the lower bound of the filters a bit wider i.e. maybe 1-7 and 5-12 instead of 1-3 and 5-7, you could also try increasing the pass band - eg 5-15-150-160 etc. If you are trying to remove swell noise you could try the DUSWELL module in GLOBE Claritas and see if this returns better results for the data. There is an examp... 6 months ago |
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About Resstat module
We don't have any article references for the RESSTAT module, it just follows the generic CDP-aligned residual statics methodology. Seismic Data Analysis by Öz Yilmaz, the residual statics corrections section, might be a good reference source. 6 months ago |
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About Resstat module
Ok, thank you the precision ! Is it possible to have the articles on which you based the resstat module ? Thank you for your answer. 6 months ago |
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Reverberation/Bubble after Butterworth filter
Hi, I'm processing some vintage MCS data (160 channel-25m receiver distance) and when I perform an initial Butterworth filter just to remove swell noise and avoid aliasing, I get some kind of low-frequency noise (like a reverberation or bubble) that messes up and worsens the data, instead of cleaning it. I attach the original shot and the shot and the same shot after 2 different Butterworth filters: 1-3-100-120 and 5-7-100-120 I also tried to make my own Butterworth filter with more points us... 6 months ago |
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About Resstat module
RESSTAT ia a CDP-aligned residual statics module while SPSTAT is a stack power residual statics module. SPSTAT2 is a replacement for SPSTAT introduced in the V6.8 beta releases; it retains or improves on the functionality of the older module, but is much easier to use. The RESSTAT module is [b]not[/b] based on the same articles listed in the SPSTAT module's help documentation. 6 months ago |
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About Resstat module
Hi, I would like to know if the resstat module is based on the same articles than the spstat module. Especially the J.Ronen&J.Claerbout 's article. Thank you in advance, Matt. 6 months ago |
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Fifth V6-8 beta release - 28 May 2018
On the 30th of April 2018 we completed another release sprint of the development version of GLOBE Claritas (V6-8) and were able to provide a download for the latest beta release to our Linux clients. Some of the new functionality and features in this beta release included:- • Completed development of support/metadata file linkage to HDF5 datasets for improved QA/QC of processing flows, simplified support file selection, and improved interactivity of log files. The following video on our Y... 7 months ago |
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