Visualizing VSP data

[salsa360]

Hi Tony,

How do I display/plot VSP data using segysak?

Cheers Kush

[trhallam]

Hi,

Have you managed to load the vsp data with segysak? If so, then you can use the plotting methods described in the documentation or the tutorial.

[salsa360]

Hi Tony,

I loaded the VSP data OK as shown in the attachment and I've tried to modify your gather display to show the VSP display:

VSP = segy_loader(source + file, cdpx=73, cdpy=81, vert_domain="TWT")

This runs OK.

Display VSP

fig, axs = plt.subplots(figsize=(20, 10)) axs.imshow( VSP.isel(cdp=10) .data.stack(stacked_offset=("cdp", "twt")) .values,

twt = 3000,

cmap="seismic",
aspect="auto",

)

However, I get the following error: NameError: name 'VSP' is not defined

Stumped at the moment.

Cheers Kush

On Tue, Jan 11, 2022 at 4:20 PM Tony Hallam @.***> wrote:

Hi,

Have you managed to load the vsp data with segysak? If so, then you can use the plotting methods described in the documentation or the tutorial.

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[trhallam]

If you reply to Github issues via email you can't add attachments. Perhaps better to have the discussion here

https://swung.slack.com/archives/C01472D5QGP

It's not clear to me why VSP raises a NameError here, but I suspect you are not loading the data correctly.

Can you use segy_header_scan and copy paste the full output dataframe? Do any of the byte locations look like the information you need for understanding the geometry of your VSP?

[trhallam]

bump @salsa360

[trhallam]

Closing due to inactivity.