[OpendTect_Users] Scaling depth

[Mike Stone]

Nifty,

Can you do Math on the headers this way?
(i.e. feet > meters the offset header)


Mike Stone
832-768-0884
MStone at ACT3Solutions.com


On Tue, Apr 10, 2012 at 10:30 AM, Friso Brouwer <friso.brouwer at dgbes.com>wrote:

> I agree with Mike, easiest is to reimport the data , choose "No the file
> is not segy rev1" when prompted during the import, this will give you most
> options to overrule any segy headers that need to be overruled.
>
> Regarding Salva's suggestion I also wanted to mention that the current
> development release (430d) has included a tool to manipulate segy headers
> values (accessed via the segy import and export). Probably you will not
> need that tool to import this 2D data correctly, but it is a will help you
> to prepare incorrect segy files for other applications or add header values
> that are not set in the regular OpendTect segy exports - e.g. adding an
> offset or azimuth header to an seismic attribute volume generated from a
> specific partial stack.
>
> Cheers,
>
> Friso
>
>
> On Sun, Apr 8, 2012 at 8:17 AM, Salva. <salvanet at wanadoo.es> wrote:
>
>> You could use seisee free application to update binary header of segy
>> files.
>>
>> http://www.dmng.ru/seisview/
>>
>> Salva
>>
>> El 5 de abril de 2012 17:57, Mike Stone <mstone at act3solutions.com>escribió:
>>
>> Jim,
>>>
>>> Can't you just override the sample rate on load?
>>>
>>> Take a look at the overrules tab and see if that will work.
>>>
>>>
>>> If you actually need to stretch and interpolate it, I think you can do
>>> it but it might be tricky.
>>>
>>>
>>> Mike Stone
>>> 832-768-0884
>>> MStone at ACT3Solutions.com
>>>
>>>
>>>
>>> On Thu, Apr 5, 2012 at 10:23 AM, Jim Flocks <jflocks at usgs.gov> wrote:
>>>
>>>> I have some old 2D analog profiles that were scanned and converted to
>>>> segy
>>>> format.  I successfully imported them into OD, but unfortunately during
>>>> the
>>>> scanning process a wrong sweep was applied, 0.25 seconds instead of 0.5
>>>> seconds
>>>>
>>>> Can I use the Mathematics Attribute in OD to rescale the vertical (e.g.
>>>> Z*2)?
>>>>
>>>> Thanks,
>>>>
>>>> Jim
>>>>
>>>>
>>>>
>>>>
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>>>
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>>
>>
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>
>
>
> --
> Friso Brouwer
> COO-Americas
> dGB Earth Sciences
>
> +1 281 240 3939 (o)
> +1 281 240 3944 (f)
> friso.brouwer at dgbes.com
>
>
>
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