Concatenate by time

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Merge a few seismic stacks in time domain

 

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This module is used to concatenate two seismic datasets in time domain. For example,to make a composite section, to connect fragments cut with different processing parameters in the time domain

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Input gather - connect/reference to one of the seismic section

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Additional input gather - connect/reference to the other seismic section which needs to be concatenated with input gather.

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Time - specify the starting merge time in ms. The boundary of concatenated data. The time value where one piece of data ends and joins another

Overlap area - specify the time overlap in terms of samples.

Weighting overlap area - Average weight of overlapping. Activation of this mode provides a smooth transition from one piece to another

Use VRMS - by default, FALSE. Velocity information is used in case the input data is Pre-Stack data.

Use VRMS - true - if the user checks this option, the user must provide the Vrms velocity model along with V0.

Vrms model - connect/reference to the input Vrms model.
V0 - specify the replacement velocity value.

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Number of threads - One less than total no of nodes/threads to execute a job in multi-thread mode. Limit number of threads on main machine.

Skip - By default, FALSE(Unchecked). This option helps to bypass the module from the workflow.

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Gather - OUT - generates output gather after concatenation.

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There is no information available for this module so the user can ignore it.

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In this example, we'll read two datasets. 1st dataset is without band pass filter. 2nd dataset is with band pass filter applied. Now, we want to concatenate both the datasets at certain time.

 

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Here, we would like to add data below 2200ms(green line) of the 2nd dataset to 1st dataset with 60ms as taper.

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Likewise, the user can prepare for the prestack data also

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Update view - this action item updates the stack display with merge line displayed on the top of the seismic section. If the user didn't click this option, the merge line (green line) will remain the same.

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YouTube video lesson, click here to open [VIDEO IN PROCESS...]

 

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Yilmaz. O., 1987, Seismic data processing: Society of Exploration Geophysicist

 

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