Travel time table quality control (PSDM stage)

Theory

TT viewer is an auxiliary module that performs only quality control of travel time table, which is used as input data for depth migration process (Kirchhoff PreSDM - file in/out - migration TT). For example, in case of an issue with migration execution (or resulting CIG gathers) we can use TT viewer to make sure everything is correct with travel time table data set: there is no only zero (all samples 0) or some other incorrect TT data behavior. TT file is calculated by Time table calculation for tomo update, Time table calculation.

Input data

 File name TT - input trace time table file (TT format).

Parameters

Show tt data - enable for TT visualization, otherwise visual vista items will be empty.

Settings

Number of threads

amount of treads for calculation, By default: N-1.

Skip - switch-off this module (do not use in the workflow).

Output data

Header table

table with trace headers.

Information

Apprx output size

approximate size o the output Time Table file on the disk.

Calculated bins

how many bins were calculated.

TT type

travel time table type: binary or seismic (*.gsd).

Sample ratio

travel time table sample ration.

Samples count

number of samples of travel time table.

Actions

There are no action buttons and Visual Vista Items.

Examples

The workflow example:

There are three visual vista items: 1) location map where w can do CMP point selection for its TT visualization, 2) header table and 3) image point gather:

Video lesson

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

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