Theory

The module performs muting of input seismic data using another seismic data as a mask (model). Within the module, the user can pick a mute or import previously picked mute points and apply on the stack.

Input data

Input DataItem

Input gather

connect/reference to the input gather. This input gather will be muted by using the mask gather.

Mask gather

this acts as a model gather. This model gather will be used to mute the input gather.

Parameters

There are no parameters required for this module so the user can ignore it.

Settings

Auto-connection

By default, TRUE(Checked).It will automatically connects to the next module. To avoid auto-connect, the user should uncheck this option.

Bad data values option { Fix, Notify, Continue }

This is applicable whenever there is a bad value or NaN (Not a Number) in the data. By default, Notify. While testing, it is good to opt as Notify option. Once we understand the root cause of it, the user can either choose the option Fix or Continue. In this way, the job won't stop/fail during the production.

Notify

It will notify the issue if there are any bad values or NaN. This is halt the workflow execution.

Fix

It will fix the bad values and continue executing the workflow.

Continue

This option will continue the execution of the workflow however if there are any bad values or NaN, it won't fix it.

Calculate difference

This option creates the difference display gather between input and output gathers. By default Unchecked. To create a difference, check the option.

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.

Output data

Output DataItem

Output gather

generates the mask muted output gather.

Gather of difference

generates the difference between the input and model gather

Information

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

Examples

In this example workflow, there are two stack sections (created by stack imaging module) with different mutes. Stack 1 will act as input gather and Stack 2 as Masked gather (model). The objective is to mute Stack 1 using Stack 2 as masked mute.

How to pick mute ?

• Launch Vista items of Mask mute module
• Go to GGatherItemMask window. Check Control item and see "Manual" option is checked.
• Hold MB1 or LMB (Left Mouse Button) and start picking the mute. Mute picks will appear on the Location map as dots.
• Execute Mask mute module.
• To save/clear mute picks, go to action items menu and choose the available options.

This picked mute can be used as a mask mute. Execute the module to get the output gather generated by the picked mute acted as mask.

Actions

Clear mute picking

clears the user picked mute picks.

Load mute picking

allows the user to import the previously picked mute picks. Browse the mute picks path.

Save mute picking

 - allows the user to save the user picked mute picks.

Video lesson

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

Related articles

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

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