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Description

 

Import static shifts from text files

 

This procedure designed to import statics corrections (source, receiver, common midpoint) from ASCII file into GNavigator software. Statics correction of ASCII file contains tree columns: X-Y coordinates and statics correction value. Coordinates should be in accordance with the attribute of statics implementation\correction - source, receiver, common midpoint. Connected model that uses the output of statics corrections of this module is «Apply Static Shifts», which use statistic correction to traces.

 

Input data – ASCII files with statics correction

Output data – imported statics correction

 

Input data

Trace headers

 Link to geometry tables - trace headers that loaded into processing system (for example from «Load        SGY»).

 This parameter allows to check between the information in ASCII file and geometry tables.

Parameters

Sources file name

 Path and file name of ASCII file with source statics correction

Receivers file name

 Path and file name of ASCII file with receiver statics correction

CMP file name

 And file name of ASCII file with CMP statics correction

Use interpolation

 By default FALSE. If checked, the user should provide the interpolation parameters.

Step X

 Provide interpolation step in X direction

Step Y

 Provide interpolation step in Y direction

Minimum distance

 Minimum distance (meters), at the point where, for example, receiver from ASCII file will comply with        receiver from geometry table talking into account some inaccuracy in        coordinates

Time format

 Select the statics shift file time format from the drop down menu. Seconds or milliseconds

Coordinates type

 Choose from the available options from the drop down menu.

Coordinates unit

 Choose the coordinate unit from the drop down menu.

Subtract elevation statics

 By default FALSE. If checked, it will subtract the elevation statics from the input trace headers.

Datum

 Specify the datum value

V replacement

 Provide the replacement velocity value.