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Introduction

Depth conversion of time data into depth data can also be performed for 2D seismic sectionslines. It utilizes in principle the same basic techniques as desribed in Depth Conversion of time surfaces. In addition extra attention is paid to transforming the wavelets into a new wavelets form using spline based algorithms.

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On this page:

Table of Contents

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Info
titleStandard formula for depth conversion:
  • Seismic_sectionlines_in_depth = Seismic_sectionlines_in_time x Velocity

"Depth conversion of seismic in a folder section

The seismic sections are linesare depth converted according to the corresponding velocity field. The velocity field describing the input velocity can be:

Info
titleVelocity options:
  • Time-velocity cube
  • Stacking velocity data along the same line
  • Lookup curve fory (time) to x(depth)
  • Constant velocity in meter per second

Command menus for seimic depth conversion

Seismic lines (or seismic sections as they are also called) is organized under a folder having the schema Seismic Data. The seismic lines themselves have schema Seismic Line.

The following command menus for depth conversion of seismic lines are present:

Note
tileCommand menus for depth conversion of *Seismic Lines*

  • seismic lines in a folder->Depth conversion of seismic in a folder
  • seismic line->Seismic depth conversion

Depth conversion of seismic

H2. Specify to which depth value depth conversion is to be performed.

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To achieve a satisfactory depth conversion apply a smooth velocity field or a smooth velocity cube. It is assumed that the velocity data is covering the seismic outline. If not, the depth conversion will use the nearest velocity data that is covered by the outline.

A new outline is generated after depth conversion. This new outline makes a rectangular frame from top to the specified depth.

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