Difference between revisions of "Seismic data and mapping structure"

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Whether doing 2-D or 3-D [[seismic interpretation]], the tasks are fundamentally the same. The work can sometimes be done by hand for [[Mapping with two-dimensional seismic data|2-D data]] (paper sections and manual contouring of maps) but virtually requires computer assistance for 3-D data. The recipes described on the pages that follow apply to hand or computer work.
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Whether doing 2-D or 3-D [[seismic interpretation]], the tasks are fundamentally the same. The work can sometimes be done by hand for [[Mapping with two-dimensional seismic data|2-D data]] (paper sections and manual contouring of maps) but virtually requires computer assistance for [[Three-dimensional seismic method|3-D data]]. The recipes described on the pages that follow apply to hand or computer work.
  
 
==Four basic techniques==
 
==Four basic techniques==

Revision as of 15:39, 30 April 2014

Exploring for Oil and Gas Traps
Series Treatise in Petroleum Geology
Part Predicting the occurrence of oil and gas traps
Chapter Interpreting seismic data
Author Christopher L. Liner
Link Web page
Store AAPG Store

Whether doing 2-D or 3-D seismic interpretation, the tasks are fundamentally the same. The work can sometimes be done by hand for 2-D data (paper sections and manual contouring of maps) but virtually requires computer assistance for 3-D data. The recipes described on the pages that follow apply to hand or computer work.

Four basic techniques

There are four basic techniques for getting structure from seismic data (the names are not standard).

Technique Description
Classic Mapping a surface of interest (from data) using average velocities
Modified Classic Mapping a surface of interest using a densely drilled shallow horizon, avoiding the weathering layer at the earth's surface
Migrated Depth Mapping an area using a 3-D seismic data cube with the vertical axis converted to depth (commonly used in complex areas but needs manual tweaking to match well control to seismic data)
Volumetric Depth Conversion Mapping an area using migrated seismic data (with time axis) converted to a depth cube using a V ( X, Y, Z ) velocity model

See also

External links

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Seismic data and mapping structure
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