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 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. | + | 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. |
==Four basic techniques== | ==Four basic techniques== | ||
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* [[Preparing seismic data for mapping]] | * [[Preparing seismic data for mapping]] | ||
* [[Creating an integrated structure map]] | * [[Creating an integrated structure map]] | ||
+ | * [[Mapping with two-dimensional seismic data]] | ||
==External links== | ==External links== |
Revision as of 15:37, 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
- Preparing seismic data for mapping
- Creating an integrated structure map
- Mapping with two-dimensional seismic data