Difference between revisions of "3-D seismic data views"

From AAPG Wiki
Jump to navigation Jump to search
 
(6 intermediate revisions by 2 users not shown)
Line 6: Line 6:
 
  | part    = Predicting the occurrence of oil and gas traps
 
  | part    = Predicting the occurrence of oil and gas traps
 
  | chapter = Interpreting seismic data
 
  | chapter = Interpreting seismic data
  | frompg  = 12-1
+
  | frompg  = 12-11
  | topg    = 12-29
+
  | topg    = 12-11
 
  | author  = Christopher L. Liner
 
  | author  = Christopher L. Liner
 
  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch12/ch12.htm
 
  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch12/ch12.htm
Line 16: Line 16:
 
==Vertical slices==
 
==Vertical slices==
  
As it arrives on tape from the [[Basic seismic processing|processor]], 3-D seismic data are organized into lines composed of [[trace]]s. In the computer these are all merged into a dense cube of data. The data cube can be sectioned, or sliced, in several ways. Vertical cuts through the data cube are called '''lines''' or '''sections'''. For marine surveys, [[in-line]] is the direction of boat movement (parallel to receivers) and [[cross-line]] is perpendicular to boat movement. For land surveys, there is no uniform definition of in-line and cross-line. A vertical section that is neither in-line nor cross-line is an arbitrary line and may be oriented very irregularly  as needed to pass through locations of interest.
+
As it arrives on tape from the [[Basic seismic processing|processor]], 3-D [[seismic data]] are organized into lines composed of [[trace]]s. In the computer these are all merged into a dense cube of data. The data cube can be sectioned, or sliced, in several ways. Vertical cuts through the data cube are called '''lines''' or '''sections'''. For marine surveys, [[in-line]] is the direction of boat movement (parallel to receivers) and [[cross-line]] is perpendicular to boat movement. For land surveys, there is no uniform definition of in-line and cross-line. A vertical section that is neither in-line nor cross-line is an arbitrary line and may be oriented very irregularly  as needed to pass through locations of interest.
  
 
[[:file:interpreting-seismic-data_fig12-5.png|Figure 1]] shows how the vertical slices are labeled, depending on their orientation.
 
[[:file:interpreting-seismic-data_fig12-5.png|Figure 1]] shows how the vertical slices are labeled, depending on their orientation.
  
[[file:interpreting-seismic-data_fig12-5.png|thumb|{{figure number|1}}Examples of vertical and horizontal slices. From Liner.<ref name=Liner_1999>Liner, Chris, Elements of 3-D Seismology: Tulsa, PennWell.</ref> Courtesy PennWell.]]
+
[[file:interpreting-seismic-data_fig12-5.png|300px|thumb|{{figure number|1}}Examples of vertical and horizontal slices. From Liner.<ref name=Liner_1999>Liner, C., 1999. Elements of 3-D Seismology: Tulsa, PennWell.</ref> Courtesy PennWell.]]
  
 
==Horizontal slices==
 
==Horizontal slices==
Line 46: Line 46:
 
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]
 
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]
  
[[Category:Predicting the occurrence of oil and gas traps]]
 
 
[[Category:Interpreting seismic data]]
 
[[Category:Interpreting seismic data]]
 +
[[Category:Geophysical methods]]
 +
[[Category:Treatise Handbook 3]]

Latest revision as of 19:06, 27 January 2022

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

Vertical slices

As it arrives on tape from the processor, 3-D seismic data are organized into lines composed of traces. In the computer these are all merged into a dense cube of data. The data cube can be sectioned, or sliced, in several ways. Vertical cuts through the data cube are called lines or sections. For marine surveys, in-line is the direction of boat movement (parallel to receivers) and cross-line is perpendicular to boat movement. For land surveys, there is no uniform definition of in-line and cross-line. A vertical section that is neither in-line nor cross-line is an arbitrary line and may be oriented very irregularly as needed to pass through locations of interest.

Figure 1 shows how the vertical slices are labeled, depending on their orientation.

Figure 1 Examples of vertical and horizontal slices. From Liner.[1] Courtesy PennWell.

Horizontal slices

Horizontal or subhorizontal cuts through a seismic data cube are called horizontal slices. As illustrated in Figure 1, horizontal slices can be

  • Time slices (horizontal cuts of a time cube)
  • Depth slices (horizontal cuts of a depth cube)
  • Horizon slices (from tracking)
  • Fault slices

Depth slices are only available if the data delivered from the processor are converted to depth. Fault slices require very high-quality data with clear, mappable fault surfaces. Both are rarely encountered.

See also

References

  1. Liner, C., 1999. Elements of 3-D Seismology: Tulsa, PennWell.

External links

find literature about
3-D seismic data views
Datapages button.png GeoScienceWorld button.png OnePetro button.png Google button.png