Impacts of grid parameter selection on structural mapping

Error correction is a basic process during structural mapping.

This article studied the flow of structural mapping in 2D/3D work area, analysed the primary factors which depress the mapping precision in traditional methods for structural mapping, and then put forward the building of average velocity volume in the mapping flow.

Analysis of velocity anomaly and structure mapping;

In complex survey,conventional velocity-variant depth mapping method with Dix equation conversion does not get exact stacking velocity,is not fit for velocity conversion of steep stratum and therefore precision of depth mapping is low.

Geodetic inclination angle, large scale of velocity distortion caused by tectonic wings are eliminated , thus an accurate structural diagram .

Principle and method for making seismic structural map by stacked migration section;

One of the purposes of the seismic data interpretation is to automatically generate structural map.

This paper presents a method for seismic exploration in the Western Hubei-Eastern Chongqing Area,that is,a migrated profile is transformed into a depth section,which is directly used to structural mapping.