The proposed two-level description (TLD) describes images by a rough description and a detailed description to avoid improper spatial constrain c.

Application of 3D visualization technique to reservoir description of subtle hydrocarbon pool;

Study on method of lithologic trap reservoir description and its application.;

Thus the precise reservoir description is made in this block.

To realize the reservoir characterization of subtle oil/gas pool in continental sag basin, the Upper Paleozoic of Daniudi gas field was studied as a case by means of geological researches and geophysical prospecting and the geological researches were emphasized.

image content hierarchy modeling,semantic object automatic extraction,and semantic similarity measure.

In order to improve the universal of this system, and a describing layer between system and data source is established, design data-templates and style-templates to define the frame of data collection and interface style of the layer, which puts in practice UI engineering management and dynamic distribution method with consistent description and separation of application semantics.