Generalized screen method for prestack time migration;

Spectral-element method for prestack reverse-time migration;

Analysis and application of prestack depth imaging technique.;

The Method Study of Pre-stack Reservoir Parameter Inversion in Dual Phase Media;

In some areas because sand layer was thin in target zones,sonic wave velocity was high in shales,traditional ρimpedance inversion could not be used to distinguish the overlapping of sand and shale rock impedance values,could not meet the needs of subtle reservoir exploration in complex geologic conditions,while pre-stacke elastic parameter inversion had high resolution capacity to lith.

Study on AVO pre-stack inversion technology;

In recent years,seismic pre-stack inversion becomes the hot point of seismic attribute and inversion study.

Application of prestack inversion in Sulige area;

The prediction accuracy for the effective reservoir can be improved by using prestack inversion to calculate elastic impedance and elastic parameters.

The common-used prestack inversion often carries out approximate linear processing for non-linear objective function, which makes inverted results approach to the global optimum solution; otherwise, it is easy to fall into local minimum.