Summary

Facing structural characters of surface in complex mountain areas and effect of difference in travel path between first break and reflected wave on static corrections, the paper presents a method for step calculation of statics which breaks convention that the statics must be calculated to final datum only by one step. The paper also illustrats implementing meaning and steps of the method and its QC tools . The method has important meaning for solving the problem of static corrections in complex regions.

Introduction

Because of poor S/N ratio of reflection in complex regions, the QC of field static corrections by first break is often carried out on common-shot-point (CSP) gather.

Keywords:
replacement velocity, application, precision, correction velocity, intermediate reference datum, correction, tomographic inversion, upstream oil & gas, residual static correction, datum
Subjects:
Reservoir Characterization, Seismic processing and interpretation
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2003. Society of Exploration Geophysicists
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