西部复杂地区地震资料处理方法

塔中、焉耆盆地和巴彦浩特等西部地区的表层地震地质条件差,地下地质构造复杂。针对该类地区地震资料静校正问题突出、反射信号能量弱、各种干扰波极其发育以及偏移成像差的特点,在大量的分析、试验基础上,确定了一套以解决静校正、提高信噪比和改善偏移成像精度为主要目标的地震资料处理方法。经实际验证,此方法有效地提高了该类地区地震资料的信噪比和偏移成像的精度,取得了良好的效果。

THE TECHNIQUES FOR PROCESSING SEISMIC DATA FROM COMPLEX AREAS OF WESTERN CHINA

In some western China areas like Tazhong, Yanqi basin and Bayan Hot, the surface seismic geological conditions are bad, and the underground geological structures are very complex. Aimed at solving such prominent seismic exploration problems of these areas as static correction of seismic data, weak reflection signal, various well developed disturbing waves and bad migration imagery, the authors, based on repeated analysis and test, have developed a set of seismic data processing techniques. With this set of techniques, the static correction can be solved, the signal-to-noise ratio can be raised, and the precision of the migration imagery can be improved. Practice shows that the application results are satisfactory.