物探及地质资料在地震解释中的综合应用

STUDY ON SEISMIC SECTION INTERPRETATION WITH COMBINATION OF GEOPHYSICS AND GEOLOGY

以A盆地B凹陷为例 ,提出了综合利用物探和地质资料进行地震资料解释的方法。在对地震资料的解释过程中 ,将每一环节的物探资料和地质资料紧密结合 ,能够真正提高解释成果的可靠性。在层位标定中 ,联合运用层序地层学标定法、多井多层合成记录标定法、模型综合标定法 ,保证层位标定的准确性 ;在速度分析中 ,采用各种先进技术和方法 ,综合分析物探、地质、测井资料 ,确保对研究区的地震速度有正确的认识 ;在构造解释中 ,一方面需要用地质模式来指导地震解释 ,另一方面又要通过地震和地质资料的综合研究来修改和完善地质模式。大断层的解释是构造解释的关键 ,地震解释结果必须既符合地震资料的实际 ,又遵循从区域到局部的地质规律。

A combination method of geophysics and geology was applied to seismic interpretation, taking some sag of a basin as an example. In order to get an accurate interpretation, the geological models and calibration methods for sequence stratigraphy, synthetic records of multi layers and multi wells should be adopted comprehensively. Correct recognition of velocity is based on complete digestion of all sorts of data. In the process of tectonic interpretation, the geological models should be used for determing seismic structural interpretation, and the models should be modified and accomplished by using integrattive study of geophysics and geology. The interpretation of main faults is the key of seismic structural interpretation. The interpretation result must be in accordance with actual seismic data and follow the geological rules.