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高邮凹陷北斜坡中段发育四套辉绿岩侵入体,对地震资料造成了严重的干扰和屏蔽,使得地震资料品质变差。该区发育两套断裂系统,两套断层互相切割组合,造成构造破碎,断层多解性强,圈闭落实困难。针对该区地震资料解释中的这两大难题,我们针对性地从辉绿岩地震反射特征及其与正常地层地震反射的关系研究入手,以多元综合层位标定技术、断层综合识别技术和三维空变成图等技术为主要技术手段,探索出一套适合该区的地震综合解释方法,提高了构造解释的精度,在该区的油气勘探中取得了显著的效果。
The development of four diabase intrusions in the middle slope of northern slope of Gaoyou Sag caused serious interference and shielding of seismic data, resulting in poor seismic data quality. There are two sets of fault systems developed in this area. The two sets of faults are cut and combined with each other, resulting in structural crushing, multi-resolution faults and difficult implementation of the trap. Aiming at these two major problems in the interpretation of seismic data in this area, we start with the research on the seismic reflection characteristics of diabase and its relationship with the seismic reflection of normal strata. Based on the multi-component integrated horizon mapping, comprehensive fault identification and three-dimensional Space-to-map technology as the main technical means to explore a set of seismic synthesis for this area method to improve the accuracy of interpretation of the structure in the area of oil and gas exploration has achieved remarkable results.