利用前积角“玫瑰花”图判断前积体主物源方向

发布时间：2018-04-27 23:16

本文选题：前积角“玫瑰花”图 + 前积体　；参考：《石油地球物理勘探》2017年01期

【摘要】：在根据前积反射结构进行物源方向判别时,更多的是依靠观察大量地震剖面进行的定性判别,没有一套直观、可操作的方法和流程。为此,借鉴构造解释中"玫瑰花"图的制作原理,提出了判别前积体主物源方向的前积角"玫瑰花"图,并归纳、总结了前积角"玫瑰花"图的作图思路和方法流程,包括前积体中心点的确定、正北基准剖面前积角测量、与基准剖面平行方位前积角测量、基准方位前积角计算、旋转基准剖面求取其他方位前积角、成图等6个步骤。利用前积角"玫瑰花"图对渤海湾盆地BZ12构造区前积体的主物源方向进行了分析,结果表明,前积体Ⅰ、Ⅱ的主物源方向分别为10°~20°、340°~350°,表明两者源自不同的物源体系。
[Abstract]:In the discrimination of the source direction according to the front product reflection structure, more depends on the qualitative discrimination of a large number of seismic sections, and there is no set of intuitionistic and operable methods and processes. For this reason, drawing on the principle of making the "Rose" diagram in the structural interpretation, a "Rose" diagram of the front product angle of the main source direction of the former integror is proposed and summed up. This paper summarizes the drawing ideas and method flow of the "rose flower" map of the front product angle, including the determination of the center of the front product body, the measurement of the front product angle in the front of the benchmark section, the measurement of the front product angle in parallel with the reference section, the calculation of the front product angle of the base position, and the 6 steps of obtaining the other azimuth front product angles by the rotating datum profile, and using the "Rose" map of the front product angle. The main source direction of the precursor of the BZ12 tectonic zone in the Bohai Bay basin is analyzed. The results show that the main source direction of the precursor is 10 ~20 degrees and 340 degrees ~350 degrees respectively, indicating that both of the two are derived from different source systems.

【作者单位】：中国地质大学构造与油气资源教育部重点实验室;中国地质大学(武汉)资源学院;中海石油有限公司天津分公司;
【基金】：国家自然科学基金项目(41572084)资助
【分类号】：P631.4

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