Abstract:Steep anticline is complex because it underwent severe tectonic movements.The steep anticline may be characterized by steep upper beds,less steep lower beds,unsyrnmetrical limbs,reversed and overthrust beds, drag structure at downthrawn side of fault,varied bed thicknesses and nearly horizontal fault plane.Besides,there is terrible interference of seismic waves on the seismic records from the steep anticline area,and its position and shape on seismic section are great1y distorted.Therefore,the understanding of its geological regularity and seismic characteristic is a basic requirement for us to make a good seismic interpretation of the steep anticline.The geological and seismic characteristics of the steep anticline are described;the complexity and feasible method of seismic interpretation of steep anticline are illustrated in the paper.Three points are suggested:(1)both the drilling data and the surface geological data should be used in the seismiz interpretation of the steep anticline;(2)a good cooperation of interpretation and data processing is very necessary;(3)the interpreration result must be checked using the forward model.
收稿日期: 1986-11-18
引用本文:
杨治楷. 四川东部陡构造地震资料解释[J]. 石油地球物理勘探, 1987, 22(6): 705-713.
Yang Zhikai. The seismic interpretation of steep anticline in east Sichuan. OGP, 1987, 22(6): 705-713.