龙门山双复杂区表层结构调查方法研究
Study on investigation method of surface structure in double complex area of Longmen Mountain
刘远志 1刘胜 1黄秀举 1梁勇 1陈兵 1王聪 1张志锋1
作者信息
- 1. 中国石化石油工程地球物理有限公司南方分公司,成都 610041
- 折叠
摘要
龙门山山前带地表地质条件复杂,浅表层速度及厚度差异大,给激发、接收和静校正等工作带来较大困难.表层调查工作直接影响到地下介质成像效果.为使该地区进行的地震勘探攻关能够获取准确的静校正量数据,给井深设计提供依据,研究适合该区域的表层调查方法,结合地质剖面、浅震、小层析、地面微测井、钻井取心、高密度电法、三分量共振表层调查方法的工作原理,分别应用不同方法做比对,分析了不同调查方法的应用效果.通过不同表层调查的比对,分析了不同方法的适用范围,为该区选择合适的表层调查方法及方法参数选取提供依据,同时为其他地表复杂区域进行表层调查提供参考.
Abstract
The surface geological conditions in the piedmont of Longmen Mountain are complex,and the shallow surface velocity and thickness vary greatly,which brings great difficulties to the shooting,reception,and static correction.Surface in-vestigation directly affects the imaging effect of underground media.In order to obtain accurate static correction data for seis-mic exploration in this area and provide the basis for well-depth design,the surface investigation methods suitable for this area are studied.Combined with the working principles of geological profile,shallow earthquake,small tomography,surface micro logging,drilling coring,high-density electrical method,and three-component resonance surface investigation methods,differ-ent methods are compared,and the application effects of different investigation methods are analyzed.Through the comparison of different surface investigations,the application scope of different methods is analyzed,which provides a basis for the selec-tion of appropriate surface investigation methods and method parameters and provides a reference for surface investigation in other complex surface areas.
关键词
双复杂区/表层结构/地质调查/浅震/小层析/微测井/钻井取心/高密度电法/三分量共振Key words
dual-complex area/surface structure/geological survey/shallow seismic/small tomography/micro-log-ging/drilling core/ERT/three component resonance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据