中国南方碳酸盐岩裸露区表层地震地质条件研究

Research on surface seismic geologic conditions of carbonate exposed area in South China

从岩石力学性质、产生弹性波有效能量理论研究出发,结合中国南方碳酸盐岩裸露区地表地形特点,给出了三个浅地表地质模型。理论上对三个模型表层地震地质条件、地震单炮采集记录品质进行研究和剖析。提出在实际工作中遇到这三个模型中地震资料品质变差时的解决方案,进而提高叠加效果和改善剖面品质,对中国南方碳酸盐岩裸露区进行地震资料采集具有一定的指导意义。通过地震勘探基础研究,无论是对常规油气地震勘探,还是非常规油气地震勘探都是适用的。

Based on rock mechanics properties and elastic wave effective energy theory researches and combined with surface topo- graphic feature of carbonate exposed area in South China, this paper gained three shallow surface geological models and carried out theoretical researches and analyses on the surface seismic geologic conditions and the seismic single shot records quality. This pa- per put forward the solutions for these three models to improve superimposed effect and profile quality when the quality get poor in practical work. It has significance for the seismic data acquisition in South China carbonate area. On researches of seismic explora- tion, these models are applicable either for the conventional petroleum seismic exploration, or for the unconventional oil and gas seismic exploration.