单点高密度地震采集提高分辨率的方法

The Method to Improve Resolution by Single-point High Density Seismic Acquisition

以东风港地区首次大规模采用陆用压电检波器进行单点接收采集为例,对适应单点高密度采集的物理参数提取、模型建立、观测系统参数及采集资料效果等进行了研究,认为单点陆用压电检波器接收配以小面元、高覆盖、高密度、全方位的观测系统,可以使地震资料在分辨率、信噪比、宽频带等方面有大幅度提高,低序级断层、地层尖灭点、薄储集层等地质现象得到有效识别,为老区开发挖潜和高精度地震勘探提供了一条可行性的指导方向。

Taking the first large-scale use of land piezoelectric detector for single point acquisition in Dongfeng Port area as an example,this paper studies the physical parameter extraction for single point high-density acquisition,model establishment,observation system parameters and data acquisition effect and believes that single-point land piezoelectric detector with small surface element and high coverage density comprehensive observation system can make the seismic data improved greatly in resolution,signal-to-noise ratio and broadband and the geological phenomenon identified effectively such as low level fault,stratigraphic pinchout point and thin reservoir.Which has provided a feasibility of guidance for the old oilfield development potentialities and high precision seismic exploration.