山地三维地震勘探技术

3D Seismic Prospecting Technology Used in Mountainous Areas

山区地形变化大,基岩裸露,山谷内多冲积物,地震施工困难,各种波干扰严重,记录质量较差。根据山区三维地震勘探的技术特点,有针对性地对三维地震的激发条件、接收条件、地震资料处理等常规问题进行了分析,并提出了相应技术方案及施工措施。以山西省某山区三维勘探为例,介绍了山区三维地震勘探施工方法及处理效果,为进一步开展山地三维地震勘探积累了经验。

The relief in mountainous area is changing rapidly; bedrock outcropped, while in valleys alluvium infilling, thus operation of seismic prospecting is rather difficult, various waves seriously disturbing reciprocally and rather poor recording quality. Based on technological characteristics of the 3D seismic prospecting in mountainous areas, purposely analyzed conventional 3D seismic shot and receiving conditions, seismic data processing, put forward corresponding technological schemes and operating measures. To take a 3D seismic prospecting in a mountainous region in Shanxi Province, introduced mountainous area 3D seismic prospecting operational methods and processing effects, thus piled up experiences for the further prospecting in the mountainous area.