反射和折射波联合地震勘探在JR地区的应用

Application of joint reflection and refraction exploration in JR area

Geophysical Technology Institute of SINOPEC Jiangsu Oilfield, Nanjing 210046, China

JR地区地质构造复杂, 野外采集的地震资料信噪比低。虽然在这一地区进行了多年的地震勘探方法、地震资料处理和解释的研究, 但效果并不理想。为此, 在该区开展了反射和折射波联合地震勘探, 在采集方法、反射波处理方法和折射波处理方法等方面进行了试验研究, 得到了适合于该地区的采集方式和处理手段, 并应用采集、处理、解释一体化的工作模式, 使资料的信噪比得到了提高, 获得了清晰的地下构造成像。

The seismic data is of low signal-to-noise (S/N) ratio in JR area due to the complex subsurface structures. Although research of seismic survey technology has been carried out for many years, desired results have not been achieved yet. This paper describes the joint reflection and refraction exploration performed in the area. With intensive research and test, a suite of data acquisition and processing methods and an integration workflow of data acquisition, processing, and interpretation have been developed, which leads to improvement of S/N ratio for the acquired data and clear images of subsurface structures.