利用相干技术和三维可视化技术识别微小断层和砂体

Identification of micro-fault and sand body by using coherence technique and 3-D visualization.

随着地震勘探技术的不断提高 ,识别微小断层和砂体变成了至关重要的课题 ,为此近年发展起来一些与之相适应的地震处理和解释技术 ,其中相干技术和三维可视化技术应用较为广泛。在三维地震数据建库后 ,首先经相干处理得到相干信息数据体 ;然后 ,针对所研究的断层和砂体 ,切出有关相干数据体 ,加载到三维可视化中 ,调整透视参数 ,可清晰显示出断层的空间形态、砂体空间展布规律 ,为研究断层和储层提供了客观依据。

Currently,identification of micro-fault and sand body became a most important problem along with improvement on seismic prospecting technology.For this reason,seismic processing and interpretation technology suitable for it have been developed in recent years,among which the coherence technique and 3-D visualization technique have been widely used.First of all,coherent information volume has been obtained by using coherent processing after building 3-D seismic data base,then a piece of coherent volume has been cut and loaded on 3-D visualization aimed at studying fault and sand body.Space shape of fault as well as rule of space distribution of sand body can be clearly displayed after adjusting transparency parameter.It presented study of fault and reservoir with a objective base