三参数小波多尺度蚂蚁追踪技术研究与应用

Study and application of three-parameter wavelet multi-scale ant tracking technology

蚂蚁追踪技术是近年发展起来的一项新型三维地震解释技术,可实现三维地震资料中断层的精细解释。由于断层具有不同的尺度和规模,该技术只是对原始地震数据所能刻画的所有尺度的断层综合在一起进行追踪,不具有针对不同级别的断层进行变尺度分析的能力。针对这一问题,将三参数小波多尺度分析应用到蚂蚁属性体的提取和解释中,提出了一种三参数小波多尺度蚂蚁追踪技术,并应用该技术对实际地震资料进行了断层精细解释。结果表明,大尺度蚂蚁追踪属性体较好地刻画了大尺度断层的展布及其特征;小尺度蚂蚁属性体对非连续性细节信息显示更丰富,能够反映出原始数据体不易识别的一些微小断层。因此该技术可有效提高断层解释的精度和可靠性,能够满足不同勘探开发阶段对断裂系统解释的要求。

Ant tracking technology is a newly developed technology for 3Dseismic data interpretation,and fine fault interpretation can be well accomplished by using this technology.Since faults have different scales and sizes,and this technology can only synthetically track all scale of faults together which are depicted by original seismic data.So this method does not have the variable scale analysis ability for different levels of faults.To solve this problem,we apply three-parameter wavelet multiscale analysis to the extraction and interpretation of ant tracking attributes,and propose a three-parameter wavelet multiscale ant tracking technology.Applications of this method to real fault system interpretation show that large-scale ant tracking attributes mainly depicte the distribution and characteristic of large-scale faults,while smaller-scale ant tracking attributes display more abundant non-continuous detail information and reflect some minor faults which can not be identified easily from original seismic data.Therefore,this technology can effectively improve accuracy and reliability of fault interpretation and meet the requirements of fracture system interpretation in different stages of exploration and development.