摘要
断陷型盆地一般具有断裂破碎,构造复杂,物源短的特点,其沉积地层厚度横向变化快,致使地震反射特征在横向上变化较大,给地震资料处理解释带来很大的难度。如何在层序地层格架的基础上提取反映岩性变化的等时地震信息则越来越重要。从分析时间切片、层切片在断陷盆地应用中存在的问题入手,探讨一种在沉积地层厚度横向变化较大的三维地震数据体上提取等时地震属性信息的方法-地层切片。应用地层切片在海拉尔盆地贝西北地区大磨拐河组的河道识别和扇体识别中取得了很好的效果。
Fault depression basin generally had characteristics of fracture breaking,complicated structures,proximal sources,the thickness of sedimentary strata changed rapidly in horizontal direction,thus seismic reflection characteristics changed rapidly,it resulted in great difficulty for seismic data interpretation.How to extract the simultaneous seismic data reflecting the changes of lithology based on sequence stratigraphic framework was increasingly important.Based on the analysis of application of time slicing and slice layer in fault depression basin,a new method of extracting the simultaneous seismic information——stratal slicing was discussed,which was used in the sedimentary strata of 3D seismic data that the thickness changed rapidly in the horizontal direction.It is used for recognizing channel and fan body in Damoguaihe Formation of Beixibei Area of Hailar Basin and good effect is obtained.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2010年第6期62-67,共6页
Journal of Oil and Gas Technology
关键词
三维地震资料
岩性解释
地层切片
3D seismic data
lithologic interpretation
stratal slicing
