RGB 分频技术在断块油藏断层识别中的应用

摘要

应用三色混相分频技术，对海塔盆地贝中油田断裂体系进行了重新研究。首先，应用 S 变换对研究区三维地震数据进行分频处理，然后优选出了15，35，50 Hz 三套频率调谐数据体进行 RGB 模式混合，制作了南一段地层的三色混相分频切片。与原断裂体系认识相比，解决了破碎带、陡坡带部位断层识别精度低的问题，小断层识别能力明显提高。属性切片重新揭示了贝中油田应为走滑拉分作用形成的断裂系统。%By applying the three colors mixed phase (RGB)frequency division technology,we have a re -recognition to the fault systems of Beizhong Oilfield in Hailaer Basin.First of all,we carried out frequency division processing of 3D seismic data by S transformation,and then made the RGB frequency division slices of the first member of Nan Formation by mixing RGB modes based on three sets of frequency tuning data volum of 15 Hz,35 Hz and 50 Hz.Compared with the pre-liminary faultsystem knowledge,the fault identification accuracy of the fracture zone and steep slope zone was increased ob-viously.The seismic attribute slices confirmed that the Beizhong Oilfield should be the fault system formed by the strike -slip and pull -apart.