压缩感知拓频技术在SHB地区应用

Application of compressed sensing frequency extension technology in the SHB area

金湖凹陷北部SHB地区滩坝砂等隐蔽油气藏较发育,目前地震资料在该类油气藏勘探方面存在不足,不能满足目前精细刻画砂体的要求。压缩感知地震频带双向拓频技术是一种在压缩感知域通过反射系数反演,实现地震频带有效展宽的创新性技术,基于该技术在SHB地区地震资料处理、解释、反演及砂体识别中的应用,有效提升了上述隐蔽油气藏勘探的精度,为后续该技术的应用推广奠定了基础。

The subtle oil and gas reservoirs,such as beach bar sand in the SHB area of northern Jinhu Sag,are relatively developed.At present,the seismic data are insufficient to explore this kind of oil and gas reservoir,which cannot meet the requirements of fine characterization of sand bodies.The bidirectional extension technology of compressed sensing seismic frequency band is an innovative technology that effectively broadens the seismic frequency band through reflection coefficient inversion in the compressed sensing domain.Applying this technology in the processing,interpretation,and inversion of seismic date and identification of sand bodies in the SHB area effectively improves the accuracy of exploring the above subtle reservoirs.It lays a foundation for the subsequent application and promotion of this technology.