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

作　　者：廖文婷[1] 郭廷超[1] 许冲[1] 潘成磊[1] LIAO Wenting;GUO Tingchao;XU Chong;PAN Chenglei(Geophysical Research Institute of Jiangsu Oilfield Company,SINOPEC,Nanjing 210046,China)

机构地区：[1]中国石化江苏油田分公司物探研究院,江苏南京210046

出　　处：《复杂油气藏》2024年第2期169-173,共5页Complex Hydrocarbon Reservoirs

基　　金：中国石化科技部项目“提高苏北盆地隐蔽油藏描述精度地球物理关键技术”(P21108)。

摘　　要：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.

关 键 词：压缩感知 反射系数反演 双向拓频技术 隐蔽油气藏勘探 

分 类 号：P631[天文地球—地质矿产勘探]