特种油气藏2025，Vol.32Issue(3)：57-65,9.DOI:10.3969/j.issn.1006-6535.2025.03.007
提升叠后地震反演精度的关键技术探讨
Key technologies to improve post-stack seismic inversion accuracy
摘要
Abstract
To address the issues of low resolution,suboptimal continuity and limited reliability in conventional post-stack seismic inversion processes,this study systematically analyzes the importance of each inversion step from the perspective of the inversion workflow.By employing various methods and techniques,the resolution,continuity,and authenticity of the inversion results are improved,and a new high-accuracy post-stack seismic inversion work-flow is established.The study shows that improving the vertical resolution of inversion results can be achieved through four methods:high-resolution inversion techniques,resolution-enhancing preprocessing of seismic data,wavelet adjustment,and high-frequency merging of inversion results with models.Improving the lateral continuity of the inversion results can be achieved through two methods:inversion stability adjustment and low-frequency mer-ging of inversion results with models.The enhancement of inversion effectiveness must adhere to the authentic char-acteristics of reservoirs and should be achieved under the constraints of well-cross-section validation,planar vali-dation,inversion residual validation,and well-point validation.Additionally,four key applicability considerations for the new inversion workflow are proposed:improvement methods should be selected based on the geological con-text and specific prediction objectives;it is challenging for inversion results to simultaneously meet the requirements of vertical resolution and lateral continuity,necessitating a trade-off between the two;excessive enhancement of in-version effectiveness may compromise the reliability of the results;and the time-depth relationship of wells must be ensured to be accurate.Future reservoir predictions will become more refined and complex,and the aforementioned methods and techniques may have promising applications,potentially serving as a reference for detailed inversions in other regions.关键词
叠后地震反演/精度提升/验证方法/垂向分辨率/横向连续性/适用性Key words
post-stack seismic inversion/accuracy enhancement/validation methods/vertical resolution/lateral continuity/applicability分类
天文与地球科学引用本文复制引用
张希晨,张建伟,罗亚能,李静叶,顾晓东,富会,王子昕,丁燕..提升叠后地震反演精度的关键技术探讨[J].特种油气藏,2025,32(3):57-65,9.基金项目
中国石油科技项目"多物理场高精度油气地球物理探测技术与装备研究"(2023ZZ05)、"井眼轨道智能调整与轨迹优化控制方法"(2024ZZ0602) （2023ZZ05）
