论文部分内容阅读
本文给出了用叠后资料反演一维波动方程双参数（密度和波速）的理论和方法。通过模型的正、反演试算及抗噪试验，证实了该方法与算法的可靠性与可行性，并通过松辽盆地方3井实际资料的反演，得到了密度、波速两个独立的剖面。文中对实际资料反演的结果作了合成记录，把它与原CDP道集对比，证实了实际资料反演的可靠性。从而双参数反演方法可为地震勘探提供更多的岩性参数。本方法已用于油田地震勘探实际资料的深度反演，直接按深度反演波速和密度。
In this paper, the theory and method of inverting the two parameters (density and wave velocity) of a one-dimensional wave equation with poststack data are given. The reliability and feasibility of the proposed method and algorithm are verified by positive and inverse calculation and anti-noise test of the model. Based on the actual data of Fang 3 well in Songliao basin, two independent profile. In this paper, the result of actual data inversion is synthesized and compared with the original CDP gathers to confirm the reliability of the actual data inversion. Thus, the two-parameter inversion method can provide more lithological parameters for seismic exploration. The method has been applied to the depth inversion of actual data of seismic exploration in oilfields, and the wave velocity and density are directly inverted by depth.