STRATA软件中递归反演的应用

地震波阻抗反演是储层横向预测和油气藏勘探的重要手段，主要有递归反演、稀疏脉冲反演和基于模型反演这三种方法，其中递归反演在井少的情况甚至是无井的情况下都可用，因此应用非常广泛。STRATA反演软件是目前广泛使用的一套将叠后地震道转换成波阻抗地震道的地震数据反演软件，提供有递归反演等反演方法，该文介绍了STRATA软件中递归反演的基本原理及其在软件中实现的关键技术。对西部某地区的实际地震资料进行递归反演处理的结果表明，递归反演能在井少的情况下得到较好的应用，反演结果能较清晰地展现储层变化。

Application of recursive inversion in STRATA

Seismic wave impedance inversion is an important means of lateral forecasting and reservoir explore. The wave impedance inversion contains three methods, recursive inversion, sparse pulse inversion, and inversion based on the model. Because recursive inversion is available in the case of having few wells, the method is widely used. The STRATA inversion software is a set of currently widely used seismic data inversion software. The software witch- es stacked seismic channel into natural impedance seismic channel and can provide recur- sive inversion. This paper introduces the basic principle and main process of recursive inver- sion in STRATA. The author processed the actual seismic data of a certain area in western China using recursive inversion. The results show that recursive inversion can be well used in reservoir explore in the case of having few wells, and the real data inversion results can clearly show the reservoir changes.