论文部分内容阅读
地震反演是地震油藏描述中常用的也是较重要的一种方法。近年来,采用地震反演技术在孤东采油厂勘探岩性油藏368×104t。完成一个反演工作,一般要完成三维地震资料的选取、速度分析及子波提取、制作合成地震记录、建立地质模型及地震反演。为解决反演的多解性和低分辨率的问题,要求反演地震资料达到高信噪比、高分辨率、保振幅处理、零相位。对地震剖面进行层位对比解释是反演处理的基础工作。
Seismic inversion is a common and important method in seismic reservoir description. In recent years, seismic inversion technology was used to explore 368 × 104t lithologic reservoirs at Gudong Oil Production Plant. To complete an inversion work, the selection of 3D seismic data, velocity analysis and wavelet extraction are generally completed. Synthetic seismograms are to be produced, geological models and seismic inversion are established. In order to solve the problem of multi-resolution and low resolution of inversion, it is required to invert seismic data to achieve high signal-to-noise ratio, high resolution, amplitude preserving processing and zero phase. Interpretation of the seismic horizon by stratigraphic correlation is the basic work of inversion.