A Novel Three-dimensional Seismic Imaging Method by Migration to Zero-offset in Variable Velocity Media

这个小型企业创新研究第一阶段项目将研究开发一种新的三维地震成像方法的可行性。该算法基于倾角时差(DMO)校正的新公式。与定速介质的DMO校正方法不同，零炮检距偏移(MZO)方法适用于变速介质。这种新的创新算法将产生三维结构的图像，同时在计算上比叠前偏移成本更低。这项研究工作的最终结果是一种算法，它能够更好地成像地质结构，并改进储集层特征。这项技术可以更准确地描绘油田地质结构，从而降低开发成本，增加现有油田的碳氢化合物采收量。

This Small Business Innovation Research Phase I project will investigate the feasibility of developing a novel three-dimensional seismic imaging method. The novel algorithm is based on a new formulation of the dip moveout (DMO) correction. Unlike the DMO correction which is formulated for constant velocity media, the new method called migration to zero-offset (MZO) is valid for variable velocity media. This new and innovative algorithm will produce images of three-dimensional structures while being computationally less expensive than prestack migration. The end result of this research effort is an algorithm that enables better imaging of geologic structures, and improved reservoir characterization. The technique allows for greater accuracy in delineating oil field geological structures which in turn reduces development cost and increases the amount of hydrocarbons recovered in the existing oil fields.