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

变速介质中零偏移距偏移三维地震成像新方法

• 批准号: 9461293
• 负责人: Alexander Popovici
• 金额: $ 7.5万
• 依托单位: 3DGEO DEVELOPMENT INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-02-01 至 1996-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9461293&HistoricalAwards=false
• 关键词: Novel; Three; dimensional; Seismic; Imaging

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.

这个小企业创新研究第一阶段项目将调查开发一种新的三维地震成像方法的可行性。该算法基于一种新的倾角时差（DMO）校正公式。与常速介质中的DMO校正不同，新的零偏移距偏移方法（MZO）适用于变速介质。这种新的和创新的算法将产生三维结构的图像，而计算成本低于叠前偏移。这项研究工作的最终结果是一种算法，能够更好地成像地质结构，并改善油藏表征。该技术可以更准确地描绘油田地质结构，从而降低开发成本并增加现有油田中回收的碳氢化合物的量。