Omni 3D中的加减法实现复杂观测系统的设计与分析

Design and Analysis of Achieving Complex Recording Geometry Based on Plus and Minus in Omni 3D Software

Omni 3D软件是当前国际上最为先进的地震采集设计软件之一。该软件主要的观测系统设计功能模块在观测系统论证、布设、优化评价等方面具有操作应用简单、可视化强等特点。为解决某项目复杂观测系统设计难题,通过运用OMNI观测系统设计模块中Combine和Subtract功能,利用加、减法的设计思路实现了该区多种特殊观测系统的综合应用和分析,并在禁炮区及其他区域获取了高品质的地震资料。该方法不仅可以提高复杂多区域观测系统设计的效率和保证复杂多变观测系统的叠合计算精度,而且对复杂障碍区的观测系统的有效性和采集质量的现场评估及采集完后的完成地质任务的后评估也具有参考价值。

Omni 3 D software is one of the most advanced global seismic acquisition design software. Its main geometry design function module features simple operation application and high visualization in terms of geometry demonstration,layout and optimization evaluation. The application of Combine and Subtract function of OMNI geometry design module and design thought of Plus and Minus in solving the puzzle of complex geometry design for a project contributes to comprehensive application and analysis of multiple special geometry systems and acquisition of high-quality seismic data from shot-forbidden area and other areas. This method can not only improve design efficiency of complex and multi-zone geometry and its congruence calculation accuracy but also provide the reference for evaluation on the geometry availability and acquisition quality incomplex areas.