CT理论与应用研究2011，Vol.20Issue(2)：191-209,19.
石油地震纵横波速度层析成像
Vlocity Tomography of Petroleum by P and S Seismic Waves
吴发恩 1唐棠 1李凡异 2高妮 3陈立成1
作者信息
- 1. 北京交通大学理学院,北京,1000442
- 2. 中国石油大学(北京)地球物理与信息工程学院
- 3. 中国石油大学(北京)油气资源与探测国家重点实验室,北京,102249
- 折叠
摘要
Abstract
This paper study simulates artificial surface seismic record of multiple-shot on the base of "uniform-layer multi-medium model" (as shown in Figure 10). The observation method is: three shot positions at 1 500 m, 2 500 m, 3 500 m; road distance 25 m, 140 road (or road distance 5 m, 700 road), offset 1 000 m. Combining the method of "P and S seismic wave's velocity tomography of minimum travel time" with "P and S seismic waves velocity tomography of wave fundamental solution" to invert the interface shape and the velocity of P and S seismic wave of each layer. With the principle of "The simpler the better", we only put three shots to the "multi- medium model", then using the "minimization of travel time" and "boundary conditions" to replace the conventional multi-shots, so we can reduce the computation greatly. After then, supposing the shot and receiver points are known, we programming to compute the reflected wave's travel time from the shot points to receiver points. We developed the content of CT, and explored one-dimensional fundamental solution's important role in expressing the field intensity, which could highlight the characteristics of our work. Finally, analyzing the actual seismic data with "Pro MAX software" to revise the process above, then getting the vertical sectional drawing of 11 ground floors and also the result of petroleum P and S seismic wave's velocity tomography.关键词
速度层析成像/基本解/走时最小原理Key words
velocity tomography/ fundamental solution/ minimization of travel time分类
天文与地球科学引用本文复制引用
吴发恩,唐棠,李凡异,高妮,陈立成..石油地震纵横波速度层析成像[J].CT理论与应用研究,2011,20(2):191-209,19.
