天然地震层析成像技术在油气勘探中的应用

doi:10.3969/j.issn.1004-2903.2011.04.013

摘要/Abstract

摘要： 天然地震层析成像技术,主要是利用布设地震台阵记录天然地震事件体波到时信息,通过反演得到研究区域的三维速度结构分布.全国油气资源战略选区调查与评价项目在柴达木盆地西部复杂地区进行的天然地震层析成像试验结果表明,根据层析成像结果所推断的构造分布与其它方法的勘探结果相比具有一定的相似性,波速异常与测井得到的岩性特征有较好的对应关系.总体效果表明,该方法在地质构造复杂地区具有一定的有效性.

Abstract: Passive seismic tomography is a method that used P and S-wave travel times from natural micro-earthquakes to accurately estimate 3D V_p (structural) and V_p/V_s (lithologic) information of the subsurface. The tomographic results supported by The State Project of Strategic Area Survey and Evaluation for Oil and gas Resources at the geologically complex areas in western Qaidam Basin showed correlation with the geological features inferred from other geophysical prospecting and logging characteristics in the area. Results of this paper have demonstrated that the technique could be useful for similar geologically complex regions.

中图分类号:

P631

乔德武, 张春贺, 李世臻, 刘劲松. 2011. 天然地震层析成像技术在油气勘探中的应用. 地球物理学进展, 26(4): 1227-1233. doi: 10.3969/j.issn.1004-2903.2011.04.013 .

QIAO De-wu, ZHANG Chun-he, LI Shi-zhen, LIU Jin-song. 2011. Exploration with application of passive seismic tomography. Progress in Geophysics. 26(4): 1227-1233. doi: 10.3969/j.issn.1004-2903.2011.04.013 .

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