层析成像静校正技术在永安地区的应用

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英文篇名：Application of tomography static correction technique in Yong'an area 中文刊名：复杂油气藏 英文刊名：Complex Hydrocarbon Reservoirs 作者：王智杰 ; 张智勇 ; 郭廷超 ; 马金鹤 英文作者：Wang Zhijie ; Zhang Zhiyong ; Guo Tingchao ; Ma Jinhe(Geophysical Prospecting Technology Research Institute Of Jiangsu Oilfield Company ; Nanjing ; Jiangsu 210046) 中文关键词：永安地区 ; 复杂地表 ; 地震数据处理 ; 层析成像 ; 静校正 ; 速度模型 ; 低降速带 ; 初至 英文关键词：Yong'an area ; complex surface ; seismic data processing ; tomographuic imaging ; static correction ; velocity model ; low deceleration zone ; first break 出版日期：2010-12-25 机构：中国石油化工股份有限公司江苏油田分公司物探技术研究院; 年：2010 期：04 出版单位：复杂油气藏

摘要

苏北永安高精度三维工区地表及近地表地震地质条件复杂,存在较严重的静校正问题。而存在低降速带的永安地区地震资料并不适合高程静校正的应用,无法提高静校正计算的精度。层析成像静校正技术可适应复杂的地表情况,通过建模准确地计算出静校正量,然后对地震资料进行处理。该技术在永安工区的应用,消除了三洋河流域近地表静校正量的影响,提高了地震资料的信噪比和成像效果。
In high-accuracy 3D working area of Yong'an in northern Jiangsu,there are serious static correction problems due to complex surface and near-surface seismic geologic conditions.And seismic data in the area with low deceleration zone are not suitable for the application of elevation static correction,which can not improve precision of static correction.Tomographic static correction technology may be adapted to the complicated earth's surface.By building a model,which calculated the static value precisely,the seismic data were processed.Through the application of the technique in Yong'an area,influence of the near-surface static values of Sanyan river basin was eliminated,and the S/N ratios and imaging effect of the seismic data were enhanced

引文

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