综合应用重力和密度测井资料研究中牟地区古潜山构造

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英文篇名：Density Chartting by Integrating gravity and logging data:One Case Study 中文刊名：物探装备 英文刊名：Equipment for Geophysical Prospecting 作者：孙建臣 ; 王天平 ; 何展翔 英文作者：Sun Jianchen ; Wang Tianping ; He Zhanxiang 中文关键词：重力与测井 ; 联合解释 ; 三维密度 ; 深古潜山带 英文关键词：gravity and logging ; integration interpretation ; 3D density ; structural belt of deep ancient buried hill 出版日期：2008-08-25 机构：东方地球物理公司综合物化探事业部; 年：2008 期：04 出版单位：物探装备

摘要

在探区测井资料较多的情况下,采用高精度重力与密度测井资料的联合解释能取得较好的效果。主要方法是采用视深度滤波方法将重力异常分离到一定的深度,然后在密度测井资料的约束下将分离后的重力异常采用半球积分法转换成视密度,从而得到三维视密度数据体,根据密度大小推断解释出下古生界地层,综合地震与其它资料指出了中牟地区浅、中、深古潜山构造带的分布,为进一步开展高精度地震勘探指明了方向。
The interpretation integrating high-precision gravity data and density logging data can give a perfect result when there is enough available logging data.The first step is separating gravity anomaly by approximate depth of source by pseudo-depth filtering.Then transfer the separated gravity anomalies into pseudo-density by the hemisphere integration algorithm,which is presented in the paper,with the constraint of density logging data.In area Zhongmu in China,based on the 3D pseudo-density dataset,which is obtained in the previous process,Lower Paleozoic formation is inferred,and the structural belts of ancient buried hills respectively in shallow,medium and deep underground are mapped with the reference of seismic data and other available data.The interpretation gives a guide for the succession seismic survey in the area.

引文

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