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| 含油气球冠模型三维重力归一化总梯度场特征 | |
| 引用本文： | 高丽坤,蒋甫玉,张凤旭,李颜贵,孟令顺.含油气球冠模型三维重力归一化总梯度场特征[J].物探与化探,2010,34(2). |
| 作者姓名： | 高丽坤 蒋甫玉 张凤旭 李颜贵 孟令顺 |
| 作者单位： | 1. 内生金属矿床成矿机制研究国家重点实验室,南京大学,地球科学与工程学院,江苏,南京,210093 2. 河海大学,地球科学与工程系,江苏,南京,210098;河海大学,岩土工程科学研究所,江苏,南京,210098 3. 吉林大学,地球探测科学与技术学院,吉林,长春,130026 4. 中国地质科学院,地球物理地球化学勘察研究所,河北,廊坊,065000 |
| 基金项目： | 河海大学博士后基金资助项目，河海大学引进人才科研启动基金资助项目 |
| 摘 要： | 重力归一化总梯度的三维计算中,将圆滑滤波因子分别引入向下延拓和导数换算响应因子中,推导了其计算公式及数值实现过程,同时给出了具体的计算步骤;对含油气球冠模型的三维归一化总梯度场特征进行了分析与研究。研究结果表明,对于含油气球冠模型来说,不同于均匀球冠模型在各个深度的切平面等值线图中表现出单峰异常的特征,其三维归一化总梯度场的特征表现为:无论在过中心剖面的等值线图还是在某个深度的切片图中,只有当截止频率取值适当时才可以表现出"两高夹一低"的典型储油气藏标志特征,若取值不当,其表现出来的特征与均匀球冠模型相似。此外,归一化总梯度场等值线图中出现"两高夹一低"的位置,往往是含油气球冠所在位置和深度。 |
| 关 键 词： | 含油气球冠 组合滤波 三维重力归一化总梯度 等值线图 |
CHARACTERISTICS OF THE THREE-DIMENSIONAL NORMALIZED FULL GRADIENT FIELD OF GRAVITY ANOMALY IN THE OIL SPHERE CORONAL MODEL |
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| GAO Li-kun,JIANG Fu-yu,ZHANG Feng-xu,LI Yan-gui,MENG Ling-shun.CHARACTERISTICS OF THE THREE-DIMENSIONAL NORMALIZED FULL GRADIENT FIELD OF GRAVITY ANOMALY IN THE OIL SPHERE CORONAL MODEL[J].Geophysical and Geochemical Exploration,2010,34(2). | |
| Authors: | GAO Li-kun JIANG Fu-yu ZHANG Feng-xu LI Yan-gui MENG Ling-shun |
| Institution: | GAO Li-kun1,JIANG Fu-yu2,3,ZHANG Feng-xu4,LI Yan-gui5,MENG Ling-shun4(1.State Key Laboratory for Mineral Deposits Research,School of Earth Sciences , Engineering,Nanjing University,Nanjing 210093,China,2.Department of Earth Science , Engineering,Hohai University,Nanjing 210098,3.Research Institute of Geotechnical Engineering,4.College of Geo-Exploration Science , Technology,Jilin University,Changchun 130026,5.Institute of Geophysical , Geochemical Ex... |
| Abstract: | This paper introduces filter factors respectively in downward continuation and derivative calculation for calculating the three-dimensional normalized full gradient field of gravity anomaly.The authors deduced the computing formula and the process for achieving its numerical value,and then gave the specific calculation procedure.Characteristics of 3D normalized full gradient of gravity anomaly in the homogeneous oil sphere coronal model were analyzed.It is concluded that,for oil sphere coronal,the 3D normal... |
| Keywords: | oil sphere coronal junction filter three-dimensional normalized full gradient of gravity anomaly contour map |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |