| 东海陆架盆地构造划分的高精度重磁解释技术 |
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| 引用本文： | 姚刚,董向欣,李丽丽,马国庆,孟令顺.东海陆架盆地构造划分的高精度重磁解释技术[J].吉林大学学报(地球科学版),2018(2):517-524. |
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| 作者姓名： | 姚刚 董向欣 李丽丽 马国庆 孟令顺 |
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| 作者单位： | 中海石油(中国)有限公司上海分公司,上海,200030
吉林大学地球探测科学与技术学院,长春,130026 |
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| 基金项目： | 国家自然科学基金项目，国家油气重大专项，国家重点研发计划项目，Supported by National Natural Science Foundation of China，National Oil and Gas Major Sub Project，National Key Research and Development Program of China |
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| 摘 要： | 本文利用面积广、勘探深度大的重磁数据通过增强型局部相位边界识别方法和优化欧拉反褶积法获得东海陆架盆地的构造特征,为油气勘探提供基础资料。增强型局部相位边界识别法是重磁数据一阶和二阶水平导数的比值函数,能有效地均衡不同深度地质体的边界响应,从而同时显示不同深度构造的边界,提高对较深层构造的分辨率;优化欧拉反褶积法有效地降低了背景异常的干扰,从而可获得更加准确的构造反演结果。理论模型研究表明,增强型局部相位边界识别法可更加准确和清晰地划分边界信息,优化欧拉反褶积法可获得更加准确和收敛的反演结果。综合利用增强型局部相位边界识别和优化欧拉反褶积法对东海陆架断裂构造分布进行划分,获得了分析区域构造背景和评估油气潜力的基础资料。
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| 关 键 词： | 东海盆地 局部相位 欧拉反褶积 构造特征 油气勘探 East China Sea basin local phase Euler deconvolution structure feature oil and gas exploratio |
High-Precision Gravity and Magnetic Interpretation Technique in Tectonic Division of East China Sea Shelf Basin |
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| Yao Gang,Dong Xiangxin,Li Lili,Ma Guoqing,Meng Lingshun.High-Precision Gravity and Magnetic Interpretation Technique in Tectonic Division of East China Sea Shelf Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2018(2):517-524. |
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| Authors: | Yao Gang Dong Xiangxin Li Lili Ma Guoqing Meng Lingshun |
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| Abstract: | Using the gravity and magnetic data with wide area and deep exploration depth,we use enhanced local phase boundary identification and optimization Euler deconvolution to get the structural distribution of the East China Sea shelf basin.The enhanced local phase boundary identification method is the ratio of function data of the first order and the second order horizontal derivatives,which can effectively balance the different depth of the geological body boundary response,and improve the resolution of the deep structure;the optimization of Euler deconvolution method can effectively reduce the interference of background anomaly to result in more accurate inversion results.The theoretical model shows that the enhanced local phase boundary identification method can be more accurate and clear,the optimized inversion results of Euler deconvolution method can be more accurate and convergent.The comprehensive use of enhanced local phase boundary identification and optimization Euler deconvolution method can accurately divide the distribution of the East China Sea continental shelf fault structure,which has important reference value for guiding regional oil and gas exploration. |
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