联合结构张量与运动学反偏移的立体层析数据空间提取与反演策略研究Ⅰ:理论

发布时间：2018-05-23 21:03

本文选题：立体层析 + 结构张量　；参考：《石油物探》2017年05期

【摘要】：提出了一种联合结构张量与运动学反偏移的立体层析数据空间提取与反演策略。首先在数据域搜索得到初始数据空间,可获得初始反演结果与初始成像数据体,然后基于初始成像数据体内的共偏移距成像剖面人工拾取出比较可靠的数据点位置,在这些位置搜索构造倾角与剩余曲率,最后利用运动学反偏移将上述成像域运动学信息反偏移到数据空间并实施校正,获得更为可靠与均匀的立体层析数据空间。无论是第一步的数据域搜索还是第二步的成像域搜索都是基于高效率、高精度的结构张量算法的实现,可认为是一种联合结构张量与运动学反偏移的两步法立体层析数据空间提取与反演策略。同时还探讨了当射线参数水平分量信息引入层析反演的数据空间后,实施反演算法的各种可能性。理论数据证实了上述策略的可靠性,为后续的实践奠定了理论基础。
[Abstract]:A spatial extraction and inversion strategy for stereo tomography data combined with structural Zhang Liang and kinematics inverse migration is proposed. First, the initial data space can be obtained by searching in the data domain, and the initial inversion results and the initial imaging data volume can be obtained. Then, based on the common offset imaging profile of the initial imaging data, the more reliable data points are picked up manually. Finally, the kinematic inverse migration is used to reverse shift the kinematics information in the imaging domain to the data space and the correction is carried out to obtain a more reliable and uniform stereoscopic tomography data space. Both the first step of data domain search and the second step of imaging domain search are based on the implementation of high efficiency and high precision structured Zhang Liang algorithm. It can be considered as a strategy of spatial extraction and inversion of stereo tomography data by combining structural Zhang Liang and kinematics inverse migration. At the same time, the possibility of implementing the inversion algorithm is discussed when the horizontal component information of ray parameters is introduced into the data space of tomography inversion. The theoretical data confirm the reliability of the above strategies and lay a theoretical foundation for the subsequent practice.
【作者单位】：同济大学反射地震学科组;阿美远东(北京)商业服务有限公司国际研发中心;中海石油研究中心;
【基金】：国家自然科学基金面上项目(41574098,41630964) 国家科技重大专项子课题(2016ZX05026-001-03)共同资助~~
【分类号】：P631.4

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