| VTI各向异性叠前深度偏移技术在塔里木YM地区低幅度构造成像中的应用 |
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| 引用本文： | 管文胜,孙 琦,苏州.VTI各向异性叠前深度偏移技术在塔里木YM地区低幅度构造成像中的应用[J].护理与康复,2015(2):48-52. |
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| 作者姓名： | 管文胜 孙 琦 苏州 |
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| 作者单位： | 中国石油大学华东地球科学与技术学院 山东 青岛 266555 ;中国石油塔里木油田分公司勘探开发研究院 新疆 库尔勒 841000,中国石油塔里木油田分公司勘探开发研究院 新疆 库尔勒 841000,中国石油塔里木油田分公司勘探开发研究院 新疆 库尔勒 841000 |
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| 摘 要： | 塔里木YM地区勘探程度高,各向异性突出,如速度变化大、低速陷阱等,使得低幅度构造落实困难。在各向异性的理论基础上,结合本区上述的特点,通过多次实践,形成了一套基于VTI介质的各向异性网格层析成像的叠前深度偏移流程。VTI各向异性叠前深度偏移技术基本解决了本区各向异性问题,得到了准确的速度场,叠前深度偏移资料的深度与钻井深度基本一致,低幅度构造成像精度得到提高。
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| 关 键 词： | 低幅度构造 叠前深度偏移 VTI介质 水平各向异性 网格层析成像 |
| 收稿时间： | 2014/9/25 0:00:00 |
Application of VIT anisotropic pre-stack depth migration technology in low-amplitude structure imaging in YM Area, Tarim Basin |
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| Guan Wensheng,Sun Qi and Su Zhou.Application of VIT anisotropic pre-stack depth migration technology in low-amplitude structure imaging in YM Area, Tarim Basin[J].Nursing and Rehabilitation Journal,2015(2):48-52. |
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| Authors: | Guan Wensheng Sun Qi and Su Zhou |
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| Institution: | School of Geosciences and Technologies, China University of Petroleum, Qingdao, Shandong 266555, China;Research Institute of Exploration and Development, PetroChina Tarim Oilfield Company, Korla, Xinjiang, 841000, China,Research Institute of Exploration and Development, PetroChina Tarim Oilfield Company, Korla, Xinjiang, 841000, China and Research Institute of Exploration and Development, PetroChina Tarim Oilfield Company, Korla, Xinjiang, 841000, China |
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| Abstract: | YM Area in Tarim Basin features in high degree of exploration but strong anisotropy, such as drastic velocity changing and low velocity trap, which makes it difficult to ascertain low-amplitude structure.Based on theory of anisotropy and features of the area mentioned above, we developed a procedure of pre-stack depth migration on anisotropy grid tomography of VTI media in practice.The technique of VIT anisotropic pre-stack depth migration is a solution to anisotropy and gets accurate velocity field.The depth of pre-stack depth migration seismic data is the same as that of drilling,so the tomography accuracy of low-amplitude structure is increased. |
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| Keywords: | low-amplitude structure pre-stack depth migration VTI media horizontal anisotropy grid tomography |
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