伊通复杂断陷盆地地震采集技术
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摘要
从伊通盆地复杂的表层结构及深层地质条件出发,分析了影响复杂构造区信噪比和分辨率的主要因素,从而有针对性地研究了复杂构造下的观测系统设计及照明分析技术、复杂地表结构条件下的表层调查技术、提高信噪比的组合检波压制干扰波技术和基于表层调查的激发技术。通过一系列技术研究,形成了"三分"、"三优选"的技术措施,有效地提高了伊通盆地复杂构造的信噪比和分辨率,提高了西北缘山地的成像质量,满足了油气勘探的需求。
The main impact factors of the signal-noise ratio and the resolution in the complicated structure area are analyzed on base of the complicated surface structures and the deep geological conditions in Yitong basin.Then accordingly,the geometry design and illumination analysis technology under complicated Structures is researched,the surface survey technology under the conditions of complicated surface structure is researched,the noise elimination technology on combined detection method to improve the signa-noise ratio is researched,and the excitation technique based on surface survey is researched.Through a series of technical studies,the technical measures of "there divided" and "three preferred" are formed,the signal-noise ratio and the resolution of complicated structures in Yitong basin are improved effectively,the image quality of the northwestern margin of the mountains is improved,and the need of oil and gas exploration is met.
The main impact factors of the signal-noise ratio and the resolution in the complicated structure area are analyzed on base of the complicated surface structures and the deep geological conditions in Yitong basin.Then accordingly,the geometry design and illumination analysis technology under complicated Structures is researched,the surface survey technology under the conditions of complicated surface structure is researched,the noise elimination technology on combined detection method to improve the signa-noise ratio is researched,and the excitation technique based on surface survey is researched.Through a series of technical studies,the technical measures of "there divided" and "three preferred" are formed,the signal-noise ratio and the resolution of complicated structures in Yitong basin are improved effectively,the image quality of the northwestern margin of the mountains is improved,and the need of oil and gas exploration is met.
引文
[1]蔡东地.火成岩区二维地震正演及照明分析技术应用[J].地球物理勘探进展,2009,32(5)356 361.
[2]熊翥.高精度三维地震(Ⅰ)数据采集[J].地球物理勘探进展,2009,32(1)1 11.
[3]熊翥.高精度三维地震(Ⅱ)数据处理[J].地球物理勘探进展,2009,32(2)81 95.
[4]罗岐峰.重新认识地震组合检波的作用[J].石油地球物理勘探,2009,43(3):257 264.
[5]李庆忠.论检波器横向拉开组合的重要性[J].石油地球物理勘探,2009,43(4):375 382.
[2]熊翥.高精度三维地震(Ⅰ)数据采集[J].地球物理勘探进展,2009,32(1)1 11.
[3]熊翥.高精度三维地震(Ⅱ)数据处理[J].地球物理勘探进展,2009,32(2)81 95.
[4]罗岐峰.重新认识地震组合检波的作用[J].石油地球物理勘探,2009,43(3):257 264.
[5]李庆忠.论检波器横向拉开组合的重要性[J].石油地球物理勘探,2009,43(4):375 382.
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