[an error occurred while processing this directive] | 世界地质 2020, 39(4) 888-895 DOI: 10.3969/j.issn.1004-5589.2020.04.014 ISSN: 1004-5589 CN: 22-1111/P | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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地球物理 |
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砂岩型铀矿勘探的浅层三维地震资料针对性处理方法 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
雷安贵1, 孙章庆2, 董兵波1, 高树生1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1. 中石油辽河油田分公司, 辽宁 盘锦 124010; 2. 吉林大学 地球探测科学与技术学院, 长春 130026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
摘要: 为了提高砂岩型铀矿勘探浅层三维地震资料处理效果,分析了浅层三维地震资料处理存在的问题及难点,并制定一系列针对性处理对策:精细模型法静校正、近地表吸收补偿、串联反褶积、叠前数据规则化和叠后拓频处理。实际数据测试表明,这些针对性对策使得成果数据的主频和频宽均提高50%±,同时信噪比和分辨率均有很大幅度提高。 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
关键词: 砂岩型铀矿 油铀共生区 浅层 三维地震资料 针对性处理方法 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Targeted processing method of shallow 3D seismic data for sandstone-type uranium deposits exploration | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
LEI An-gui1, SUN Zhang-qing2, DONG Bing-bo1, GAO Shu-sheng1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1. Liaohe Oilfield Company, CNPC, Panjin 124010, Liaoning, China; 2. College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Abstract: In order to improve the effect of shallow 3D seismic data processing for sandstone-type uranium exploration, the existing problems and difficulties are analyzed, and a series of countermeasures are formulated, including fine model static correction, near surface absorption compensation, series deconvolution, pre-stack data regularization and post-stack frequency extension processing. The actual data testing shows that the dominant frequency and bandwidth of the result data are increased by about 50%, and the signal-to-noise ratio and resolution are greatly improved. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Keywords: sandstone-type uranium deposits oil-uranium symbiosis area shallow 3D seismic data targeted processing method | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
收稿日期 2019-08-26 修回日期 2020-07-18 网络版发布日期 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
DOI: 10.3969/j.issn.1004-5589.2020.04.014 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
基金项目:
国家重点研发计划(2018YFC0604200)、中国石油天然气股份有限公司《新能源技术开发与应用研究》项目(2016A-4803(GF))、国家自然科学基金项目(41404085)和吉林大学优秀青年教师培养计划(419080500337)资助。 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
通讯作者: 孙章庆(1982-),男,副教授,主要从事地震资料处理与解释、地震波传播理论与成像和地球物理等方面的教学与研究。E-mail:sunzhangq@jlu.edu.cn | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
作者简介: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
作者Email: sunzhangq@jlu.edu.cn | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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