西藏高原地区低频可控震源高密度宽线地震采集技术攻关与应用——以尼玛盆地低频可控震源采集为例

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英文篇名：Low-frequency vibroseis with high density wide line seismic acquisition technology research and application in Tibet Plateau:a case study of low-frequency vibroseis 作者：李桂林 ; 田玉昆 ; 尹吴海 ; 汪锐 ; 曹洁 ; 李娟 ; 王若 英文作者：LI Gui-lin;TIAN Yu-kun;YIN Wu-hai;WANG Rui;CAO Jie;LI Juan;WANG Ruo;Oil and Gas Survey,CGS;Qinghai Division,BGP Incorporated, CNPC; 关键词：高原地区 ; 低频可控震源 ; 宽线 ; 高密度 ; 地震采集 英文关键词：Plateau area;;Low-frequency vibroseis;;Wide line;;High-density;;Seismic acquisition 中文刊名：DQWJ 英文刊名：Progress in Geophysics 机构：中国地质调查局油气资源调查中心;东方地球物理公司青海物探处; 出版日期：2019-02-15 出版单位：地球物理学进展 年：2019 期：v.34;No.153 基金：国家重点研发计划项目(2016YFC060110305);; 中国地质调查局地质矿产调查评价专项(12120115006601);中国地质调查局地质矿产调查评价专项(121201021000150004)联合资助 语种：中文; 页：DQWJ201901015 页数：6 CN：01 ISSN：11-2982/P 分类号：119-124

摘要

本文以西藏尼玛盆地二维地震勘探工程为基础,系统收集分析了西藏高原地区以往地震勘探成果及存在问题,在充分调研和分析研究基础上,结合该地区地形地貌特点及安全、环境保护需要,提出低频可控震源高密度宽线地震采集攻关试验方案,通过实施其攻关效果明显,地震剖面波组特征清楚,资料信噪比较以往有较大提高,不仅满足油气勘探的需要和地方安全要求,而且减少了地震勘探现场施工对环境的破坏,将有效推动西藏高原地区油气勘探进程.
        This paper systematically collects and analyzes previous seismic exploration achievements and results of Tibet Plateau based on Tibet Nima Basin 2 D seismic exploration engineering in 2015. The experimental scheme of low-frequency vibroseis with high-density wide line seismic acquisition is proposed based on the region's topography features, safety and environment protection demands. After the implementation, seismic wave group characteristics have become clear and the signal to noise ratio has been improved significantly. Not only the needs of oil and gas exploration and local security requirements have been met, but also the damage to the environment has been reduced. This work will effectively promote gas exploration process in Tibetan plateau.

引文

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