南黄海地震资料邻船干扰特征及压制方法

基金项目:
中国地质调查项目(GZH200800503,GZH201200509)

国家自然科学基金(41210005,41174098)

国土资源部海洋油气资源与环境地质重点实验室基金(MRE201314)

详细信息

收稿日期: 2014-05-07

CHARACTERISTICS OF VESSEL NOISE IN SEISMIC SURVEY AND THE METHOD FOR NOISE SUPPRESSION: A CASE FROM THE SOUTH YELLOW SEA

Received Date: 07 May 2014

摘要: 受过往船只的影响,南黄海地震原始资料普遍存在邻船干扰,使地震数据的品质受到严重影响。在系统总结前人研究成果的基础上,指出邻船干扰在炮集上具有直线型、双曲线型和不规则近双曲线形态,同时具有传播路径相对简单、相对高振幅、宽频带特征。利用将邻船干扰拉平后去除及共偏移距域内f-x预测滤波方法对南黄海二维地震资料进行了测试,结果表明,2种方法均能较好地去除邻船干扰,其中后者更易于实现。
- 邻船干扰 /
- 地震特征 /
- 压制方法 /
- 南黄海
Abstract: The quality of seismic raw data is often influenced by the vessel noise, when fishing and merchant vessels passing by. Previous studies show that the vessel noise exists mainly in the shot-gather with linear, hyperbolic and approximate hyperbolic appearance, and is characterized by relatively simple propagation path, high amplitude and wide frequency band. In order to eliminate the noise, we processed the seismic data acquired from the South Yellow Sea with the flattened and eliminated events method and the f-x prediction filters method in the common offset gather. Results show that both the two methods could remove the vessel noise effectively and between the two the second is easier to apply.
- vessel noise /
- seismic characteristics /
- suppression method /
- the South Yellow Sea