海上地震勘探气枪漏气的定量评价探讨  

Quantitative Evaluation of Air Gun Leakage in Offshore Seismic Exploration

作　　者：唐松华 余锦 张福祥 周政 张丽娟 李尚坤 TANG Songhua;YU Jin;ZHANG Fuxiang;ZHOU Zheng;ZHANG Lijuan;LI Shangkun(SINOPEC Offshore Oilfield Services Company,Shanghai 200120,China)

机构地区：[1]中石化海洋石油工程有限公司,上海200120

出　　处：《海洋石油》2020年第4期20-24,共5页Offshore Oil

摘　　要：空气枪震源在海洋地震资料采集中使用广泛,漏气是比较常见的一种现象。在发生气枪漏气等异常情况而又不能套用关枪标准进行质量控制时,针对单个气枪或多个气枪的漏气对整个枪阵的影响,从近场子波相关性和能量一致性方面,提出了对整个枪阵开展定量分析评价的方法,可以为气枪阵列的激发品质提供定量评价参考。Air gun seismic source is widely used in marine seismic data acquisition,and air leakage is a common phenomenon.When there is an abnormal situation such as air gun leakage,and the quality control cannot be carried out according to the gun closing standard,the influence of the air leakage of a single air gun or multiple air guns on the entire gun array is considered from the aspects of near-field wavelet correlation and energy consistency.Finally,this paper has put forward the quantitative analysis and evaluation method for the whole gun array,which can provide quantitative evaluation reference for the excitation quality of air gun array.

关 键 词：气枪阵列 近场子波 震源质量评价 相关分析 能量分析 

分 类 号：P631[天文地球—地质矿产勘探]