本文選題：形態(tài)學(xué) + 噪聲壓制　； 參考：《石油物探》2016年03期

【摘要】：海上地震勘探采集資料中的點(diǎn)源干擾能量強(qiáng),橫向變化幅度小且出現(xiàn)位置不固定,極大地影響了海上地震資料的成像質(zhì)量和解釋精度。采用了基于形態(tài)學(xué)的噪聲壓制技術(shù)對(duì)點(diǎn)源干擾進(jìn)行處理,設(shè)計(jì)了形態(tài)學(xué)濾波器分離點(diǎn)源噪聲和有效信號(hào),實(shí)現(xiàn)了點(diǎn)源干擾的壓制。采用該方法對(duì)模擬地震資料和海上實(shí)際地震資料進(jìn)行處理,并與傳統(tǒng)的F-K去噪方法進(jìn)行了對(duì)比,結(jié)果表明該方法在成功壓制點(diǎn)源繞射干擾的同時(shí),能夠較好地保留原始地震信號(hào)的低頻信息,完全恢復(fù)了信號(hào)與噪聲重疊處的有效信號(hào)振幅。處理過(guò)程中,該方法不受隨機(jī)噪聲的影響,具有很強(qiáng)的抗隨機(jī)噪聲能力。
[Abstract]:The point source interference energy in offshore seismic data acquisition is strong, the lateral variation amplitude is small and the position is not fixed, which greatly affects the imaging quality and interpretation accuracy of offshore seismic data. The noise suppression technique based on morphology is adopted to deal with the point source interference. The morphological filter is designed to separate the point source noise from the effective signal, and the suppression of the point source interference is realized. The proposed method is used to process simulated seismic data and actual offshore seismic data, and is compared with the traditional F-K denoising method. The results show that the proposed method is successful in suppressing point source diffraction interference at the same time. The low frequency information of the original seismic signal can be well preserved and the effective signal amplitude at the overlap between the signal and the noise can be completely recovered. In the process of processing, the method is not affected by random noise and has strong ability to resist random noise.
【作者單位】： 北京信息科技大學(xué)信息與通信工程學(xué)院;中國(guó)石油大學(xué)(北京)油氣資源與探測(cè)國(guó)家重點(diǎn)實(shí)驗(yàn)室;保利協(xié)鑫石油天然氣集團(tuán)控股有限公司;中國(guó)石油天然氣集團(tuán)公司東方地球物理勘探有限責(zé)任公司國(guó)際勘探事業(yè)部;
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)項(xiàng)目(2013CB228602) 國(guó)家科技重大專(zhuān)項(xiàng)(2011ZX05042-003-002) 北京信息科技大學(xué)科研基金項(xiàng)目(1425009)共同資助~~
【分類(lèi)號(hào)】：P631.46
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本文編號(hào)：1931400