东海XH凹陷砂泥岩互层地震资料处理关键技术
发布时间：2018-08-13 20:23
【摘要】：东海XH凹陷沉积地层以砂泥岩互层为主,阻抗界面差异较小,浅水表面多次波发育,导致地震反射弱,波组特征不明显,针对上述问题,应用研发的多次波压制、高精度鬼波宽频处理等技术,对工区地震资料进行了精细处理,处理剖面上的波组特征明显得到改善,数据低频、高频都得到拓宽,波组更真实可信,利用处理结果进行波阻抗反演和综合解释,能够更好地分析该凹陷优质储层的主控因素,岩性与钻井吻合度较高,证实了这一系列地震资料处理方法可靠性较高,达到了砂泥岩互层地震资料高质量成像的目的。
[Abstract]:The sedimentary strata of XH sag in the East China Sea are mainly composed of sand and mudstone interbeds, the impedance interface difference is small, the shallow water surface multiple waves develop, which leads to the weak seismic reflection and the characteristics of the wave groups are not obvious. In view of the above problems, the developed multiple wave suppression is applied. Some techniques, such as high-precision ghost wave broadband processing, have been used to process the seismic data in the working area. The wave group characteristics on the processing section have been improved obviously, the data low frequency and high frequency have been broadened, and the wave set is more authentic and credible. The wave impedance inversion and comprehensive interpretation based on the processing results can better analyze the main controlling factors of the high quality reservoir in the sag, and the lithology is in good agreement with the drilling, which proves that the reliability of this series of seismic data processing methods is relatively high. The purpose of high quality imaging of sand and mudstone interbedded seismic data is achieved.
【作者单位】： 中海油研究总院;
【基金】：国家科技重大专项课题“南海深水区油气勘探地球物理关键技术”(2016ZX05026-001)
【分类号】：P631.44
本文编号：2182081
[Abstract]:The sedimentary strata of XH sag in the East China Sea are mainly composed of sand and mudstone interbeds, the impedance interface difference is small, the shallow water surface multiple waves develop, which leads to the weak seismic reflection and the characteristics of the wave groups are not obvious. In view of the above problems, the developed multiple wave suppression is applied. Some techniques, such as high-precision ghost wave broadband processing, have been used to process the seismic data in the working area. The wave group characteristics on the processing section have been improved obviously, the data low frequency and high frequency have been broadened, and the wave set is more authentic and credible. The wave impedance inversion and comprehensive interpretation based on the processing results can better analyze the main controlling factors of the high quality reservoir in the sag, and the lithology is in good agreement with the drilling, which proves that the reliability of this series of seismic data processing methods is relatively high. The purpose of high quality imaging of sand and mudstone interbedded seismic data is achieved.
【作者单位】： 中海油研究总院;
【基金】：国家科技重大专项课题“南海深水区油气勘探地球物理关键技术”(2016ZX05026-001)
【分类号】：P631.44
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