| 减去法多次波压制技术在松辽盆地北部古龙断陷中的应用 |
| |
| 引用本文： | 王维红,林春华,裴江云.减去法多次波压制技术在松辽盆地北部古龙断陷中的应用[J].石油物探,2011,50(2):196-200,12. |
| |
| 作者姓名： | 王维红 林春华 裴江云 |
| |
| 作者单位： | 中国石油天然气股份有限公司大庆油田有限责任公司勘探开发研究院,黑龙江,大庆,163712 |
| |
| 基金项目： | 国家自然科学基金青年科学基金 |
| |
| 摘 要： | 松辽盆地北部古龙断陷的地震地质条件复杂,受上覆地层对地震波反射能量的屏蔽影响,在深部火山岩等强反射界面产生了能量较强的层间多次反射波,导致古龙断陷研究区的地震资料品质较差。为消除由层间多次波引起的断陷期地层的构造假象,提高古龙断陷结构的识别精度,采用减去法进行深层层间多次波压制。方法的基本原理是:应用多次波速度对原始CMP道集进行动校正处理,然后对CMP道集进行叠加,得到多次波能量加强的单道记录,亦称为模型道,将模型道和校正后的CMP道集进行逐道匹配相减运算,再进行反动校正得到多次波压制后的CMP道集。减去法层间多次波压制方法易于编程实现,算法简单。数值算例显示,该方法可有效压制古龙断陷研究区的深层层间多次反射波,为深层地震资料的准确成像奠定了基础。
|
| 关 键 词： | 减去法 多次波压制 CMP道集 模型道 古龙断陷 地震成像 |
Multiple suppress based on subtraction algorithm and its application in Gulong fault depression, North Songliao Basin |
| |
| Wang Weihong,Lin Chunhua,Pei Jiangyun.Multiple suppress based on subtraction algorithm and its application in Gulong fault depression, North Songliao Basin[J].Geophysical Prospecting For Petroleum,2011,50(2):196-200,12. |
| |
| Authors: | Wang Weihong Lin Chunhua Pei Jiangyun |
| |
| Affiliation: | Wang Weihong,Lin Chunhua,Pei Jiangyiin Exploration and Production Research Institute,Daqing Oilfield Corporation Ltd.,Daqing 163712,China |
| |
| Abstract: | Gulong fault depression is situated in the north of Songliao Basin, which is characterized by complex seismic and geologic conditions. The shielding effect of overlying formations on the seismic reflection energy generates strong interbed multiple at strong reflecting interface such as deep volcanic rock,which leads to bad quality of seismic data in Gulong fault depression.In order to remove the artifact of faulted formation caused by interbed multiple,and improve the identification accuracy of the structur... |
| |
| Keywords: | subtraction algorithm multiple suppression CMP gather model trace Gulong fault depression seismic imaging |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
