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| Kirchhoff积分法叠前时间偏移技术在三江盆地XDLZ地区的应用 | |
| 引用本文： | 于明德,王璞珺,铁映春,杨云飞,冯全东,胡艳莎,田云. Kirchhoff积分法叠前时间偏移技术在三江盆地XDLZ地区的应用[J]. 世界地质, 2007, 26(4): 492-500 |
| 作者姓名： | 于明德 王璞珺 铁映春 杨云飞 冯全东 胡艳莎 田云 |
| 作者单位： | 1. 吉林大学,地球科学学院,长春,130061;中国石油化工股份有限公司,河南油田分公司石油勘探开发研究院,河南,南阳,473132 2. 吉林大学,地球科学学院,长春,130061 3. 中国石油化工股份有限公司,河南油田分公司石油勘探开发研究院,河南,南阳,473132 |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 三江盆地前进坳陷XDLZ地区构造较复杂，以往开展的二维叠后时间偏移成像精度低和空间位置不够准确，为此进行了二维叠前时间偏移处理研究，分析了Kirchhoff积分法叠前时间偏移处理中关键环节技术参数（叠前去噪、振幅补偿、反褶积、静校正、均方根速度建模和偏移孔径选取）对研究区复杂构造成像的影响及处理技巧。通过叠前时间偏移和叠后时间偏移在该区的应用效果对比分析，Kirchhoff积分法叠前时间偏移处理结果包含地震信息更加丰富，深层复杂构造成像在同相轴的连续性和断层及断点空间位置更趋合理，成像相位和振幅误差较小，构造成图精度提高了约4％。 |
| 关 键 词： | 三江盆地 叠前时间偏移 Kirchhoff积分法 地震信息 |
| 文章编号： | 1004-5589（2007）04-0492-09 |
| 收稿时间： | 2007-08-10 |
| 修稿时间： | 2007-09-27 |
Application of Kirchhoff integral method prestack time migration technique in XDLZ area of Sanjiang Basin |
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| YU Ming-de,WANG Pu-jun,TIE Ying-chun,YANG Yun-fei,FENG Quan-dong,HU Yan-sha,TIAN Yun. Application of Kirchhoff integral method prestack time migration technique in XDLZ area of Sanjiang Basin[J]. Global Geology, 2007, 26(4): 492-500 | |
| Authors: | YU Ming-de WANG Pu-jun TIE Ying-chun YANG Yun-fei FENG Quan-dong HU Yan-sha TIAN Yun |
| Abstract: | There exist complex structures in XDLZ area of Qianjin sag of Sanjiang Basin. The former imaging accuracy and space-location of 2D poststack time migration were not accurate. The authors did research on 2D prestack time migration processing and analyzed the key technical parameters in the Kirchhoff integral method prestack time migration process such as prestack noise attenuation, amplitude compensation, deconvolution, static correction, root-mean-square velocity model building and choosing migration aperture to the influence on the complex structure imaging in study area. compared and analyzed the application effects of the prestack and poststack time migrations in this area, the result shows that the Kirchhoff integral method prestack time migration process has more abundant seismic information; the deep complicated structure imaging is more rational in the field of the seismic event continuity and the space-location of faults and their points with less errors in its phase and amplitude; the accuracy for mapping structure is improved by ca. 4 %. |
| Keywords: | Sanjiang Basin prestack time migration Kirchhoff integral method seismic information |
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