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高精度叠前时间偏移技术在川西地区的应用
引用本文:王红旗,曲寿利,宁俊瑞,张建伟,贾丽华,李文杰,赵艳平.高精度叠前时间偏移技术在川西地区的应用[J].天然气地球科学,2007,18(6):803-807.
作者姓名:王红旗  曲寿利  宁俊瑞  张建伟  贾丽华  李文杰  赵艳平
作者单位:1. 中国石化石油勘探开发研究院,北京,100083;中国石油大学,北京,102249
2. 中国石化石油勘探开发研究院,北京,100083
摘    要:川西地区天然气发育,构造复杂,目的层为碳酸盐岩储层且非均质性强、埋藏较深、叠后时间偏移成像不准确,因此在该地区开展了叠前时间偏移处理技术应用研究。介绍了高精度叠前时间偏移技术的基本原理和实现过程,分析了该技术在川西地区的应用效果,对比了叠前时间偏移剖面和叠后时间偏移剖面,结果表明,高精度叠前时间偏移处理技术提高了地震资料的成像精度,使剖面上断点、断层清晰,波组特征清楚,可为精细构造解释提供可靠的地震数据。

关 键 词:川西地区  构造复杂  高精度  克希霍夫积分法  叠前时间偏移
文章编号:1672-1926(2007)06-0803-05
收稿时间:2007-08-27
修稿时间:2007-09-20

APPLICATION OF HIGH ACCURACY PRESTACK TIME MIGRATION IN CHUANXI AREA
WANG Hong-qi,QU Shou-li,NING Jun-rui,ZHANG Jian-wei,JIA Li-hua,LI Wen-jie,ZHAO Yan-ping.APPLICATION OF HIGH ACCURACY PRESTACK TIME MIGRATION IN CHUANXI AREA[J].Natural Gas Geoscience,2007,18(6):803-807.
Authors:WANG Hong-qi  QU Shou-li  NING Jun-rui  ZHANG Jian-wei  JIA Li-hua  LI Wen-jie  ZHAO Yan-ping
Affiliation:1. Exploration and Production Research Institute, SINOPEC, Beijing 100083, China; 2. China University of Petroleum , Beijing 102249, China
Abstract:Chuanxi area is located in the Sichuan basin, with abundant gas, complex structures. The bed of interest, carbonate reservoir, is deep in this area, with strong heterogeneity. Images of poststack time migration are poor in the Chuanxi area; however, results show that the high accuracy prestack time migration technique can effectively improve the image precision of seismic data. The result sections are characterized by clearer faults, reliable breakpoints. The results allowed for precise structural interpretation. This paper introduces the basic theory, main steps and application effects of the high accuracy prestack time migration.
Keywords:Chuanxi area  Complex structure  High accuracy  Kirchhoff integral method  Prestack time migration  
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