复杂地表条件下二维地震资料拼接处理技术
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摘要
焉耆盆地地表条件复杂,有山地、沙山、戈璧、沼泽、湖区和农田等,地震资料年度跨度大,地震激发类型不一致(地表变化、岩性、井炮、震源等),地表高程变化大,静校正问题严重,原始资料的信噪比和分辩率都很低。针对这种复杂地表、不同年度、不同激发条件的资料进行的拼接处理,采取建立近地表模型、应用交互折射静校正技术、地表一致性处理技术、子波整形技术及叠前去噪技术等技术的综合分析应用,较好地解决了本地区资料的静校正问题及子波不一致的问题,使处理剖面的信噪比和分辩率都有较大的改善。
The surface conditions are complex in Yanqi basin,there are mountains,sand hill,gobi,swamps,lake and farmland,etc.. Its seismic data have large year span,and seismic excitations are inconsistent causing by surface changes,lithology,well shot,and the seismic source,etc.. Its surface elevation changes largely,and the seismic data’s static correction problems are serious,and the SNR (signal to noise ratio) and resolution of the raw data are very low. In view of this complex surface,different years span and different excitation condition data,the splicing processing solves the seismic data’s static correction problem and wavelet inconsistencies problem effectively by using such technique or technology as the near-surface model establishing technique,interactive refraction static correction technique,surface consistency of treatment technology,wavelet shaping technique and pre-stack de-noising technology to analysis comprehensively,so that the SNR and resolution of the processed sections are greatly improved.
The surface conditions are complex in Yanqi basin,there are mountains,sand hill,gobi,swamps,lake and farmland,etc.. Its seismic data have large year span,and seismic excitations are inconsistent causing by surface changes,lithology,well shot,and the seismic source,etc.. Its surface elevation changes largely,and the seismic data’s static correction problems are serious,and the SNR (signal to noise ratio) and resolution of the raw data are very low. In view of this complex surface,different years span and different excitation condition data,the splicing processing solves the seismic data’s static correction problem and wavelet inconsistencies problem effectively by using such technique or technology as the near-surface model establishing technique,interactive refraction static correction technique,surface consistency of treatment technology,wavelet shaping technique and pre-stack de-noising technology to analysis comprehensively,so that the SNR and resolution of the processed sections are greatly improved.
引文
[1]林伯香,孙晶梅,刘起弘,等.关于浮动基准面概念的讨论[J].石油物探,2005,44(1):94-97.
[2]林振刚,王超,付北方,等.塔克拉玛干沙漠勘探应用技术[A],复杂地表地区地震勘探实例[C].北京:石油工业出版社,1994:7-60.
[3]刘治凡,毛海波,邵雨,等.复杂地表区基准面和静校正方法选择[J].石油物探,2003,42(2):240-247.
[4]刘江平.复杂地形下的一种地震野外静校正的新方法-浮动基准面静校正[J].物探与化探,1996,20(3):218-222.
[5]王振华,袁明生,阎玉魁,等.复杂地表条件下的静校正方法[J].石油地球物理理勘探,2003,38(5):487-500.
[6]陶云光,袁刚,陈新,等.二维地震连片相对保幅处理及储层预测技术在塔西南地区的应用[J].岩性油气藏,2007,19(1):96-100.
[7]王彦春.交互迭代静校正方法[J].石油物探,1998,37(2):63-70.
[8]王西文,刘全新,吕焕通,等.相对保幅的地震资料连片处理方法研究[J].石油物探,2006,45(2):105-120.
[9]段云卿.匹配滤波与子波整形[J].石油地球物理勘探,2006,41(2):156-159.
[10]熊翥.复杂地区地震数据处理思路[M].北京:石油工业出版社,2002:17-96.
[11]吕金博,陈天科,张绍华,等.去噪技术在塔里木盆地孔雀河地区资料处理中的应用[J].河南石油,2004,18.
[12]王兆湖,李勤学,刘财,等.西部地震资料主要处理技术研究[J].世界地质,2002,21(2):191-191.
[13]吕磊,王孝,张小美,等.模式识别自适应噪声衰减方法的研究和应用[J].西北油气勘探,2006,18(4):46-49.
[2]林振刚,王超,付北方,等.塔克拉玛干沙漠勘探应用技术[A],复杂地表地区地震勘探实例[C].北京:石油工业出版社,1994:7-60.
[3]刘治凡,毛海波,邵雨,等.复杂地表区基准面和静校正方法选择[J].石油物探,2003,42(2):240-247.
[4]刘江平.复杂地形下的一种地震野外静校正的新方法-浮动基准面静校正[J].物探与化探,1996,20(3):218-222.
[5]王振华,袁明生,阎玉魁,等.复杂地表条件下的静校正方法[J].石油地球物理理勘探,2003,38(5):487-500.
[6]陶云光,袁刚,陈新,等.二维地震连片相对保幅处理及储层预测技术在塔西南地区的应用[J].岩性油气藏,2007,19(1):96-100.
[7]王彦春.交互迭代静校正方法[J].石油物探,1998,37(2):63-70.
[8]王西文,刘全新,吕焕通,等.相对保幅的地震资料连片处理方法研究[J].石油物探,2006,45(2):105-120.
[9]段云卿.匹配滤波与子波整形[J].石油地球物理勘探,2006,41(2):156-159.
[10]熊翥.复杂地区地震数据处理思路[M].北京:石油工业出版社,2002:17-96.
[11]吕金博,陈天科,张绍华,等.去噪技术在塔里木盆地孔雀河地区资料处理中的应用[J].河南石油,2004,18.
[12]王兆湖,李勤学,刘财,等.西部地震资料主要处理技术研究[J].世界地质,2002,21(2):191-191.
[13]吕磊,王孝,张小美,等.模式识别自适应噪声衰减方法的研究和应用[J].西北油气勘探,2006,18(4):46-49.
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