基于模拟测井资料的波阻抗反演
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摘要
波阻抗反演技术把具有高纵向分辨率的已知测井资料与连续观测的地震资料联系起来,实行优势互补,是煤田岩性地震勘探的重要手段。今天,模拟测井资料占主导地位是不容忽视的现实,因此,关键问题是如何利用模拟测井资料做好波阻抗反演。这里针对上述问题进行了有益的尝试,提出了解决这一问题的方法。从对实际资料进行处理后显示,该方法提高了地震资料的分辨率,能够推断地层岩性在平面上的变化及顶、底板岩性情况。
The impedance inversion technique by combining log data with high vertical resolution with seismic data observed continually,can fully use the advantages of both data and is the important means in coal lithological seismic surveying.Nowadays,we must face the facts that simulation log data are dominant in coal fields.So that it is crucial how to use simulative log data in the impedance inversion.In this paper,the beneficial attempt is made for above questions.And a method to resolve this question is presented.Real case shows that the method can improve the resolution of seismic data,and determine the lithology variation of coal-bearing strata,and the lithology of coal beds and roof/bottom of coal beds.
The impedance inversion technique by combining log data with high vertical resolution with seismic data observed continually,can fully use the advantages of both data and is the important means in coal lithological seismic surveying.Nowadays,we must face the facts that simulation log data are dominant in coal fields.So that it is crucial how to use simulative log data in the impedance inversion.In this paper,the beneficial attempt is made for above questions.And a method to resolve this question is presented.Real case shows that the method can improve the resolution of seismic data,and determine the lithology variation of coal-bearing strata,and the lithology of coal beds and roof/bottom of coal beds.
引文
[1]吴坚,张塞,闫桂花,等.波阻抗反演技术在区域层序地层研究中的应用[J].石油地球物理勘探.2002,37:58.
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[4]夏洪瑞,周开明,黄桥.波阻抗反演中的一种建模方法[J].石油物探,2004,43(1):30.
[5]李强,王西荣.声波-伽马密度测井综合解释方法研究及应用[J].测井技术,2004,28:39.
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[2]中国矿大,西安矿院.煤田地球物理测井[M].北京:煤炭工业出版社,1979.
[3]王连山,董建海,彭毅斌,等.测井约束三维地震反演在琥珀营油田滚动勘探开发中的应用[J].物探化探计算技术,2003,25(2):157.
[4]夏洪瑞,周开明,黄桥.波阻抗反演中的一种建模方法[J].石油物探,2004,43(1):30.
[5]李强,王西荣.声波-伽马密度测井综合解释方法研究及应用[J].测井技术,2004,28:39.
[6]刘百红,李建华.测井和地震资料宽带约束反演的应用[J].石油物探,2004,28:39.
[7]廖玲,肖富森,王玉雪,等.川中GSM地区陆相碎屑岩油气富集区的预测方法研究[J].物探化探计算技术,2003,25(4):312.
[8]周锦明,熊翥.地震数据精细处理[M].北京:石油工业出版社,2003.
[9]许升辉,马劲风.波阻抗反演中多井条件下的子波提取方法[J].地球物理学进展,2003,18(4):623.
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