用正演模型研究地震垂向分辨率
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摘要
研究地震反射波垂向分辨率与地层结构及入射子波的频率关系和砂层组中砂岩百分比与地震反射波振幅、波阻抗之间的关系。制作了2种地质模型:一种是不同厚度的砂泥岩地层组合模型;另一种是不同砂泥岩百分比的砂泥岩地层模型组合。研究表明,地震反射波振幅、波阻抗与砂泥岩百分比具有线性正比关系。地震反射波垂向分辨率与入射到目的层的子波频率有关,与地层沉积韵律及结构有关。
In order to investigate the relation of vertical resolution of seismic reflection with stratum structure and frequency of incidence wavelet, and the relation between the percentage of sandstone and the amplitude and wave impedance of seismic reflection in sand layers, two geological models are developed. One is the stratum association model with different thickness of sand-mudstone; the other is the association of stratum models with different percentages of sand-mudstone. The study shows that there exist linear proportional relations between the seismic reflection amplitude and wave impedance and the sand-mudstone percentage. The vertical resolution of seismic reflection is related not only to the incidence wavelet frequency into target zone, but also to the stratum sedimentary rhythm and structure.
In order to investigate the relation of vertical resolution of seismic reflection with stratum structure and frequency of incidence wavelet, and the relation between the percentage of sandstone and the amplitude and wave impedance of seismic reflection in sand layers, two geological models are developed. One is the stratum association model with different thickness of sand-mudstone; the other is the association of stratum models with different percentages of sand-mudstone. The study shows that there exist linear proportional relations between the seismic reflection amplitude and wave impedance and the sand-mudstone percentage. The vertical resolution of seismic reflection is related not only to the incidence wavelet frequency into target zone, but also to the stratum sedimentary rhythm and structure.
引文
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[21]朱振宇,刘洪,裴江云,等.旋转变换和Viterbi算法在波动方程叠前深度偏移预处理中的应用[J].新疆石油地质,2004,25(3):314-316.
[22]张永忠.应用横波各向异性评价碳酸盐岩裂缝性储集层[J].新疆石油地质,2004,25(3):436-438.
[23]李毓丰,桑洪,马全天,等.正交地震道在二维地震岩性解释中的应用[J].新疆石油地质,2005,26(3):313-315.
[24]陆基孟.地震勘探原理及资料解释[M].北京:石油工业出版社,l982.
[25]李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,l994.
[2]杨子川.波形分析在塔河油田勘探开发中的应用[J].新疆石油地质,2005,26(3):310-312.
[3]MalcomSambridge,GuyDriikoningen.Genetic Algorithms in Seismic Waveform Inversion[J].Geophys.J.Int.,1992,10(9):323-342.
[4]黄文松,年静波,刘喜武.地震波阻抗反演的预条件共轭梯度法[J].新疆石油地质,2006,27(4):425-428.
[5]张永刚.地震波阻抗反演技术的现状和发展[J].石油物探,2002,41(4):385-389.
[6]Claerbout J F.Fundamentals ofgeophysical data processing with application to petroleum prospecting[M].New York:Blackwell Scientific Publications,1985:125-185.
[7]赵峰,郑鸿明,杨晓海,等.地震资料数据处理中静校正对动校正速度的影响[J].新疆石油地质,2004,25(4):390-394.
[8]靳玲,丁艳堑,苏桂芝,等.地震参数在泌阳凹陷自云岩预测中的应用[J].新疆石油地质,2004,25(2):153-155.
[9]金博,刘震,邬长武,等.地震速度岩性解释系统的应用[J].新疆石油地质,2004,25(1):47-49.
[10]祝伟业,侯建国,高永富,等.速度量化在岩性预测中的应用[J].新疆石油地质,2001,22(2):122-123.
[11]唐光华,越谦平,汪满福,等.地震属性主组分预测技术在青西油田的应用[J].新疆石油地质,2004,25(3):322-324.
[12]于建国.陆相断陷盆地砂岩储层横向预测[M].北京:石工业出版社,2002.
[13]赵政璋.储层预测技术及应用实例[M].北京:石油工业版社,1998.
[14]勒军,谈继强,李天明,等.应用测井约束反演开展储层砂体描述[J].新疆石油地质,2003,24(1):72-74.
[15]张永华,赵雨晴,杨道庆,等.井约束反演技术在白云岩缝洞型储集层预测中的应用[J].新疆石油地质,2006,27(2):220-224.
[16]朱怀平,夏响华,孙立春,等.化探-地震法综合评价圈闭含油气性[J].新疆石油地质,2004,25(4):394-396.
[17]李文杰,魏修成,刘洋.VSP提高地震资料处理质量的新途径[J].新疆石油地质,2005,26(1):96-98.
[18]曾照荣,肖玲,白兴盈,等.声波测井与VSP测井平均速度的对比分析[J].新疆石油地质,2004,25(1):50-52.
[19]朱光明.垂直地震剖面方法[M].北京:石油工业出版社,1988.
[20]刘静,杨秀文,曾顺鹏.小波变换在气层预测中的应用[J].新疆石油地质,2004,25(4):431-432.
[21]朱振宇,刘洪,裴江云,等.旋转变换和Viterbi算法在波动方程叠前深度偏移预处理中的应用[J].新疆石油地质,2004,25(3):314-316.
[22]张永忠.应用横波各向异性评价碳酸盐岩裂缝性储集层[J].新疆石油地质,2004,25(3):436-438.
[23]李毓丰,桑洪,马全天,等.正交地震道在二维地震岩性解释中的应用[J].新疆石油地质,2005,26(3):313-315.
[24]陆基孟.地震勘探原理及资料解释[M].北京:石油工业出版社,l982.
[25]李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,l994.
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