声波曲线重构技术在地震反演中的应用
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摘要
针对在复杂储层预测中传统的反演方法,有时不能够很好地进行储层预测与描述的难题,本文通过储层特征曲线重构的方法,利用能够突出反映地层特征的曲线高频部分和声波曲线的低频部分,重构出能够准确的反映地层物性变化的拟声波曲线,然后在已求得的时深关系下,用拟声波进行拟声波代替声波曲线进行地震反演。反演结果分析表明该方法突出了储层响应特征,提高了反演结果的可解释性,解决了薄层等非常规储层描述的地质难题。笔者利用声波曲线重构技术对塔里木盆地三顺和孔雀河工区资料进行了反演,反演结果很好地反映了储层的展部特征,有效的指导了生产工作。
Due to the traditional methods of seismic inversion can't effectively predict and describe the characteristic of the complex reservoirs,by using the low-frequency of acoustic log and the high frequency of log curve which can reflect the characteristic of reservoir,the pseudo-acoustic curve which can exactly reflect the characteristic of reservoir was reconstructed,and then the acoustic curve was gave way to the pseudo-acoustic curve for inversion.The result of inversion showed that the method could enhance the reservoirs' character,greatly improved interpretability of inversion result and solved the geological problem of description of thin reservoirs.The pseudo-acoustic curve was used to inversion of seismic data in Sanshun and Kongquehe area of the Tarim Basin.And the results showed the local characteristic of reservoirs,directly guided hydrocarbon exploration in the area.
Due to the traditional methods of seismic inversion can't effectively predict and describe the characteristic of the complex reservoirs,by using the low-frequency of acoustic log and the high frequency of log curve which can reflect the characteristic of reservoir,the pseudo-acoustic curve which can exactly reflect the characteristic of reservoir was reconstructed,and then the acoustic curve was gave way to the pseudo-acoustic curve for inversion.The result of inversion showed that the method could enhance the reservoirs' character,greatly improved interpretability of inversion result and solved the geological problem of description of thin reservoirs.The pseudo-acoustic curve was used to inversion of seismic data in Sanshun and Kongquehe area of the Tarim Basin.And the results showed the local characteristic of reservoirs,directly guided hydrocarbon exploration in the area.
引文
[1]甘利灯,姚逢昌,郑晓东,等.非常规储集层地震横向预测的一种方法[J].石油勘探与开发,2000,27(2):65～68
[2]王玉学,汤达祯,龚建华,等.拟声波反演技术在储层预测中的应用[J].石油实验地质,2004,26(1):303～305
[3]姜传金,马学辉,周恩红,等.拟声波曲线构建的意义及应用[J].大庆石油地质与开发,2004,23(1):12～14
[4]杨建春,等.拟声波曲线构建技术的新进展[J].内蒙古石油化工,2004,30(s1):129
[2]王玉学,汤达祯,龚建华,等.拟声波反演技术在储层预测中的应用[J].石油实验地质,2004,26(1):303～305
[3]姜传金,马学辉,周恩红,等.拟声波曲线构建的意义及应用[J].大庆石油地质与开发,2004,23(1):12～14
[4]杨建春,等.拟声波曲线构建技术的新进展[J].内蒙古石油化工,2004,30(s1):129
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