储层地震反演方法及其在Q三维工区的应用
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摘要
目前国内外利用地震资料进行储层预测时,采用的方法较多,但均存在一定问题(如反演分辨率低、多井外推及井间不闭合等)。针对Q三维地震工区目的层砂体薄、横向变化快的特点,在Strata软件上相继采用了三维波阻抗反演、测井参数反演和多属性伽马反演3种反演方法进行试验,最终确定了多属性伽马反演方法能较好地解决利用地震资料进行储层预测的一些问题,从而为工区勘探开发提供了可靠的高精度反演资料。
There are many approaches in the terms of using seismic data to predict the reservoir in China and abroad.However,problems still exist such as low resolution of inversion result,multi-well extrapolation and mis-closure of inter-well.Aimed at the zone of interest in the Q 3D seismic survey,which is characterized by thin sand body as well as the quickly lateral alternation,three inversion methods of Strata software are put into use,including the 3-D wave impedance inversion,the well log parameter inversion,and multi-attribute gamma inversion.The method of multi-attribute gamma inversion has been proved to be the best way to solve the problems above.It offers high precision seismic inversion data for the exploration and development in the working area.
There are many approaches in the terms of using seismic data to predict the reservoir in China and abroad.However,problems still exist such as low resolution of inversion result,multi-well extrapolation and mis-closure of inter-well.Aimed at the zone of interest in the Q 3D seismic survey,which is characterized by thin sand body as well as the quickly lateral alternation,three inversion methods of Strata software are put into use,including the 3-D wave impedance inversion,the well log parameter inversion,and multi-attribute gamma inversion.The method of multi-attribute gamma inversion has been proved to be the best way to solve the problems above.It offers high precision seismic inversion data for the exploration and development in the working area.
引文
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[9]江文荣,李允,蔡东升.秦皇岛27—33区块三维地震精细解释及储层预测[J].天然气地球科学,2006,17(4):502-509.
[2]邱兆泰,鲍五堂,张爱印.用Strata进行地震数据的反演[J].中国煤田地质,2006,18(增刊):45-48.
[3]耿会聚,谢庆宾,管守锐.Strata反演技术在柳屯洼陷沙三2-3亚段储层描述中的应用[J].物探与化探,2002,26(2):118-121.
[4]牟智全,周立宏,易继贵,等.地震储层预测技术在张东地区的应用[J].天然气地球科学,2008,19(6):849-856.
[5]撒利明.储层反演油气检测理论方法研究及其应用[D].北京:中国科学院研究生院,2003.
[6]张继武.应用Strata软件进行波阻抗反演的几点认识[J].新疆石油地质,1999,20(1):26-30.
[7]王延光.储层地震反演方法以及应用中的关键问题与对策[J].石油物探,2002,41(3):299-303.
[8]谢雄举,季玉新.优选地震属性预测储层参数的方法及其应用[J].石油物探,2004,43(增刊):127-131.
[9]江文荣,李允,蔡东升.秦皇岛27—33区块三维地震精细解释及储层预测[J].天然气地球科学,2006,17(4):502-509.
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