Paradigm三维可视化解释技术在大庆探区岩性解释中的应用
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摘要
几年来,大庆地区黑帝庙油层隐蔽油气藏的研究在理论上取得了重要突破,但在地震上如何清晰识别不同埋深的河道砂体、扇三角洲、席状砂等特殊异常体还存在一定困难。为了寻找更有效的三维可视化手段来清晰刻画隐蔽异常体的边界及异常体内部砂体的非均质性,利用Paradigm解释软件对三维可视化解释技术(包括:第三代本征值相干体技术;Gabor-morlet谱分解技术;Stratimagic属性合成技术;Voxel Geo 3D可视化解释技术)进行了储层成像研究,并在大庆探区进行了应用,该技术提高了三维地震资料的解释精度,在储层预测中取得了较好的效果。
In recent years,the subtle oil and gas reservoirs in Heidimiao Formation of Daqing have been studied,and great breakthrough has been obtained theoretically.But there are still some difficulties in identifying clearly the river channel sand-body,fan delta,sheet sand and so on at various depths.In order to find the method of describing effectively the boundary and sand body heterogeneity of subtle abnormal body,this paper studies the 3-D visualized interpretation techniques in image by using Paradigm software.These techniques include the third generation intrinsic value coherence technique,Gabor-morlet spectrum decomposition technique,Stratimagic attributes composing technique and Voxel Geo 3D visualized interpretation technique,which have been applied in Daqing exploration area.The interpretation accuracy of 3D seismic data is improved and the good effect has been obtained in reservoir prediction.
In recent years,the subtle oil and gas reservoirs in Heidimiao Formation of Daqing have been studied,and great breakthrough has been obtained theoretically.But there are still some difficulties in identifying clearly the river channel sand-body,fan delta,sheet sand and so on at various depths.In order to find the method of describing effectively the boundary and sand body heterogeneity of subtle abnormal body,this paper studies the 3-D visualized interpretation techniques in image by using Paradigm software.These techniques include the third generation intrinsic value coherence technique,Gabor-morlet spectrum decomposition technique,Stratimagic attributes composing technique and Voxel Geo 3D visualized interpretation technique,which have been applied in Daqing exploration area.The interpretation accuracy of 3D seismic data is improved and the good effect has been obtained in reservoir prediction.
引文
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[2]李丕龙,庞雄奇.隐蔽油气藏形成机理与勘探实践[M].北京:石油工业出版社,2004:1-3.
[3]熊翥.隐蔽油气藏勘探[J].勘探地球物理学进展,2004,27(6):391-392.
[4]王西文.岩性油气藏的储层预测及评价技术研究[J].石油物探,2004,43(6):512-514.
[5]MARFURT K J,KIRLIN R L.3-D seismic attribute using asemblance-based coherency algorithm[J].Geophysics,1998,63(4):1150-1165.
[6]邹才能,张颖.油气勘探开发实用新技术[M].北京:石油工业出版社,2002:240-248.
[7]张海燕,陈树民.本征值相干体技术在松辽盆地北部精细地质研究中的应用[J].大庆石油地质与开发,2008,27(2):140-141.
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