河流相砂体追踪与预测技术——以港东开发区为例
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摘要
港东开发区明化镇组和馆陶组属于河流相沉积,应用高分辨率层序地层对比技术在明化镇组和馆陶组砂体细分小层的基础上,以三维地震资料为基础,通过精细层位标定确定储层砂体的地震响应特征,遵循层序对比的原则加密解释到小层,利用先进的分频处理解释技术和三维可视化技术,追踪河道砂体的分布范围。运用以点带面和以面促点的研究方法,对研究成果与实际钻井开展匹配分析。通过实际应用,取得了明显地质效果,为河道追踪预测技术提供了新的研究方法和手段。
The Minghuazhen Formation and Guantao Formation of Gangdong exploitation area are fluvial facies deposits.Based on 3-D seismic data and fine-division layers of the Formations by high-resolution sequence technique,the seismic response characteristics of reservoir sand layers are defined.Sub-layers are interpreted according to the sequence-contrasting law.The distribution range of channels is traced using the advanced spectrum decomposition processing-interpretation technique and 3-D vision technique.The results of calculation and real drilling data are matched well by using the methods of point-controlling-surface and surface-directing-point.The practical geological effects are very satisfactory.
The Minghuazhen Formation and Guantao Formation of Gangdong exploitation area are fluvial facies deposits.Based on 3-D seismic data and fine-division layers of the Formations by high-resolution sequence technique,the seismic response characteristics of reservoir sand layers are defined.Sub-layers are interpreted according to the sequence-contrasting law.The distribution range of channels is traced using the advanced spectrum decomposition processing-interpretation technique and 3-D vision technique.The results of calculation and real drilling data are matched well by using the methods of point-controlling-surface and surface-directing-point.The practical geological effects are very satisfactory.
引文
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[2]石占中,张一伟,熊琦华,等.大港油田港东开发区剩余油形成与分布的控制因素[J].石油学报,2005,26(1):79-82,86.
[3]尹艳树,翟瑞,吴胜和,等.综合多学科信息建模———以港东开发区二区六区块储层微相三维分布模型为例[J].天然气地球科学,2007,18(3):408-411.
[4]陈广军,张善文.对地震资料应用中几个常见问题的思考[J].石油地球物理勘探,2001,36(1):115-121.
[5]李海亮,张丽萍,黄云峰,等.合成记录在层位标定中的应用[J].西北油气勘探,2005,17(3):41-46.
[6]邓宏文,王红亮,王居峰,等.层序地层构成与层序控砂、控藏的字相似特征[J].石油与天然气地质,2004,25(5):491-495.
[7]唐建明,杨军,张哨楠,等.川西坳陷中、浅层气藏储层识别技术[J].石油与天然气地质2006,27(6):879-893,894.
[8]王大伟,刘震,赵伟,等.陆相油藏中砂泥岩互层时移地震遮掩效应及其对时移地震资料解释的影响[J].现代地质2006,20(4):635-640.
[9]罗忠辉,郑爱萍.三维可视化环境下潜江凹陷Eq341砂体展布规律研究[J].石油天然气学报,2006,28(5):32-34.
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