石油与天然气地质 ›› 2007, Vol. 28 ›› Issue (3): 401-406.doi: 10.11743/ogg20070315

• 方法技术 • 上一篇    下一篇

新近系馆陶组上段储层预测方法——以济阳坳陷沾化凹陷垦东北部地区为例

靖辉1, 张晓武2, 赵铭海3   

  1. 1. 中国石油大学, 北京, 102249;
    2. GNT国际公司, 北京, 100029;
    3. 中国石化, 胜利油田有限公司, 地质科学研究院, 山东, 东营, 257001
  • 收稿日期:2007-03-15 出版日期:2007-06-25 发布日期:2012-01-16

Reservoir prediction of the Upper Guantao Formation in the Neogene—an example from northern Kendong area in Zhanhua sag,Jiyang depression

Jing Hui1, Zhang Xiaowu2, Zhao Minghai3   

  1. 1. China University of Petroleum, Beijing 102249;
    2. GNT International Company, Beijing 100029;
    3. Geoscience Institute of Shengli Oilfield Company, SINOPEC, Dongying, Shandong 257001
  • Received:2007-03-15 Online:2007-06-25 Published:2012-01-16

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摘要：

综合分析垦东北部地区新近系馆陶组上段储层速度分析和正演分析结果,结合储层地质特征,提出适合本区储层预测的3种方法:1)由于孤立河道具有强振幅、透镜状的地震反射特征,可以应用可视化解释软件在振幅数据体上直接进行储层的立体追踪;2)连续的强振幅波峰和波谷指示砂岩的连续沉积,砂岩与泥岩速度相近,阻抗资料不能有效区分砂体,因此可选用特征曲线反演进行储层的空间分布研究;3)本区典型气层速度远低于泥岩速度,气层具有低阻抗特征,因此波阻抗反演可以预测气层的空间分布。

关键词: 正演模型, 地震波阻抗反演, 储层特征曲线反演, 地震属性, 储层预测, 济阳坳陷

Abstract:

Three reservoir prediction approaches are proposed based on reservoir characteristics,reservoir velocity,and forward modeling analyses in northern Kendong: 1) direct 3-D tracing of the reservoirs on amplitude data volume can be performed with visualized interpretation software since the isolated river channel sands feature in seismic reflectance signatures of high amplitude and lenticular shape;2) characteristic curve inversion can be an option in the study of spatial distribution of reservoirs due to the facts that continuous crests and troughs of high amplitude indicate a successive sedimentation of sandstone and similar velocities of sandstone and mudstone render an ineffective distinction of sandbody through impedance data;and 3) wave impedance inversion can be used in prediction of the spatial distribution of gas reservoirs because the typical gas reservoirs in the study area show low impedance and a velocity far lower than that of mudstone.An integrated application of the three approaches is of great significance in improving the accuracy of reservoir prediction and performing lateral prediction of reservoirs in the study area.

Key words: forward model, seismic wave impedance inversion, reservoir characteristic curve inversion, seismic attribute, reservoir prediction, Jiyang depression

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