一种基于沉积模式的多点地质统计学建模方法
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本文为国家科技重大项目(编号 2011ZX05011 001, 2011ZX05010 002)及长江大学优秀青年教师基金资助项目的成果。


A Pattern based Multiple Point Geostatistics Method
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    摘要:

    地下储层分布是位置的函数,不同位置处的沉积模式具有差异性。在储层预测时,除了挖掘已有资料所提供的结构和统计信息外,还应该引入待估点位置的信息,以反映沉积储层模式随位置变化的非平稳特征。提出了一种基于沉积模式的多点地质统计学方法,通过距离函数将储层特征与沉积位置相关联,采用整体替换、结构化随机路径以及多重网格策略再现沉积模式。基于现代鄱阳湖沉积所建立的合成非平稳性三角洲前缘沉积地层建模表明,新设计的方法较传统的建模方法更好地反映了三角洲相沉积地层非平稳沉积模式,新设计方法有更好的地质适用性。研究丰富了储层三维建模理论和方法,为实际油藏建模提供了新手段。

    Abstract:

    The distribution of reservoir is related with the location. When forecasting the reservoir, not only the geological structure and statistical information is investigated, but also the place must be considered to reflect the variability of the reservoir sedimentary pattern, the so called non stationary characteristics. A pattern based multiple point geostatistics is proposed in the paper. The distance function is introduced to characterize the relationship between the sedimentary pattern and the deposit place, the whole substitution, structured random path and multi grid strategy are selected to reproduce the sediment patterns. A synthesized 3 D training image is construced by the constrain of Poyang lake in China and the comparison test is executed. The new designed method is better reproduced the non stationary characteristics than the traditional one, and is more suitable for the simulation of delta front deposits.The research enriches the theory of reservoir stochastic modeling and provides a new choice in real reservoir modeling.

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尹艳树,张昌民,李少华,王军,宋道万,龚蔚青.2014.一种基于沉积模式的多点地质统计学建模方法[J].地质论评,60(1):216-221,[DOI].
.2014. A Pattern based Multiple Point Geostatistics Method[J]. Geological Review,60(1):216-221.

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  • 收稿日期:2012-02-27
  • 最后修改日期:2013-05-08
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  • 在线发布日期: 2014-01-17
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