收稿日期: 2017-08-20
修回日期: 2017-09-29
网络出版日期: 2018-02-10
基金资助
国家科技重大专项(编号:2016ZX05014-001);国家自然科学基金(编号:41172130,U1403191);中央高校基本科研项目(编号:2-9-2015-209)联合资助.
Seismic facies analysis of tight sandstone reservoir based on SOM and HSV color technique
Received date: 2017-08-20
Revised date: 2017-09-29
Online published: 2018-02-10
地震相分析是致密砂岩储层预测的一项重要技术,可以描述地层相带的变化。针对自组织神经网络(Self-Organizing Map,SOM)在地震相解释过程中可视化差、解释精度低等问题,研发了一种基于SOM和HSV(Hue Saturation Value)染色技术的地震相分析技术。该方法使用收缩拓扑坐标算法对网格节点进行计算,借助HSV模型根据网格节点的位置进行染色,使得相近的位置具有相同的颜色,清晰地展示出高维输入空间的分布情况。为了验证方法的可行性,以苏里格气田东部召30区块为研究对象,通过地震属性与气层厚度叠合图以及AVO正演模拟,选取了对储层比较敏感的均方根振幅、平均瞬时频率、AVO截距和梯度等4种地震属性,运用自组织神经网络和HSV染色技术开展致密砂岩的地震相分析,并通过K均值对网格节点聚类,得到盒8段沉积相展布特征,能清晰地刻画南北向条带状河道分布,分析结果与先验地质认识较为吻合。该方法为沉积相展布特征的分析提供了一种更好的可视化方法,具有一定的应用价值。
张艳,张春雷,高世臣 . 基于SOM和HSV染色技术的致密砂岩储层地震相分析[J]. 天然气地球科学, 2018 , 29(2) : 259 -267 . DOI: 10.11764/j.issn.1672-1926.2017.09.016
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