CN1504763A - 相干切片断层多边形提取方法 - Google Patents

相干切片断层多边形提取方法 Download PDF

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CN1504763A
CN1504763A CNA021523800A CN02152380A CN1504763A CN 1504763 A CN1504763 A CN 1504763A CN A021523800 A CNA021523800 A CN A021523800A CN 02152380 A CN02152380 A CN 02152380A CN 1504763 A CN1504763 A CN 1504763A
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polygon
tomography
coherence
detection method
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张向君
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Daqing Petroleum Administration Bureau
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Daqing Petroleum Administration Bureau
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Abstract

一种相干切片断层多边形提取方法。解决了用手工方法提取相干切片断层多边形成图精度低和工作效率低的问题。包括图像的边缘检测方法,其特征在于:利用图像的边缘检测方法,检测出相干切片断层多边形,然后,将该多边形提取出来。该方法远高于用手工方法在相干切片断层上提取断层多边形的精度,而且工作效率高。

Description

相干切片断层多边形提取方法
技术领域:
本发明涉及油气勘探用于地震资料解释中的相干切片断层解释,属于相干切片断层多边形提取方法。
背景技术:
目前,在油气勘探用于地震资料解释中的相干切片断层解释,一般是先将三维地震资料通过相干处理,三维地震资料的相干处理,是通过相干数据体技术来实现的,相干数据体技术,是根据地震信号的相干性分析原理,计算地震数据体中所有相邻道之间的相干性。在断层切割的部位和岩性异常体的边界上,地震资料的相干性出现一个明显的差异,存在着不连续性,可在相干数据体及其相干切片上有效地识别出断层和岩性异常体。该相干切片可以视为含有断层的二维图像,然后,再利用该二维图像,用手工的方法作出断层多边形,用于构造成图。用该方法作出的断层多边形,成图精度和工作效率都很低。另外,在图像处理系统的边缘检测方法中有采用图像空间梯度检测方法、使用拉普拉斯算子检测方法、使用平均值的差检测方法等,这些方法都可以自动地检测出任意一图像的边缘,检测精度高;可一直没有在地震资料解释中使用过。
发明内容:
为了克服用手工的方法提取相干切片断层多边形成图精度低和工作效率低的问题,本发明提供一种相干切片断层多边形提取方法,该方法大大提高了相干切片断层多边形成图精度和工作效率。
本发明解决其技术问题所采用的技术方案是:利用图像的边缘检测方法,检测出相干切片断层多边形,然后,将该多边形提取出来。
上述所说的图像的边缘检测方法,是使用拉普拉斯算子检测方法实现的。
本发明的有益效果是:由于采用了图像的边缘检测方法检测相干切片断层多边形,且检测是用计算机自动检测,断层多边形就可以很容易地被检测出来,检测精度高,进而为多边形的提取提供了有利的保障;该方法远高于用手工方法在相干切片断层上提取断层多边形的精度,而工作效率高是手工方法的十几倍甚至几十倍。
附图说明:
图1是松辽盆地北部英台三维地震资料一张相干时间切片;
图2是对图1所示的相干时间切片用拉普拉斯算子检测方法对断层多边形提取的结果;
图3是由如图2所示的多张时间切片提取出的断层多边形按坐标位置投影到测线底图上的结果。
具体实施方式:
下面结合附图作详细说明:
将三维地震资料通过相干处理,作出相干切片,该相干切片可以视为含有断层的二维图像,然后,利用图像的边缘检测方法,即拉普拉斯算子检测方法,通过计算机地自动检测出断层的多边形,这样,就可以很容易地得到高精度的断层多边形。然后,就可以直接用于构造成图。
图1是松辽盆地北部英台三维地震资料一张相干时间切片。在该相干时间切片上,断层的展布及组合清晰地展示出来。图2是对图1所示的相干时间切片用拉普拉斯算子检测方法对断层多边形提取的结果。从图2中看出,断层多边形被清晰地检测出来,断层的组合关系、断层的破碎带也很客观地反应出来;如果用手工的方法提取该断层的多边形至少需要两个小时的时间,而用拉普拉斯算子检测方法提取该断层的多边形也就几分钟的时间,成图精度和工作效率都非常高;图3是由如图2所示的多张时间切片提取出的断层多边形按坐标位置投影到测线底图上的结果,直接用于构造成图。
需要指出的是,附图中所描述的仅仅是本发明的一个实施形式,因此它并不对本发明的保护范围构成限制。

Claims (2)

1、一种相干切片断层多边形提取方法,包括图像的边缘检测方法,其特征在于:利用图像的边缘检测方法,检测出相干切片断层多边形,然后,将该多边形提取出来。
2、根据权利要求1所述的相干切片断层多边形提取方法,其特征在于:图像的边缘检测方法是使用拉普拉斯算子检测方法实现的。
CNA021523800A 2002-12-05 2002-12-05 相干切片断层多边形提取方法 Pending CN1504763A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103941287A (zh) * 2014-04-16 2014-07-23 中国海洋石油总公司 一种基于平面导航的快速三维断层解释方法
CN104459801A (zh) * 2014-12-10 2015-03-25 中国石油天然气集团公司 用于识别断层的相干增强处理方法
CN112305598A (zh) * 2019-07-29 2021-02-02 中国石油化工股份有限公司 复杂地质异形体储层预测方法、存储介质及计算设备

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103941287A (zh) * 2014-04-16 2014-07-23 中国海洋石油总公司 一种基于平面导航的快速三维断层解释方法
CN103941287B (zh) * 2014-04-16 2016-10-12 中国海洋石油总公司 一种基于平面导航的快速三维断层解释方法
CN104459801A (zh) * 2014-12-10 2015-03-25 中国石油天然气集团公司 用于识别断层的相干增强处理方法
CN104459801B (zh) * 2014-12-10 2017-04-12 中国石油天然气集团公司 用于识别断层的相干增强处理方法
CN112305598A (zh) * 2019-07-29 2021-02-02 中国石油化工股份有限公司 复杂地质异形体储层预测方法、存储介质及计算设备
CN112305598B (zh) * 2019-07-29 2024-05-17 中国石油化工股份有限公司 复杂地质异形体储层预测方法、存储介质及计算设备

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