摘要
针对孔洞发育的特殊岩性(如火成岩和灰岩)储层,通过对岩心表面进行图像扫描和采集,采用图像分析的方法,利用微机编程,分别进行了岩心表面图像孔洞目标的自动提取和相关参数的自动计算,并结合实例进行了分析对比,取得较好的效果,解决了以往单纯依靠人工统计岩心表面孔洞参数存在误差大、费工费时的问题。岩心面孔率参数的分析计算及相关孔隙度参数的预测,弥补了实验室对火成岩、灰岩等特殊岩性非均质储层孔隙度参数计算方法的不足。
Pores and cavities developed in igneous rocks and limestone are extracted automatically as target and related parameters are calculated automatically,and correlation is done with cases by basing on core surface scanning and image collecting by using the method of image analysis and computer parameters. The method of image analysis got better purpose by analyzing and contrasting with example. The problem of big error work-consume and time-consume by artificial statistic before are solved by this method. The calculation of parameters of core plane porosity and the forecast of related parameter of core porosity make up the calculation inadequacy of porosity parameter in heterogeneous reservoirs with special lithology of igneous rocks and limestone.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第6期713-716,共4页
Journal of Northwest University（Natural Science Edition）
基金
国家"九五"科技重点攻关资助项目(P99044)
关键词
图像分析
岩心
孔洞
面孔率
孔隙度
image analysis
core
pores and cavities
plane porosity
porosity
